CARRIER Air Conditioner/heat Pump(outside Unit) Manual L1001418

User Manual: CARRIER CARRIER Air conditioner/heat pump(outside unit) Manual CARRIER Air conditioner/heat pump(outside unit) Owner's Manual, CARRIER Air conditioner/heat pump(outside unit) installation guides

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AQUAZONE TM

50PSH, PSV, PSD006-070

Single-Stage Water Source Heat Pumps

with PURON ®Refrigerant (R-410A)

Installation, Start-Up, and

Service Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS ....................... 2

GENERAL .......................................... 2

INSTALLATION .................................. 2-31

Step 1 -- Check Jobsite ............................ 2

Step 2 -- Check Unit ............................... 3

•STORAGE

• PROTECTION

• INSPECT UNIT

Step 3 -- Locate Unit .............................. 8

• FIELD CONVERSION OF DISCHARGE AIR

Step 4 -- Mount the Unit ........................... 9

• HORIZONTAL UNIT

• VERTICAL UNITS

Step 5 -- Check Duct System ...................... 9

• SOUND ATTENUATION

• EXISTING DUCT SYSTEM

Step 6-- Install Condensate Drain ................. 9

• HORIZONTAL UNIT

• VERTICAL UNITS

• VENTING

Step 7 -- Pipe Connections ....................... l0

• WATER LOOP APPLICATIONS

• GROUND-WATER APPLICATIONS

• GROUND-LOOP APPLICATIONS

• INSTALLATION OF SUPPLY AND RETURN HOSE

KIT

Step 8 -- Wire Field Power Supply ................ 13

• POWER CONNECTION

• SUPPLY VOLTAGE

• 208-VOLT OPERATION

• 460-VOLT OPERATION

Step 9 -- Wire Field Controls ..................... 27

• THERMOSTAT CONNECTIONS

• WATER FREEZE PROTECTION

• AIR COIL FREEZE PROTECTION

• ACCESSORY CONNECTIONS

• WATER SOLENOID VALVES

• WSHP OPEN WIRING

Step 10 -- Operate ECM Interface Board .......... 29

•COOLING

• HEATING

• CFM ADJUST

• DEHUMIDIFICATION MODE

PRE-START-U P ................................... 32

System Checkout ................................. 32

FIELD SELECTABLE INPUTS .................. 32-35

Complete C Control Jumper Settings ............. 32

Deluxe D Control Jumper Settings ................ 32

Complete C Control DIP Switches ................. 32

Deluxe D Control DIP Switches ................... 32

Units with Modulating Hot Water Reheat

(HWR) Option ................................... 33

Deluxe D Control Accessory

Relay Configurations ........................... 35

Page

START-UP ...................................... 35-42

Operating Limits .................................. 35

Scroll Compressor Rotation ....................... 35

Unit Start-Up Cooling Mode ....................... 35

Unit Start-Up Heating Mode ....................... 36

Unit Start-Up with WSHP Open Controls .......... 40

Flow Regulation ................................... 41

Flushing .......................................... 41

Antifreeze ......................................... 41

Cooling Tower/Boiler Systems .................... 42

Ground Coupled, Closed Loop and Plateframe

Heat Exchanger Well Systems ................... 42

OPERATION .................................... 42-46

Power Up Mode ................................... 42

Units with Aquazone Complete C Control ......... 42

Units with Aquazone Deluxe D Control ............ 42

Units with HWR Option ............................ 43

Units with WSHP Open Multiple Protocol .......... 43

COMPLETE C AND DELUXE D BOARD

SYSTEM TEST ............................... 46,47

Test Mode ......................................... 46

WSHP Open Test Mode ............................ 47

Retry Mode ........................................ 47

Aquazone Deluxe D Control LED Indicators ....... 47

SERVICE ....................................... 48,49

Filters ............................................. 48

Water Coil ......................................... 48

Condensate Drain Pans ........................... 48

Refrigerant System ................................ 48

Compressor ....................................... 48

Fan Motors ........................................ 48

Condensate Drain Cleaning ....................... 48

Air Coil Cleaning .................................. 48

Condenser Cleaning .............................. 48

Checking System Charge ......................... 49

Refrigerant Charging .............................. 49

Air Coil Fan Motor Removal ....................... 49

Replacing the WSHP Open Controller's

Battery .......................................... 49

TROUBLESHOOTING ........................... 49-57

Control Sensors ................................... 49

Thermistor ........................................ 49

WSHP Open Controller ............................ 50

Thermostatic Expansion Valves ................... 50

Stopped or Malfunctioned ECM Motor ............. 54

Moisture Check .................................... 55

APPENDIX A -- WSHP OPEN SCREEN

CONFIGURATION ............................ 58-63

50PSH,PSV, PSD START-UP

CHECKLIST ............................ CL-I, CL-2

IMPORTANT: Read the entire instruction manual before |

starting installation. 1

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53500055-01 Printed in U.S.A. Form 50PS-3SI Pg 1 7-09 Replaces: 50PS-2SI

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can

be hazardous due to system pressure and electrical compo-

nents. Only trained and qualified service personnel should

install, repair, or service air-conditioning equipment.

Untrained personnel can perform basic maintenance func-

tions such as cleaning coils and filters and replacing filters. All

other operations should be performed by trained service per-

sonnel. When working on air-conditioning equipment, observe

precautions in the literature, tags and labels attached to the unit,

and other safety precautions that may apply.

Improper installation, adjustment, alteration, service, main-

tenance, or use can cause explosion, fire, electrical shock or

other conditions which may cause personal injury or property

damage. Consult a qualified installer, service agency, or a local

distributor or branch for reformation or assistance. The

qualified installer or agency must use factory-authorized kits or

accessories when modifying this product. Refer to the individ-

ual instructions packaged with the kits or accessories when

installing.

Follow all safety codes. Wear safety glasses and work

gloves. Use quenching cloth for brazing operations. Have fire

extinguisher available. Read these instructions thoroughly and

follow all warnings or cautions attached to the unit. Consult

local building codes and the National Electrical Code (NEC)

for special installation requirements.

Understand the signal words -- DANGER. WARNING,

and CAUTION. DANGER identifies the most serious hazards

which will result in severe personal injury or death.

WARNING signifies hazards that could result in personal iNu-

ry or death. CAUTION is used to identify unsafe practices,

which would result in minor personal injury or product and

property damage.

Recognize safety reformation. This is the safety-alert

symbol (z_k)- When this symbol is displayed on the unit and in

instructions or manuals, be alert to the potential for personal

injury.

Electrical shock can cause personal Njury or death. Before

installing or servicing system, always turn off main power

to system. There may be more than one disconnect switch.

Turn off accessory heater power if applicable.

GENERAL

This installation and start-up instructions literature is for

Aquazone TM single-stage water source heat pump systems.

Water source heat pumps (WSHPs) are single-package hori-

zontally and vertically mounted units with electronic controls

designed for year-round cooling and heating. Aquazone

WSHPs are available in the following unit configurations:

• 50PSH unit with horizontal airflow and right, left or back

discharge

• 50PSV unit with vertical airflow and top discharge

• 50PSD unit with vertical airflow and bottom discharge

(downflow)

IMPORTANT: The installation of water source heat pump

units and all associated components, parts, and accessories

which make up the installation shall be in accordance with

the regulations of ALL authorities having jurisdiction and

MUST conform to all applicable codes. It is the responsi-

bility of the installing contractor to determine and comply

with ALL applicable codes and regulations.

INSTALLATION

Step 1ECheck Jobsite EInstallation, operation and

maintenance instructions are provided with each unit. Before

unit start-up, read all manuals and become familiar with the

unit and its operation. Thoroughly check out the system before

operation. Complete the inspections and instructions listed

below to prepare a unit for installation. See Table 1 for unit

physical data.

IMPORTANT: This equipment is designed for indoor

installation ONLY. Extreme variations in temperature,

humidity and corrosive water or air will adversely affect

the unit performance, reliability and service life.

HORIZONTAL UNIT (50PSH) -- Horizontal units are design-

ed for indoor installation only. Be sure to allow adequate space

around the unit for servicing. Ret_r to Fig. 1 for an illustration of

a typical horizontal installation. See Fig. 2 for overall unit

dimensions.

VERTICAL AND DOWNFLOW UNITS (50PSV, PSD) --

Vertical units are designed for indoor installations. While verti-

cal units are typically installed in a floor-level closet or a small

mechanical room, the unit access guidelines for these units are

very similar to those described for horizontal units. See Fig. 3

and 4 for overall dimensions. Refer to Fig. 5 for an example of

a typical vertical installation. Refer to Fig. 6 for a sample

downflow installation.

To avoid equipment damage, do not use these units as a

source of heating or cooling during the construction pro-

cess. The mechanical components and filters used in these

units quickly becomes clogged with construction dirt and

debris which may cause system damage.

Table 1 -- Physical

50PS UNIT SIZE 006"I oog*I

COMPRESSOR (1 Each) Rotary

FACTORY CHARGE R-410A (oz) 24 32

ECM FAN MOTOR AND BLOWER

Fan Motor (Hp) N/A N/A

Blower Wheel Size (D x W) (in.) N/A N/A

PSC FAN MOTOR AND BLOWER

(3 Speeds)

Fan Motor (Hp) 1/25 1/20

High Static Fan Motor (Hp) N/A N/A

Blower Wheel Size (D x W) (in.) 6 x 5 6 x 5

Heat Exchanger Water Volume (gal.) 0.56 0.56

COAXIAL VOLUME (gal.) .17 .29

WATER CONNECTION SIZE, FPT (in.) 1/2 1/2

HWG CONNECTION SIZE, FPT (in.) N/A N/A

VERTICAL UPFLOW/DOWNFLOW

Air Coil Dimensions (H x W) (in.) 16x16 16x16

Throwaway Filter, Standard 1-in.,

Qty._Size 1_, 1_,

16x20 16x20

Data -- 50PSH, PSV, PSD018-070 Units

9t2" 018 Io24 I989 Io38 Io42 I948 I969 I979

Scroll

34 50 56 58 70 80 80 136 144

N/A 1/2 1/2 1/2 1/2 1/2 1 1 1

N/A 9x7 9x7 9x7 11x10 11x10 11x10 11x10 11x10

1_ l& 1/5 1G 1_ 1_ 3& 1 1

N/A 1_ l& 1_ 1_ 3& 3& 1 N/A

6x5 9x7 9x7 9x7 10x10 10x10 10x10 11x10 11 x10

0.56 0.56 0.76 0.76 0.92 1.24 1.24 1.56 1.56

.45 .56 .76 .76 .92 1.24 1.24 1.56 1.56

1_ 3_ 3/4 3/4 _4 1111

16 x 16 24 x 20 28 x20 28 x 20 28 x 25 32 x 25 32 x 25 36 x 25 36 x 25

1.., 1,.,

1_. 1._ 1_, 1_, 1_, 2_. 2_. 16x30; 16x30;

16 x 20 24 x 24 28 x 24 28 x 24 28 x 30 16 x 30 16 x 30 1.., 1.,

20 x 30 20 x 30

Weight

Operating (Ib) 126 146

Packaged (Ib) 136 156

HORIZONTAL

Air Coil Dimensions (H x W) (in.) 16x16 16x16

Throwaway Filter, Standard 1-in.,

Qty._Size 1_, 1_,

16x20 16x20

Weight

Operating (Ib) 136 156

Packaged (Ib) 146 166

Corner (Ib)

Left Front 45.0 55.0

Left Rear 33,0 36.0

Right Front 30.0 33.0

Right Rear 28.0 32.0

150 252 266 268 327 414 416 441 443

160 262 276 278 337 424 426 451 453

16 x 16 18 x 27 18 x 31 18 x 31 20 x 35 20 x 40 20 x40 20 x 45 20 x 45

1_, 1_. 1_.

1_. 2_. 2_, 2_, 12x 20; 18x20; 18x20; 2._ 2_,

16x20 18x18 18x18 18x18 1,., 1.,. 1.,. 20x24 20x24

20 x 25 20 x 24 20 x 24

160 257 266 268 327 414 416 441 443

170 267 276 278 337 424 426 451 453

56,0 74.7 78.8 79,4 104,4 144.3 145,0 182.3 183.1

37.0 66,2 69.9 70.4 83.7 97.7 98.1 78.4 78.8

34,0 63,6 67.2 67.7 74.9 92.1 92.6 72.5 72.8

33.0 47.5 50.2 50.5 64.0 79.9 80.3 107.8 108.3

LEGEND

ECM -- Electronically Controlled Motor PSC -- Permanent Split Capacitor

FPT -- Female Pipe Thread TXV -- Thermostatic Expansion Valve

HWG -- Hot Water Generator

*Unit sizes 006-012 not available on 50PSD unit.

NOTE: All units have spring compressor mountings, TXV expansion devices, and 1/2-

in. and 3/4-in. electrical knockouts.

Step 2-- Check Unit -- Upon receipt of shipment at

the jobsite, carefully check the shipment against the bill of

lading. Make sure all units have been received. Inspect the car-

ton or crating of each unit, and inspect each unit for damage.

Ensure the shipping company makes proper notation of any

shortages or damage on all copies of the freight bill. Concealed

damage not discovered during unloading must be reported to

the shipping company within 15 days of receipt of shipment.

NOTE: It is the responsibility of the purchaser to file all

necessary claims with the shipping company.

1. Be sure that the location chosen for unit installation pro-

vides ambient temperatures maintained above freezing.

Well water applications are especially susceptible to

freezing.

2. Be sure the installation location is isolated from sleeping

areas, private offices and other acoustically sensitive

spaces.

NOTE: A sound control accessory package may be used

to help eliminate sound in sensitive spaces.

3. Check local codes to be sure a secondary drain pan is not

required under the unit.

4. Be sure unit is mounted at a height sufficient to provide

an adequate slope of the condensate lines. If an appropri-

ate slope cannot be achieved, a field-supplied condensate

pump may be required.

5. Provide sufficient space for duct connection. Do not al-

low the weight of the ductwork to rest on the unit.

6. Provide adequate clearance for filter replacement and

drain pan cleaning. Do not allow piping, conduit, etc. to

block filter access.

7. Provide sufficient access to allow maintenance and

servicing of the fan and fan motor, compressor and coils.

Removal of the entire unit from the closet should not be

necessary.

8. Provide an unobstructed path to the unit within the closet

or mechanical room. Space should be sufficient to allow

removal of unit if necessary.

9. Provide ready access to water valves and fittings, and

screwdriver access to unit side panels, discharge collar,

and all electrical connections.

10. Where access to side panels is limited, pre-removal of the

control box side mounting screws may be necessary for

future servicing.

STORAGE -- If the equipment is not needed ilrnnediately at

the jobsite, it should be left in its shipping carton and stored in a

clean, dry area of the building or in a warehouse. Units must be

stored in an upright position at all tflnes. If carton stacking is

necessary, stack units a maximum of 3 high. Do not remove

any equipment from its shipping package until it is needed for

installation.

PROTECTION -- Once the units are properly positioned on

the jobsite, cover them with either a shipping carton, vinyl fihn,

or an equivalent protective covering. Cap open ends of pipes

stored on the jobsite. This precaution is especially important in

areas where painting, plastering, or spraying of fireproof mate-

rial, etc. is not yet complete. Foreign material that accumulates

within the units can prevent proper start-up and necessitate

costly clean-up operations.

Beforeinstallinganyofthesystemcomponents,besureto

examineeachpipe,fitting,andvalve,andremoveanydirtor

foreignmaterialfoundinoronthesecomponents.

DONOTstoreorinstallunitsincorrosiveenvironmentsor

inlocationssubjecttotemperatureorhumidityextremes

(e.g.,attics,garages,rooftops,etc.).Corrosiveconditions

andhightemperatureorhumiditycansignificantlyreduce

performance,reliability,andservicelife.Alwaysmove

unitsinanuprightposition.Tiltingunitsontheirsidesmay

causeequipmentdamage.

INSPECTUNIT-- Topreparetheunitforinstallation,coln-

pletetheprocedureslistedbelow:

1. Comparetheelectricaldataontheunitnameplatewith

orderingandshippinginformationto verifythatthe

correctunithasbeenshipped.

2. Donotremovethepackaginguntiltheunitisreadyfor

installation.

3. Verifythattheunit'srefrigerantrobingisfreeofkinksor

dents,andthatit doesnottouchotherunitcomponents.

4. Inspectallelectricalconnections.Besureconnectionsare

cleanandtightattheirterminations.

5. Loosencompressorboltsuntilthecompressorridesfreely

onsprings.Removeshippingrestraints.

6. Removethefour1/4in.shippingboltsfromcompressor

supportplate(twoboltsoneachside)tomaxilnizevibra-

tionandsoundalternation.

Failuretoremoveshippingbracketsfromspring-mounted

compressorswill causeexcessivenoiseandcouldcause

componentfailureduetoaddedvibration.

7.

8.

9.

Remove any blower support cardboard froln inlet of the

blower.

Locate and verify any accessory kit located in compressor

and/or blower section.

Remove any access panel screws that may be difficult to

remove once unit is installed.

Field-supplied transition to

minimize pressure loss

\

Supply Air

Flexible

Insulated supply duct with Connection

at least one 90 degree elbow Field-Supplied Unit Power

to reduce air noise Electric Heat Disconnect

(field-supplied) (if applicable) (by others)

Unit Hanger

Aux Electric (factory-

Heat Disconnect supplied)

3/8" threaded rods

(by others) ___

FilterAccess Return

,Power Wiring

Unit

Thermostat

Wiring

(fieldqnstalled

accessory)

Stainless steel

braid hose

Balancing Valve (field-

Y)

Low Pressure Drop Water

Control Valve (optional)

(field-instNled accessory)

Building

Waterln

Ball Valve with optional

integral P/Tplug (typical for supply

and return piping) (field-installed accessory)

3/8" Threaded

Rod (by others)

Vibration Isolator "_

(white-compressor end

and red-blower end)

Double Hex Nuts

(by others)

Integral hanger support-

pre-attached in factory

UNIT HANGER ISOLATION DETAIL

Fig. 1 --Typical Installation- 50PSH Unit

50PSH

UNIT

SIZE

OVERALL

CABINET

(in.)

WATER CONNECTIONS

(in.)

A B C

Width Depth Height

22.4 43.1 17.3

22.4 62.2 19.3

22.4 62.2 19.3

25.4 71.2 21.3

25.4 76.2 21.3

25.4 81.2 21.3

1 2 3 4 5 Loop HWG

Water FPT

D E F G H FPT

In Out HWG HWG Con-

In Out densate

WATER

CONNEC- ELECTRICAL

TIONS (in.) - KNOCKOUTS

UNITS WITH (in.)

HWR

1 2 JK L

112 112 314

Cond Cond Cond

Loop Loop Low Ext Power

In DOut E Voltage Pump Supply

DISCHARGE CONNECTION (in.)

DUCT FLANGE INSTALLED

(-+0.10 in.)

M N OP Q R

(LH Supply Supply (RH

rtrn) Height Width rtrn

RETURN

CONNECTION (in.)

USING RETURN

AIR OPENING

(-+0.10 in.)

S T U V

Return Return

Depth Height

00_2v9,_nn 3.7 9.7 N/A N/A 0.8 1/2 N/A N/A N/A 3.8 6.3 8.8 5.3 4.1 9.0 9.0 5.3 4.1 17.1 15.3 2.1 1.0

018 2.1 10.0 13.9 16.9 0.6 3/4 1/2 2.1 10.0 3.6 6.1 8.6 3.6 2.0 12.5 15.5 3.6 2.0 28.1 16.2 2.3 1.5

024,

030 2.1 10.0 13.9 16.9 0.6 3/4 1/2 5.26 13.13 3.6 6.1 8.6 3.6 2.0 12.5 15.5 3.6 2.0 33.8 16.2 2.3 1.5

036 3.4 10.8 15.6 18.9 0.6 3/4 1/2 5.96 13.13 3.6 6.1 8.6 3.1 1.2 19.0 17.5 3.1 .0 34.8 18.2 3.1 1.5

042,

048 3.4 10.8 15.6 18.9 0.6 1 1/2 5.96 13.13 3.6 6.1 8.6 3.1 1.2 19.0 17.5 3.1 .0 39.8 18.2 3.1 1.5

060, 3.4 10.8 15.6 18.9 0.6 1 1/2 5.96 13.13 3.6 6.1 8.6 3.1 1.2 19.0 17.5 3.1 .0 44.8 18.2 3.1 1.5

O7O

NOTES:

1. Condensate is 3/4-in. FPT copper.

2. Horizontal unit shipped with filter bracket only. This bracket should be

removed for return duct connection.

3. Discharge flange and hanger kit is factory installed.

4. Shaded areas are recommended service areas, not required.

LEGEND

ASP -- Alternate Service Panel

BSP -- Blower Service Panel

CAP -- Control Access Panel

CSP -- Compressor Service Panel

FPT -- Female Pipe Thread

HWG -- Hot Water Generator

HWR -- Hot Water Reheat

LH -- Left Hand

RH -- Right Hand

PSC BLOWER AIRFLOW

CONFIGURATION

CODE RETURN DISCHARGE

ELeft Back

B Right Back

S Left Right

Z Right Left

LEFT RETURN RIGHT RETURN

2' Service CSP

Access 2' ServiceAccess

R*ght _--x.[ ",W Ioltll _"_l_l _

_ Back

Discharge 3/4" FPT

Power Supply

3/4" Knockout

_A_

Front-View

__ _ Unit Hanger Detail

I I= C _Y .......

P _n. _,.

BSP )06-012 43,1 24,5

O _ )18-030 62,1 24,5

]36 71,1 27,5

342-048 76.1 27.5

36O,,070 81,1 27,5

x

Right

View

Front

Configuration E-Left Return /Back Discharge

V

Left _T

View

ASP

Configuration S -Left Return /Right Discharge -Air Coil Opening

1.1"

Ul--S- I jAir CoilCSP !

Front

B_

uration S - Left Return /Right Discharge -Air Coil Opening

Confic

Front 2' Service

Access

1.6" Right Return

3.25-

/

Condensate

3/4" FPT

Back

Discharge

Left

Discharge

in.

20.3

20.3

23.3

23.3

23.3

i

Configuration B-Right Return /Back Discharge

/IB,o e,l CSP

'_M

Configuration Z-Right Return /Left Discharge -Air Coil Opening

cO Left

o:o:

Air Coil

'\ _s I U I /V

Right

ASP T View

i

Configuration Z - Right Return /Left Discharge -Air Coil Opening

Fig. 2 -- 50PSH Dimensional Data

50PSV

UNIT

SIZE

OVERALL

CABINET

(in.)

WATER CONNECTIONS

(in.)

1 2 3 4 5

A B C

Width Depth Height

22.4 21.6 34.5

22.4 25.6 44.6

22.4 25.6 46.5

25.4 30.6 50.5

25.4 30.6 54.5

25.4 30.6 58.5

D E F G H

In Out HWG HWG Conden-

In Out sate

Loop

Water

FPT

HWG

FPT

WATER

CONNEC- ELECTRICAL

TIONS (in.) - KNOCKOUTS

UNITS WITH (in.)

HWR

1 2 J K L

1/2 1/2 3/4

Cond Cond Cond

Loop Loop Low Ext Power

In D Out E Voltage Pump Supply

DISCHARGE CONNECTION (in.)

DUCT FLANGE INSTALLED

(-+0.10 in.)

M N OP Q R

(LH Supply Supply (RH

rtrn) Width Depth rtrn)

RETURN

CONNECTION (in,)

USING RETURN

AIR OPENING

(-+0.10 in.)

ST U

Return Return

Depth Height

00_2vg,_nn 3.7 9.7 N/A N/A 7.4 '/2 N/A N/A N/A 3.8 6.3 8.8 6.7 6.3 9.0 9.0 6.7 2.3 17.1 15.3 1.0

018 2.1 10.0 13.9 16.9 7.8 3/4 1/2 2.1 10.0 3.6 6.1 8.6 7.2 5.8 14.0 14.0 4.9 2.2 21.1 23.2 1.0

024, 2.1 10.0 13.9 16.9 7.8 3/4 1/2 5.26 13.13 3.6 6.1 8.6 7.2 5.8 14.0 14.0 4.9 2.2 21.1 27.2 1.0

030

036 3.4 10.8 15.6 18.9 7.8 3/4 1/2 5.96 13.13 3.6 6.1 8.6 6.4 6.3 18.0 18.0 5.3 2.2 26.1 27.2 1.0

042, 3.4 10.8 15.6 18.9 7.8 1 1/2 5.96 13.13 3.6 6.1 8.6 6.4 6.3 18.0 18.0 5.3 2.2 26.1 31.2 1.0

048

060, 3.4 10.8 15.6 18.9 7.8 1 1/2 5.96 13.13 3.6 6.1 8.6 6.4 6.3 18.0 18.0 5.3 2.2 26.1 35.2 1.0

070

NOTES: LEGEND PSC BLOWER AIRFLOW

CONFIGURATION

1. Condensate is s/4-in. FPT copper and is switchable from side to front.

2. Vertical unit shipped with filter bracket only, extending from unit 2.5-in.

This bracket should be removed for return duct connection.

3. Discharge flange field installed.

4. Shaded areas are recommended service areas, not required.

ASP -- Alternate Service Panel

BSP -- Blower Service Panel

CAP -- Control Access Panel CODE IRETURN IDISCHARGE

CSP -- Compressor Service Panel L ILeft ITop

FPT -- Female Pipe Thread

HWG -- Hot Water Generator RD_hn,V.t 7_,_i.,

HWR -- Hot Water Reheat

LH -- Left Hand

RH -- Right Hand

Filter Bracket

\

FieId Installed

Discharge Flange Access Panels

P

QAir Coil Side

i

B

-N- --P--

/\

\

Air Coil Side

R- Configuration Right Return /Top Discharge L - Configuration Left Return /Top Discharge

- Top View - Top View

S

U_

C

Front

r

_ ASP

Right Return

- Air Coil Opening

- Right Side View

Air Coil-- X

CSP Left Rtr

(right

Opposite

3/4" IPT

Power Supply 3/4"

i

Left Return Front-View

- Air Coil Opening

- Left Side View

Fig. 3-- 50PSV Dimensional Data

WATER RETURN

CONNEC- DISCHARGE CONNECTION (in,) CONNECTION (in.)

WATER CONNECTIONS TIONS (in.) - DUCT FLANGE INSTALLED USING RETURN

OVERALL (in,) UNITS WITH (--.0.10 in.) AIR OPENING

CABINET HWR (-+0.10 in.)

50PSD (in,)

UNIT

SIZE 1 2

Loop HWG

Water FPT

FPT

A B C

Width Depth Height

22.4 25.6 48.4

22.4 25.6 52.5

25.4 30.6 54.5

25.4 30.6 58.5

25.4 30.6 62.5

12 3 4 5

F G H

D E HWG HWG Conden-

In Out In Out sate

21 100 13.9 16.9 3.6

2.1 10.0 13.9 16.9 3.6

3.4 10.8 15.6 18.9 3.6

3.4 10.8 15.6 18.9 3.6

MN O P Q R

(LH Supply Supply (RH

rtrn) Width Depth rtrn)

Loop Loop

In D Out E

2.1 10.0

5.96 13.13

5.96 13.13

5.96 13.13

5.96 13.13

ELECTRICAL

KNOCKOUTS

(in.)

J K L

t& t& 3&

Cond Cond Cond

Low Ext Power

Voltage Pump Supply

3.6 6.1 8.6

3.6 6.1 8.6

3.6 6.1 8.6

3.6 6.1 8.6

3.6 6.1 8.6

STU

Return Return

Depth Height

018 s/4 1/2 6.7 8.4 10.1 9.1 10.8 2.2 21.1 23.2 1.0

024,

030 s/4 1/2 6.7 84 10.1 91 10.8 2.2 21.1 27.2 1.0

036 s/4 1/2 7.2 9.0 13.4 12.9 10.4 2.2 26.1 27.2 1.0

042, 1 1/2 7.2 9.0 13.4 12.9 10.4 2.2 26.1 31.2 1.0

048

060,

070 3.4 10.8 15.6 18.9 3.6 1 1/2 7.2 9.0 13.4 12.9 10.4 2.2 26.1 35.2 1.0

NOTES: LEGEND

ASP -- Alternate Service Panel

BSP -- Blower Service Panel

CAP -- Control Access Panel

CSP -- Compressor Service Panel

FPT -- Female Pipe Thread

HWG -- Hot Water Generator

HWR -- Hot Water Reheat

LH -- Left Hand

RH -- Right Hand

PSC BLOWER AIRFLOW

CONFIGURATION

CODE I RETURN DISCHARGE

L I Left Bottom

RRight Bottom

1. Condensate is s/4-in. FPT copper and is switchable from side to front.

2. Vertical unit shipped with filter bracket only, extending from unit 2.5-in.

This bracket should be removed for return duct connection.

3. Downflow unit does not have discharge flange, and is rated for zero

clearance installation.

4. Shaded areas are recommended service areas, not required.

CSP

Front

ii

)nt

o ;°we;I

Q

I Air Coil Side

B

Right Return /Bottom Discharge

ASP

_J

Right Return Right View -

Air Coil Opening

Air Coil

Back

_--N---_p_

_-- Blower

_ Opening

I

M

I Air Coil Side

B

Left Return /Bottom Discharge

Front

1,1--

ASP

2' Optional Service

Access Right Rtn

(left opposite)

2' Service

Access

Isometric View

i

i I CSP

I

C

Back I

_J

Power Supply 3/4" _ 1.6

HV Knockout

1/2" Knockout --

Low Voltage 1/2"

/-- LV Knockout --

f

CSP

1.6

CAP C

zAirCoi, ? BSP ?

Condensate Condensate

3/4" FPT RightReturn 3/4" FPT Left Return

Front H (_)

Left Return Left View -

Air Coil Opening

Fig. 4 -- 50PSD Dimensional Data

Front-View

Supt _Air

Wiring

Building

Flexible Loop_,

mnection

ou -iiii

Water_i

In i i Balancing Valve

Stainless steel ii (fieldqnstalled

i i accessory)

(field-installed = Low Pressure

Drop Water

Control Valve

(optional)

(field-installed

accessory)

Ball Valve with optional

Compressor integral P/T plug

Access Panel (typical for supply and

return piping) (field-Installed

accessory)

NOTE: Ball valve with integral pressure temperature plug recommended.

Fig. 5 -- Typical Vertical Installation -- 50PSV Unit

FIELD CONVERSION OF DISCHARGE AIR -- The dis-

charge air of the 50PSH horizontal units can be converted

between side and back discharge in the field. The conversion

process is the same for fight and left return configurations. See

Fig. 7 and 8.

NOTE: It is not possible to convert return air between left or

fight return models in the field due to refrigerant piping

changes.

Water Remove Screws

Connection End

Return Air

Side Discharge

Water

Connection End

\\ J---- Rotate

Flexible Building

r::::::::i Connection Loc

Out

Valve

Pow_

Wiring

Compresso_

Access Panel Flexible

Low Pressure

•Drop Water

Control Valve

(optional)

(field-installed

accessory)

Valve with

optional integral

P/T plug (typical for

supply and return

piping)(field-installed

accessory)

NOTE: Ball valve with integral pressure temperature plug recommended.

Fig. 6 -- Typical Downflow Installation --

50PSD Unit

Step 3 -- Locate Unit--The following guidelines

should be considered when choosing a location for a WSHP:

• Units are for indoor use only.

• Locate in areas where ambient temperatures are between

39 F and 102 F and relative humidity is no greater than

75%.

• Provide sufficient space for water, electrical and duct

connections.

• Locate unit in an area that allows easy access and removal

of filter and access panels.

• Allow enough space for service personnel to perform

maintenance.

• Return air must be able to freely enter the space if unit needs

to be installed in a confined area such as a closet.

NOTE: Correct placement of the horizontal unit can play an

important part in minimizing sound problems. Since

ductwork is normally applied to these units, the unit can be

placed so that the principal sound emission is outside the oc-

cupied space in sound-critical applications. A fire damper

may be required by the local code if a fire wall is penetrated.

Move to Side

Water

Connection End

Replace Screws

Return Air

/Drain

/

Back Discharge "Discharge Air

Fig. 7 -- Conversion Left Return,

Side Discharge to Back Discharge

Water

......... Connection End

Return Air

Drain

\

Side Discharge Water

Connection End

------ /

Discharge Air Back Discharge

Fig. 8 -- Conversion Right Return,

Side Discharge to Back Discharge

Preparation -- The unit should be on the ground m a well lit

area. Hung units should be taken down to ground level before

converting.

Side to Back Discharge Conversion

1. Remove screws to free the top and discharge panels. Set

screws aside for later use. See Fig. 7.

2. Remove the access panel and set aside.

3. Lift the discharge panel from side of unit and rotate it to

back using care not to damage blower wiring.

4. Check blower wire routing and connections for undue

tension or contact with sheet metal edges. Re-route if

necessary.

5. Check refrigerant tubing for contact with other compo-

nents. Adjust if necessary.

6. Reinstall top panel using screws set aside in Step 1.

NOTE: Location for some screws at bottom of discharge

panel may have to be changed.

7. Manually spin fan wheel to check for obstructions.

Adjust for any obstruction found.

8. Replace access panel.

Back to Side Discharge Conversion -- Follow instructions

above for Side to Back Discharge Conversion, noting the

panels would be reversed.

Step 4 EMount the Unit

HORIZONTAL UNIT (50PSH) -- Horizontal units should

be mounted using the factory-installed hangers. Proper attach-

ment of hanging rods to building structure is critical for safety.

See Fig. 1. Rod attactunents must be able to support the weight

of the unit. See Table 1 for unit operating weights.

VERTICAL UNITS (50PSV, PSD) -- Vertical and downflow

units are available in left or right return air configurations. See

Fig. 3 and 4. Mount the unit (except 50PSD) on a vibration

absorption pad slightly larger than the entire base to minhnize

vibration transmission. It is not necessary to mount the unit on

the floor. See Fig. 9.

NOTE: Some codes require the use of a secondary drain pan

under vertical units. Check local codes for more information.

Return Air Louver or Grille

Fig. 9 -- 50PSV Units Mounted With

Vibration Absorption Pad

Step 5 ECheck Duct System -- Size the duct sys-

temto handle the design airflow quietly.

NOTE: Depending on the unit, the fan wheel may have a ship-

ping support installed at the factory. This must be removed

before operating unit.

SOUND ATTENUATION- To eliminate the transfer of

vibration to the duct system, a flexible connector is recom-

mended for both discharge and return air duct connections on

metal duct systems. The supply and return plenums should in-

clude internal duct liner of fiberglass or be made of duct board

construction to maximize sound attenuation of the blower.

Installing the WSHP unit to uninsulated ductwork in an uncon-

ditioned space is not recolmnended since it will sweat and

adversely affect the unit's performance.

To reduce air noise, at least one 90-degree elbow could be

included in the supply and return air ducts, provided system

performance is not adversely impacted. The blower speed can

also be changed in the field to reduce air noise or excessive air-

flow, provided system performance is not adversely impacted.

EXISTING DUCT SYSTEM- If the unit is connected to

existing ductwork, consider the following:

• Verify that the existing ducts have the proper capacity to

handle the unit airflow. If the ductwork is too small, install

larger ductwork.

• Check existing ductwork for leaks and repair as necessary.

NOTE: Local codes may require ventilation air to enter the

space for proper indoor air quality. Hard-duct ventilation

may be required for the ventilating air supply. If hard

ducted ventilation is not required, be sure that a proper air

path is provided for ventilation air to unit to meet ventila-

tion requirement of the space.

Step 6 -- Install Condensate Drain

HORIZONTAL UNIT (50PSH) -- Slope the unit toward the

drain at l/4 in. See Fig. 10. If it is not possible to meet the re-

quired pitch, install a condensate at the unit to pump conden-

sate to buildmg dram.

Pitch Toward

Drain

...._--

Drain Connection

Fig. 10 -- Horizontal Unit Pitch

Horizontal units are not internally trapped, therefore an ex-

ternal trap is necessary. Install each unit with its own individual

trap and means to flush or blow out the condensate drain line.

Do not install units with a common trap or vent. See Fig. 11 for

typical condensate connections.

NOTE: Never use a pipe size smaller than the connection.

_p of

drain line)

3/4" IPT ot__

Trap Depth _1.5" _

1.5" [38mm] [38ram] ____

3/4" PVC 1/4" per foot

Copper by others (10mm per 46cm)

drain slope

NOTE: Trap should be deep enough to offset maximum unit static

difference. A 4-in. trap is recommended.

Fig. 11 -- Trap Condensate Drain Connection

VERTICAL UNITS (50PSV,PSD) -- Each unit uses a con-

densate hose inside all cabinets as a trapping loop, therefore an

external trap is not necessary. See Fig. 12.

Each unit must be installed with its own individual vent and

means to flush or blow out the condensate drain line. Do not in-

stall units with a colmnon trap or vent.

3/4" Copper FPT/PVC 3/4" PVC

....' I........ Veot

1/2"I.] I 1/4" per foot

1

Water / "\'-..._.-------_%)'-. !/2 ;'_

Connections 't-¢"q I \" Alternate /

'/k,J/ I Condensate

| I Location

NOTE: Unit does not need to be sloped toward drain.

Fig. 12 -- Vertical Condensate Connection

VENTING- Install a vent in the condensate line of any

application that may allow dirt or air to collect in the line. Con-

sider the following:

• Always install a vent where an application requires a long

horizontal run.

• Always install a vent where large units are working against

higher external static pressure and to allow proper drainage

for multiple units connected to the same condensate main.

• Be sure to support the line where anticipated sagging from

the condensate or when "double trapping" may occur.

• If condensate pump is present on unit, be sure drain connec-

tions have a check valve to prevent back flow of condensate

into other units.

Step 7-- Pipe Connections -- Depending on the

application, there are 3 types of WSHP piping systems to

choose from: water loop, ground-water and ground loop. Refer

to Piping Section of Carrier System Design Manual for addi-

tional information.

All WSHP units use low temperature soldered female pipe

thread fittings for water connections to prevent annealing and

out-of-round leak problems which are typically associated with

high temperature brazed connections. Refer to Table 1 for

connection sizes. When making piping connections, consider

the following:

• Use a backup wrench when making screw connections to

unit to prevent internal damage to piping.

• Insulation may be required on piping to avoid condensation

in the case where fluid in loop piping operates at tempera-

rares below dew point of adjacent air.

• Piping systems that contain steel pipes or fittings may be

subject to galvanic corrosion. Dielectric fittings may be

used to isolate the steel parts of the system to avoid galvanic

corrosion.

WATER LOOP APPLICATIONS -- Water loop applications

usually include a number of units plumbed to a colrnnon pip-

ing system. Maintenance to any of these units can introduce air

into the piping system. Therefore, air elimination equipment

comprises a maior portion of the mechanical room plumbing.

The flow rate is usually set between 2.25 and 3.5 gpm per

ton of cooling capacity. For proper maintenance and servicing,

pressure-temperature (P/T) ports are necessary for temperature

and flow verification.

Cooling tower/boiler systems typically utilize a colmnon

loop maintained at 60 to 95 F. The use of a closed circuit evap-

orative cooling tower with a secondary heat exchange between

the tower and the water loop is recolmnended. If an open type

cooling tower is used continuously, chemical treatment and fil-

tering will be necessary.

In addition to complying with any applicable codes, consid-

er the following for system piping:

• Piping systems using water temperatures below 50 F

require m/2-in,closed cell insulation on all piping surfaces to

eliminate condensation.

• Avoid all plastic to metal threaded fittings due to the poten-

tial to leak. Use a flange fitted substitute.

• Teflon tape thread sealant is recolmnended to minimize

internal fouling of the heat exchanger.

• Use backup wrench. Do not overtighten connections.

• Route piping to avoid service access areas to unit.

• Flush the piping system prior to operation to remove dirt

and foreign materials from the system.

GROUND-WATER APPLICATIONS -- Typical ground-

water piping is shown in Fig. 13. In addition to complying

with any applicable codes, consider the following for sys-

tem piping:

• Install shut-off valves for servicing.

• Install pressure-temperature plugs to measure flow and

temperature.

• Connect boiler drains and other valves using a "T" connec-

tor to allow acid flushing for the heat exchanger.

• Do not overtighten connections.

• Route piping to avoid service access areas to unit.

• Use PVC SCH80 or copper piping material.

NOTE: PVC SCH40 should not be used due to system high

pressure and temperature extremes.

Water Supply and Quantity -- Check water supply. Water

supply should be plentiful and of good quality. See Table 2 for

water quality guidelines.

IMPORTANT: Failure to comply with the above required

water quality and quantity limitations and the closed-

system application design requirements may cause damage

to the robe-in-robe heat exchanger. This damage is not the

responsibility of the manufacturer.

10

Table 2 -- Water Quality Guidelines

CONDITION IHX ICLOSED I

MATERIAL* RECIRCULATING? OPEN LOOP AND RECIRCULATING WELL**

Scaling Potential -- Primary Measurement

Above the given limits, scaling is likely to occur. Scaling indexes should be calculated using the limits below.

0,,Oa,o,omI I I

Hardness Method All N/A pH <7.5 and Ca Hardness, <100 ppm

Index Limits for Probable Scaling Situations (Operation outside these limits is not recommended.)

Scaling indexes should be calculated at 150 F for direct use and HWG applications, and at 90 F for indirect HX use. A monitoring plan should be

implemented.

6.0 - 7.5

Ryznar Stability Index All N/A If >7.5 minimize steel pipe use.

Langelier Saturation Index -0.5 to +0.5

All N/A If <-0.5 minimize steel pipe use.

Based upon 150 F HWG and direct well, 85 F indirect well HX.

Iron Fouling

Iron Fe 2+ (Ferrous) <0.2 ppm (Ferrous)

(Bacterial Iron Potential) All N/A If Fe 2+ (ferrous) >0.2 ppm with pH 6 - 8, 02<5 ppm check for iron bacteria.

Iron Fouling All N/A <0.5 ppm of Oxygen

Above this level deposition will occur.

Corrosion Preventiontt

6 - 8.5 6 - 8.5

pH All Monitor/treat as needed. Minimize steel pipe below 7 and no open tanks with pH <8.

Hydrogen Sulfide (H2S) <0.5 ppm

All N/A At H2S>0.2 ppm, avoid use of copper and cupronickel piping of HXs.

Rotten egg smell appears at 0.5 ppm level.

Copper alloy (bronze or brass) cast components are okay to <0.5 ppm.

Ammonia Ion as Hydroxide, <0.5 ppm

Chloride, Nitrate and Sulfate All N/A

Compounds

Maximum Chloride Levels

Copper

Cupronickel

304 SS

316 SS

Titanium

N/A

N/A

N/A

N/A

N/A

Maximum allowable at maximum water temperature.

50 F (10 C) 75 F (24 C) 100 F (38 C)

<20 ppm NR NR

<150 ppm NR NR

<400 ppm <250 ppm <150 ppm

<1000 ppm <550 ppm <375 ppm

>1000 ppm >550 ppm >375 ppm

Erosion and Clogging

Particulate Size and Erosion <10 ppm of particles and a <10 ppm (<1 ppm "sandfree" for reinjection) of particles and a maximum

All maximum velocity of 6 fps. velocity of 6 fps. Filtered for maximum 800 micron size. Any particulate that

Filtered for maximum

800 micron size. is not removed can potentially clog components.

Brackish Use cupronickel heat exchanger when concentrations of calcium or sodium

All N/A chloride are greater than 125 ppm are present. (Seawater is approximately

25,000 ppm.)

LEGEND

HWG -- Hot Water Generator

HX -- Heat Exchanger

N/A -- Design Limits Not Applicable Considering Recirculating

Potable Water

NR -- Application Not Recommended

SS -- Stainless Steel

*Heat exchanger materials considered are copper, cupronickel, 304 SS

(stainless steel), 316 SS, titanium.

tCIosed recirculating system is identified by a closed pressurized piping

system.

**Recirculating open wells should observe the open recirculating design

considerations.

ttlf the concentration of these corrosives exceeds the maximum allow-

able level, then the potential for serious corrosion problems exists.

Sulfides in the water quickly oxidize when exposed to air, requiring that

no agitation occur as the sample is taken. Unless tested immediately

at the site, the sample will require stabilization with a few drops of one

Molar zinc acetate solution, allowing accurate sulfide determination up

to 24 hours after sampling. A low pH and high alkalinity cause system

problems, even when both values are within ranges shown. The term

pH refers to the acidity, basicity, or neutrality of the water supply.

Below 7.0, the water is considered to be acidic. Above 7.0, water is

considered to be basic. Neutral water contains a pH of 7.0.

To convert ppm to grains per gallon, divide by 17. Hardness in mg/I is

equivalent to ppm.

1!

In all applications, the quality of the water circulated

through the heat exchanger must fall within the ranges listed in

the Water Quality Guidelines table. Consult a local water firm,

independent testing facility, or local water authority for specific

recolmnendations to maintain water quality within the pub-

lished limits.

GROUND-LOOP APPLICATIONS -- Temperatures be-

tween 25 and 110 F and a cooling capacity of 2.25 to 3 gpm of

flow per ton is recommended. In addition to complying with

any applicable codes, consider the following for system piping:

• Limit piping materials to only polyethylene fusion in the

buried sections of the loop.

• Do not use galvanized or steel fittings at any time due to

corrosion.

• Avoid all plastic to metal threaded fittings due to the poten-

tial to leak. Use a flange fitted substitute.

• Do not overtighten connections.

• Route piping to avoid service access areas to unit.

• Use pressure-temperature (P/T) plugs to measure flow of

pressure drop.

INSTALLATION OF SUPPLY AND RETURN HOSE

KIT -- Follow these piping guidelines.

1. Install a dram valve at the base of each supply and return

riser to facilitate system flushing.

2. Install shutoff/balancing valves and unions at each unit to

permit unit removal for servicing.

3. Place strainers at the inlet of each system circulating

pump.

4. Select the proper hose length to allow slack between con-

nection points. Hoses may vary m length by +2% to -4%

under pressure.

5. Refer to Table 3. Do not exceed the minimum bend radius

for the hose selected. Exceeding the minimum bend radi-

us may cause the hose to collapse, which reduces water

flow rate. Install an angle adapter to avoid sharp bends

in the hose when the radius falls below the required

lllinilllUlI1.

NOTE: Piping must comply with all applicable codes.

Table 3 -- Metal Hose Minimum Bend Radii

HOSE DIAMETER (in.) MINIMUM BEND RADII (in.)

1/2 21/2

3/4 4

1 51/2

Insulation is not required on loop water piping except where

the piping runs through unheated areas or outside the building

or when the loop water temperature is below the mimmum ex-

pected dew point of the pipe ambient. Insulation is required if

loop water temperature drops below the dew point.

IMPORTANT: Do not bend or kink supply lines or hoses. ]

I

Pipe joint compound is not necessary when Teflon threaded

tape is pre-applied to hose assemblies or when flared-end

connections are used. If pipe joint compound is preferred, use

compound only in small amounts on the male pipe threads of

the fitting adapters. Prevent sealant from reaching the flared

surfaces of the joint.

NOTE: When anti-freeze is used m the loop, assure that it is

compatible with Teflon tape or pipe joint compound employed.

Maximum allowable torque for brass fittings is 30 ft-Ib. Ifa

torque wrench is not available, tighten finger-tight plus one

quarter turn. Tighten steel fittings as necessary.

Water Flow

Control Regulator

Valve (field-installed Pressure I

(field-installed accessory) Tank I

_ accessory) 1 /

0 \ \ WaterOut

_ ; .---_:__ /...... .,,Jh_Water In

.._- _ _ Shut-Off

_ IJ_P___ve (field-installedaccessory)

_ _ _ Stra;_ield-installed accessory)

/(16 to 20 meshrecommendedfor

Boiler filter sediment)

Drains

(field-installed)

Fig. 13 -- Typical Ground-Water Piping Installation

12

Optional pressure-rated hose assemblies designed specifi-

cally for use with Carrier units are available. Similar hoses can

be obtained from alternate suppliers. Supply and return hoses

are fitted with swivel-ioint fittings at one end to prevent kink-

ing during installation.

Backup wrench is required when tightening water connec-

tions to prevent water line damage. Failure to use a backup

wrench could result in equipment damage.

Refer to Fig. 14 for an illustration of a supply/return hose

kit. Male adapters secure hose assemblies to the unit and risers.

Install hose assemblies properly and check them regularly to

avoid system failure and reduced service life.

Step 8 EWire Field Power Supply

To avoid possible injury or death due to electrical shock,

open the power supply disconnect switch and secure it in

an open position during installation.

Use only copper conductors for field-installed electrical

wiring. Unit terminals are not designed to accept other

types of conductors. Failure to use copper conductors could

result in equipment damage.

All field-installed wiring, including the electrical ground,

MUST comply with the National Electrical Code (NEC) as

well as applicable local codes. In addition, all field wiring must

conform to the Class II temperature limitations described in the

NEC.

Refer to unit wiring diagrams Fig. 15-25 for a schematic of

the field connections, which must be made by the installing (or

electrical) contractor. Refer to Tables 4-6 for fuse sizes.

Consult the unit wiring diagram located on the inside of the

compressor access panel to ensure proper electrical hookup.

The installing (or electrical) contractor must make the field

connections when using field-supplied disconnect.

Operating voltage must be the same voltage and phase as

shown in electrical data shown in Tables 4-6.

Make all final electrical connections with a length of flexi-

ble conduit to minimize vibration and sound transmission to

the building.

POWER CONNECTION -- Make line voltage connection

by connecting the incoming line voltage wires to the line

side of the compressor contactor terminal as shown in

Fig. 26. See Tables 4-6 for amperage ratings to provide cor-

rect wire and maximum overcurrent protection sizing.

Rib Crimped.

SUPPLY VOLTAGE- Operating voltage to unit must be

within voltage range indicated on unit nameplate.

On 3-phase units, voltages under load between phases must

be balanced within 2%. Use the following formula to deter-

mine the percentage voltage hnbalance:

% Voltage hnbalance

= 100 x max voltage deviation from average voltage

average voltage

Example: Supply voltage is 460-3-60.

A B C AN = 452 volts

BC = 464 volts

AC = 455 volts

Average Voltage - 452 + 464 + 455

3

1371

3

= 457

Determine maximum deviation from average voltage:

(AB) 457 - 452 = 5 v

(BC) 464 - 457 = 7 v

(AC) 457 - 455 = 2 v

Maximum deviation is 7 v.

Determine percent voltage hnbalance.

7

% Voltage hnbalance = 100 x 457

= 1.53%

This amount of phase imbalance is satisfactory as it is

below the maxflnum allowable 2%.

Operation on hnproper line voltage or excessive phase

imbalance constitutes abuse and may cause damage to electri-

cal components.

NOTE: If more than 2% voltage hnbalance is present, contact

your local electric utility.

208-VOLT OPERATION- All 208-230 volt units are factory

wired for 208 volts. The transformers may be switched to

230-volt operation by switching the red (208 volt) wire with

the orange (230 volt) wire at the L1 terminal.

460-VOLT OPERATION-- Units using 460-v and an

ECM (electronically colmnutated motor) fan motor, modulat-

ing HWtL and/or internal secondary pump will require a

neutral wire from the supply side in order to feed accessory

with 265-v.

Swivel

Brass Brass

,_iitting '_ Fitting

Length

(2 ft Length Standard)

Fig. 14- Supply/Return Hose Kit

\

MPT

13

SEE NO_Eb

TY_mAL

T_TAT

Y_

Y_--

oO-- ;

G(_--

R_)---

C_--

×l(_-,

SEE NOTE 6

FOR DRY

ALARM CONTACT

I SEE

SEE

NOTE 6

CONTROL BOX LAYOUT

SEE NOTE D _ NO

EXTERNAL T"[_ _ROU:

HW G ..... I E

PUMP ASTAT L--. _0T WAT R

, DTS 8LK _ii GENERATOR*

RED POWER SUPPLY

r i_l CONDUCIORS ONLY

.--I SEE NOTE 2 AND 8

SEE NOTE 9

iYEL OR WRT DRN

,I

DR "_ __, G!Y

! IFCTRY SETTING MED)

REFER TO DATA PLATE

POWER SUPPLY

USE COPPER

CONDUCTORS ONLY.

•.--_ ........

LEGEND

AL -- Alarm Relay Contacts

ASTAT -- Aquastat

BR -- Blower Relay

CB -- Circuit Breaker

CO -- Compressor Contactor

CO -- Condensate Overflow Sensor

COMPR -- Compressor

DTS -- Discharge Temp Switch

FP1 -- Water Coil Freeze Protection Sensor

FP2 -- Air Coil Freeze Protection Sensor

HP -- High-Pressure Switch

HWG -- Hot Water Generator

JW -- Jumper Wire

LOC -- Loss of Charge Pressure Switch

MV -- Motorized Valve

NEC -- National Electrical Code

PSC -- Permanent Split Capacitor

P1 -- Field Wiring Terminal Block

RVS -- Reversing Valve Solenoid

TRANS --

UPS

42>

@

*Optional.

NOTES:

1. Compressor and blower motor thermally protected internally.

2. All wiring to the unit must comply with NEC and local codes.

3. 208/230 v transformer will be connected for 208 v operation. For

230 v operation, disconnect RED lead at L1 and attach ORANGE

lead to L1. Insulate open end of RED lead. Transformer is energy

limiting or may have circuit breaker.

4. FP1 thermistor provides freeze protection for water. When using

antifreeze solutions, cut JW3 jumper.

5. Check installation wiring information for specific thermostat hookup.

Refer to thermostat installation instructions for wiring to the unit.

Thermostat wiring must be "Class 1" and voltage rating equal to or

greater than unit supply voltage.

6. 24-v alarm signal shown. For dry alarm contact, cut JWl jumper

and dry contact will be available between ALl and AL2.

7. Transformer secondary ground via Complete C board standoffs and

screws to control box. (Ground available from top two standoffs as

shown.)

8. Aquastat is supplied with unit and must be wired in series with the

hot leg to the pump. Aquastat is rated for voltage up to 277 v.

9. Fan motors factory wired for medium speed. For high and low speed

remove BLU wire from fan motor speed tap 'M' and connect to 'H'

for high or IZ for low.

Transformer

Unit Performance Sentinel

Factory Low Voltage Wiring

Factory Line Voltage Wiring

Field Low Voltage Wiring

Field Line Voltage Wiring

Printed Circuit Trace

Optional Wiring

Relay/Contactor Coil

Thermistor

Condensate Pan

Circuit Breaker

Solenoid Coil

Relay Contacts - N.C.

O_ I,,,O Relay Contacts - N.O.

O_ _O Capacitor

Temperature Switch

O'_ Low Pressure Switch

O'_ High Pressure Switch

Wire Nut

I_ Splice Cap

_(_ LED

COMPLETE C CONTROLLER FAULT CODES

DESCRIPTION OF OPERATION LED ALARM RELAY

Normal Mode ON Open

Cycle (Closed 5 Sec.

Normal Mode with UPS Warning ON Open 25 Sec.)

Complete C is Non-Functional OFF Open

Fault Retry Slow Flash Open

Lockout Fast Flash Closed

Over/Under Voltage Shutdown Slow Flash Open

(Closed After 15 Min.)

Test Mode-No Fault in Memory Flashing Code 1 Cycling Code 1

Test Mode-HP Fault in Memory Flashing Code 2 Cycling Code 2

Test Mode-LP Fault in Memory Flashing Code 3 Cycling Code 3

Test Mode-FP1 Fault in Memory Flashing Code 4 Cycling Code 4

Test Mode-FP2 Fault in Memory Flashing Code 5 Cycling Code 5

Test Mode-CO Fault in Memory Flashing Code 6 Cycling Code 6

Test Mode-Over/Under Shutdown Flashing Code 7 Cycling Code 7

in Memory

Test Mode-UPS in Memory Flashing Code 8 Cycling Code 8

Swapped FP1/FP2 Lockout Flashing Code 9 Cycling Code 9

Fig. 15 -- Units with Complete C Controller, Single-Phase

14

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za wc R_D

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AL.g.... _7

SEE_OTE 6 _o_

DRYC_NT_CTOR ALARM

AL -- Alarm Relay Contacts

ASTAT -- Aquastat

BM -- Blower Motor

BMC -- Blower Motor Capacitor

BR -- Blower Relay

CB -- Circuit Breaker

CC -- Compressor Contactor

CO -- Condensate Overflow Sensor

COMPR -- Compressor

DTS -- Discharge Temp Switch

FP1 -- Water Coil Freeze Protection Sensor

FP2 -- Air Coil Freeze Protection Sensor

HP -- High-Pressure Switch

HWG -- Hot Water Generator

JW -- Jumper Wire

LOC -- Loss of Charge Pressure Switch

MV -- Motorized Valve

NEC -- National Electric Code

*Optional.

NOTES:

1. Compressor and blower motor thermally protected internally.

2. All wiring to the unit must comply with NEC and local codes.

3. Transformer is wired to 460 v (BLK/RED) lead for 460/60/3 units,

575 v (GRY) lead for 575/60/3. Transformer is energy limiting or may

have circuit breaker.

4. FP1 thermistor provides freeze protection for water. When using anti-

freeze solutions, cut JW3 jumper.

5. Check installation wiring information for specific thermostat hookup.

Refer to thermostat installation instructions for wiring to the unit.

Thermostat wiring must be "Class 1" and voltage rating equal to or

greater than unit supply voltage.

6. 24-v alarm signal shown. For dry alarm contact, cut JW4 jumper and

dry contact will be available between ALl and AL2.

7. Transformer secondary ground via Deluxe D board standoffs and

screws to control box. (Ground available from top two standoffs as

shown.)

8. Aquastat is supplied with unit and must be wired in series with the

hot leg to the pump. Aquastat is rated for voltage up to 277 v.

9. Blower motor is factory wired for high and low speeds. No other com-

bination is available.

10. The 460-v units using an ECM (electronically commutated motor) fan

motor, modulating HWR, and/or an internal secondary pump will

require a neutral wire from the supply side in order to feed the acces-

sory with 265-v.

TABLE 1 WIRE NUMBER

Blower

SDeeds 12 3 4 5

!

Factory BM(H) to BM(R) to BM(M) to BR2(6) to

HI + MED BR2(6) BR2(3) BR2(7) Not Used BR2(4)

BM(H) to BM(R) to BM(L) to BR2(6) to

HI + LOW BR2(6) BR2(3) Not Used BR2(7) BR2(4)

BM(H) to BM(R) to BM(M) to BM(L) to BR2(2) to

MED + LOW BR2(3) BR2(3) aN2(6) BR2(7) aN2(4)

CONTROL BOX LAYOUT

LEGEND

P1 -- Field Wiring Terminal Block

RVS -- Reversing Valve Solenoid

TRANS -- Transformer

Factory Low Voltage Wiring

Factory Line Voltage Wiring

Field Low Voltage Wiring

Field Line Voltage Wiring

._ Printed Circuit Trace

Optional Wiring

oO o Relay/Contactor Coil

Thermistor

Condensate Pan

o.=r%.o Circuit Breaker

__L_ Ground

OJ_ Solenoid Coil

Relay Contacts - N.C.

O_ _ Relay Contacts - N.O.

O_ _-O Capacitor

Temperature Switch

O'_ Low Pressure Switch

O_ High Pressure Switch

I_ Wire Nut

E_ Splice Cap

_O_ LED

OPERATION

Normal Mode

Deluxe D is Non-Functional

Test Mode

Night Setback

Emergency Shut Down

Invalid Thermostat Inputs

No Fault in Memory

HP Fault/(Leckeut) Note 1

LP Fault/(Leckout) Note 1

FP1 Fault/(Leckeut) Note 1

FP2 Fault/(Lockeut) Note 1

CC Fault/(Leckout) Note 1

Over-Under Voltage

Normal Mode with UPS

Swapped FP1/FP2 Lockout

NOTES:

DELUXE D CONTROLLER FAULT CODES

STATUS LED TEST LED FAULT LED

(GREEN) (YELLOW) (RED)

ON OFF Note 2

OFF OFF OFF

-- ON Note 2

Flashing Code 2 -- Note 2

Flashing Code 3 -- Note 2

Flashing Code 4 -- Note 2

ON OFF Flashing Code 1

Slow Flash/

(Fast Flash) OFF Flashing Code 2

Slow Flash/

(Fast Flash) OFF Flashing Code 3

Slow Flash/

(Fast Flash) OFF Flashing Code 4

Slow Flash/

(Fast Flash) OFF Flashing Code 5

Slow Flash/

(Fast Flash) OFF Flashing Code 6

Slow Flash OFF Flashing Code 7

ON OFF Flashing Code 8

Fast Flash OFF Flashing Code 9

ALARM

RELAY

Open

Open

Cycle (Note 3)

Open

Open/(Closed)

Open/(Closed)

Open/(Closed)

Open/(Closed)

Open/(Closed)

Open (Note 4)

Cycle (Note 5)

Closed

1. Status LED (GREEN) Slow Flash - Controller In - Fault Retry Mode. Fast Flash - Controller in Lock-

out Mode. Slow Flash = 1 Flash per every 2 seconds. Fast Flash = 2 Flashes per every 1 second.

2. Fault LED (RED) flashes a code representing last fault in memory, If no fault in memory code 1 is

flashed.

3. Cycles appropriate code, by cycling alarm relay in the same sequence as fault LED.

4. Alarm relay closes after 15 minutes.

5. Alarm relay cycles. Closed for 5 seconds and open for 25 seconds.

Fig. 16 -- Units with Deluxe D Controller, Three-Phase (460/575 V)

15

I

ICONTROL BOX LAYOUT

AL -- Alarm Relay Contacts

ASTAT -- Aquastat

BM -- Blower Motor

BR -- Blower Relay

CB -- Circuit Breaker

CO -- Compressor Contactor

CO -- Condensate Overflow Sensor

COMPR -- Compressor

DTS -- Discharge Temp Switch

ECM -- Electronically Commutated Motor

FP1 -- Water Coil Freeze Protection Sensor

FP2 -- Air Coil Freeze Protection Sensor

HP -- High-Pressure Switch

HWG -- Hot Water Generator

JW -- Jumper Wire

LOC -- Loss of Charge Pressure Switch

LWT -- Leaving Water Temperature

MV -- Motorized Valve

NEC -- National Electric Code

P1 -- Field Wiring Terminal Block

*Optional.

LEGEND

RVS -- Reversing Valve Solenoid

TRANS -- Transformer

UPS -- Unit Performance Sentinel

Factory Low Voltage Wiring

Factory Line Voltage Wiring

Field Low Voltage Wiring

Field Line Voltage Wiring

• _ Printed Circuit Trace

Optional Wiring

o(_ Relay/Contactor Coil

Thermistor

_ Condensate Pan

O.=,'_=O Circuit Breaker

__L_ Ground

OJ_ Solenoid Coil

Relay Contacts - N.C.

0"=4_ Relay Contacts - N.O.

O_ _O Capacitor

Temperature Switch

Low Pressure Switch

O'_ High Pressure Switch

I_ Wire Nut

E_ Splice Cap

_(_ LED

NOTES:

1. Compressor and blower motor thermally protected internally.

2. All wiring to the unit must comply with NEC and local codes.

3. 208/230 v transformer will be connected for 208 v operation. For

230 v operation, disconnect RED lead at L1 and attach ORANGE

lead to L1. Insulate open end of RED lead. Transformer is energy

limiting or may have circuit breaker.

4. FP1 thermistor provides freeze protection for water. When using

antifreeze solutions, cut JW3 jumper.

5. Check installation wiring information for specific thermostat hookup.

Refer to thermostat installation instructions for wiring to the unit.

Thermostat wiring must be "Class 1" and voltage rating equal to or

greater than unit supply voltage.

6. 24-v alarm signal shown. For dry alarm contact, cut JW1 jumper

and dry contact will be available between ALl and AL2.

7. Transformer secondary ground via Complete C board standoffs and

screws to control box. (Ground available from top two standoffs as

shown.)

8. Aquastat is supplied with unit and must be wired in series with the

hot leg to the pump. Aquastat is rated for voltage up to 277 v.

COMPLETE C CONTROLLER FAULT CODES

DESCRIPTION OF OPERATION LED ALARM RELAY

Normal Mode ON Open

Cycle (Closed 5 Sec.

Normal Mode with UPS Warning ON Open 25 Sec.)

Complete C is Non-Functional OFF Open

Fault Retry Slow Flash Open

Lockout Fast Flash Closed

Open

Over/Under Voltage Shutdown Slow Flash (Closed After 15 Min.)

Test Mode-No Fault in Memory Flashing Code 1 Cycling Code 1

Test Mode-HP Fault in Memory Flashing Code 2 Cycling Code 2

Test Mode-LP Fault in Memory Flashing Code 3 Cycling Code 3

Test Mode-FP1 Fault in Memory Flashing Code 4 Cycling Code 4

Test Mode-FP2 Fault in Memory Flashing Code 5 Cycling Code 5

Test Mode-CO Fault in Memory Flashing Code 6 Cycling Code 6

Test Mode-Over/Under Shutdown

in Memory Flashing Code 7 Cycling Code 7

Test Mode-UPS in Memory Flashing Code 8 Cycling Code 8

Swapped FP1/FP2 Lockout Flashing Code 9 Cycling Code 9

Fig. 17 -- Units with Complete C ECM Blower, Three-Phase (208/230 V)

ld

LQi ii' o

H

LO_WOR_S rROTOCOk

l

LEGEND

TO eROU._

J

AL -- Alarm Relay Contacts

ASTAT -- Aquastat

BM -- Blower Motor

BMC -- Blower Motor Capacitor

BR -- Blower Relay

CB -- Circuit Breaker

CC -- Compressor Contactor

CO -- Sensor, Condensate Overflow

DTS -- Discharge Temperature Switch

ECM -- Electronically Commutated Motor

FP1 -- Sensor, Water Coil Freeze Protection

FP2 -- Sensor, Air Coil Freeze Protection

HP -- High-Pressure Switch

HPWS -- High-Pressure Water Switch

HWG -- Hot Water Generator o..tV,o

JWl -- Clippable Field Selection Jumper

LOC -- Loss of Charge Pressure Switch

LON -- Local Operating Network

MV -- Motorized Valve

MVES -- Motorized Valve End Switch _L

*Optional Wiring.

NEC -- National Electrical Code

P1 -- Field Wiring Terminal Block

RVS -- Reversing Valve Solenoid

TRANS -- Transformer

Field Line Voltage Wiring

Field Low Voltage Wiring

Printed Circuit Trace

Optional Wiring

Relay/Contactor Coil

Condensate Pan

Solenoid Coil

Temperatu re Switch

Thermistor

Ground

I_ Wire Nut

Relay Contacts - N.C.

o_ _ Relay Contacts- N.O.

Low Pressure Switch

High Pressure Switch

E:_ Splice Cap

o.--"_.-o Circuit Breaker

NOTES:

1. Compressor and blower motor thermally protected internally.

2. All wiring to the unit must comply with NEC and local codes.

3. Transformer is wired to 460 v (BLK/RED) lead for 460/3/60

units. Transformer is energy limiting or may have circuit

breaker.

4. FP1 thermistor provides freeze protection for water. When

using antifreeze solutions, cut JW3 jumper.

5. Typical thermostat wiring shown. Refer to thermostat installa-

tion instructions for wiring to the unit. Thermostat wiring must

be Class 1 and voltage rating equal to or greater than unit sup-

ply voltage.

6. Factory cut JWl jumper. Dry contact will be available between

ALl and AL2.

7. Transformer secondary ground via Complete C board standoffs

and screws to control box. (Ground available from top two

standoffs as shown.)

8. Aquastat is supplied with unit and must be wired in series with

the hot leg to the pump. Aquastat is rated for voltages up to

277-v.

9. Optional LON wires. Only connect if LON connection is desired

at the wall sensor.

10. Fan motors are factory wired for medium speed. For high or low

speed, remove BLU wire from fan motor speed tap "M" and

connect to "H" for high speed or '1" for low speed.

11. For low speed, remove BLK wire from BR "6" and replace with

RED. Connect BLK and BRN wires together.

12. For blower motors with leads. For medium or low speed,

disconnect BLK wire from BR "6". Connect BLK and ORG/PUR

wire together. Connect RED for low or BLU for medium to

BR "6".

13. The 460-v units using an ECM (electronically commutated

motor) fan motor, modulating HWR (hot water reheat), and/or

an internal secondary pump will require a neutral wire from the

supply side in order to feed the accessory with 265-v.

Fig 18 -- Units with ECM, Complete C and LON Controller (460 V)

17

LEGEND

AL -- Alarm Relay Contacts

ASTAT -- Aquastat

BM -- Blower Motor

BMC -- Blower Motor Capacitor

BR -- Blower Relay

CB -- Circuit Breaker

CC -- Compressor Contactor -- •--

CO -- Sensor, Condensate Overflow

DTS -- Discharge Temperature Switch

ECM -- Electronically Commutated Motor

FP1 -- Sensor, Water Coil Freeze Protection

FP2 -- Sensor, Air Coil Freeze Protection I___1

HP -- High-Pressure Switch Lz.zJ

HPWS -- High-Pressure Water Switch o..zV,o

HWG -- Hot Water Generator

JWl -- Clippable Field Selection Jumper

LOC -- Loss of Charge Pressure Switch _,_,=

LON -- Local Operating Network

MV -- Motorized Valve _L

NEC -- National Electrical Code ---

*Optional Wiring.

P1 -- Field Wiring Terminal Block

RVS -- Reversing Valve Solenoid

TRANS -- Transformer

Field Line Voltage Wiring

Field Low Voltage Wiring

Printed Circuit Trace

Optional Wiring

Relay/Contactor Coil

Condensate Pan

Solenoid Coil

Temperature Switch

Thermistor

Ground

I_ Wire Nut

Relay Contacts - N.C.

o_ _:_ Relay Contacts - N.O.

Low Pressure Switch

High Pressure Switch

Splice Cap

o-'%-o Circuit Breaker

NOTES:

1. Compressor and blower motor thermally protected internally.

2. All wiring to the unit must comply with NEC and local codes.

3. Transformer is wired to 460 v (BLK/RED) lead for 460/3/60

units. Transformer is energy limiting or may have circuit

breaker.

4. FP1 thermistor provides freeze protection for water. When

using antifreeze solutions, cut JW3 jumper.

5. Typical thermostat wiring shown. Refer to thermostat installa-

tion instructions for wiring to the unit. Thermostat wiring must

be Class 1 and voltage rating equal to or greater than unit sup-

ply voltage.

6. Factory cut JWl jumper. Dry contact will be available between

ALl and AL2.

7. Transformer secondary ground via Deluxe D board standoffs

and screws to control box. (Ground available from top two

standoffs as shown.)

8. Aquastat is supplied with unit and must be wired in series with

the hot leg to the pump. Aquastat is rated for voltages up to

277-v.

9. Blower motor is factory wired for medium and high speeds. For

any other combination of speeds, at the motor attach the BLK

wire to the higher of the two desired speed taps and the BLU

wire to the lower of the two desired speed taps.

10. Optional LON wires. Only connect if LON connection is desired

at the wall sensor.

11. Blower motor is factory wired for high and low speeds. No other

combination is available.

12. The 460-v units using an ECM (electronically commutated

motor) fan motor, modulating HWR (hot water reheat), and/or

an internal secondary pump will require a neutral wire from the

supply side in order to feed the accessory with 265-v.

Fig 19 -- Units with ECM, Deluxe D and LON Controller (460 V)

18

......1/ L

-iii

LEGEND

¢:

.q,I

14:,

i_;_:_%_7a_ i ...........o_o0o,po0

AL -- Alarm Relay Contacts RVS -- Reversing Valve Solenoid

ASTAT -- Aquastat SAT -- Saturated Air Temperature

BM -- Blower Motor TRANS -- Transformer

BR -- Blower Relay UPS -- Unit Performance Sentinel

CB -- Circuit Breaker Field Line Voltage Wiring

CO -- Compressor Contactor _, Field Low Voltage Wiring

CO -- Sensor, Condensate Overflow

OR -- Cooling Relay Field Line Voltage Wiring

DTS -- Discharge Temp Switch Field Low Voltage Wiring

ECM -- Electronically Commuted Motor

FP1 -- Sensor, Water Coil Freeze Protection Printed Circuit Trace

FP2 -- Sensor, Air Coil Freeze Protection .... Optional Wiring

HP -- High Pressure Switch

HPWS -- High Pressure Water Switch _ Relay/Contactor Coil

HWG -- Hot Water Generator

JW -- Jumper Wire I---I Condensate Pan

LOC -- Loss of Charge Pressure Switch L=7=7.J

LWT -- Leaving Water Temperature _ Solenoid Coil

MV -- Motorized Valve

MVES -- Motorized Valve End Switch _ Temperature Switch

P1 -- Field Wiring Terminal Block

*Optional Wiring.

NOTES:

1. Compressor and blower motor thermally protected internally.

2. All wiring to the unit must comply with NEC and local codes.

3. 208-240 60 Hz units are wired for 208v operation. Transformer is energy

limiting or may have circuit breaker.

4. FP1 thermistor provides low temperature protection for water. When

using antifreeze solutions, cut JW3 jumper.

5. Refer to multiple protocol controller (MPC), LON, or TSTAT Installation,

Application, and Operation Manual for control wiring to the wire from

PremierLink controller to "Y" Complete C when motorized valve is not

used. Thermostat wiring must be "Class 1" and voltage rating equal to or

greater than unit supply voltage.

6. 24v alarm signal shown. For dry contact, cut JW1 jumper and dry con-

tact will be available between ALl and AL2.

7. Transformer secondary ground via green wire with yellow stripe from "C"

terminal to control box.

8. Aquastat is supplied with unit and must be wired in series with the hot

leg to the pump. Aquastat is rated for voltages up to 277v.

O_ Thermistor

i Ground

[_ Wire Nut

Relay Contacts - N.C.

O._ _O Relay Contacts - N.O.

Low Pressure Switch

°_ High Pressure Switch

E_ Splice Cap

O_"%'O Circuit Breaker

O_ (-,O Capacitor

_(_)_ LED

COMPLETE C CONTROLLER FAULT CODES

DESCRIPTION OF OPERATION LED ALARM RELAY

Normal Mode ON Open

Cycle (Closed 5 Sec.

Normal Mode with UPS Warning ON Open 25 Sec.)

Complete C is Non-Functional OFF Open

Fault Retry Slow Flash Open

Lockout Fast Flash Closed

Over/Under Voltage Shutdown Slow Flash Open (Closed After 15 Min.)

Test Mode-No Fault in Memory Flashing Code 1 Cycling Code 1

Test Mode-HP Fault in Memory Flashing Code 2 Cycling Code 2

Test Mode-LP Fault in Memory Flashing Code 3 Cycling Code 3

Test Mode-FP1 Fault in Memory Flashing Code 4 Cycling Code 4

Test Mode-FP2 Fault in Memory Flashing Code 5 Cycling Code 5

Test Mode-CO Fault in Memory Flashing Code 6 Cycling Code 6

Test Mode-Over/Under Shutdown

in Memory Flashing Code 7 Cycling Code 7

Test Mode-UPS in Memory Flashing Code 8 Cycling Code 8

Swapped FP1/FP2 Lockout Flashing Code 9 Cycling Code 9

Fig. 20 -- Units with Complete C and Premierlink TM Controller, Single-Phase (208/230 V)

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SIZE

006

009

012

018

024

030

036

042

048

060

070

RATED

VOLTAGE

V-Ph-Hz

208/230-1-60

208/230-1-60

208/230-1-60

208/230-1-60

265-1-60

208/230-1-60

208/230-3-60

460-3-60

208/230-1-60

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460-3-60

208/230-1-60

265-1-60

208/230-3-60

460-3-60

208/230-1-60

208/230-3-60

460-3-60

575-3-60

208/230-1-60

208/230-3-60

460-3-60

575-3-60

208/230-1-60

208/230-3-60

460-3-60

575-3-60

208/230-1-60

208/230-3-60

460-3-60

575-3-60

Table 4-- 50PSH, PSV, PSD Electrical Data -- PSC Motor

COMPRESSOR UNITS WITH PSC MOTOR AND HWR

VOLTAGE FAN TOTAL MIN MAX

MOTOR UNIT CIRCUIT FUSE/ REHEAT TOTAL MIN MAX

MIN/MAX RLA LRA Qty FLA FLA AMP HACR PUMP UNIT CIRCUIT FUSE /

FLA FLA AMP HACR

197/254 3.1 17.7 1 0.4 3.5 4.3 15 0.43 3.9 4.7 15

197/254 3.9 21.0 1 0.4 4.3 5.3 15 0.43 4.8 5.7 15

197/254 5.0 25.0 1 0.4 5.7 7.0 15 0.43 6.1 7.4 15

197/254 9.0 48.0 1 1.0 10.0 12.3 20 0.43 10.4 12.7 20

239/292 8.4 40.0 1 0.9 9.3 11.4 15 N/A N/A N/A N/A

197/254 12.8 60.0 1 1.1 13.9 17.1 25 0.43 14.3 17.5 30

197/254 8.0 55.0 1 1.1 9.1 11.1 15 0.43 9.5 11.5 15

414/506 4.0 22.4 1 0.6 4.6 5.6 15 N/A N/A N/A N/A

197/254 13.5 61.0 1 1.4 14.9 18.3 30 0.80 15.7 19.1 30

239/292 10.9 58.0 1 1.6 12.5 15.2 25 0.70 13.2 15.9 25

197/254 8.3 63.0 1 1.4 9.7 11.8 20 0.80 10.5 12.6 20

414/506 4.5 27.0 1 0.9 5.4 6.5 15 0.70 6.1 7.2 15

197/254 14.7 72.5 1 2.1 16.8 20.5 35 0.80 17.6 21.3 35

239/292 12.5 61.0 1 2.2 14.7 17.8 30 0.70 15.4 18.5 30

197/254 10.4 63.0 1 2.1 12.5 15.1 25 0.80 13.3 15.9 25

414/506 4.5 32.0 1 1.3 5.8 6.9 15 0.70 6.5 7.6 15

197/254 15.4 83.0 1 2.1 17.5 21.4 35 0.80 18.3 22.2 35

197/254 11.5 77.0 1 2.1 13.6 16.5 25 0.80 14.4 17.3 25

414/506 5.1 35.0 1 1.0 6.1 7.4 15 0.70 6.8 8.1 15

518/633 4.3 31.0 1 0.8 5.1 6.2 15 N/A N/A N/A N/A

197/254 20.5 109.0 1 3.0 23.5 28.6 45 0.80 24.3 29.4 45

197/254 14.6 91.0 1 3.0 17.6 21.3 35 0.80 18.4 22.1 35

414/506 7.1 46.0 1 1.7 8.8 10.6 15 0.70 9.5 11.3 15

518/633 5.1 34.1 1 1.4 6.5 7.8 15 N/A N/A N/A N/A

197/254 26.9 145.0 1 4.9 31.8 38.5 60 1.07 32.9 39.6 60

197/254 17.6 123.0 1 4.9 22.5 26.9 40 1.07 23.6 28.0 45

414/506 9.6 64.0 1 2.5 12.1 14.5 20 1.07 13.2 15.6 25

518/633 6.1 40.0 1 1.9 8.0 9.5 15 N/A N/A N/A N/A

197/254 30.1 158.0 1 5.8 35.9 43.4 70 1.07 37.0 44.5 70

197/254 20.5 155.0 1 5.8 26.3 31.4 50 1.07 27.4 32.5 50

414/506 9.6 75.0 1 2.6 12.2 14.6 20 1.07 13.3 15.7 25

518/633 7.6 54.0 1 2.3 9.9 11.8 15 N/A N/A N/A N/A

LEGEND

FLA -- Full Load Amps

HACR -- Heating, Air Conditioning and Refrigeration

HWR -- Hot Water Reheat

LRA -- Locked Rotor Amps

RLA -- Rated Load Amps

NOTE: Unit sizes 006-012 are not available on 50PSD units.

Table 5-- 50PSH, PSV, PSD Electrical Data -- PSC High-Static Motor

50PS

UNIT

SIZE

018

024

030

036

042

048

060

RATED

VOLTAGE

V-Ph-Hz

208/230-1-60

265-1-60

208/230-1-60

208/230-3-60

460-3-60

208/230-1-60

265-1-60

208/230-3-60

460-3-60

208/230-1-60

265-1-60

208/230-3-60

460-3-60

208/230-1-60

208/230-3-60

460-3-60

575-3-60

208/230-1-60

208/230-3-60

460-3-60

575-3-60

208/230-1-60

208/230-3-60

460-3-60

575-3-60

UNITS WITH HIGH-STATIC PSC MOTOR

COMPRESSOR

VOLTAGE FAN TOTAL MIN MAX AND HWR

MOTOR UNIT CIRCUIT FUSE/ REHEAT TOTAL MIN MAX

MIN/MAX RLA LRA Qty FLA FLA AMP HACR PUMP UNIT CIRCUIT FUSE /

FLA FLA AMP HACR

197/254 9.0 48.0 1 1.10 7.9 12.4 20 0.80 10.9 13.2 20

239/292 8.4 40.0 1 0.90 7.1 11.4 15 0.70 10.0 12.1 20

197/254 12.8 60.0 1 1.40 14.2 17.4 30 0.80 15.0 18.2 30

197/254 8.0 55.0 1 1.40 9.4 11.4 15 0.80 10.2 12.2 20

414/506 4.0 22.4 1 0.90 4.9 5.9 15 0.70 5.6 6.6 15

197/254 13.5 61.0 1 1.80 15.3 18.7 30 0.80 16.1 19.5 30

239/292 10.9 58.0 1 2.00 12.9 15.6 25 0.70 13.6 16.3 25

197/254 8.3 63.0 1 1.80 10.1 12.2 20 0.80 10.9 13.0 20

414/506 4.5 27.0 1 1.24 5.7 6.9 15 0.70 6.4 7.6 15

197/254 14.7 72.5 1 2.00 16.7 20.4 35 0.80 17.5 21.2 35

239/292 12.5 61.0 1 1.66 14.2 17.3 25 0.70 14.9 18.0 30

197/254 10.4 63.0 1 2.00 12.4 15.0 25 0.80 13.2 15.8 25

414/506 4.5 32.0 1 1.00 5.5 6.6 15 0.70 6.2 7.3 15

197/254 15.4 83.0 1 3.00 18.4 22.3 35 0.80 19.2 23.1 35

197/254 11.5 77.0 1 3.00 14.5 17.4 25 0.80 15.3 18.2 25

414/506 5.1 35.0 1 1.70 6.8 8.1 15 0.70 7.5 8.8 15

518/633 4.3 31.0 1 1.40 5.7 6.8 15 N/A N/A N/A N/A

197/254 20.5 109.0 1 3.40 23.9 29.0 45 1.07 25.0 30.1 50

197/254 14.6 91.0 1 3.40 18.0 21.7 35 1.07 19.1 22.7 35

414/506 7.1 46.0 1 1.80 8.9 10.7 15 1.07 10.0 11.7 15

518/633 5.1 34.1 1 1.40 6.5 7.8 15 N/A N/A N/A N/A

197/254 26.9 145.0 1 5.80 32.7 39.4 60 1.07 33.8 40.5 60

197/254 17.6 123.0 1 5.80 23.4 27.8 45 1.07 24.5 28.9 45

414/506 9.6 64.0 1 2.60 12.2 14.6 20 1.07 13.3 15.7 25

518/633 6.1 40.0 1 2.30 8.4 9.9 15 N/A N/A N/A N/A

LEGEND

FLA -- Full Load Amps

HACR -- Heating, Air Conditioning and Refrigeration

HWR -- Hot Water Reheat

LRA -- Locked Rotor Amps

RLA -- Rated Load Amps

NOTE: Unit sizes 006-012 are not available with PSC high-static motors.

25

Table 6 -- 50PSH, PSV, PSD Electrical Data, ECM Motor

50PS

UNIT

SIZE

018

O24

030

036

O42

048

060

070

RATED

VOLTAGE

V-Ph-Hz

208/230-1-60

265-1-60

208/230-1-60

208/230-3-60

460-3-60

208/230-1-60

265-1-60

208/230-3-60

460-3-60

208/230-1-60

265-1-60

208/230-3-60

460-3-60

208/230-1-60

208/230-3-60

460-3-60

208/230-1-60

208/230-3-60

460-3-60

208/230-1-60

208/230-3-60

460-3-60

208/230-1-60

208/230-3-60

460-3-60

VOLTAGE

MINIMAX

COMPRESSOR FAN TOTAL MIN MAX

MOTOR UNIT CIRCUIT FUSE/

RLA LRA Qty FLA FLA AMP HACR

197/254 9.0 48.0 1 4.3 13.3 15.6 20

239/292 8.4 40.0 1 4.1 12.5 14.6 20

197/254 12.8 60.0 1 4.3 17.1 20.3 30

197/254 8.0 55.0 1 4.3 12.3 14.3 20

414/506 4.0 22.4 1 4.1 8.1 9.1 15

197/254 13.5 61.0 1 4.3 17.8 21.2 30

239/292 10.9 58.0 1 4.1 15.0 17.7 25

197/254 8.3 63.0 1 4.3 12.6 14.7 20

414/506 4.5 27.0 1 4.1 8.6 9.7 15

197/254 14.7 72.5 1 4.3 19.0 22.7 35

239/292 12.5 61.0 1 4.1 16.6 19.7 30

197/254 10.4 63.0 1 4.3 14.7 17.3 25

414/506 4.5 32.0 1 4.1 8.6 9.7 15

197/254 15.4 83.0 1 4.3 19.7 23.6 35

197/254 11.5 77.0 1 4.3 15.8 18.7 30

414/506 5.1 35.0 1 4.1 9.2 10.5 15

197/254 20.5 109.0 1 7.0 27.5 32.6 50

197/254 14.6 91.0 1 7.0 21.6 25.3 35

414/506 7.1 46.0 1 6.9 14.0 15.8 20

197/254 26.9 145.0 1 7.0 33.9 40.6 60

197/254 17.6 123.0 1 7.0 24.6 29.0 45

414/506 9.6 64.0 1 6.9 16.5 18.9 25

197/254 30.1 158.0 1 7.0 37.1 44.6 70

197/254 20.5 155.0 1 7.0 27.5 32.6 50

414/506 9.6 75.0 1 6.9 16.5 18.9 25

LEGEND

FLA -- Full Load Amps

HACR -- Heating, Air Conditioning and Refrigeration

HWR -- Hot Water Reheat

LRA -- Locked Rotor Amps

RLA -- Rated Load Amps

UNITS WITH ECM MOTOR AND HWR

REHEAT TOTAL MIN MAX

PUMP UNIT CIRCUIT FUSE /

FLA FLA AMP HACR

0.8 14.1 16.4 25

0.7 13.2 15.3 20

0.8 17.9 21.1 30

0.8 13.1 15.1 20

0.7 8.8 9.8 15

0.8 18.6 22.0 35

0.7 15.7 18.4 25

0.8 13.4 15.5 20

0.7 9.3 10.4 15

0.8 19.8 23.5 35

0.7 17.3 20.4 30

0.8 15.5 18.1 25

0.7 9.3 10.4 15

0.8 20.5 24.4 35

0.8 16.6 19.5 30

0.7 9.9 11.2 15

1.07 28.6 33.7 50

1.07 22.7 26.3 40

1.07 15.1 16.8 20

1.07 35.0 41.7 60

1.07 25.7 30.1 45

1.07 17.6 20.0 25

1.07 38.2 45.7 70

1.07 28.6 33.7 50

1.07 17.6 20.0 25

NOTES:

1. The 460-v units using an ECM (electronically commutated motor) fan

motor, modulating HWR, and/or an internal secondary pump will require

a neutral wire from the supply side in order to feed the accessory with

265-v.

2. Unit sizes 006-012 are not available with ECM motors.

COMPRESSOR CONTACTOR

\CAPACITOR COMPLETE C CONTROL

TRANSFORMER ECM CONTROL

BOARD

Fig. 26 -- 50PSH,PSV, PSD Typical Single-Phase Line Voltage Power Connection

26

Step 9 -- Wire Field Controls

THERMOSTAT CONNECTIONS -- The thermostat should

be wired directly to the ECM control board. See Fig. 27.

WATER FREEZE PROTECTION-- The Aquazone TM con-

trol allows the field selection of source fluid freeze protection

points through jumpers. The factory setting of jumper JW3

(FP1) is set for water at 30 E In earth loop applications, jumper

JW3 should be clipped to change the setting to 10 F when us-

ing antifreeze in colder earth loop applications. See Fig. 28.

NOTE: The extended range option should be selected

with water temperatures below 60 F to prevent internal

condensation.

AIR COIL FREEZE PROTECTION-- The air coil freeze

protection jumper JW2 (FP2) is factory set for 30 F and should

not need adjusting.

ACCESSORY CONNECTIONS -- Terminal A on the control

is provided to control accessory devices such as water valves,

electronic air cleaners, humidifiers, etc. This signal operates

with the compressor terminal. See Fig. 29. Refer to the specific

unit wiring schematic for details.

NOTE: The A terminal should only be used with 24-volt

signals -- not line voltage signals.

CAPACITOR

COMPRESSOR CONTACTOR

WATER SOLENOID VALVES -- An external solenoid

valve(s) should be used on ground water installations to shut

off flow to the unit when the compressor is not operating. A

slow closing valve may be required to help reduce water

halrnner. Figure 29 shows typical wiring for a 24-vac external

solenoid valve. Figures 30 and 31 illustrate typical slow closing

water control valve wiring for Taco 500 Series and Taco ESP

Series valves. Slow closing valves take approximately 60 sec.

to open (very little water will flow before 45 sec.). Once fully

open, an end switch allows the compressor to be energized

(only on valves with end switches). Only relay or triac based

electronic thermostats should be used with slow closing valves.

When wired as shown, the slow closing valve will operate

properly with the following notations:

1. The valve will remain open during a unit lockout.

2. The valve will draw approximately 25 to 35 VA through

the "Y" signal of the thermostat.

IMPORTANT: Connecting a water solenoid valve can ]

overheat the anticipators of electromechanical thermo- I

stats. Only use relay based electronic thermostats.

COMPLETE C CONTROL

TRANSFORMER

R_ 0 TBI _A_ A_LI0000000000

THERMOSTAT CONNECTION

Fig. 27 -- Low Voltage Field Wiring

CLIPJW3

FOR

FREEZE .....

PROTECT

CLIP

FOR DRY -

CONTACT

OeR BRe CCG cc [------] O

"=_ _o_

= ,o,,o[] P2

J_ IF_ F_ Low Te_ LP

Oy FP

o

CLIP JW2-FP2

I JUMPER FOR

ANTI-FREEZE

SYSTEMS

AQUAZONE CONTROL (Complete C Shown)

Fig. 28 -- Typical Aquazone TM Control Board

Jumper Locations

TERMINAL STRIP P2

TYPICAL

WATER

VALVE

Fig. 29 -- Typical Accessory Wiring

27

o _-

1 !3TAo LvE

.E° sTAT

Fig. 30 -- AMV Valve Wiring

Fig. 31 -- Taco SBV Valve Wiring

WSHP OPEN WIRING -- The WSHP Open controller will

be factory mounted to the unit control panel and wired to the

Complete C or Deluxe D control board, however, the system

wiring will need to be completed utilizing WSHP Open con-

troller wiring diagrams and the Third Party Integration (TPI)

Guide. Factory installation includes harness, LWT (leaving

water temperature), supply air, and condensate sensor.

Disconnect all power to the unit before performing mainte-

nance or service. Unit may automatically start if power is

not disconnected. Failure to follow this warning could

cause personal injury, death, and/or equipment damage.

Wiring Sensors to Inputs -- Sensors can be wired to the

WSHP Open controller's inputs. See Table 7.

All field control wiring that connects to the WSHP Open con-

troller must be routed through the raceway built into the corner

post. The raceway provides the UL required clearance between

high and low-voltage wiring.

1. Pass control wires through hole provided in corner post.

2. Feed the wires through the raceway to the WSHP Open

controller.

3.

4.

Connect the wires to the removable Phoenix connectors.

Reconnect the connectors to the board.

Field-Supplied Sensor Hardware -- The WSHP Open con-

troller is configurable with the following field-supplied sen-

sors. See Table 7.

Table 7 -- Field-Supplied Sensors for

WSHP Open Controller

SENSOR NOTES

Space Temperature Sensor Field Installed (Must be used with

(SPT) WSHP Open controller.)

Outdoor Air

Temperature Sensor Network Sensor

Indoor Air Quality Sensor Required only for demand

(Separate Sensor) control ventilation.

Space Relative Separate Sensor

Humidity Sensor

NOTE: BACview s Handheld or Virtual BACview can be used as the user

interface.

For specific details about sensors, refer to the literature sup-

plied with the sensor.

Wiring a SPT Sensor -- A WSHP Open controller is connect-

ed to a wall-mounted space temperature (SPT) sensor to moni-

tor room temperature using a Molex plug.

The WSHP Open system offers the following SPT sensors.

See Table 8.

Table 8 -- SPT Sensors

PART

SENSOR NUMBER FEATURES

SPT

Standard • Local access port

SPS • No operator control

• Slide potentiometer to adjust set point

• Manual on button to override schedule

SPT Plus SPPL • LED to show occupied status

• Local access port

• LCD display

• Manual on button to override schedule

• Warmer and cooler buttons to adjust set point

SPT Pro SPP • Info button to cycle through zone and outside

air temperatures, set points, and local override

time

• Local access port

• LCD display

• Manual on button to override schedule

• Warmer and cooler buttons to adjust set point

SPT Pro • Info button to cycle through zone and outside

Plus SPPF air temperatures, set points, and local override

time

• Local access port

• Fan speed*

*The SPT Pro Plus fan speed adjustment has no effect in this application.

Wire Sift sensors to the WSHP Open controller's Rnet port.

An Rnetbus can consist of any of the following combinations

of devices wired in a daisy-chain configuration:

• 1 SPT Plus, SPT Pro, or SPT Pro Plus sensor

• 1 to 4 SPT Standard sensors

• 1 to 4 SPT Standard sensors and 1 SPT Plus, SPT Pro, or

SPT Pro Plus sensor

• Any of the above combinations, plus up to 2 BACview 6

Handheld but no more than 6 total devices

NOTE: If the Rnetbus has multiple Sift Standard sensors, each

sensor must be given a unique address on the Rnetbus. See the

Carrier Open Sensor Installation Guide.

Use the specified type of wire and cable for lnaxhnum signal

integrity. See Table 9.

Table 9 -- Rnet Wiring Specifications

AWG

CMP

NEC

UL

RNET WIRING SPECIFICATIONS

Description 4 conductor, unshielded, CMP,

plenum rated cable

Conductor 18 AWG

Maximum Length 500 ft

Jacket: white

Recommended Coloring Wiring: black, white, green, red

UL Temperature 32 to 167 F

Voltage 300-vac, power limited

Listing UL: NEC CL2P, or better

LEGEND

-- American Wire Gage

-- Communications Plenum Cable

-- National Electrical Code

-- Underwriters Laboratories

To wire the SPT sensor to the controller:

1. Partially cut, then bend and pull off the outer .jacket of

the Rnet cable(s), being careful not to nick the inner

insulation.

2. Strip about l/4 in. of the inner insulation from each wire.

See Fig. 32.

28

/OUTER JACKET

[TJ

.25IN. INNER INSULATION

Fig. 32 -- Rnet Cable Wire

3. Wire each terminal on the sensor to the same terminal on

the controller. See Fig. 15-25. Table 10 shows the recom-

mended Rnet wiring scheme.

Table 10 -- Rnet Wiring

WIRE TERMINAL

Red +12-v

Black .Rnet-

White Rnet+

Green Gnd

NOTE: The wire should be connected to the terminal shown.

Wiring a Supply Air Temperature (SAT) Sensor -- The

SAT sensor is required for reheat applications.

If the cable used to wire the SAT sensor to the controller

will be less than 100 ft, an unshielded 22 AWG (American

Wire Gage) cable should be used. If the cable will be greater

than 100 ft, a shield 22 AWG cable should be used. The cable

should have a maximum length of 500 ft.

To wire the SAT sensor to the controller:

1. Wire the sensor to the controller. See Fig. 15-25.

2. Verify that the Enable SATjumper is on.

3. Verify that the Enable SAT and Remote jumper is in the

left position.

Wiring an Indoor Air Quality (IAQ) Sensor -- An IAQ

sensor monitors CO2 levels. The WSHP Open controller uses

this information to adjust the outside-air dalnpers to provide

proper ventilation. An IAQ sensor can be wall-mounted or

mounted in a return air duct. (Duct installation requires an aspi-

rator box assembly.)

The sensor has a range of 0 to 2000 ppm and a linear 4 to

20 mA output. This is converted to 1 to 5 vdc by a 250-ohin,

1/4watt, 2% tolerance resistor connected across the zone con-

troller's IAQ input terminals.

NOTE: Do not use a relative humidity sensor and CO2sensor

on the sane zone controller if both sensors are powered off the

board. If sensors are externally powered, both sensors may be

used on the same zone controller.

If the cable used to wire the IAQ sensor to the controller

will be less than 100 ft, an unshielded 22 AWG (American

Wire Gage) cable should be used. If the cable will be greater

than 100 ft, a shield 22 AWG cable should be used. The cable

should have a maximum length of 500 ft.

To wire the IAQ sensor to the controller:

1. Wire the sensor to the controller. See Fig. 15-25.

2. Install a field-supplied 250-ohin, 1/4 watt, 2% tolerance

resistor across the controller's RH!IAQ and Gnd

terminals.

3. Verify the the RH!IAQ julnper is set to 0 to 5 vdc.

Wiring a Relative Humidity (RH) Sensor -- The RH sensor

is used for zone humidity control (dehumidification) if the

WSHP unit has a dehumidification device. If not, the sensor

only monitors humidity.

NOTE: Do not use a relative humidity sensor and CO 2sensor

on the sane zone controller if both sensors are powered off the

board. If sensors are externally powered, both sensors may be

used on the same zone controller.

If the cable used to wire the RH sensor to the controller will

be less than 100 ft, an unshielded 22 AWG (American Wire

Gage) cable should be used. If the cable will be greater than

100 ft, a shield 22 AWG cable should be used. The cable

should have a maximum length of 500 ft.

To wire the RH sensor to the controller:

1. Strip the outer jacket from the cable for at least 4 in.

2. Strip 1/4in. of insulation from eachwire.

3. Wire the sensor to the controller.

Step 10 -- Operate ECM Interface Board

The ECM fan is controlled by an interface board that converts

thermostat inputs and field selectable cfm settings to signals

used by the ECM (electronically COlrUnutated motor)

controller. See Fig. 33.

1/4" SPADE

CONNECTIONS

TO COMPLETE C OR

DELUXE D BOARD

THERMOSTAT

CONNECTIONS

\

DEHUMIDIFICATIO_

LED

£

-<

cocococococococo co

-W........ ===_=I=_=

!r--_ £

FAN SPEED SELECTION DIP SWITCH

THERMOSTAT

J INPUT LEDS

CFM COUNTER

J 1FLASH PERIOOCFM

ECM MOTOR

_- LOW VOYAGE

CONNECTOR

Fig. 33 -- ECM Interface Board Physical Layout

NOTE: Power must be offto the unit for at least three seconds

before the ECM will recognize a speed change. The motor will

recognize a change in the CFM Adjust or Dehumidification

mode settings while the unit is powered.

There are four different airflow settings from lowest airflow

rate (speed tap 1) to the highest airflow rate (speed tap 4).

Table 11 indicates settings for both versions of the ECM inter-

face board, followed by detailed information for each setting.

When the disconnect switch is closed, high voltage is

present in some areas of the electrical panel. Exercise cau-

tion when working with energized equipment. Failure to

heed this safety precaution could lead to personal iniury.

COOLING--The cooling setting determines the cooling

(normal) cfm for all units with ECM motor. Cooling (normal)

setting is used when the unit is not in Dehumidification mode.

Tap 1 is the lowest cfm setting, while tap 4 is the highest cfm

setting. To avoid air coil freeze-up, tap 1 may not be used if the

Dehumidification mode is selected. See Table 11.

HEATING -- The heating setting determines the heating cfm

for 50PSH, PSV, PSD units. Tap 1 is the lowest cfm setting,

while tap 4 is the highest cfm setting. See Table 11.

CFM ADJUST -- The CFM Adjust setting allows four selec-

tions. The NORM setting is the factory default position. The +

or- settings adjust the airflow by 4-15%. The + or- settings are

used to "fine rune" airflow adjustments. The TEST setting runs

the ECM at 70% torque, which causes the motor to operate

like a standard PSC motor, and disables the cfm counter. See

Tables 11-13 for ECM and PSC blower motors performance

data.

29

DEHUMIDIFICATIONMODE-- Thedehumidificationmode

settingprovidesfieldselectionofhumiditycontrol.Whenoper-

atinginthenormalmode,thecoolingairflowsettingsaredeter-

minedbythecoolingtapsettinginTable11.Whendehumidifi-

cationisenabled,thereisareductioninairflowincoolingtoin-

creasethe moistureremovalof the heatpump.The

Dehumidificationmodecanbeenabledintwoways:

1. ConstantDehumidificationmode:WhentheDehumidifi-

cationmodeisselectedviaDIPswitch,theECMwill

operatewitha multiplierappliedto thecoolingCFM

settings(approximately20to25%lowerairflow).Any

timetheunitisrunningintheCoolingmode,it willoper-

ateatthelowerairflowtohnprovelatentcapacity.The

"DEHUM"LEDwillbeilluminatedatalltimes.Heating

airflowisnotaffected.

2.

NOTE: Do not select Dehumidification mode if cooling

setting is tap 1.

Automatic (humidistat-controlled) Dehumidification

mode: When the Dehumidification mode is selected

via DIP switch AND a humidistat is connected to termi-

nal DH, the cooling airflow will only be reduced when

the humidistat senses that additional dehumidification is

required. The DH terminal is reverse logic. Therefore,

a humidistat (not dehumidistat) is required. The

"DEHUM" LED will be illuminated only when the humi-

distat is calling for Dehumidification mode. Heating

airflow is not affected.

NOTE: Do not select Dehumidification mode if cooling

setting is tap 1.

Table 11 -- ECM Blower Motor Performance Data

50PS MAX FAN

UNIT ESP MOTOR

SIZE (in. wg) (hp)

018 0.50 1/2

024 0.50 1/2

030 0.50 1/2

036 0.50 1/2

042 0.50 1/2

048 0.75

060 0.75

070 0.75

TAP

SETTING

4

3

2

1

4

3

2

1

4

3

2

1

4

3

2

1

4

3

2

1

4

3

2

1

4

3

2

1

4

3

2

1

COOLING MODE HEATING MODE

(cfm) (cfm)

Stage 2 Fan Stage 1 Stage 2 Fan

480 380 750 620 380

450 350 700 570 350

400 310 620 510 310

-- -- 530 430 270

610 470 1060 870 470

540 420 950 780 420

470 360 820 670 360

-- -- 690 570 300

720 560 1230 1000 560

640 500 1100 900 500

560 440 980 800 440

-- -- 850 700 380

900 700 1400 1150 700

800 630 1250 1020 630

690 540 1080 890 540

-- -- 900 740 450

1010 790 1580 1290 790

900 700 1400 1150 700

790 610 1230 1000 610

-- -- 1050 860 530

1110 870 1850 1520 870

990 780 1650 1350 780

850 670 1430 1180 670

-- -- 1200 980 560

1310 1030 2280 1870 1030

1170 910 2050 1680 910

1010 790 1750 1430 790

-- -- 1470 1210 660

1400 1100 2230 1780 1100

1250 980 2100 1680 980

1090 850 1840 1470 850

-- -- 1520 1220 730

DEHUMIDIFICATION MODE

(cfm)

Stage 1 Stage 2 Fan Stage 1

750 620 380 590

700 570 350 550

620 510 310 480

530 430 270 --

950 780 470 740

850 700 420 660

730 600 360 570

610 500 300 --

1130 920 560 880

1000 820 500 780

880 720 440 680

750 620 380 --

1400 1150 700 1090

1250 1020 630 980

1080 890 540 840

900 740 450 --

1580 1290 790 1230

1400 1150 700 1100

1230 1000 610 960

1050 860 530 --

1730 1420 870 1350

1550 1270 780 1210

1330 1090 670 1040

1120 920 560 --

2050 1680 1030 1600

1825 1500 910 1420

1580 1300 790 1230

1320 1080 660 --

2230 1780 1100 1710

1950 1600 980 1520

1700 1400 850 1330

1450 1200 730 --

LEGEND

ESP -- External Static Pressure

NOTES:

1. Factory setting is Tap Setting 2.

2. Airflow is controlled within 5% up to the Max ESP shown with

wet coil.

3. Do not select Dehumidification mode if Tap Setting is on

Setting 1.

4. All units are ARI/ISO (Air Conditioning & Refrigeration Institute/

International Organization for Standardization) 13256-1 rated

Tap Setting 3.

5. Airflow in cfm with wet coil and clean air filter.

6. Units have an ECM (electronically commuted motor) fan motor

as a standard feature. The small additional pressure drop of

the reheat coil causes the ECM motor to slightly increase rpm

to overcome the added pressure drop and maintain selected

cfm up to maximum ESP (external static pressure).

7. Unit sizes 006-012 are not available with ECM motors.

3O

Table 12 -- PSC Blower Motor Performance Data

50PS

UNIT

SIZE

018

O24

030

036

O42

048

060

070

RATED MIN

AIRFLOW CFM

600

85O

950

1250

1400

1600

1950

2100

FAN AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)

SPEED 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60 ).70 0.80 0.90 1.00

HI 704 708 711 702 693 692 690 683 675 658 640 598 515 ii

MED 602 601 599 590 581 583 585 579 573 560 547 492 :i i

450 LO 531 529 527 522 517 512 506 501 495 479 462

HSHI 894 886 877 859 841 827 812 786 760 744 728 I 659 ......

HS MED 765 760 755 747 738 725 711 690 668 654 640 602

HS LO 683 672 661 649 636 616 596 584 571 560 549 ',,,: iii:[i

HI 965 960 954 943 931 923 914 898 882 862 842 I 794 ] 7251 635 !: :

MED 841 833 825 817 809 800 790 777 763 747 731 686 623 iii,iii

I q

600 LO 723 715 707 703 698 689 680 668 656 642 627 i :: ,,_t i:ii:i

HSHI 1271 1250 1229 1207 1185 1164 1143 1118 1093 1061 lO291

HSMED 1048 1037 1025 1016 1007 994 981 962 943 915 886 I 822 I 731 626 i ,

HS LO 890 887 884 879 874 865 855 842 829 809 789 726 660 {

HI 1271 1250 1229 1207 1185 1164 1143 1118 1093 1061 1029 I 953 875 I 753 : '

MED 1048 1037 1025 1016 1007 994 981 962 943 915 886 822

750 LO 890 887 884 879 874 865 855 842 829 809 789 ii

HSHI 1439 1411 1383 1355 1327 1297 1266 1232 1198 1160 11221io4;i;&i ;3o

HSMED 1186 1174 1162 1151 1140 1126 1112 1089 1065 1039 1013 I 946 I 870 I 76211

HSLO 1039 1038 1036 1028 1020 1009 997 983 968 946 923I 866 I 798

HI 1411 1407 1402 1390 1378 1370 1361 1326 1290 1248 1205 1083 I 942:

MED 1171 1164 1156 1145 1133 1113 1092 1064 1035 997 958 i

900 LO 983 967 950 943 936 936

HSHI 1648 1633 1617 1597 1576 15571 15371 14931 1448 I 13971 13451 12071 1051 I 957• , • • , , , ,

HSMED 1344 1335 1325 1312 1299 1276 I1253 I12201 1186 I1143 I1099 1007 I903

HS LO 1141 1128 1115 1106 1097 1077 1057 1031 1005 I966 926 :i :i

HI 1634 1626 1618 1606 1594 1583 11571115391150711464114201265I lO78

NED 1332 1323 1314 1298 1282 1263 I1243 I12061 1169 I1115 lO6O i ;

1050 LO 1130 1109 1088 1086 1084 1066 1048 1052 1055 ;i:: [

HSHI 1798 1781 1764 1738 1711 1688I 1665 1163ol 15951155511514 142011239

HSMED 1384 1382 1379 1375 1371 1356 I 1341 1318 1294 1261 I 1227

HSLO 1091 1088 1084 1081 1078 1069 1060 :: ,i" i ;i :: :::

HI 1798 1781 1764 1738 1711 1688 11665 163o 1595 1155511514142011239

MED 1384 1382 1379 1375 1371 1356 I 1341 1318 1294 I 1261 I 1227

1200 LO ........................................................................................................................................................................................................................................................................................................................................................................................................................

HS HI ........

HS MED 1881 1858 1834 1807 1780 1746 1711 1676 1640 1604 1567 1469 1378 1286

HSLO 1738 1716 1694 1673 1651 1634 1617 1584 1551 1508 1465 1390 1321 1228

HI 2311 2306 2300 2290 2279 2268 2257 2233 2209 2175 2140 2088 1990 1901 1856 1752

MED 2058 2049 2039 2028 2016 2000 1983 1966 1949 1935 1920 1874 1807 1750 1670 1582

1500 LO 1868 1863 1858 1858 1858 1848 1838 1822 1806 1799 1792 1749 1699 1636 1570 ::i

HS HI 2510 2498 2486 2471 2455 2440 2424 2401 2377 2348 2318 2247 2161 2078 1986 1855

HSMED 2171 2167 2162 2162 2162 2158 2153 2135 2117 2101 2085 2024 1971 1891 1823 1691

HS LO 2010 2008 2006 2006 2006 2006 2006 1992 1977 1962 1947 1892 1851 1782 1705 1600

HI 2510 2498 2486 2471 2455 2440 2424 2401 2377 2348 2318 2247 2161 2078 1986 1855

1800 MED 2171 2167 2162 2162 2162 2158 2153 2135 2117 2101 2085 2024 1971 1891 1823 i i

LO 2010 2008 2006 2006 2006 2006 2006 1992 1977 1962 1947 1892 1851

LEGEND

ESP -- External Static Pressure

HS -- High Static

NOTES:

1. Shaded areas denote ESP where operation is not recommended.

2. Units factory shipped on medium speed. Other speeds require field

selection.

3. All airflow is rated and shown above at the lower voltage if unit is dual

voltage rated, e.g., 208 v for 208/230 v units.

4. Only two-speed fan (high and medium) available on 575 v units.

5. Data for units 006-012 not available at time of printing.

Table 13 -- PSC Blower Motor Performance Data for 50PS Units with HWR

COIL

FACE VELOCITY

FPM

200

250

300

350

400

450

500

LEGEND

UNITS WITH REHEAT ESP LOSS

018 024,030 036 042,048 060,070

in. wg in. wg in. wg in. wg in. wg

0.037 0.033 0.031 0.028 0.026

0.052 0.046 0.042 0.038 0.034

0.077 0.066 0.059 0.051 0.044

0.113 0.096 0.085 0.073 0.061

0.181 0.160 0.145 0.131 0.117

0.242 0.226 0.215 0.205 0.194

0.360 0.345 0.335 0.326 0.316

ESP -- External Static Pressure

HWR -- Hot Water Reheat

NOTES:

1. For units with HWR coil applications, calculate face velocity of the enter-

ing air. From the data table, find ESP for reheat application. The loss

includes wet coil loss.

2. Data for units 006-012 not available at time of printing.

31

PRE-START-UP

System Checkout EWhen the installation is complete,

follow the system checkout procedure outlined below before

starting up the system. Be sure:

1. Voltage is within the utilization range specifications of the

unit compressor and fan motor and voltage is balanced

for 3-phase units.

2. Fuses, breakers and wire are correct size.

3. Low voltage wiring is complete.

4. Piping and system flushing is complete.

5. Air is purged from closed loop system.

6. System is balanced as required. Monitor if necessary.

7. Isolation valves are open.

8. Water control valves or loop pumps are wired.

9. Condensate line is open and correctly pitched.

10. Transformer switched to lower voltage tap if necessary.

11. Blower rotates freely-- shipping support is removed.

12. Blower speed is on correct setting.

13. Air filter is clean and in position.

14. Service/access panels are in place.

15. Return-air temperature is between 40 to 80 F heating and

50 to 110 F cooling.

16. Air coil is clean.

17. Control field-selected settings are correct.

AIR COIL -- To obtain maximum performance, clean the air

coil before starting the unit. A 10% solution of dishwasher

detergent and water is recolrunended for both sides of the coil.

Rinse thoroughly with water.

FIELD SELECTABLE INPUTS

Jumpers and DIP (dual in-line package) switches on the

control board are used to customize unit operation and can be

configured in the field.

IMPORTANT: Jumpers and DIP switches should only [

be clipped when power to control board has been turned I

off.

Complete C Control Jumper Settings

WATER COIL FREEZE PROTECTION (FP1) LIMIT

SETTING--Select jumper 3 (JW3-FP1 Low Temp) to

choose FP1 limit of either 30 F or 10 E To select 30 F as the

limit, DO NOT clip the jumper. To select 10 F as the limit, clip

the jumper.

AIR COIL FREEZE PROTECTION (FP2) LIMIT SET-

TING- Select jumper 2 (JW2-FP2 Low Temp) to choose

FP2 limit of either 30 F or 10 F. To select 30 F as the limit, DO

NOT clip the jumper. To select 10 F as the limit, clip the

jumper.

ALARM RELAY SETTING-- Select jumper 1 (JIV1-AL2

Dry) to either connect alarm relay terminal (AL2) to 24 vac (R)

or to remain as a dry contact (no connection). To connect AL2

to R, DO NOT clip the jumper. To set as dry contact, clip the

jumper.

Deluxe D Control Jumper Settings

WATER COIL FREEZE PROTECTION (FP1) LIMIT

SETTING--Select jumper 3 (JW3-FP1 Low Temp) to

choose FP1 limit of either 30 F or 10 E To select 30 F as the

limit, DO NOT clip the jumper. To select 10 F as the limit, clip

the jumper.

AIR COIL FREEZE PROTECTION (FP2) LIMIT SET-

TING--Select jumper 2 (JW2-FP2 Low Temp) to choose

FP2 limit of either 30 F or 10 E To select 30 F as the limit, DO

NOT clip the jumper. To select 10 F as the limit, clip the

jumper.

ALARM RELAY SETTING -- Select jumper 4 (JW4-AL2

Dry) to either connect alarm relay terminal (AL2) to 24 vac (R)

or to remain as a dry contact (no connection). To connect AL2

to R, DO NOT clip the jumper. To set as dry contact, clip the

jumper.

LOW PRESSURE SETTING -- The Deluxe D control can

be configured for Low Pressure Setting (LP). Select jumper 1

(JIV1-LP Norm Open) for choosing between low pressure

input normally opened or closed. To configure for normally

closed operation, DO NOT clip the jumper. To configure for

normally open operation, clip the jumper.

Complete C Control DIP Switches EThe Com-

plete C control has 1 DIP (dual in-line package) switch bank

with five switches labeled SWl. See Fig. 15, 17, 18, 20, 21, or

23.

PERFORMANCE MONITOR (PM) -- The PM is a unique

feature that monitors water temperature and will display a wam-

ing when heat pump is beyond typical operating range. Refer to

Control Operation section for detailed information. DIP switch

1 will enable or disable this feature. To enable the PM, set the

switch to ON. To disable the PM, set the switch to OFF.

STAGE 2 -- DIP switch 2 will enable or disable compressor

delay. Set DIP switch to OFF for stage 2 in which the compres-

sor will have a 3-second delay before energizing.

NOTE: The alarm relay will not cycle during Test mode if

switch is set to OFF, stage 2.

SWITCH 3 -- Not used.

DDC OUTPUT AT EH2 -- Switch 4 provides a selection for

Direct Digital Control (DDC) operation. If set to DDC output

at EH2, the EH2 terminal will continuously output the last fault

code of the controller. If the control is set to EH2 Normal, then

EH2 will operate as standard electric heat output. Set the

switch to ON to set the EH2 to normal. Set the switch to OFF

to set the DDC output at EH2.

FACTORY SETTING- Switch 5 is set to ON. Do not

change the switch to OFF unless instructed to do so by the

factory.

Deluxe D Control DIP Switches _The Deluxe D

control has 2 DIP (dual m-line package) switch banks. Each

bank has 8 switches and is labeled either S1 or $2 on the cir-

cuit board. See Fig. 16, 19, 22, or 24.

DIP SWITCH BANK 1 (S1) -- This set of switches offers

the following options for Deluxe D control configuration:

Performance Monitor (PM) --The PM is a unique feature

that monitors water temperature and will display a warning

when heat pump is beyond typical operating range. Set switch 1

to enable or disable performance monitor. To enable the PM, set

the switch to ON. To disable the PM, set the switch to OFF.

Compressor Relay Staging Operation -- Switch 2 will en-

able or disable compressor relay staging operation. The com-

pressor relay can be set to turn on with stage 1 or stage 2 call

from the thermostat. This setting is used with dual stage units

(units with 2 compressors and 2 Deluxe D controls) or in mas-

ter/slave applications. In master/slave applications, each com-

pressor and fan will stage according to its switch 2 setting. If

switch is set to stage 2, the compressor will have a 3-second

delay before energizing during stage 2 demand.

NOTE: If DIP switch is set for stage 2, the alarm relay will not

cycle during Test mode.

32

Heating/Cooling Thermostat Type -- Switch 3 provides se-

lection of thermostat type. Heat pump or heat/cool thermostats

can be selected. Select OFF for heat/cool thermostats. When in

heat/cool mode, Y1 is used for cooling stage 1, Y2 is used for

cooling stage 2, Wl is used for heating stage 1 and O/W2 is

used for heating stage 2. Select ON for heat pump thermostats.

In heat pump mode, Y1 used is for compressor stage 1, Y2 is

used for compressor stage 2, Wl is used for heating stage 3 or

emergency heat, and O/W2 is used for reversing valve (heating

or cooling) depending upon switch 4 setting.

O/B Thermostat Type -- Switch 4 provides selection for heat

pump O/B thermostats. O is cooling output. B is heating out-

put. Select ON for thermostats with O output. Select OFF for

thermostats with B output.

Dehumidification Fan Mode -- Switch 5 provides selection

of normal or dehumidification fan mode. Select OFF for dehu-

midification mode. The fan speed relay will remain OFF dur-

ing cooling stage 2. Select ON for normal mode. The fan speed

relay will turn on during cooling stage 2 in normal mode.

Out_put -- Switch 6 provides selection for DDC operation. If

set to DDC output at EH2, the EH2 terminal will continuously

output the last fault code of the controller. If the control is set to

EH2 normal, then the EH2 will operate as standard electric

heat output. Set the switch to ON to set the EH2 to normal. Set

the switch to OFF to set the DDC output at EH2.

Boilerless Operation -- Switch 7 provides selection of boiler-

less operation and works in coNunction with switch 8. In boil-

erless operation mode, only the compressor is used for heating

when FP1 is above the boilerless changeover temperature set

by switch 8 below. Select ON for normal operation or select

OFF for boilerless operation.

Boilerless Changeover Temperature -- Switch 8 on S1 pro-

vides selection of boilerless changeover temperature set point.

Select OFF for set point of 50 F or select ON for set point of

40 E

If switch 8 is set for 50 F, then the compressor will be used

for heating as long as the FP1 is above 50 E The compressor

will not be used for heating when the FP1 is below 50 F and the

compressor will operates in emergency heat mode, staging on

EH1 and EH2 to provide heat. Ifa thermal switch is being used

instead of the FP1 thermistoc only the compressor will be used

for heating mode when the FP1 terminals are closed. If the FP1

terminals are open, the compressor is not used and the control

goes into emergency heat mode.

DIP SWITCH BANK 2 ($2) -- This set of DIP switches is

used to configure accessory relay options.

Switches 1 to 3 -- These DIP switches provide selection of

Accessory 1 relay options. See Table 14 for DIP switch

combinations.

Switches 4 to 6 -- These DIP switches provide

Accessory 2 relay options. See Table 15 for

combinations.

selection of

DIP switch

Table 14 -- DIP Switch Block $2 --

Accessory 1 Relay Options

ACCESSORY 1 DIP SWITCH POSITION

RELAY OPTIONS 1 2 3

Cycle with Fan On On On

Digital NSB Off On On

Water Valve -- Slow Opening On Off On

OAD On On Off

Reheat- Humidistat Off Off Off

Reheat -- Dehumidistat Off On Off

LEGEND

NSB -- Night Setback

OAD -- Outside Air Damper

NOTE: All other DIP switch combinations are invalid.

Table 15 -- DIP Switch Block S2 --

Accessory 2 Relay Options

ACCESSORY 2 DIP SWITCH POSITION

RELAY OPTIONS 4 5 6

Cycle with Compressor On On On

Digital NSB Off On On

Water Valve -- Slow Opening On Off On

OAD On On Off

LEGEND

NSB -- Night Setback

OAD -- Outside Air Damper

NOTE: All other switch combinations are invalid.

Auto Dehumidification Mode or High Fan Mode -- Switch 7

provides selection of auto dehumidification fan mode or high

fan mode. In auto dehumidification fan mode, the fan speed

relay will remain off during cooling stage 2 if terminal H is

active. In high fan mode, the fan enable and fan speed relays will

turn on when terminal H is active. Set the switch to ON for auto

dehumidification fan mode or to OFF for high fan mode.

Factory Setting -- Switch 8 is set to ON. Do not change the

switch to OFF unless instructed to do so by the factory.

Units with Modulating Hot Water Reheat

(HWR) Option EA heat pump equipped with hot water

reheat (HWR) can operate in three modes: cooling, cooling

with reheat, and heating. The cooling and heating modes are

like any other water source heat pump. The reversing valve

("O" signal) is energized in cooling, along with the compressor

contactor(s) and blower relay. In the heating mode, the revers-

ing valve is deenergized. Almost any thermostat will activate

the heat pump in heating or cooling modes. The Deluxe D

microprocessor board, which is standard with the HWR

option, will accept either heat pump (Y,O) thermostats or non-

heat pump (Y,W) thermostats.

The reheat mode requires either a separate humidistat/

dehumidistat or a thermostat that has an integrated dehumidifi-

cation function for activation. The Deluxe D board is config-

ured to work with either a humidistat or dehumidistat input to

terminal '°H" (DIP switch settings for the Deluxe D board are

shown in Table 16). Upon receiving an '°H" input, the Deluxe

D board will activate the cooling mode and engage reheat.

Table 16- Humidistat/Dehumidistat Logic and

Deluxe D DIP Switch Settings

Reheat Reheat

Sensor 2.1 2.2 2.3 Logic (ON)- H (OFF)- H

Humidistat Off Off Off Reverse 0 VAC 24 VAC

Dehumidistat Off On Off Standard 24 VAC 0 VAC

Table 17 shows the relationship between thermostat input

signals and unit operation. There are four operational inputs for

single-stage units and six operational inputs for dual-stage

units:

• Fan Only

• Cooling Stage 1

• Cooling Stage 2

• Heating Stage 1

• Heating Stage 2

• Reheat Mode

33

HWRAPPLICATIONCONSIDERATIONS-- Unlike

mosthotgasreheatoptions,theHWRoptionwill operate

overawiderangeof entering-watertemperatures(EWTs).

Specialflow regulation(waterregulatingvalve)is not

requiredfor lowEWTconditions.However,below55F,

supply-airtemperaturescannotbemaintainedat 72 F

becausethecoolingcapacityexceedsthereheatcoilcapac-

ity at lowwatertemperatures.Below55F,essentiallyall

waterisdivertedtothereheatcoil(noheatofrejectionto

thebuildingloop).AlthoughtheHWRoptionwillworkfine

withlowEWTs,overcoolingof thespacemayresultwith

wellwatersystemsor,onrareoccasions,withgroundloop

(geothermal)systems(NOTE:Extendedrangeunitsare

requiredfor wellwaterandgroundloopsystems).Since

dehumidificationisgenerallyonlyrequiredincooling,most

groundloopsystemswillnotexperienceovercoolingof the

supply-airtemperature.If overcoolingofthespaceisacon-

cern(e.g.,computerroomwellwaterapplication),auxiliary

heatingmayberequiredto maintainspacetemperature

whentheunitisoperatingin thedehumidificationmode.

WatersourceheatpumpswithHWRshouldnotbeusedas

makeupairunits.Theseapplicationsshoulduseequipment

specificallydesignedformakeupair.

HWRCOMPONENTFUNCTIONS-- Theproportional

controlleroperateson24VACpowersupplyandautomatically

adjuststhewatervalvebasedonthesupply-airsensor.The

supply-airsensorsensessupply-airtemperatureattheblower

inlet,providingtheinputsignalnecessaryfortheproportional

controltodrivethemotorizedvalveduringthereheatmodeof

operation.Themotorizedvalveisaproportionalactuator/three-

wayvalvecombinationusedto divertthecondenserwater

fromthecoaxto thehydronicreheatcoilduringthereheat

modeof operation.Theproportionalcontrollersendsasignal

to themotorizedvalvebasedonthesupply-airtemperature

readingfromthesupplyairsensor.

Thelooppumpcirculatescondenserwaterthroughthehy-

dronicreheatcoilduringthereheatmodeofoperation(referto

Fig.34).In thisapplication,thelooppumpisonlyenergized

duringthereheatmodeofoperation.Thehydroniccoilisuti-

lizedduringthereheatmodeofoperationtoreheattheairtothe

setpointoftheproportionalcontroller.Condenserwaterisdi-

vertedbythemotorizedvalveandpumpedthroughthehydron-

iccoilbythelooppumpinproportiontothecontrolsetpoint.

Theamountofreheatingisdependentonthesetpointandhow

farfromthesetpointthesupplyairtemperatureis.Thefactory

setpointis70to75F,generallyconsidered"neutral"air.

Table 17- HWR Operating Modes

MODE

No Demand

Fan Only

Cooling Stage 1

Cooling Stage 2

Cooling and Dehumidistatt

Dehumidistat Only

Heating Stage 1

Heating Stage 2

Heating and Dehumidistat**

INPUT OUTPUT

O G Y1 Y2* H O G Y1

On/Off Off Off Off Off On/Off Off Off

On/Off On Off Off Off On/Off On Off

On On On Off Off On On On

On On On On Off On On On

On On On On/Off On On On On

On/Off Off Off Off On On On On

Off On On Off Off Off On On

Off On On On Off Off On On

Off On On On/Off On Off On On

*Not applicable for single stage units; Full load operation for dual

capacity units.

1-Cooling input takes priority over dehumidify input.

**Deluxe D is programmed to ignore the H demand when the unit is

in heating mode.

NOTE: On/Off is either on or off.

Y2*

Off

Off

Off

On

On/Off

On

Off

On

On/Off

Reheat

Off

Off

Off

Off

Off

On

Off

Off

Off

Water In

(From Water Loop)

Water Out Refrigerant In

(To Water Loop) Mixing Valve (Cooling)

Internal Pump U COAX

NOTE: All components shown are

internal to the heat pump unit.

Refrigerant Out

(Cooling) Entering Air -_

Evaporator Coil

Fig. 34 -- HWR Schematic

Leaving

Air

Reheat

Coil

34

Deluxe D Control Accessory Relay Configura-

tions -- The following accessory relay settings are applica-

ble for Deluxe D control:

CYCLE WITH FAN -- In this configuration, the accessory

relay 1 will be ON any trine the Fan Enable relay is on.

CYCLE WITH COMPRESSOR -- In this configuration, the

accessory relay 2 will be ON any time the Compressor relay

IS on.

DIGITAL NIGHT SET BACK (NSB) -- In this configura-

tion, the relay will be ON if the NSB input is connected to

ground C.

NOTE: If there are no relays configured for digital NSB, then

the NSB and override (OVR) inputs are automatically config-

ured for mechanical operation.

MECHANICAL NIGHT SET BACK -- When NSB input is

connected to ground C, all thermostat inputs are ignored. A

thermostat set back heating call will then be connected to the

OVR input. If OVR input becomes active, then the Deluxe D

control will enter night low limit (NLL) staged heating mode.

The NLL staged heating mode will then provide heating dur-

ing the NSB period.

WATER VALVE (SLOW OPENING) -- If relay is configured

for Water Valve (slow opening), the relay will start 60 seconds

prior to starting compressor relay.

OUTSIDE AIR DAMPER (OAD) -- If relay is configured for

OAD, the relay will normally be ON any time the Fan Enable

relay is energized. The relay will not start for 30 minutes fol-

lowing a return to normal mode from NSB, when NSB is no

longer connected to ground C. After 30 minutes, the relay will

start if the Fan Enable is set to ON.

To avoid equipment damage, DO NOT leave system filled

in a building without heat during the winter unless anti-

freeze is added to system water. Condenser coils never

fully drain by themselves and will freeze unless winterized

with antifreeze.

START-UP

Use the procedure outlined below to initiate proper unit

start-up.

NOTE: This equipment is designed for indoor installation only.

Operating Limits

ENVIRONMENT- This equipment is designed for indoor

installation ONLY Extreme variations in temperature, humidi-

ty and corrosive water or air will adversely affect the unit per-

formance, reliability and service life.

POWER SUPPLY -- A voltage variation of+ 10% of name-

plate utilization voltage is acceptable.

UNIT START1NG CONDITIONS--Units start and operate

in an ambient temperature of 45 F with entering-air tempera-

ture at 50 F, entering-water temperature at 60 F and with both

air and water at the flow rates used.

NOTE: These operating lrinits are not normal or continuous

operating conditions. Assume that such a start-up is for the

purpose of bringing the building space up to occupancy tem-

perature. See Table 18 for operating limits.

When the disconnect switch is closed, high voltage is

present in some areas of the electrical panel. Exercise cau-

tion when working with the energized equipment. Failure

to heed this warning may result in personal iniury.

1. Restore power to system.

2. Turn thermostat fan position to ON. Blower should start.

3. Balance airflow at registers.

4. Adjust all valves to the full open position and turn on the

line power to all heat pump units.

5. Operate unit in the cooling cycle. Refer to Table 14 for

unit operating lrinits.

NOTE: Three factors determine the operating limits of a unit:

(1) entering air temperature, (2) water temperature and (3)

ambient temperature. Whenever any of these factors are at a

minimum or maximum level, the other two factors must be at a

normal level to ensure proper unit operation. See Table 18.

Table 18 nOperating Limits --

50PSH, PSV, PSD Units

AIR LIMITS

Min. Ambient Air

Rated Ambient Air

Max. Ambient Air

Min. Entering Air

Rated Entering Air db/wb

Max. Entering Air db/wb

WATER LIMITS

Min. Entering Water

Normal Entering Water

Max. Entering Water

LEGEND

db -- Dry Bulb

wb -- Wet Bulb

COOLING (F) HEATING (F)

45 39

80.6 68

110 85

50 40

80/67 68

110/83 80

30 20

50-110 30-70

120 90

NOTE: Value in heating column is dry bulb only. Any wet bulb reading is

acceptable.

Scroll Compressor Rotation EIt is important to be

certain compressor is rotating in the proper direction. To

determine whether or not compressor is rotating in the proper

direction:

1. Connect service gages to suction and discharge pressure

fittings.

2. Energize the compressor.

3. The suction pressure should drop and the discharge

pressure should rise, as is normal on any start-up.

If the suction pressure does not drop and the discharge

pressure does not rise to normal levels:

1. Turn offpower to the unit. Install disconnect tag.

2. Reverse any two of the unit power leads.

3. Reapply power to the unit and verify pressures are correct.

The suction and discharge pressure levels should now move

to their normal start-up levels.

When the compressor is rotating in the wrong direction, the

unit makes more noise and does not provide cooling.

After a few minutes of reverse operation, the scroll com-

pressor internal overload protection will open, thus activating

the unit lockout. This requires a manual reset. To reset, turn the

thermostat on and then off.

NOTE: There is a 5-minute time delay before the compressor

will start.

Unit Start-Up Cooling Mode

1. Adjust the unit thermostat to the warmest position.

Slowly reduce the thermostat position until the compres-

sor activates.

2.

3.

Check for cool air delivery at unit grille a few minutes

after the unit has begun to operate.

Verify that the compressor is on and that the water flow

rate is correct by measuring pressure drop through the

heat exchanger using P/T plugs. See Table 19. Check the

elevation and cleanliness of the condensate lines; any

dripping could be a sign of a blocked line. Be sure the

condensate trap includes a water seal.

35

4. Checkthetemperatureof bothsupplyanddischarge

water.ComparetoTables20-30.If temperatureiswithin

range,proceed.Iftemperatureisoutsidetherange,check

thecoolingrefrigerantpressuresinTables20-30.

5. Checkairtemperaturedropacrossthecoilwhencom-

pressoris operating.Air temperaturedropshouldbe

between15and25E

Table 19 -- Water Temperature Change

through Heat Exchanger

WATER FLOW RATE (GPM)

For Closed Loop: Ground Source or

Cooling/Boiler Systems at 3 gpm/ton

For Open Loop: Ground Water Systems at

1.5 gpm/ton

COOLING

RISE (F)

Min Max

9 12

20 26

HEATING

DROP (F)

Min Max

4 8

lO 17

Unit Start-Up Heating Mode

NOTE: Operate the unit in heating cycle after checking the

cooling cycle. Allow 5 minutes between tests for the pressure

or reversing valve to equalize.

1. Turn thermostat to lowest setting and set thermostat

switch to HEAT position.

2. Slowly turn the thermostat to a higher temperature until

the compressor activates.

3. Check for warm air delivery at the unit grille within a few

minutes after the unit has begun to operate.

4. Check the temperature of both supply and discharge

water. Compare to Tables 20-30. If temperature is within

range, proceed. If temperature is outside the range, check

the heating refrigerant pressures in Tables 20-30.

5. Once the unit has begun to run, check for warm air deliv-

ery at the unit grille.

6. Check air temperature rise across the coil when compres-

sor is operating. Air temperature rise should be between

20 and 30 F after 15 minutes at load.

7. Check for vibration, noise and water leaks.

Table 20 -- 50PSH, PSV, PSD006 Typical Unit Operating Pressures and Temperatures

FULL LOAD COOLING --WITHOUT HWG ACTIVE FULL LOAD HEATING -- WITHOUT HWG ACTIVE

ENTERING

WATER WATER Water Water

FLOW Suction Discharge Super- Sub- Temp Air Temp Suction Discharge Super- Sub- Temp Air Temp

Rise

TEMP (GPM/ton) Pressure Pressure heat cooling Rise Drop Pressure Pressure heat cooling Drop (F) DB

(F) (psig) (psig) (F) (F) (F) (F) DB (psig) (psig) (F) (F) (F)

1.5 114-124 142-162 24-29 3-8 15.2-17.2 17-23 75-85 272-292 13-18 4- 9 5.9- 7.9 16-22

30 2.25 111-121 132-152 26-31 3-8 11.4-13.4 17-23 78-88 274-294 13-18 4- 9 4.3-6.3 16-22

3 109-119 122-142 28-33 3-8 7.5-9.5 17-23 81-91 276-296 13-18 4- 9 2.7-4.7 17-23

1.5 130-140 190-210 14-19 2-7 16.5-18.5 18-24 104-114 299-319 12-17 6-11 8.8-10.8 21-27

50 2.25 129-139 180-200 16-21 2-7 12.3-14.3 18-24 112-122 304-324 12-17 4- 9 6.7-8.7 22-28

3 128-138 170-190 19-24 2-7 8.00-10.0 18-24 120-130 308-328 12-17 3- 8 4.5- 6.5 23-29

1.5 143-153 265-285 9-14 2-7 15.5-17.5 18-24 129-139 321-341 11-16 7-12 11.2-13.2 25-31

70 2.25 141-151 252-272 10-15 2-7 11.5-13.5 18-24 144-154 330-350 13-18 4- 9 8.8- 10.8 27-33

3 140-150 240-260 11-16 2-7 7.5-9.5 18-24 159-169 340-360 15-20 3- 8 6.3- 8.3 28-34

1.5 149-159 340-370 8-13 2-7 14.2-16.2 17-23 163-173 349-369 13-18 7-12 14.3-16.3 30-36

90 2.25 149-159 335-355 8-13 2-7 10.6-12.6 17-23 180-190 360-380 11-16 4- 9 11.2-13.2 32-38

3 148-158 320-340 8-13 2-7 7.00-9.00 17-23 198-208 372-392 10-15 3- 8 8.1-10.1 34-40

1.5 154-164 451-471 8-13 2-7 12.7-14.7 15-21 ......

110 2.25 154-164 428-448 8-13 2-7 9.5-11.5 15-21 ......

3 153-163 405-425 8-13 2-7 6.5-8.5 15-21 ......

LEGEND

DB -- Dry Bulb

HWG -- Hot Water Generator

-- -- No Heating Operation in This Temperature Range

Table 21 -- 50PSH, PSV, PSD009 Typical Unit Operating Pressures and Temperatures

FULL LOAD COOLING --WITHOUT HWG ACTIVE FULL LOAD HEATING --WITHOUT HWG ACTIVE

ENTERING WATER Water

WATER FLOW Suction Discharge Super- Sub- Temp Air Temp Suction Discharge Super- Sub-

TEMP (GPM/ton) Pressure Pressure heat cooling Drop Pressure Pressure heat cooling

Rise

(F) (psig) (psig) (F) (F) (F) (F) DB (psig) (psig) (F) (F)

1.5 126-136 161-181 17-22 8-13 19.8-21.8 21-27 74-84 278-298 6-11 4-9

30 2.25 126-136 146-166 17-22 7-12 14.9-16.9 21-27 77-87 280-300 6-11 4-9

3 126-136 131-151 17-22 6-11 9.9-11.9 21-27 79-89 283-303 6-11 3-8

1.5 132-142 215-235 10-15 8-13 18.8-20.8 20-26 104-114 309-329 8-12 7-12

50 2.25 132-142 200-220 10-15 7-12 14.1-16.1 20-26 106-116 312-332 8-12 7-12

3 132-142 185-205 10-15 6-11 9.4-11.4 20-26 108-118 315-335 8-12 7-12

1.5 138-148 278-298 8-13 9-14 17.7-19.7 19-25 127-137 332-352 10-15 10-15

70 2.25 138-148 263-283 8-13 8-13 13.1-15.1 19-25 132-142 340-360 11-16 10-15

3 137-147 248-268 8-13 7-12 8.5-10.5 19-25 138-148 347-367 13-18 10-15

1.5 142-152 365-385 8-13 9-14 16.0-18.0 18-24 164-174 372-392 17-22 13-18

90 2.25 142-152 351-371 8-13 8-13 12.0-14.0 18-24 165-175 375-395 18-23 13-18

3 142-152 337-357 8-13 7-12 8.0-10.0 18-24 167-177 379-399 19-24 13-18

1.5 150-160 439-459 7-12 9-14 14.2-16.2 17-23 ....

110 2.25 150-160 439-459 7-12 8-13 10.6-12.6 17-23 ....

3 150-160 439-459 7-12 7-12 6.9-8.9 17-23 ....

LEGEND

DB -- Dry Bulb

HWG -- Hot Water Generator

-- -- No Heating Operation in This Temperature Range

Water

Temp

Drop

(F)

6.t-8.1

4.5-6.5

2.8-4.8

9.6-11.6

7.0-9.0

4.5-6.5

12.0-14.0

9.0-10

6.1-8.1

14.5-16.5

11.2-13.2

7.9-9.9

Air Temp

Rise

(F) DB

18-24

18-24

19-25

24-30

24-30

25-31

29-35

29-35

30-36

35-41

35-41

36-42

m m

m m

m m

36

Table 22 -- 50PSH, PSV, PSD012 Typical Unit Operating Pressures and Temperatures

ENTERING

WATER

TEMP

(F)

30

50

70

90

110

FULL LOAD COOLING -- WITHOUT HWG ACTIVE FULL LOAD HEATING -- WITHOUT HWG ACTIVE

WATER Water Water

FLOW Suction Discharge Super- Sub- Temp Air Temp Suction Discharge Super- Sub- Temp

(GPM/ton) Pressure Pressure heat cooling Rise Drop Pressure Pressure heat cooling Drop

(psig) (psig) (F) (F) (F) (F) DB (psig) (psig) (F) (F) (F)

1.5 98-108 140-160 36-41 14-19 17.1-19.1 19-25 72-82 301-321 9-14 12-17 6.5-8.5

2.25 98-108 135-155 36-41 12-17 12.5-14.5 19-25 85-95 304-324 9-14 12-17 4.7-6.7

3 99-109 127-148 36-41 10-15 7.9-9.9 19-25 78-88 308-328 9-14 12-17 2.9-4.9

1.5 118-128 215-235 22-27 14-19 18.1-20.1 20-26 100-110 337-357 10-15 15-20 9.5-11.5

2.25 118-128 200-220 22-27 12-17 13.1-15.1 20-26 98-108 334-354 10-15 15-20 6.6-8.6

3 118-128 185-205 22-27 10-15 8.1-10.1 19-25 95-105 332-352 11-16 15-20 3.8-5.8

1.5 132-142 300-320 11-16 12-17 17.0-19.0 19-25 115-125 361-381 19-24 18-23 11.1-13.1

2.25 132-142 263-282 11-16 10-15 12.6-14.6 19-25 112-122 360-380 20-25 18-23 8.0-10.0

3 132-142 245-265 12-17 7-12 8.2-10.2 19-25 110-120 356-376 21-26 18-23 4.8-6.8

1.5 138-148 366-386 9-14 11-16 15.8-17.8 18-24 122-132 376-396 34-39 22-27 12.1-14.1

2.25 138-148 353-373 9-14 9-14 14.9-16.9 18-24 123-133 378-398 36-41 22-27 9.0-11.0

3 138-148 340-360 9-14 6-11 14.0-16.0 18-24 124-134 380-400 38-43 23-28 5.8-7.8

1.5 145-155 453-473 9-14 9-14 14.7-16.7 16-22 ....

2.25 145-155 442-462 9-14 7-12 10.8-12.8 16-22 ....

3 145-155 431-451 9-14 5-10 6.8-8.8 17-23 ....

LEGEND

DB -- Dry Bulb

HWG -- Hot Water Generator

-- -- No Heating Operation in This Temperature Range

Air Temp

Rise

(F) DB

21-27

21-27

22-28

26-32

26-32

26-32

29-35

29-35

29-35

32-38

32-38

32-38

m m

m m

m m

Table 23 -- 50PSH, PSV, PSD018 Typical Unit Operating Pressures and Temperatures

FULL LOAD COOLING -- WITHOUT HWG ACTIVE FULL LOAD HEATING -- WITHOUT HWG ACTIVE

ENTERING

WATER WATER Water Water

FLOW Suction Discharge Super- Sub- Temp Air Temp Suction Discharge Super- Sub- Temp Air Temp

Drop Pressure Pressure heat cooling Drop Rise

TEMP(F) (GPM/ton) Pressure(psig)Pressure(psig) heat(F) cooling(F) Rise(F) (F) DB (psig) (psig) (F) (F) (F) (F) DB

1.5 120-130 155-175 27-32 11-16 16.9-19.9 16-22 73- 83 268-288 8-13 4- 9 6.1- 8.1 15-21

30 2.25 120-130 142-162 27-32 9-14 12.5-14.5 17-23 75- 85 270-290 8-13 4- 9 4.4- 6.4 16-22

3 120-130 128-148 27-32 9-14 8.1-10.1 17-23 78- 88 272-292 8-13 4- 9 2.9- 4.9 16-22

1.5 137-147 220-240 16-21 10-15 17.0-19.0 16-22 102-112 295-315 8-13 8-13 9.1-11.1 20-26

50 2.25 137-147 206-226 16-21 8-13 12.6-14.6 17-23 106-116 297-317 8-13 8-13 6.9- 8.9 21-27

3 137-147 192-212 16-21 8-13 8.4-10.4 17-23 110-120 299-319 8-13 8-13 4.7- 6.7 21-27

1.5 142-152 287-307 7-12 10-15 15.9-17.9 16-22 131-141 324-344 9-14 10-15 12.1-14.1 25-33

70 2.25 142-152 273-239 7-12 8-13 11.8-13.8 17-23 137-147 326-346 9-14 10-15 9.3-11.3 26-34

3 142-152 259-279 7-12 8-13 7.8- 9.8 17-23 144-154 328-348 9-14 10-15 6.6- 8.6 26-34

1.5 146-156 375-395 6-11 10-15 14.9-16.9 16-22 174-184 360-380 10-15 12-17 15.8-17.8 32-40

90 2.25 146-156 361-381 6-11 8-13 11.0-13.0 17-23 180-190 367-387 11-16 12-17 11.9-13.9 33-41

3 146-156 347-367 6-11 8-13 7.2- 9.2 17-23 187-197 374-394 12-17 12-17 8.0-10.0 33-41

1.5 154-164 478-498 6-11 10-15 14.0-16.0 16-22 ......

110 2.25 154-164 461-481 6-11 8-13 10.2-12.2 16-22 ......

3 154-164 445-465 6-11 8-13 6.5- 8.5 16-22 ......

LEGEND

DB -- Dry Bulb

HWG -- Hot Water Generator

-- -- No Heating Operation in This Temperature Range

Table 24 -- 50PSH, PSV, PSD024 Typical Unit Operating Pressures and Temperatures

FULL LOAD COOLING -- WITHOUT HWG ACTIVE FULL LOAD HEATING -- WITHOUT HWG ACTIVE

ENTERING WATER Water Water

WATER FLOW Suction Discharge Super- Sub- Air Temp Suction Discharge Super- Sub- Air Temp

TEMP (GPM/ton) Pressure Pressure heat cooling Temp Drop Pressure Pressure heat cooling Temp Rise

Rise Drop (F) DB

(F) (psig) (psig) (F) (F) (F) (F) DB (psig) (psig) (F) (F) (F)

1.5 115-125 154-174 40-45 8-13 16.5-18.5 19-25 73- 83 283-303 8-12 6-11 5.9- 7.9 16-22

30 2.25 115-125 141-161 40-45 6-11 12.1-14.1 20-26 75- 85 285-305 8-12 6-11 4.2- 6.2 17-23

3 115-125 127-147 40-45 6-11 77.7- 9.7 20-26 78- 88 287-307 8-12 6-11 2.7- 4.7 18-24

1.5 115-120 209-229 24-29 10-15 15.7-17.7 18-24 102-112 313-333 8-12 8-13 8.9-10.9 22-28

50 2.25 115-120 195-215 24-29 8-13 11.6-13.6 18-24 106-116 314-334 8-12 8-13 6.7- 8.7 23-29

3 115-120 181-201 24-29 8-13 7.6- 9.6 18-24 110-120 316-336 8-12 8-13 4.5- 6.5 23-29

1.5 136-146 275-295 6-11 6-11 15.7-17.7 18-24 128-138 340-360 9-14 9-14 11.3-13.3 27-34

70 2.25 136-146 261-281 6-11 5-10 11.6-13.6 18-24 134-144 342-362 9-14 9-14 8.5-10.5 28-35

3 136-146 247-267 6-11 4- 9 7.6- 9.6 18-24 141-151 344-364 9-14 9-14 5.8- 7.8 28-35

1.5 140-150 361-381 6-11 6-11 14.9-16.9 18-24 162-172 370-390 14-19 9-14 14.4-16.4 32-40

90 2.25 140-150 347-367 6-11 5-10 11.0-13.0 18-24 166-176 376-396 15-20 9-14 10.8-12.8 34-42

3 140-150 333-353 6-11 4- 9 7.2- 9.2 18-24 171-181 383-403 16-21 9-14 7.1- 9.1 34-42

1.5 144-154 460-480 6-11 6-11 13.9-15.9 17-23 ......

110 2.25 144-154 445-465 6-11 4- 9 10.2-12.2 17-23 ......

3 144-154 428-448 6-11 4- 9 6.5- 8.5 17-23 ......

LEGEND

DB -- Dry Bulb

HWG -- Hot Water Generator

-- -- No Heating Operation in This Temperature Range

37

Table 25 -- 50PSH, PSV, PSD030 Typical Unit Operating Pressures and Temperatures

FULL LOAD COOLING -- WITHOUT HWG ACTIVE FULL LOAD HEATING -- WITHOUT HWG ACTIVE

ENTERING

WATER WATER Water Water

FLOW Suction Discharge Super- Sub- Temp Air Temp Suction Discharge Super- Sub- Temp Air Temp

Drop Pressure Pressure heat cooling Drop Rise

TEMP(F) (GPM/ton) Pressure(psig)Pressure(psig) heat(F) cooling(F) Rise(F) (F) DB (psig) (psig) (F) (F) (F) (F) DB

1.5 116-126 146-166 27-32 7-13 19.6-21.6 16-22 69- 79 275-295 7-12 6-11 7.2- 9.2 16-22

30 2.25 115-125 138-158 27-32 6-11 14.3-16.3 17-23 73- 83 277-297 7-12 6-11 5.4- 7.4 17-23

3 115-125 128-148 27-32 6-11 8.0-10.0 17-23 76- 86 279-299 7-12 6-11 3.5- 5.5 17-23

1.5 129-139 217-237 12-17 6-11 20.8-22.8 17-23 96-106 300-320 10-15 9-14 10.5-12.5 21-27

50 2.25 128-138 203-223 12-17 5-10 15.0-17.0 18-24 100-110 304-324 10-15 9-14 7.6- 9.6 22-28

3 128-138 189-209 12-17 5-10 9.2-11.2 18-24 105-115 309-329 10-15 9-14 4.8- 6.8 22-28

1.5 132-142 293-313 9-14 6-11 20.1-22.1 17-23 123-133 327-347 11-16 11-16 13.2-15.2 25-32

70 2.25 131-141 274-294 9-14 5-10 14.4-16.4 18-24 129-139 333-353 11-16 11-16 9.8-11.8 26-33

3 131-141 256-276 9-14 5-10 8.6-10.6 18-24 135-145 339-359 11-16 11-16 6.4- 8.4 27-34

1.5 137-147 383-403 7-12 5-10 19.4-21.4 16-22 155-165 355-375 13-18 11-16 16.8-18.8 30-38

90 2.25 137-147 362-382 7-12 5-10 13.8-15.8 16-22 162-172 362-382 14-19 11-16 12.7-14.7 31-39

3 137-147 342-362 7-12 5-10 8.2-10.2 16-22 169-179 369-389 16-21 11-16 8.6-10.6 32-40

1.5 143-153 475-495 6-11 9-14 18.2-20.2 16-22 ......

110 2.25 143-153 457-477 6-11 6-11 13.0-14.0 16-22 ......

3 143-153 439-459 6-11 6-11 7.7- 9.7 16-22 ......

LEGEND

DB -- Dry Bulb

HWG -- Hot Water Generator

-- -- No Heating Operation in This Temperature Range

Table 26 -- 50PSH, PSV, PSD036 Typical Unit Operating Pressures and Temperatures

FULL LOAD COOLING -- WITHOUT HWG ACTIVE FULL LOAD HEATING -- WITHOUT HWG ACTIVE

ENTERING WATER Water Water

WATER FLOW Suction Discharge Super- Sub- AirTemp Suction Discharge Super- Sub- AirTemp

TEMP (GPM/ton) Pressure Pressure heat cooling Temp Drop Pressure Pressure heat cooling Temp Rise

Drop

Rise (F) DB (psig) (psig) (F) (F) (F) DB

(F) (psig) (psig) (F) (F) (F) (F)

1.5 117-127 142-162 33-38 8-14 19.1-21.1 15-22 69- 79 276-296 10-15 10-15 7.2- 9.2 17-23

30 2.25 116-126 134-154 33-38 7-12 13.8-15.8 15-22 73- 83 278-298 10-15 10-15 5.3- 7.3 18-24

3 116-126 124-144 33-38 7-12 7.4- 9.4 15-22 76- 86 280-300 10-15 10-15 3.5- 5.5 18-24

1.5 136-146 211-231 11-16 6-11 20.6-22.6 17-23 99-109 302-322 10-15 13-18 10.6-12.6 22-28

50 2.25 136-146 197-217 11-16 5-10 14.8-16.8 17-23 103-113 306-326 10-15 13-18 7.7- 9.7 23-29

3 136-146 183-203 11-16 5-10 9.0-11.0 17-23 108-118 311-331 10-15 13-18 5.0- 7.0 23-29

1.5 137-147 275-295 9-14 10-15 19.0-21.0 18-24 127-137 332-352 10-15 15-20 13.5-15.5 27-34

70 2.25 137-147 260-280 9-14 9-14 13.8-15.8 19-25 133-143 338-358 10-15 15-20 10.1-12.1 28-35

3 137-147 245-265 9-14 9-14 8.0-10.0 19-25 139-149 344-364 10-15 15-20 6.7- 8.7 29-36

1.5 142-152 373-393 7-12 10-15 19.5-21.5 17-23 164-174 365-385 11-16 15-20 17.4-19.4 34-42

90 2.25 142-152 352-372 8-13 6-11 13.9-15.9 17-23 172-182 372-392 11-16 15-20 13.2-15.2 35-43

3 142-152 332-352 8-13 6-11 8.3-10.3 17-23 181-191 379-399 12-17 15-20 9.0-11.0 36-44

1.5 147-157 467-487 6-11 10-15 16.2-18.2 16-22 ......

110 2.25 147-157 448-468 6-11 8-13 11.9-13.9 16-22 ......

3 147-157 430-450 6-11 7-12 7.6- 9.6 16-22 ......

LEGEND

DB -- Dry Bulb

HWG -- Hot Water Generator

-- -- No Heating Operation in This Temperature Range

Table 27 -- 50PSH, PSV, PSD042 Typical Unit Operating Pressures and Temperatures

FULL LOAD COOLING -- WITHOUT HWG ACTIVE FULL LOAD HEATING -- WITHOUT HWG ACTIVE

ENTERING WATER Water Water

WATER FLOW Suction Discharge Super- Sub- Air Temp Suction Discharge Super- Sub- Air Temp

TEMP (GPM/ton) Pressure Pressure heat cooling Temp Drop Pressure Pressure heat cooling Temp Rise

Rise Drop

(F) (psig) (psig) (F) (F) (F) (F) DB (psig) (psig) (F) (F) (F) (F) DB

1.5 114-124 170-190 27-32 10-15 17.2-19.2 17-23 69- 79 286-306 5-10 5-10 4.5- 6.5 16-22

30 2.25 113-123 150-170 27-32 9-14 12.7-14.7 17-23 72- 82 289-309 5-10 6-11 3.9- 5.9 17-23

3 113-123 131-151 27-32 7-12 8.2-10.2 17-23 75- 85 292-312 6-11 6-11 3.2- 5.2 18-24

1.5 130-140 226-246 10-15 6-11 17.8-19.8 20-26 100-110 315-335 7-12 6-11 9.0-11.0 22-28

50 2.25 129-139 208-228 10-15 5-10 13.3-15.3 20-26 105-115 322-342 8-13 6-11 7.0- 9.0 23-29

3 129-139 190-210 10-15 4- 9 8.8-10.8 20-26 110-120 330-350 10-15 7-12 5.0- 7.0 24-30

1.5 132-142 290-310 6-11 6-11 17.3-19.3 19-25 131-141 347-367 11-16 6-11 13.4-15.4 29-35

70 2.25 131-141 273-293 6-11 5-10 12.8-14.8 19-25 138-148 358-378 13-18 8-13 10.0-12.0 30-36

3 131-141 255-275 6-11 4- 9 8.3-10.3 19-25 145-155 369-389 16-21 9-14 6.9- 8.9 31-37

1.5 136-146 370-390 6-11 6-11 16.0-18.0 17-23 175-185 393-413 19-24 7-12 17.6-19.6 36-42

90 2.25 135-145 350-370 6-11 5-10 11.8-13.8 17-23 177-187 401-421 20-25 9-14 13.2-15.2 37-43

3 135-145 330-350 6-11 4- 9 7.6- 9.6 17-23 180-190 409-429 22-27 12-17 8.7-10.7 38-44

1.5 143-153 469-489 6-11 6-11 14.0-16.0 16-22 ......

110 2.25 142-152 448-468 6-11 5-10 11.0-13.0 16-22 ......

3 141-151 427-447 6-11 4- 9 7.0- 9.0 16-22 ......

LEGEND

DB -- Dry Bulb

HWG -- Hot Water Generator

-- -- No Heating Operation in This Temperature Range

38

Table 28 -- 50PSH, PSV, PSD048 Typical Unit Operating Pressures and Temperatures

ENTERING

WATER

TEMP

(F)

1.5

30 2.25

3

1.5

50 2.25

3

1.5

70 2.25

3

1.5

90 2.25

3

1.5

110 2.25

3

FULL LOAD COOLING -- WITHOUT HWG ACTIVE FULL LOAD HEATING -- WITHOUT HWG ACTIVE

WATER Water Water

FLOW Suction Discharge Super- Sub- Temp Air Temp Suction Discharge Super- Sub- Temp Air Temp

(GPM/ton) Pressure Pressure heat cooling Rise

Rise Drop Pressure Pressure heat cooling Drop (F) DB

(psig) (psig) (F) (F) (F) (F) DB (psig) (psig) (F) (F) (F)

108-118 180-200 27-32 12-17 19.8-21.8 19-25 65- 75 293-313 7-12 9-14 8.2-10.2 17-23

107-117 161-181 28-33 10-15 14.8-16.8 19-25 68- 78 297-217 8-13 9-14 6.2- 8.2 18-24

107-117 142-162 29-34 9-14 9.8-11.8 19-25 72- 82 301-321 9-14 9-14 4.2- 6.2 19-25

123-133 236-256 16-21 8-13 20.2-22.2 21-27 92-102 321-341 10-15 11-16 11.6-13.6 23-29

122-132 218-238 17-22 7-12 15.2-18.2 21-27 100-110 330-350 11-16 11-16 8.9-10.9 24-30

122-132 200-220 17-22 6-11 10.2-12.2 21-27 108-118 340-360 12-17 11-16 6.0- 8.0 26-32

130-140 305-325 10-15 8-13 20.0-22.0 20-26 122-132 353-373 12-17 11-16 15.0-17.0 29-35

129-139 285-305 11-16 6-11 15.0-17.0 20-26 133-143 365-385 14-19 11-16 11.5-13.5 31-37

129-139 265-285 11-16 5-10 10.0-12.0 20-26 144-154 378-398 16-21 11-16 8.0-10.0 33-39

133-143 390-410 8-13 8-13 19.0-21.0 19-25 166-176 397-417 16-21 9-14 19.5-21.5 37-43

132-142 368-388 9-14 6-11 14.0-16.0 19-25 173-183 407-727 18-23 9-14 14.7-16.7 38-44

132-142 345-365 9-14 5-10 9.0-11.0 19-25 181-191 417-437 19-24 10-15 9.9-11.9 40-46

141-151 497-517 6-11 8-13 18.0-20.0 18-24 ......

140-150 472-492 7-12 6-11 13.5-15.5 18-24 ......

140-150 447-467 8-13 5-10 8.7-10.7 18-24 ......

LEGEND

DB -- Dry Bulb

HWG -- Hot Water Generator

-- -- No Heating Operation in This Temperature Range

Table 29 -- 50PSH, PSV, PSD060 Typical Unit Operating Pressures and Temperatures

ENTERING

WATER

TEMP

(F)

1.5

30 2.25

3

1.5

50 2.25

3

1.5

70 2.25

3

1.5

90 2.25

3

1.5

110 2.25

3

FULL LOAD COOLING -- WITHOUT HWG ACTIVE FULL LOAD HEATING -- WITHOUT HWG ACTIVE

WATER Water Water

FLOW Suction Discharge Super- Sub- Air Temp Suction Discharge Super- Sub- Air Temp

(GPM/ton) Pressure Pressure heat cooling Temp Drop Pressure Pressure heat cooling Temp Rise

Rise Drop

(psig) (psig) (F) (F) (F) (F) DB (psig) (psig) (F) (F) (F) (F) DB

98-108 160-180 40-45 12-17 20.0-22.0 19-25 62- 72 276-296 6-11 6-11 8.0-10.0 17-23

97-107 149-169 41-46 12-17 14.3-16.3 19-25 66- 76 280-300 6-11 6-11 6.0- 8.0 18-24

96-106 137-157 42-48 11-16 8.5-10.5 20-26 70- 80 284-304 7-12 6-11 4.0- 6.0 19-25

118-128 225-245 36-41 11-16 21.2-23.2 19-25 88- 98 306-326 10-15 8-13 11.0-13.0 23-29

117-127 210-230 37-42 10-15 15.7-17.7 20-26 94-104 311-331 10-15 8-13 8.3-10.3 24-30

115-125 195-215 38-43 9-14 10.2-12.2 21-27 100-110 317-337 11-16 9-14 5.5- 7.5 25-31

135-145 300-320 12-17 9-14 20.3-22.3 21-27 112-122 333-353 12-17 10-15 14.0-16.0 28-34

133-143 285-305 14-19 8-13 15.0-17.0 21-27 122-132 342-362 14-19 10-15 10.5-12.5 30-36

132-142 270-290 16-21 7-12 10.0-12.0 22-28 130-140 351-371 15-20 11-16 7.3- 9.3 32-38

139-149 390-410 8-13 7-12 19.3-21.3 20-26 147-157 369-389 15-20 10-15 17.7-19.7 36-42

138-148 370-390 8-13 6-11 14.3-16.3 21-27 154-164 377-397 18-23 10-15 13.4-15.4 37-43

138-148 350-370 8-13 6-11 9.3-11.3 21-27 160-170 385-405 19-24 11-16 9.0-11.0 38-44

144-154 488-508 8-13 8-13 18.4-20.4 21-27 ......

143-153 468-488 7-12 6-11 13.6-15.6 21-27 ......

142-152 448-468 7-12 5-10 8.8-10.8 21-27 ......

LEGEND

DB -- Dry Bulb

HWG -- Hot Water Generator

-- -- No Heating Operation in This Temperature Range

Table 30 -- 50PSH, PSV, PSD070 Typical Unit Operating Pressures and Temperatures

ENTERING

WATER

TEMP

(F)

1.5

30 2.25

3

1.5

50 2.25

3

1.5

70 2.25

3

1.5

90 2.25

3

1.5

110 2.25

3

FULL LOAD COOLING -- WITHOUT HWG ACTIVE FULL LOAD HEATING -- WITHOUT HWG ACTIVE

WATER Water Water

FLOW Suction Discharge Super- Sub- AirTemp Suction Discharge Super- Sub- AirTemp

(GPM/ton) Pressure Pressure heat cooling Temp Drop Pressure Pressure heat cooling Temp Rise

Rise Drop

(psig) (psig) (F) (F) (F) (F) DB (psig) (psig) (F) (F) (F) (F) DB

110-120 177-197 36-41 15-20 20.2-22.2 21-27 61- 71 290-310 12-18 9-14 8.0-10.0 19-25

109-119 162-182 37-42 13-18 15.0-17.0 21-27 65- 75 292-312 12-18 10-15 6.0- 8.0 20-26

107-117 147-167 38-43 11-16 9.7-11.7 22-28 68- 78 296-316 12-18 10-15 4.0- 6.0 21-27

128-138 246-266 18-23 11-16 21.0-23.0 22-28 88- 98 320-340 11-17 13-18 11.7-13.7 26-32

128-138 228-248 19-24 9-14 15.6-17.6 23-29 96-106 330-350 11-17 11-16 9.0-11.0 27-33

127-137 210-230 20-25 6-11 10.2-12.2 24-30 105-115 338-358 11-17 9-14 6.0- 8.0 29-35

134-144 305-325 9-14 11-16 20.8-22.8 23-29 118-128 355-375 10-16 14-19 15.2-17.2 33-39

133-143 289-309 9-14 9-14 15.4-17.4 23-29 130-140 368-388 12-18 13-18 11.7-13.7 35-41

131-141 273-293 9-14 6-11 10.0-12.0 23-29 141-151 380-400 15-21 11-16 8.0-10.0 37-43

140-150 390-410 10-15 11-16 19.6-21.6 22-28 158-168 401-421 9-15 13-18 19.5-21.5 41-47

139-149 373-393 10-15 9-14 14.5-16.5 22-28 168-178 412-432 10-16 12-17 14.8-16.8 43-49

138-148 355-375 10-15 6-11 9.3-11.3 22-28 178-188 423-443 12-18 12-17 10.0-12.0 45-51

144-154 488-508 10-15 9-14 18.4-20.4 20-27 ......

143-153 468-488 10-15 6-11 13.6-15.6 20-27 ......

142-152 448-468 9-14 5-10 8.8-10.8 20-27 ......

LEGEND

DB -- Dry Bulb

HWG -- Hot Water Generator

-- -- No Heating Operation in This Temperature Range

39

Unit Start-Up with WSHP Open Controls

The WSHP Open is a multi-protocol (default BACnet*) con-

troller with extensive features, flexible options and powerful

capabilities. The unit comes from the factory pre-programmed

and needs minimal set up to function in a BAS (Building Auto-

mation System) system or provide additional capabilities to

Carrier's WSHP product line. Most settings on the controller

have factory defaults set for ease of installation. There are a

few settings that must be configured in the field and several set-

tings that can be adjusted if required by unique job conditions.

Refer to Appendix A -- WSHP Open Screen Configuration. In

order to configure the unit, a BACvie_ display is required. See

Fig. 35.

NOTE: If the WSHP Open control has lost its programming,

all display pixels will be displayed on the SPY sensor. See the

WSHP Third Party Integration Guide.

When the unit is OFF, the SPY sensor will indicate OFF.

When power is applied, the SPY sensor will indicate tempera-

rare in the space at 78 E

To start-up a unit with WSHP Open controls:

1. To plug in the BACvieu_' handheld display into a SPY

sensor, point the two ears on the connector up and tilt the

bottom of the plug toward you. Insert the plug up into the

SPY sensor while pushing the bottom of the plug away

from you.

2. BACview 6 should respond with "Establishing Connec-

tion." The Home screen will then appear on the display

showing operating mode and space temperature. Press

any button to continue.

See Appendix A -- WSHP Open Screen Configuration

for the hierarchal structure of the WSHP Open controller.

All functions of the controller can be set from the Home

screen.

3. When the Login is requested, type 1111 and push the OK

softkey. The Logout will then be displayed to indicate the

password was accepted.

4. To set the Clock if it is not already displayed:

a. Select System Settings from the Home screen, then

press Clockset.

b. Scroll to hour, minute and second using the arrow

keys. Use the number keypad to set actual time.

c. Scroll to day, month and year using arrow keys.

Use number keypad to set date.

5. To set Daylight Savings Time (DST):

a. Push the DST softkey. The display will indicate

02:00:060 which is equal to 2:00AM.

b. To program the beginning and end dates, scroll

down to the beginning month and press the enter

key. The softkeys (INCR and DECR) will activate

to increment the month in either direction, Jan,

Feb, March, etc.

c. Use number keys to select the day of month and

year.

d. Push the OK softkey to finalize the data.

6. To view configuration settings:

a. Select the Config softkey.

b. Select the Service Config softkey. Scroll through

the factory settings by using the up and down

arrow keys. See below for factory settings.

Only the following settings will need to be

checked.

• # of Fan Speeds -- This should be set to "1" for

units with PSC motors and set to "3" for units with

ECM motors.

• Compressor Stages -- This should be set to "1."

• Factory Dehumidification Reheat Coil -- This

should be set to "none" unless the modulating hot

water reheat option is supplied in the unit, then set

to "installed."

• The condenser water limit needs to be verified

depending on design parameters and application,

whether geothermal or boiler/tower.

7. To view unit configuration settings:

a. Select the Unit Configuration softkey, then select

Unit.

b.

8.

Scroll through the unit settings by using the up and

down arrow keys. Unit settings include:

• Fan Mode: Default Continuous

• Fan Delay:

• Minimum SAT Cooling: Default 50 F

• Maximum SAT Heating: Default 110 F

• Filter Service Alarm: Must be set from 0 to 9999 hr

set local schedules:To

a. Select the Schedule softkey from the Configuration

screen, then press enter.

b. Select Weekly, then press enter (7 schedules

available).

c. Select day and press enter.

d. Press enter again and select ADD or DEL (DECR

or INCR) set schedule.

e. Enter ON/OFF time, then press continue.

Fig. 35 -- BACvievv sDisplay Interface

*Sponsored by ASHRAE (AmericanSociety of Heating, Refrigerat-

ingand AirConditioning Engineers).

40

9.

10.

f. Press OK to apply and save to a particular day of

the week.

g- Continue to add the same or different schedule spe-

cific days of the week.

To add exceptions to the schedule:

i. Press Add softkey.

ii. Select exception type from following:

• Date

• Date Range

• Week-N-Day

• Calender Reference

Go back to Home Screen.

Remove BACvieu_ cable from SPT sensor by reversing

the process in Step 1.

11. Perform system test.

Flow Regulation E Flow regulation can be accom-

plished by two methods. Most water control valves have a flow

adjustment built into the valve. By measuring the pressure drop

through the unit heat exchanger, the flow rate can be deter-

mined. See Table 31. Adjust the water control valve until the

flow of 1.5 to 2gpm is achieved. Since the pressure constantly

varies, two pressure gages may be needed in some

applications.

Table 31 -- 50PSH, PSV, PSD Coaxial

Water Pressure Drop

50PSH, PS_ PSD WATER WATER TEMPERATURE (F)

UNIT SIZE FLOW 3OF IS0F I 70F I 90F

(GPM) Pressure Drop (psi)

1.0 0.3 0.3 0.2 0.2

006 1.5 1.6 1.4 1.2 1.0

2.0 3.0 2.6 2.2 1.8

1.4 0.8 0.7 0.6 0.6

009 2.1 1.5 1.4 1.2 1.1

2.8 2.7 2.4 2.2 1.9

1.8 0.6 0.5 0.4 0.3

012 2.6 2.1 1.9 1.6 1.4

3.5 3.8 3.4 3.0 2.6

2.8 0.7 0.5 0.3 0.2

018 4.1 2.1 1.7 1.4 1.1

5.5 3.5 2.8 2.4 2.0

4.0 1.5 1.3 1.1 1.0

024 6.0 3.1 2.6 2.3 2.1

8.0 5.1 4.3 3.8 3.4

4.0 1.5 1.3 1.1 1.0

030 6.0 3.1 2.6 2.3 2.1

8.0 5.1 4.3 3.8 3.4

4.5 1.7 1.3 1.1 0.9

036 6.8 3.3 3.1 2.9 2.6

9.0 5.7 5.2 4.8 4.4

5.5 1.1 0.9 0.8 0.7

042 8.3 2.2 2.1 2.0 1.8

11.0 3.9 3.6 3.2 3.1

6.0 1.3 1.1 1.0 0.9

048 9.0 2.6 2.5 2.3 2.2

12.0 4.5 4.2 3.8 3.5

7.5 0.6 0.4 0.3 0.2

060 11.3 2.3 2.1 2.0 1.8

15.0 4.8 4.3 3.9 3.5

8.3 2.4 2.0 1.7 1.6

070 12.4 5.2 4.5 4.0 3.8

16.5 8.0 7.0 6.3 6.0

An alternative method is to install a flow control device.

These devices are typically an orifice of plastic material de-

signed to allow a specified flow rate that are mounted on the

outlet of the water control valve. Occasionally these valves

produce a velocity noise that can be reduced by applying some

back pressure. To accomplish this, slightly close the leaving

isolation valve of the well water setup.

To avoid possible injury or death due to electrical shock,

open the power supply disconnect switch and secure it in

an open position before flushing system.

FIu sh ing EOnce the piping is complete, units require final

purging and loop charging. A flush cart pump of at least 1.5 hp

is needed to achieve adequate flow velocity in the loop to purge

air and dirt particles from the loop. Flush the loop in both direc-

tions with a high volume of water at a high velocity. Follow the

steps below to properly flush the loop:

1. Verify power is off.

2. Fill loop with water from hose through flush cart before

using flush cart pump to ensure an even fill. Do not allow

the water level in the flush cart tank to drop below the

pump inlet line in order to prevent air from filling the line.

3. Maintain a fluid level in the tank above the return tee in

order to avoid air entering back into the fluid.

4. Shutting off the return valve that connects into the flush

cart reservoir will allow 50 psig surges to help purge air

pockets. This maintains the pump at 50 psig.

5. To purge, keep the pump at 50 psig until maximum

pumping pressure is reached.

6. Open the return valve to send a pressure surge through

the loop to purge any air pockets in the piping system.

7. A noticeable drop in fluid level will be seen in the flush

cart tank. This is the only indication of air in the loop.

NOTE: If air is purged from the system while using a

10 in. PVC flush tank, the level drop will only be 1 to

2 in. since liquids are incompressible. If the level drops

more than this, flushing should continue since air is still

being compressed in the loop. If level is less than 1 to

2 in., reverse the flow.

8. Repeat this procedure until all air is purged.

9. Restore power.

Antifreeze may be added before, during, or after the flush-

ing process. However, depending on when it is added in the

process, it can be wasted. Refer to the Antifreeze section for

more detail.

Loop static pressure will fluctuate with the seasons. Pres-

sures will be higher in the winter months than during the warm-

er months. This fluctuation is normal and should be considered

when charging the system initially. Run the unit in either

heating or cooling for several minutes to condition the loop to a

homogenous temperature.

When complete, perform a final flush and pressurize the

loop to a static pressure of 40 to 50 psig for winter months or

15 to 20 psig for smmner months.

After pressurization, be sure to remove the plug from the

end of the loop pump motor(s) to allow trapped air to be

discharged and to ensure the motor housing has been flooded.

Be sure the loop flow center provides adequate flow through

the unit by checking pressure drop across the heat exchanger.

Compare the results to the data in Table 31.

Antifreeze- In areas where entering loop temperatures

drop below 40 F or where piping will be routed through areas

subject to freezing, antifreeze is needed.

Alcohols and glycols are colranonly used as antifreeze

agents. Freeze protection should be maintained to 15 F below

the lowest expected entering loop temperature. For example, if

the lowest expected entering loop temperature is 30 F, the leav-

ing loop temperature would be 22 to 25 E Therefore, the freeze

protection should be at 15 F (30 F - 15 F = 15 F).

41

IMPORTANT:All alcoholsshouldbepre-mixedand

pumpedfromareservoiroutsideof thebuildingor

introducedunderwaterleveltopreventfuming.

Calculatethetotalvolumeoffluidinthepipingsystem.See

Table32.UsethepercentagebyvolumeinTable33todeter-

minetheamountofantifreezetouse.Antifreezeconcentration

shouldbecheckedfromawell-mixedsampleusingahydrom-

etertomeasurespecificgravity.

FREEZEPROTECTIONSELECTION-- The 30F FP1

factorysetting(water)shouldbeusedtoavoidfreezedamage

totheunit.

Onceantifreezeisselected,theJW3jumper(FP1)should

beclippedonthecontroltoselectthelowtemperature(anti-

freeze13F)setpointtoavoidnuisancefaults.

Table 32 -- Approximate Fluid Volume (gal.)

per 100 Ft of Pipe

PIPE DIAMETER (in.)

Copper

Rubber Hose

Polyethylene

1

1.25

1.5

1

3/4 IPS SDR11

1 IPS SDR11

11/4 IPS SDR11

1/2 IPS SDR11

2 IPS SDR11

11/4 IPS SCH40

11/2 IPS SCH40

2 IPS SCH40

VOLUME (gal.)

4.1

6.4

9.2

3.9

2.8

4.5

8.0

10.9

18.0

8.3

10.9

17.0

LEGEND

IPS -- Internal Pipe Size

SCH -- Schedule

SDR -- Standard Dimensional Ratio

NOTE: Volume of heat exchanger is approximately 1.0 gallon.

Table 33 -- Antifreeze Percentages by Volume

ANTIFREEZE

Methanol (%)

100% USP Food Grade

Propylene Glycol (%)

Ethanol (%)

MINIMUM TEMPERATURE FOR

FREEZE PROTECTION (F)

10 15 20 25

25 21 16 10

38 30 22 15

29 25 20 14

Cooling Tower/Boiler Systems -- These systems

typically use a common loop temperature maintained at 60 to

95 F. Carrier recommends using a closed circuit evaporative

cooling tower with a secondary heat exchanger between the

tower and the water loop. If an open type cooling tower is used

continuously, chemical treatment and filtering will be necessary.

Ground Coupled, Closed Loop and Plateframe

Heat Exchanger Well Systems -- Thesesystemsal-

low water temperatures from 30 to ll0 F. The external loop

field is divided up into 2 in. polyethylene supply and return

lines. Each line has valves connected in such a way that upon

system start-up, each line can be isolated for flushing using

only the system pumps. Locate air separation in the piping sys-

tem prior to the fluid re-entering the loop field.

OPERATION

Power Up Mode _ The unit will not operate until all the

inputs, terminals and safety controls are checked for normal

operation.

NOTE: The compressor will have a 5-minute anti-short cycle

upon power up.

Units with Aquazone TM Complete C Control

STANDBY- Y and W terminals are not active in Standby

mode, however the O and G terminals may be active, depend-

ing on the application. The compressor will be off.

COOLING -- Y and O terminals are active in Cooling mode.

After power up, the first call to the compressor will initiate a

5 to 80 second random start delay and a 5-minute anti-short

cycle protection time delay. After both delays are complete, the

compressor is energized.

NOTE: On all subsequent compressor calls the random start

delay is omitted.

HEATING STAGE 1--Terminal Y is active in heating

stage 1. After power up, the first call to the compressor will

initiate a 5 to 80 second random start delay and a 5-minute

anti-short cycle protection time delay. After both delays are

complete, the compressor is energized.

NOTE: On all subsequent compressor calls the random start

delay is omitted.

HEATING STAGE 2 -- To enter Stage 2 mode, terminal W is

active (Y is already active). Also, the G terminal must be

active or the W terminal is disregarded. The compressor relay

will remain on and EH1 is ilmnediately turned on. EH2 will

turn on after 10 minutes of continual stage 2 demand.

NOTE: EH2 will not turn on (or if on, will turn ot_ ifFP1 tem-

perature is greater than 45 F and FP2 is greater than 110 E

LOCKOUT MODE- The status LED will flash fast in

Lockout mode and the compressor relay will be turned off

immediately. Lockout mode can be "soft" reset via the Y input

or can be "hard" reset via the disconnect. The last fault causing

the lockout is stored in memory and can be viewed by entering

test mode.

LOCKOUT WITH EMERGENCY HEAT -- While in Lock-

out mode, if W becomes active, then Emergency Heat mode

will occur.

EMERGENCY HEAT -- In Emergency Heat mode, terminal

W is active while terminal Y is not. Terminal G must be active

or the W terminal is disregarded. EH1 is ilmnediately turned

on. EH2 will turn on after 5 minutes of continual emergency

heat demand.

Units with Aquazone Deluxe D Control

EXTENDED COMPRESSOR OPERATION MONITOR --

If the compressor has been on for 4 continuous hours the con-

trol will automatically turn off the compressor relay and wait

the short cycle time protection time. All appropriate safeties,

including the low-pressure switch, will be monitored. If all

operations are normal and the compressor demand is still

present, the control will turn the compressor back on.

STANDBY/FAN ONLY -- The compressor will be off. The

Fan Enable, Fan Speed, and reversing valve (RV) relays will be

on if inputs are present. If there is a Fan 1 demand, the Fan

Enable will ilmnediately turn on. If there is a Fan 2 demand,

the Fan Enable and Fan Speed will hmnediately turn on.

NOTE: DIP switch 5 on S1 does not have an effect upon Fan 1

and Fan 2 outputs.

HEATING STAGE 1 -- In Heating Stage 1 mode, the Fan

Enable and Compressor relays are turned on ilmnediately.

Once the demand is removed, the relays are turned off and the

control reverts to Standby mode. If there is a master/slave or

dual compressor application, all compressor relays and related

functions will operate per their associated DIP switch 2 setting

on S1.

HEATING STAGE 2- In Heating Stage 2 mode, the Fan

Enable and Compressor relays are remain on. The Fan Speed

relay is turned on ilmnediately and turned off immediately

once the demand is removed. The control reverts to Heating

Stage 1 mode. If there is a master/slave or dual compressor

42

application,allcompressorrelaysandrelatedfunctionswill

operatepertheirassociatedDIPswitch2settingonS1.

HEATINGSTAGE3- In HeatingStage3 mode,theFan

Enable,FanSpeedandCompressorrelaysremainon.TheEH1

outputisturnedonhmnediately.WithcontinuingHeatStage3

demand,EH2willturnonafter10minutes.EH1andEH2are

turnedoffilranediatelywhentheHeatingStage3demandisre-

moved.ThecontrolrevertstoHeatingStage2mode.

TheoutputsignalEH2willbeoffifFP1isgreaterthan45F

ANDFP2(whenshorted)isgreaterthan110FduringHeating

Stage3 mode.This conditionwill havea 30-second

recognitiontime.Also,duringHeatingStage3 mode,EH1,

EH2,FanEnable,andFanSpeedwillbeONif Ginputisnot

active.

EMERGENCYHEAT-- InEmergencyHeatmode,theFan

EnableandFanSpeedrelaysareturnedon.TheEH1outputis

turnedonilmnediately.WithcontinuingEmergencyHeatde-

man&EH2willturnonafter5minutes.FanEnableandFan

Speedrelaysareturnedoffaftera60-seconddelay.Thecontrol

revertstoStandbymode.

OutputEH1,EH2,FanEnable,andFanSpeedwillbeONif

theGinputisnotactiveduringEmergencyHeatmode.

COOLINGSTAGE1-- In CoolingStage1mode,theFan

Enable,compressorandRVrelaysareturnedonilranediately.

If configuredasstage2(DIPswitchsettoOFF)thenthecom-

pressorandfanwillnotturnonuntilthereisastage2demand.

The Fan Enable and compressor relays are turned off ilranedi-

ately when the Cooling Stage 1 demand is removed. The con-

trol reverts to Standby mode. The RV relay remains on until

there is a heating demand. If there is a master/slave or dual

compressor application, all compressor relays and related func-

tions will track with their associated DIP switch 2 on S1.

COOLING STAGE 2- In Cooling Stage 2 mode, the Fan

Enable, compressor and RV relays remain on. The Fan Speed

relay is turned on ilranediately and turned off ilmnediately

once the Cooling Stage 2 demand is removed. The control

reverts to Cooling Stage 1 mode. If there is a master/slave or

dual compressor application, all compressor relays and related

functions will track with their associated DIP switch 2 on S1.

NIGHT LOW LIMIT (NLL) STAGED HEAT1NG -- In NLL

staged Heating mode, the override (OVR) input becomes ac-

tive and is recognized as a call for heating and the control will

ilranediately go into a Heating Stage 1 mode. With an addition-

al 30 minutes of NLL demand, the control will go into Heating

Stage 2 mode. With another additional 30 minutes of NLL

demand, the control will go into Heating Stage 3 mode.

Units with HWR Option

FAN ONLY--A (G) call from the thermostat to the (G)

terminal of the Deluxe D control board will bring the unit

on in fan only mode.

COOLING STAGE 1--A simultaneous call from (G),

(Y1), and (O) to the (G), (Y1), (O/W2) terminals of the

Deluxe D control board will bring the unit on in Cooling

Stage 1.

COOLING STAGE2--A simultaneous call from (G),

(Y1), (Y2), and (O) to the (G), (Y1), (Y2), and (O/W2) ter-

minals of the Deluxe D control board will bring the unit on

in Cooling Stage 2. When the call is satisfied at the thermo-

stat the unit will continue to mn in Cooling Stage 1 until the

Cooling Stage 1 call is removed or satisfied, shutting down

the unit.

NOTE: Not all units have two-stage cooling functionality.

HEAT1NG STAGE 1--A simultaneous call from (G) and

(Y1) to the (G) and (Y1) terminals of the Deluxe D control

board will bring the unit on in Heating Stage 1.

HEAT1NG STAGE 2 --A simultaneous call from (G), (Y1),

and (Y2) to the (G), (Y1), and (Y2) terminals of the Deluxe

D control board will bring the unit on in Heating Stage 2.

When the call is satisfied at the thermostat the unit will con-

tinue to run in Heating Stage 1 until the call is removed or

satisfied, shutting down the unit.

NOTE: Not all units have two-stage heating functionality.

REHEAT MODE -- A call from the humidistat/dehumidis-

tat to the (H) terminal of the Deluxe D control board will

bring the unit on in Reheat mode if there is no call for cool-

ing at the thermostat. When the humidistat/dehumidistat call

is removed or satisfied the unit will shut down.

NOTE: Cooling always overrides Reheat mode. In the

Cooling mode, the unit cools and dehumidifies. If the cool-

ing thermostat is satisfied but there is still a call for dehu-

midification, the unit will continue to operate in Reheat

mode.

Units with WSHP Open Multiple Protocol E

The WSHP Open multi-protocol controller will control me-

chanical cooling, heating and waterside economizer outputs

based on its own space temperature input and set points. An

optional CO2 IAQ (indoor air quality) sensor mounted in the

space can maximize the occupant comfort. The WSHP Open

controller has its own hardware clock that is automatically set

when the heat pump software is downloaded to the board. Oc-

cupancy types are described in the scheduling section below.

The following sections describe the functionality of the WSHP

Open multi-protocol controller. All point objects referred to in

this sequence of operation will be referenced to the objects as

viewed in the BACview 6handheld user interface.

SCHEDULING- Scheduling is used to start!stop the unit

based on a time period to control the space temperature to spec-

ified occupied heating and cooling set points. The controller is

defaulted to control by occupied set points all the time, until ei-

ther a time schedule is configured with BACview 6, Field Assis-

tant, i-Vu _R:Open, or a third party control system to enable/dis-

able the BAS (Building Automation System) on!offpoint. The

local time and date must be set for these functions to operate

properly. The occupancy source can be changed to one of the

following:

Occupancy Schedules -- The controller will be occupied 24/7

until a time schedule has been configured using either Field

Assistant, i-Vu Open, BACview 6or a third party control system

to enable/disable the BAS on!off point. The BAS point can be

disabled by going to Config, then Unit, then Occupancy Sched-

ules and changing the point from enable to disable then click-

ing OK.

NOTE: This point must be enabled in order for the i-Vu Open,

Field Assistant, or BACview 6 control system to assign a time

schedule to the controller.

Schedule schedule -- The unit will operate according to the

schedule configured and stored in the unit. The schedule is

accessible via the BACview 6 Handheld tool, i-Vu Open, or

Field Assistant control system. The daily schedule consists of a

start/stop time (standard or 24-hour mode) and seven days of

the week, starting with Monday and ending on Sunday. To

enter a daily schedule, navigate to Config, then Sched, then

enter BACview 6 Admin Password (1111), then go to

schedule schedule. From here, enter either a Weekly or Excep-

tion schedule for the unit.

Occupancy Input Contact -- The WSHP Open controller has

the capability to use an external dry contact closure to deter-

mine the occupancy status of the unit. The Occupancy Sched-

ules will need to be disabled in order to utilize the occupancy

contact input.

NOTE: Scheduling can only be controlled from one source.

BAS (Building Automation System) On/Off -- A BAS

system that supports network scheduling can control the unit

through a network colmnunication and the BAS scheduling

function once the Occupancy Schedules have been disabled.

43

NOTE:Schedulingcaneitherbecontrolledviatheunitorthe

BAS,butnotboth.

INDOORFAN-- Theindoorfanwilloperateinanyoneof

threemodesdependingontheuserconfigurationselected.

FanmodecanbeselectedasAuto,Continuous,orAlways

On.InAutomode,thefanisinintermittentoperationduring

bothoccupiedandunoccupiedperiods.Continuousfanmode

isintermittentduringunoccupiedperiodsandcontinuousdur-

ingoccupiedperiods.AlwaysOnmodeoperatesthefancon-

tinuouslyduringbothoccupiedandunoccupiedperiods.Inthe

defaultmode,Continuous,thefanwillbeturnedonwhenever

anyoneofthefollowingistrue:

• Theunitisinoccupiedmodeasdeterminedbyitsoccu-

pancystatus.

• Thereisademandforcoolingorheatingintheunoccu-

piedmode.

• Thereisacallfordehumidification(optional).

Whenpowerisreappliedafterapoweroutage,therewillbe

aconfiguredtimedelayof5to600secondsbeforestartingthe

fan.TherearealsoconfiguredfandelaysforFanOnandFan

Off.TheFanOndelaydefinesthedelaytime(0to30seconds;

default10)beforethefanbeginsto operateafterheatingor

coolingis startedwhiletheFanOffdelaydefinesthedelay

time(0to180seconds;default45)thefanwillcontinuetoop-

erateafterheatingorcoolingisstopped.Thefanwillcontinue

torunaslongasthecompressors,heatingstages,orthedehu-

midificationrelaysareon.If theSPTfailurealarmorconden-

sateoverflowalarmisactive;thefanwillbeshutdownilrnne-

diatelyregardlessofoccupancystateordemand.

Automatic Fan Speed Control -- The WSHP Open controller

is capable of controlling up to three fan speeds using the ECM

(electronically colmnutated motor). The motor will operate at

the lowest speed possible to provide quiet and efficient fan op-

eration with the best latent capability. The motor will increase

speed if additional cooling or heating is required to obtain the

desired space temperature set point. The control increases the

motor's speed as the space temperature rises above the cooling

or below the heating set point. The amount of space tempera-

rare increase above or below the set point required to increase

the fan speed is user configurable in the set point. Also, the

control will increase the fan speed as the supply-air tempera-

rare approaches the configured minhnum or maximum limits.

Fan Speed Control (During Heating) -- Whenever heat is re-

quired and active, the control continuously monitors the sup-

ply-mr temperature to verify it does not rise above the config-

ured maximum heating SAT limit (110 F default). As the SAT

approaches this value, the control will increase the fan speed as

required to ensure the SAT will remain within the limit. This

feature provides the most quiet and efficient operation by oper-

ating the fan at the lowest speed possible.

Fan Speed Control (During Cooling) -- Whenever mechani-

cal cooling is required and active, the control continuously

monitors the supply-air temperature to verify it does not fall be-

low the configured minimum cooling SAT limit (50 F default).

As the SAT approaches this value, the control will increase the

fan speed as required to ensure the SAT will remain within the

limit. The fan will operate at lowest speed to maximize latent

capacity during cooling.

COOLING -- The WSHP Open controller will operate one or

two stages of compression to maintain the desired cooling set

point. The compressor outputs are controlled by the PI (propor-

tional-integral) cooling loop and cooling stages capacity algo-

rithin. They will be used to calculate the desired number of

stages needed to satisfy the space by comparing the space tem-

perature (SPT) to the appropriate cooling set point. The water

side economizer, if applicable, will be used for first stage cool-

ing in addition to the compressor(s). The following conditions

must be true in order for the cooling algorithin to run:

• Cooling is set to Enable.

• Heating mode is not active and the compressor time

guard has expired.

• Condensate overflow input is normal.

• If occupied, the SPT is greater than the occupied cooling

set point.

• Space temperature reading is valid.

• If unoccupied, the SPT is greater than the unoccupied

cooling set point.

• If economizer cooling is available and active and the

economizer alone is insufficient to provide enough cool-

ing.

• OAT (if available) is greater than the cooling lockout

temperature.

If all the above conditions are met, the compressors will be

energized as required, otherwise they will be deenergized. If

cooling is active and should the SAT approach the lninimum

SAT limit, the fan will be indexed to the next higher speed.

Should this be insufficient and if the SAT falls further (equal to

the minimum SAT lhnit), the fan will be indexed to the maxi-

mum speed. If the SAT continues to fall 5 c F below the mini-

1hum SAT lhnit, all cooling stages will be disabled.

During Cooling mode, the reversing valve output will be

held in the cooling position (either B or O type as configured)

even after the compressor is stopped. The valve will not switch

position until the Heating mode is required.

The configuration screens contain the minimum SAT

parameter as well as cooling lockout based on outdoor-air

temperature (OAT) Both can be adjusted to meet various

specifications.

There is a 5-minute offtime for the compressor as well as a

5-minute time delay when staging up to allow the SAT to

achieve a stable temperature before energizing a second stage

of capacity. Likewise, a 45-second delay is used when staging

down.

After a compressor is staged off, it may be restarted again

after a normal time-guard period of 5 minutes and if the sup-

ply-mr temperature has increased above the minimum supply-

air temperature limit.

The WSHP Open controller provides a status input to moni-

tor the compressor operation. The stares is monitored to deter-

mine if the compressor status matches the colrnnanded state.

This input is used to determine if a refrigerant safety switch or

other safety device has tripped and caused the compressor to

stop operating normally. If this should occur, an alarm will be

generated to indicate the faulted compressor condition.

HEATING -- The WSHP Open controller will operate one or

two stages of compression to maintain the desired heating set

point. The compressor outputs are controlled by the heating PI

(proportional-integral) loop and heating stages capacity algo-

rithin. They will be used to calculate the desired number of

stages needed to satisfy the space by comparing the space tem-

perature (SPT) to the appropriate heating set point. The follow-

ing conditions must be true in order for the heating algorithin to

run:

• Heating is set to Enable.

• Cooling mode is not active and the compressor time

guard has expired.

• Condensate overflow input is normal.

• If occupied, the SPT is less than the occupied heating set

point.

• Space temperature reading is valid.

• If unoccupied, the SPT is less than the unoccupied heat-

ing set point.

• OAT (if available) is less than the heating lockout

temperature.

If all the above conditions are met, the heating outputs will

be energized as required, otherwise they will be deenergized. If

the heating is active and should the SAT approach the maxi-

1hum SAT lhnit, the fan will be indexed to the next higher

44

speed.Shouldthisbeinsufficient,andtheSATrisesfurther

reachingthemaximumheatingSATlimit,thefanwill be

indexedtothemaxhnumspeed.If theSATstillcontinuesto

rise5cFabovethemaximumlimit,allheatingstageswillbe

disabled.

DuringHeatingmode,thereversingvalveoutputwill be

heldintheheatingposition(eitherBorOtypeasconfigured)

evenafterthecompressorisstopped.Thevalvewillnotswitch

positionuntiltheCoolingmodeisrequired.

TheconfigurationscreenscontainthemaximumSAT

parameteraswellasheatinglockoutbasedonoutdoor-air

temperature(OAT);bothcanbeadjustedto meetvarious

specifications.

Thereisa5-minuteoffthneforthecompressoraswellasa

5-minutetimedelaywhenstagingupto allowtheSATto

achieveastabletemperaturebeforeenergizingasecondstage

ofcapacity.Likewise,a45-seconddelayisusedwhenstaging

down.

After a compressor is staged off, it may be restarted again

after a normal time-guard period of 5 minutes and if the sup-

ply-mr temperature has fallen below the maximum supply air

temperature limit.

The WSHP Open controller provides a status input to moni-

tor the compressor operation. The stares is monitored to deter-

mine if the compressor status matches the colmnanded state.

This input is used to determine if a refrigerant safety switch or

other safety device has tripped and caused the compressor to

stop operating normally. If this should occur, an alarm will be

generated to indicate the faulted compressor condition. Also, if

auxiliary heat is available (see below), the auxiliary heat will

operate to replace the reverse cycle heating and maintain the

space temperature as required.

AUXILIARY HEAT -- The WSHP Open controller can con-

trol a two-position, modulating water, or steam valve connect-

ed to a coil on the discharge side of the unit and supplied by a

boiler or a single-stage ducted electric heater in order to main-

tain the desired heating set point. Should the compressor capac-

ity be insufficient or a compressor failure occurs, the auxiliary

heat will be used. Unless the compressor fails, the auxiliary

heat will only operate to supplement the heat provided by the

compressor if the space temperature falls more than one degree

below the desired heating set point (the amount is config-

urable). The heat will be controlled so the SAT will not exceed

the maximum heating SAT lhnit.

Auxiliary Modulating Hot Water/Steam Heating Reheat

-- The control can modulate a hot water or steam valve con-

nected to a coil on the discharge side of the unit and supplied

by a boiler in order to maintain the desired heating set point

should the compressor capacity be insufficient or a compressor

failure occurs. Unless a compressor fault condition exists, the

valve will only operate to supplement the heat provided by the

compressor if the space temperature falls more than one degree

below the desired heating set point. The valve will be con-

trolled so the SAT will not exceed the maximum heating SAT

limit.

Two-Position Hot Water/Steam Heating Reheat -- The con-

trol can operate a two-position, NO or NC, hot water or steam

valve connected to a coil on the discharge side of the unit and

supplied by a boiler in order to maintain the desired heating set

point should the compressor capacity be insufficient or a com-

pressor failure occurs. Unless a compressor fault condition ex-

ists, the valve will only open to supplement the heat provided

by the compressor if the space temperature falls more than one

degree below the desired heating set point. The valve will be

controlled so the SAT will not exceed the maximum heating

SAT lhnit. The heat stage will also be subject to a 2-minute

minimum OFF time to prevent excessive valve cycling.

Single Stage Electric Auxiliary_ Heat -- The control can op-

erate a field-installed single stage of electric heat installed on

the discharge side of the unit in order to maintain the desired

heating set point should the compressor capacity be insufficient

or a compressor failure occurs. Unless a compressor fault con-

dition exists, the heat stage will only operate to supplement the

heat provided by the compressor if the space temperature falls

more than one degree below the desired heating set point. The

heat stage will be controlled so the SAT will not exceed the

maximum heating SAT limit. The heat stage will also be sub-

ject to a 2-minute minimum OFF time to prevent excessive

cycling.

INDOOR AIR QUALITY (IAQ) AND DEMAND CON-

TROLLED VENTILATION (DCV) -- If the optional in-

door air quality sensor is installed, the WSHP Open controller

can maintain indoor air quality via a modulating OA damper

providing demand controlled ventilation. The control operates

the modulating OA damper during occupied periods. The con-

trol monitors the CO2 level and compares it to the configured

set points, adjusting the ventilation rate as required. The control

provides proportional ventilation to meet the requirements of

ASHRAE (American Society of Heating, Refrigerating and

Air Conditioning Engineers) specifications by providing a base

ventilation rate and then increasing the rate as the CO2 level in-

creases. The control will begin to proportionally increase venti-

lation when the CO 2level rises above the start ventilation set

point and will reach the full ventilation rate when the CO2 level

is at or above the maxhnum set point. A user-configurable min-

imum damper position ensures that proper base ventilation is

delivered when occupants are not present. The IAQ configura-

tions can be accessed through the configuration screen. The

following conditions must be true in order for this algorithn to

run:

• Damper control is configured for DCV.

• The unit is in an occupied mode.

• The IAQ sensor reading is greater than the DCV start

control set point.

The control has four user adjustable set points: DCV start

control set point, DCV maximum control set point, minimum

damper position, and DCV maximum damper position.

Two-Position OA Damper -- The control can be configured

to operate a ventilation damper in a two-position ventilation

mode to provide the minimum ventilation requirements during

occupied periods.

DEHUMIDIFCATION- The WSHP Open controller will

provide occupied and unoccupied dehumidification only on

units that are equipped with the modulating hot water reheat

(HWR) option. This function requires an accessory space rela-

tive humidity sensor. When using a relative humidity sensor to

control dehumidification during occupied or unoccupied times,

the dehumidification set points are used accordingly. When the

indoor relative humidity becomes greater than the dehumidifi-

cation set point, a dehumidification demand will be acknowl-

edged. Once acknowledged, the dehumidification output will

be energized, bringing on the supply fan (medium speed), me-

chanical cooling, and the integral hot water reheat coil. The

controls will engage Cooling mode and waste heat from the

compressor cooling cycle will be returned to the reheat coil si-

multaneously, meaning that the reversing valve is causing the

compressor to operate in the Cooling mode. During Cooling

mode, the unit cools, dehumidifies, and disables the HWR coil;

however, once the call for cooling has been satisfied and there

is still a call for dehumidification, the unit will continue to op-

erate using the Reheat mode and HWR coil.

WATERSIDE ECONOMIZER -- The WSHP Open control-

ler has the capability of providing modulating or two-position

water economizer operation (for a field-installed economizer

coil mounted to the entering air side of the unit and connected

to the condenser water loop) in order to provide free cooling

(or preheating) when water conditions are optimal. Water econ-

omizer settings can be accessed through the equipment status

45

screen.Thefollowingconditionsmustbetrueforeconomizer

operation:

• SATreadingisavailable.

• LWTreadingisavailable.

• If occupied,theSPTisgreaterthantheoccupiedcooling

setpointorlessthantheoccupiedheatingsetpointand

thecondenserwaterissuitable.

• Spacetemperaturereadingisvalid.

• If unoccupied,theSPTis greaterthantheunoccupied

coolingsetpointorlessthantheunoccupiedheatingset

pointandthecondenserwaterissuitable.

Modulating Water Economizer Control -- The control has

the capability to modulate a water valve to control condenser

water flowing through a coil on the entering air side of the unit.

(_oling -- The purpose is to provide an economizer cooling

function by using the water loop when the entering water loop

temperature is suitable (at least 5 c F below space temperature).

If the water loop conditions are suitable, then the valve will

modulate open as required to maintain a supply-air temperature

that meets the load conditions. Should the economizer coil ca-

pacity alone be insufficient for a period greater than 5 minutes,

or should a high humidity condition occur, then the compressor

will also be started to satisfy the load. Should the SAT ap-

proach the minimum cooling SAT limit, the economizer valve

will modulate closed during compressor operation.

Heating- Additionally, the control will modulate the water

valve should the entering water loop temperature be suitable

for heating (at least 5c F above space temperature) and heat is

required. The valve will be controlled in a similar manner ex-

cept to satisfy the heating requirement. Should the economizer

coil capacity alone be insufficient to satisfy the space load con-

ditions for more than 5 minutes, then the compressor will be

started to satisfy the load. Should the SAT approach the maxi-

mum heating SAT lhnit, the economizer valve will modulate

closed during compressor operation.

Two-Position Water Economizer Control -- The control has

the capability to control a NO or NC, two-position water valve

to control condenser water flow through a coil on the entering

air side of the unit.

(_oling -- The purpose is to provide a cooling economizer

function directly from the condenser water loop when the en-

tering water loop temperature is suitable (at least 5c F below

space telnperature). If the optional coil is provided and the wa-

ter loop conditions are suitable, then the valve will open to pro-

vide cooling to the space when required. Should the capacity

be insufficient for a period greater than 5 minutes, or should a

high humidity condition occur, then the compressor will be

started to satisfy the load. Should the SAT reach the minimum

cooling SAT limit, the economizer valve will close during

compressor operation.

Heating -- Additionally, the economizer control will open the

water valve should the entering water loop temperature be suit-

able for heating (at least 5c F above space temperature) and

heat is required. The valve will be controlled in a similar man-

ner except to satisfy the heating requirement. Should the coil

capacity be insufficient to satisfy the space load for more than

5 minutes, then the compressor will be started to satisfy the

load. Should the SAT reach the maximum heating SAT limit,

the economizer valve will close during compressor operation.

DEMAND LIMIT- The WSHP Open controller has the

ability to accept three levels of demand lhnit from the network.

In response to a demand lhnit, the unit will decrease its heating

set point and increase its cooling set point to widen the range in

order to ilmnediately lower the electrical demand. The amount

of temperature adjustment in response is user adjustable for

both heating and cooling and for each demand level. The re-

sponse to a particular demand level may also be set to zero.

CONDENSER WATER LINKAGE -- The control pro-

vides optimized water loop operation using an universal

controller (UC) open loop controller. Loop pump operation is

automatically controlled by WSHP equipment occupancy

schedules, unoccupied demand and tenant override conditions.

Positive pump status feedback prevents nuisance fault trips.

The condenser water linkage operates when a request for con-

denser water pump operation is sent from each WSHP to the

loop controller. This request is generated whenever any WSHP

is scheduled to be occupied, is starting during optimal start (for

warm-up or pull down prior to occupancy), there is an

unoccupied heating or cooling demand, or a tenant pushbutton

ovemde. At each WSHR the water loop temperature and the

loop pump status is given. The WSHP will NOT start a com-

pressor until the loop pumps are running or will shutdown the

compressors should the pumps stop. This prevents the WSHP

from operating without water flow and thus tripping out on re-

frigerant pressure, causing a lockout condition. The WSHP

Open controller control will prevent this from occumng. Also,

the loop controller can be configured to start the pumps only

after a configurable number of WSHPs are requesting opera-

tion (from 1-"N"). This can be used to prevent starting the en-

tire loop operation for only one WSHR Meanwhile, the

WSHPs will not operate if the loop pump status is off and

therefore the WSHP compressor will not run.

COMPLETE C AND DELUXE D BOARD

SYSTEM TEST

Test mode provides the ability to check the control opera-

tion in a thnely manner. The control enters a 20-minute test

mode by momentarily shorting the test terminals. All time de-

lays are sped up 15 times. The follow operations are colmnon

to both Complete C and Deluxe D controls.

Test Mode -- To enter Test mode, cycle the power 3 times

within 60 seconds. The LED will flash a code representing the

last fault when entering the Test mode. The alarm relay will

also power on and offduring Test mode. See Tables 34 and 35.

To exit Test mode, short the terminals for 3 seconds or cycle

the power 3 times within 60 seconds.

NOTE: The flashing code and alarm relay cycling code will

both have the same numerical label. For example, flashing

code 1 will have an alarm relay cycling code 1. Code 1 indi-

cates the control has not faulted since the last power off to

power on sequence.

Table 34 -- Complete C Control Current LED

Status and Alarm Relay Operations

LED STATUS DESCRIPTION OF OPERATION

Normal Mode

On

off

Slow Flash

Fast Flash

Slow Flash

Flashing Code 1

Flashing Code 2

Flashing Code 3

Flashing Code 4

Flashing Code 5

Flashing Code 6

Flashing Code 7

Flashing Code 8

Flashing Code 9

Normal Mode with PM Warning

Complete C Control is non-functional

Fault Retry

Lockout

Over/Under Voltage Shutdown

Test Mode -- No fault in memory

Test Mode -- HP Fault in memory

Test Mode -- LP Fault in memory

Test Mode -- FP1 Fault in memory

Test Mode -- FP2 Fault in memory

Test Mode -- CO Fault in memory

Test Mode -- Over/Under

shutdown in memory

Test Mode -- PM in memory

Test Mode -- FP1/FP2

Swapped Fault in memory

LEGEND

ALARM RELAY

Open

Cycle (closed 5 sec,

open 25 sec.)

Open

Open

Closed

Open, (Closed after

15 minutes)

Cycling Code 1

Cycling Code 2

Cycling Code 3

Cycling Code 4

Cycling Code 5

Cycling Code 6

Cycling Code 7

Cycling Code 8

Cycling Code 9

CO -- Condensate Overflow LED -- Light-Emitting Diode

FP -- Freeze Protection LP -- Low Pressure

HP -- High Pressure PM -- Performance Monitor

NOTES:

1. Slow flash is 1 flash every 2 seconds.

2. Fast flash is 2 flashes every 1 second.

3. EXAMPLE: "Flashing Code 2" is represented by 2 fast flashes followed by a

10-second pause. This sequence will repeat continually until the fault is cleared.

46

Table 35 -- Complete C Control LED Code and

Fault Descriptions

LED CODE FAULT DESCRIPTION

1No fault in memory There has been no fault since the

last power-down to power-up

sequence

2 High-Pressure Switch HP switch opens instantly

3 Low-Pressure Switch LP switch opens for 30 continu-

ous seconds before or during a

call (bypassed for first

60 seconds)

4 Freeze Protection Coax -- FP1 below Temp limit for

FP1 30 continuous seconds (bypassed

for first 60 seconds of operation)

5 Freeze Protection Air Coil -- FP2 below Temp limit for

FP2 30 continuous seconds (bypassed

for first 60 seconds of operation)

6 Condensate overflow Sense overflow (grounded) for

30 continuous seconds

7 Over/Under Voltage "R" power supply is <19VAC or

(Autoreset) Shutdown >30VAC

8 PM Warning Performance Monitor Warning

has occurred.

9 FP1 and FP2 FP1 temperature is higher than

Thermistors are swapped FP2 in heating/test mode, or FP2

temperature is higher than FP1 in

cooling/test mode.

LEGEND

FP -- Freeze Protection LP -- Low Pressure

HP -- High Pressure PM -- Performance Monitor

LED -- Light-Emitting Diode

WSHP Open Test Mode -- To enter WSHP Open test

mode, navigate from the BACview 6home screen to the config-

uration screen. Choose the service screen and enable unit test.

The controller will then test the following:

FAN TEST -- Tests all fan speeds, sequences fan from low to

high, and operates each speed for one minute. Resets to disable

on completion.

COMPRESSOR TEST--Tests compressor cooling and

heating operation. Sequences cooling stage 1 then cooling

stage 2 followed by heating stage 2 then reduces capacity to

heating stage 1. Operates for 1 minute per step.

DEHUMIDIFICATION TEST -- Tests dehumidification

mode. Operates for 2 minutes.

AUXILIARY HEATING TEST -- Tests auxiliary heat.

Sequences fan on and enables heating coil for 1 minute.

H20 ECONOMIZER TEST -- Tests entering/returning

water loop economizer operation. Sequences fan and opens

economizer water valve for one minute.

OPEN VENT DAMPER 100% TEST -- Tests outside air

(OA) damper operation.

PREPOSITION OA DAMPER -- Prepositions OA damper

actuator to set proper preload.

NOTE: The auxiliary heating test, H20 economizer test, open

vent damper 100% test, and preposition OA damper features

will not be visible on the screen unless configured.

Once tests are complete, set unit test back to disable. Unit will

automatically reset to disable after 1 hour.

Retry Mode -- In Retry mode, the status LED will start to

flash slowly to signal that the control is trying to recover from

an input fault. The control will stage off the outputs and try to

again satisfy the thermostat used to terminal Y. Once the ther-

mostat input calls are satisfied, the control will continue normal

operation.

NOTE: If 3 consecutive faults occur without satisfying the

thermostat input call to terminal Y, the control will go into

lockout mode. The last fault causing the lockout is stored in

memory and can be viewed by entering Test mode.

Aquazone TM Deluxe D Control LED Indica-

tors _ There are 3 LED indicators on the Deluxe D control:

STATUS LED- Status LED indicates the current status or

mode of the D control. The Status LED light is green.

TEST LED- Test LED will be activated any time the D

control is in test mode. The Test LED light is yellow.

FAULT LED -- Fault LED light is red. The fault LED will

always flash a code representing the last fault in memory. If

there is no fault in memory, the fault LED will flash code 1 and

appear as one fast flash alternating with a 10-second pause. See

Table 36.

Table 36 -- Aquazone TM Deluxe D Control Current LED Status and Alarm Relay Operations

DESCRIPTION

Normal Mode

Normal Mode with PM

Deluxe D Control

is non-functional

Test Mode

Night Setback

ESD

Invalid T-stat Inputs

No Fault in Memory

HP Fault

LP Fault

FP1 Fault

FP2 Fault

CO Fault

Over/U nder Voltage

HP Lockout

LP Lockout

FP1 Lockout

FP2 Lockout

CO Lockout

LEGEND

CO -- Condensate Overflow

ESD -- Emergency Shutdown

FP -- Freeze Protection

STATUS LED TEST LED FAULT LED (Red) ALARM RELAY

(Green) (Yellow)

On Off Flash Last Fault Code in Memory Open

On Off Flashing Code 8 Cycle (closed 5 sec,

open 25 sec, ...)

Off Off Open

-- On Cycling Appropriate Code

Flashing Code 2 --

Flashing Code 3 --

Flashing Code 4 --

On Open

Slow Flash Open

Slow Flash Open

Slow Flash Open

Slow Flash Open

Slow Flash Open

Slow Flash Open (closed after 15 minutes)

Fast Flash Closed

Fast Flash Closed

Fast Flash Closed

Fast Flash Closed

Fast Flash Closed

HP -- High Pressure

LP -- Low Pressure

PM -- Performance Monitor

off

Flash Last Fault Code in Memory

Flash Last Fault Code in Memory

Flash Last Fault Code in Memory

Flash Last Fault Code in Memory

Off Flashing Code 1

Off Flashing Code 2

Off Flashing Code 3

Off Flashing Code 4

Off Flashing Code 5

Off Flashing Code 6

Off Flashing Code 7

Off Flashing Code 2

Off Flashing Code 3

Off Flashing Code 4

Off Flashing Code 5

Off Flashing Code 6

NOTES:

1. If there is no fault in memory, the Fault LED will flash code 1.

2. Codes will be displayed with a lO-second Fault LED pause.

3. Slow flash is 1 flash every 2 seconds.

4. Fast flash is 2 flashes every 1 second.

5. EXAMPLE: "Flashing Code 2" is represented by 2 fast flashes followed by

a 10-second pause. This sequence will repeat continually until the fault is

cleared.

47

SERVICE

Perform the procedures outlined below periodically, as

indicated.

To prevent injury or death due to electrical shock or contact

with mov.ing parts, open unit disconnect switch before ser-

vicing umt.

IMPORTANT: When a compressor is removed from this

unit, system refrigerant circuit oil will remain m the com-

pressor. To avoid leakage of compressor oil, the refrigerant

lines of the compressor must be sealed after it is removed.

IMPORTANT: All refrigerant discharged from this unit

must be recovered without exception. Technicians must fol-

low industry accepted guidelines and all local, state and fed-

eral statutes for the recovery and disposal of refrigerants.

IMPORTANT: To avoid the release of refrigerant into the

atmosphere, the refrigerant circuit of this unit must only be

serviced by technicians who meet local, state and federal

proficiency requirements.

Filters -- Filters must be clean for maximum performance.

Inspect filters every month under normal operating conditions.

Replace when necessary.

IMPORTANT: Units should never be operated without ]

a filter. I

Water Coil -- Keep all air out of the water coil. Check

open loop systems to be sure the well head is not allowing air

to infiltrate the water line. Always keep lines airtight.

Inspect heat exchangers regularly, and clean more frequent-

ly if the unit is located in a "dirty" enviromnent. Keep the heat

exchanger full of water at all times. Open loop systems should

have an inverted P trap placed in the discharge line to keep

water m the heat exchanger during off cycles. Closed loop

systems must have a minimum of 15 psig during the smraner

and 40 psig during the winter.

Check P trap frequently for proper operation.

To avoid fouled machinery and extensive unit clean-up,

DO NOT operate units without filters m place. DO NOT

use equipment as a temporary heat source during

construction.

Condensate Drain Pans -- Check condensate drain

pans for algae growth twice a year. If algae growth is apparent,

consult a water treatment specialist for proper chemical treat-

ment. Applying an algaecide every three months will typically

eliminate algae problems in most locations.

Refrigerant System _Verify air and water flow rates

are at proper levels before servicing. To maintain sealed circuit-

ry integrity, do not install service gages unless unit operation

appears abnormal.

Check to see that unit is within the superheat and subcool-

ing temperature ranges shown in Tables 20-30. If the unit is not

within these ranges, recover and reweigh in refrigerant charge.

Compressor -- Conduct annual amperage checks to en-

sure that amp draw is no more than 10% greater than indicated

on the serial plate data.

Fan Motors _All units have lubricated fan motors. Fan

motors should never be lubricated unless obvious, dry opera-

tion is suspected. Periodic maintenance oiling is NOT recom-

mended as it will result m dirt accumulating in the excess oil

and cause eventual motor failure. Conduct annual dry opera-

tion check and amperage check to ensure amp draw is no more

than 10% greater than indicated on serial plate data.

Condensate Drain Cleaning -- Clean the drain line

and unit drain pan at the start of each cooling season. Check

flow by pouring water into drain. Be sure trap is filled to main-

tain an air seal.

Air Coil Cleaning _ Remove dirt and debris from evap-

orator coil as required by condition of the coil. Clean coil with

a stiff brush, vacuum cleaner, or compressed air. Use a fin

comb of the correct tooth spacing when straightening mashed

or bent coil fins.

Condenser Cleaning _Water-cooled condensers may

require cleaning of scale (water deposits) due to improperly

maintained closed-loop water systems. Sludge build-up may

need to be cleaned m an open water tower system due to

induced contaminants.

Local water conditions may cause excessive fouling or

pitting of robes. Condenser robes should therefore be cleaned at

least once a year, or more often if the water is contaminated.

Proper water treatment can minflnize robe fouling and

pitting. If such conditions are anticipated, water treatment

analysis is recolranended. Refer to the Carrier System Design

Manual, Part 5, for general water conditioning information.

Follow all safety codes. Wear safety glasses and rubber

gloves when using inhibited hydrochloric acid solution.

Observe and follow acid manufacturer's instructions.

Clean condensers with an inhibited hydrochloric acid solu-

tion. The acid can stain hands and clothing, damage concrete,

and, without inhibitor, damage steel. Cover surroundings to

guard against splashing. Vapors from vent pipe are not harmful,

but take care to prevent liquid from being carried over by the

gases.

Warm solution acts faster, but cold solution is .just as effec-

tive if applied for a longer period.

GRAVITY FLOW METHOD- Do not add solution faster

than vent can exhaust the generated gases.

When condenser is full, allow solution to remain overnight,

then dram condenser and flush with clean water. Follow acid

manufacturer's instructions. See Fig. 36.

FORCED CIRCULATION METHOD- Fully open vent

pipe when filling condenser. The vent may be closed when

condenser is full and pump is operating. See Fig. 37.

Regulate flow to condenser with a supply line valve. If

pump is a non overloading type, the valve may be fully closed

while pump is running.

For average scale deposit, allow solution to remain m con-

denser overnight. For heavy scale deposit, allow 24 hours.

Drain condenser and flush with clean water. Follow acid manu-

facturer's instructions.

48

FILL CONDENSER WITH

CLEANING SOLUTION. DO

NOT ADD SOLUTION

MORE RAPIDLY THAN

VENT CAN EXHAUST

GASES CAUSED BY

CHEMICAL ACTION.

pU_NNEL PAlL

5' APPROX

CONDENSER

6. Compare the subcooling temperature with the normal

temperature listed in Tables 20-30. If the measured liquid

line temperature does not agree with the required liquid

line temperature, ADD refrigerant to raise the tempera-

ture or REMOVE refrigerant (using standard practices) to

lower the temperature (allow a tolerance of+ 3° F).

Refrigerant Charging

To prevent personal _jury_ wear safety glasses and gloves

when handling refrigerant. Do not overcharge system --

this can cause compressor flooding.

NOTE: Do not vent or depressurize unit refrigerant to atmo-

sphere. Remove and recover refrigerant following accepted

practices.

Air Coil Fan Motor Removal

Fig. 36 -- Gravity Flow Method

PUMP PRIMING

CONN.

SUCTION

PUMP

SUPPORT

CONDENSER

TANK REMOVE WATER

REGULATING VALVE

FINE MES

SCREEN

RETURN

Fig. 37 -- Forced Circulation Method

Checking System Charge -- Units are shipped with

full operating charge. If recharging is necessary:

1. Insert thermometer bulb in insulating rubber sleeve on

liquid line near filter drier. Use a digital thermometer for

all temperature measurements. DO NOT use a mercury

or dial-type thermometer.

2. Connect pressure gage to discharge line near compressor.

3. After unit conditions have stabilized, read head pressure

on discharge line gage.

NOTE: Operate unit a minimum of 15 minutes before

checking charge.

4. From standard field-supplied Pressure-Temperature chart

for R-410A, find equivalent saturated condensing

temperature.

5. Read liquid line temperature on thermometer; then

subtract from saturated condensing temperature. The dif-

ference equals subcooling temperature.

Before attempting to remove fan motors or motor mounts,

place a piece of plywood over evaporator coils to prevent

coil damage.

Disconnect motor power wires from motor terminals before

motor is removed from unit.

1. Shut offunit main power supply.

2. Loosen bolts on mounting bracket so that fan belt can be

removed.

3. Loosen and remove the 2 motor mounting bracket bolts

on left side of bracket.

Slide motor/bracket assembly to extreme right and lift out

through space between fan scroll and side frame. Rest motor on

a high platform such as a step ladder. Do not allow motor to

hang by its power wires.

Replacing the WSHP Open Controller's Bat-

tery--The WSHP Open controller's 10-year lithium

CR2032 battery provides a minimum of 10,000 hours of data

retention during power outages.

NOTE: Power must be ON to the WSHP Open controller

when replacing the battery, or the date, time and trend data will

be lost.

1. Remove the battery from the controller, making note of

the battery's polarity.

2. Insert the new battery, matching the battery's polarity

with the polarity indicated on the WSHP Open controller.

TROUBLESHOOTING

When troubleshooting problems with a WSHR consider the

following:

Control Sensors -- The control system employs 2 nom-

inal 10,000 ohin thermistors (FP1 and FP2) that are used for

freeze protection. Be sure FP1 is located in the discharge fluid

and FP2 is located in the air discharge. See Fig. 38.

Thermistor- A thermistor may be required for single-

phase units where starting the unit is a problem due to low

voltage. See Fig. 39 for thermistor nominal resistance.

49

,\ AIR,_

AIRFLOW "_,COIL_

(:'F)

--{>

THERMISTOR

CONDENSATE

OVERFLOW

(co)

AIRFLOW

EXPANSION

VALVE

FP2

AIR COIL

FREEZE

PROTECTION

LEGEND

COAX -- Coaxial Heat Exchanger

Airflow

Refrigerant Liquid Line Flow

FPI

T 1

WATER IN WATER OUT

WATER

COIL

PROTECTION

Fig. 38 -- FP1 and FP2 Thermistor Location

f

SUCTION

COMPRESSOR

DISCHARGE

J

E

3

90.0

80.0

70.0

60.0

50.0

40.0

30.0

20.0

10.0

0.0

0.0

\\\\

20.0 40.0 60.0 80.0 100.0 120.0 140.0

Temperature (degF)

Fig. 39 -- Thermistor Nominal Resistance

WSHP Open Controller -- With the WSHP Open con-

troller option, the 100 most recent alarms can be viewed using

the BACview6 alarm status and alarm history.

To view the alarms:

1. Navigate to the Alarm Status screen from the Home

screen using the arrow softkeys. The screen will display

the current alarm status, either normal or Alarm, and al-

low for scrolling through the unit's alarm status.

2. From the Alarm Status screen, press the Alarm softkey to

view the 100 most recent alarms which are labeled with

date and time for easy reference.

NOTE: Active faults can be viewed by scrolling down,

these faults indicate a possible bad sensor or some condi-

tion which may not merit an alarm.

3. To view alarms which have been corrected, scroll down

through the Alarm screen to Return Top Normal screen.

NOTE: Alarms are automatically reset once alarm con-

dition has been corrected.

See Table 37 for possible alarm cause and solution.

Thermostatic Expansion Valves -- Thermostat-

ic expansion valves (TXV) are used as a means of metering the

refrigerant through the evaporator to achieve a preset superheat

at the TXV sensing bulb. Correct superheat of the refrigerant is

important for the most efficient operation of the unit and for the

life of the compressor.

Packaged heat pumps typically use one bi-flow TXV to

meter refrigerant in both modes of operation. When diagnosing

possible TXV problems it may be helpful to reverse the refrig-

erant flow to assist with the diagnosis.

Geothermal and water source heat pumps are designed to op-

erate through a wide range of entering water temperatures that

will have a direct effect on the unit refrigerant operating pres-

sures. Therefore, diagnosing TXV problems can be difficult.

TXV FAILURE -- The most colnmon failure mode ofa TXV

is when the valve fails while closed. Typically, a TXV uses

spring pressure to close the valve and an opposing pressure,

usually from a diaphragm, to open the valve. The amount of

pressure exerted by the diaphragm will vary, depending on the

pressure inside of the sensing bulb. As the temperature of and

pressure within the bulb decreases, the valve will modulate

closed and restrict the refrigerant flow through the valve. The

result is less refrigerant in the evaporator and an increase in the

superheat. As the temperature at the bulb increases the dia-

phragm pressure will increase, which opens the valve and

allows more refrigerant flow and a reduction in the superheat.

If the sensing bulb, connecting capillary, or diaphragm

assembly are damaged, pressure is lost and the spring will force

the valve to a closed position. Often, the TXV will not close

completely so some refrigerant flow will remain, even if inade-

quate flow for the heat pump to operate.

The TXV sensing bulb must be properly located, secured,

and insulated as it will attempt to control the temperature of the

line to which it is connected. The sensing bulb must be located

on a dedicated suction line close to the compressor. On a pack-

aged heat pump, the bulb may be located ahnost any place on

the tube running from the compressor suction inlet to the

reversing valve. If the bulb is located on a horizontal section, it

should be placed in the 10:00 or 2:00 position for optimal

performance.

Use caution when tightening the strap. The strap must be

tight enough to hold the bulb securely but caution must be

taken not to over-tighten the strap, which could dent, bend,

collapse or otherwise damage the bulb.

5O

Thebulbmustbesecuredtothepipeusingacopperstrap.

Theuseofheattransferpastebetweenthebulbandthepipe

willalsohelpensureoptimumperformance.

Thebulbmustalsobeproperlyinsulatedtoeliminateany

influenceonvalveoperationbythesurroundingconditions.

Corktapeistherecommendedinsulationasit canbemolded

tighttothebulbtopreventairinfiltration.

Causes of TXV Failure -- The most common causes of TXV

failure are:

1. A cracked, broken, or damaged sensing bulb or capillary

can be caused by excessive vibration of the capillary dur-

ing shipping or unit operation.

If the sensing bulb is damaged or if the capillary is

cracked or broken, the valve will be considered failed and

must be replaced. Replacement of the TXV "power head"

or sensing bulb, capillary, diaphragm assembly is possible

on some TXVs. The power head assembly screws onto

most valves, but not all are intended to be replaceable. If

the assembly is not replaceable, replace the entire valve.

2. Particulate debris within the system can be caused by sev-

eral sources including contaminated components, robing,

and service tools, or improper techniques used during

brazing operations and component replacement.

Problems associated with particulate debris can be coin-

pounded by refrigerant systems that use POE (polyol es-

ter oil). POE oil has solvent-like properties that will clean

the interior surfaces of robing and components. Particu-

lates can be released from interior surfaces and may mi-

grate to the TXV strainer, which can lead to plugging of

the strainer.

3. Corrosive debris within the system may happen after a

failure, such as a compressor burn out, if system was not

properly cleaned.

4. Noncondensables may be present in the system. Non-

condensables includes any substance other than the

refrigerant or oil such as air, nitrogen, or water. Contan_-

nation can be the result of improper service techniques,

use of contaminated components, and/or improper evacu-

ation of the system.

Symptoms -- The symptoms of a failed TXV can be varied

and will include one or more of the following:

• Low refrigerant suction pressure

• High refrigerant superheat

• High refrigerant subcoolmg

• TXV and/or low pressure robing frosting

• Equalizer line condensing and at a lower temperature than

the suction line or the equalizer line frosting

• FP1 faults in the heating mode in combination with any of

the symptoms listed above

• FP2 faults in the cooling mode in combination with any of

the symptoms listed above. Some symptoms can mimic a

failed TXV but may actually be caused be another problem.

Before conducting an analysis for a failed TXV the follow-

ing must be verified:

• Confirm that there is proper water flow and water tempera-

rare in the heating mode.

• Confirm that there is proper airflow and temperature in the

cooling mode.

• Ensure coaxial water coil is clean on the reside; this applies

to the heating mode and may require a scale check.

• Refrigerant may be undercharged. To verify, subcooling and

superheat calculations may be required.

Diagnostics--Several tests may be required to determine if

a TXV has failed. The following tools may be required for

testing:

1. Refrigerant gage manifold compatible with the refriger-

ant in the system

2. Digital thermometer, preferably insulated, with wire leads

that can be connected directly to the tubing

3. Refrigerant pressure-temperature chart for the refrigerant

used

To determine that a TXV has failed, verify the following:

• The suction pressure is low and the valve is non-responsive.

The TXV sensing bulb can be removed from the suction

line and warmed by holding the bulb in your hand. This

action should result in an increase in the suction pressure

while the compressor is operating. The sensing bulb can

also be chilled by immersion in ice water, which should

result in a decrease in the suction pressure while the

compressor is operating. No change in the suction pres-

sure would indicate a nonresponsive valve.

• Simultaneous LOW suction pressure, HIGH refrigerant

subcooling and HIGH superheat may indicate a failed

valve.

• LOW suction pressure, LOW subcoolmg and HIGH super-

heat may indicate an undercharge of refrigerant. HIGH sub-

cooling and LOW superheat may indicate an overcharge of

refrigerant. The suction pressure will usually be normal or

high if there is an overcharge of refrigerant.

• LOW suction pressure and frosting of the valve and/or

equalizer line may indicate a failed valve. However, these

symptoms may also indicate an undercharge of refrigerant.

Calculate the subcoolmg and superheat to verify a failed

valve or refrigerant charge issue.

Puron :R_refrigerant (R-410A) operates at higher pressure

than R-22, which is found in other WSHPs. Tools such as

manifold gages must be rated to withstand the higher pres-

sures. Failure to use approved tools may result in a failure

of tools, which can lead to severe damage to the unit, injury

or death.

Most TXVs are designed for a fixed superheat setting and

are therefore considered non-adjustable. Removal of the

bottom cap will not provide access for adjustinent and can

lead to damage to the valve or equipment, unintended vent-

ing of refrigerant, personal iniury, or possibly death.

Use caution when tightening the strap. The strap must be

tight enough to hold the bulb securely but caution must be

taken not to over-tighten the strap, which could dent, bend,

collapse or otherwise damage the bulb.

Puron refrigerant (R-410A) requires the use of synthetic

lubricant (POE oil). Do not use coirnnon tools on systems

that contain R-22 refrigerants or mineral oil. Contamina-

tion and failure of this equipment may result.

51

IMPORTANT: Always recover the refrigerant from the

system with suitable approved tools, recovery equipment,

and practices prior to attempting to remove or repair any

TX_.

IMPORTANT: Due to the hygroscopic nature of the

POE oil in Puron refrigerant (R-410A) and other environ-

mentally sound refrigerants, any component replace-

ment must be conducted in a timely manner using

caution and proper service procedure for these types of

refrigerants. A complete installation instruction will be

included with each replacement TXV/filter drier assem-

bly. It is of critical importance these instructions are

carefully understood and followed. Failure to follow

these instructions can result in a system that is contami-

nated with moisture to the extent that several filter drier

replacements may be required to properly dry the

system.

IMPORTANT: Repair of any sealed refrigerant system

requires training in the use of refrigeration tools and proce-

dures. Repair should only be attempted by a qualified ser-

vice technician. A universal refrigerant handling certificate

will be required. Local and/or state license or certificate

may also be required.

See Tables 37-39 for additional troubleshooting

information.

Disconnect power from unit before removing or replacing

connectors, or servicing motor. Wait 5 minutes after dis-

connecting power before opening motor.

Table 37 -- ECM Troubleshooting

FAULT DESCRIPTION SOLUTION

Motor rocks slightly when This is normal start-up for ECM.

starting

Motor will not start No movement

Motor oscillates up and down

while being tested off of blower

Motor starts, but runs erratically

Motor rocks

Varies up and down or intermittent

"Hunts" or "puffs" at high cfm

(speed)

Stays at low cfm despite system

call for cool or heat cfm

Stays at high cfm

Blower will not shut off

Excessive noise Noisy blower or cabinet

Evidence of moisture

"Hunts" or "puffs" at high cfm

(speed)

Motor failure or malfunction has

occurred and moisture is present

Evidence of moisture present

inside air mover

Check power at motor.

Check low voltage (24-vac R to C) at motor.

Check low voltage connections (G,Y, W, R, C) at motor.

Check for unseated pins in connectors on motor harness. See Fig. 40.

Test with a temporary jumper between R and G.

Check motor for tight shaft.

Perform motor/control replacement check.

Run moisture check. See Moisture Check section in Troubleshooting.

Check for loose or non-compliant motor mount.

Make sure blower wheel is tight on shaft.

Perform motor/control replacement check.

It is normal for motor to oscillate with no load on shaft.

Check line voltage for variation or "sag."

Check low voltage connections (G,Y, W, R, C) at motor, unseated pins in motor harness

connectors. See Fig. 40.

Check "Bk" for erratic cfm command (in variable speed applications).

Check system controls, thermostat.

Perform moisture check. See Moisture Check section in Troubleshooting.

If removing panel or filter reduces "puffing," reduce restriction or reduce maximum airflow.

Check low voltage (thermostat) wires and connections.

Verify fan is not in delay mode. Wait until delay is complete.

Check to see if "R" is missing/not connected at motor.

Perform motor/control replacement check.

Check to see if "R" is missing/not connected at motor.

Verify fan is not in delay mode. Wait until delay is complete.

Perform motor/control replacement check.

Check to see if there is current leakage from controls into G, Y, or W. Check for Triac switched

thermostat or solid state relay.

Determine if it is air, cabinet, duct, or motor noise.

Check for loose blower housing, panels, etc.

If high static is creating high blower speed, check for air whistling through seams in ducts,

cabinets, or panels.

If high static is creating high blower speed, check for cabinet/duct deformation.

If removing panel or filter reduces "puffing," reduce restriction or reduce maximum airflow.

Replace motor and perform moisture check. See Moisture Check section in Troubleshooting.

Perform moisture check. See Moisture Check section in Troubleshooting.

52

CO_ROL _N_OTOR "_

_j

C3

OQD DO00

m

[

l

I

_T-

i¢t

.......3.........

4OEL_¥

S COOL

7A{X_U_

9

......]0 BK/PW_ .....................................................

11 HEA-r

...._2 R

15

i6 _T4-

i_J_NC - AMP 77_3-_

P_R CONN_OR *

PWB H_D_] _aP 1-_4g--O

PiN DESCmP_

1JLI:_P_ RH t 'TO PU'_ 2FOR

! 2_¢AC Llb_ INP_r oNLY

3C_3_ C_UN D

4 _ UNZ

_USiN_ - A_P

"" WARNING- APPLYING 2_JqAC LINE INPL_

W_ PiN _ 'TO PIN 2 JUMPER IN P_CE W!_

PER_N_NTLY D_AGE UNIT_

Fig. 40 -- ECM Pin Connectors

53

Stopped or Malfunctioned ECM Motor -- Refer

to Fig. 41 to determine the possible cause of a stopped or mal-

functioned ECM motor. Follow the instructions in the boxes.

DOES BLOWER SPIN FREELY? J

YES

NO

CONFIRM _FEITHER BLOWER

WHEEL IS RUBBING AGAINST

HOUSING OR MOTOR SHAFT

IS SPINNING FREELY, REPA1R

OR REPLACE AS NECESSARY.

I

IS THERE 115V I

SUPPUEO TO MOTOR? I

11YES

D_SCONNECT 16 P_N

HARNESS FROM

MOTOR_ IS THERE 24V

ACROSS PIN12 & PIN!

AND P_N12 & PIN3

AT THE HARNESS PLUG?

YES

NO

NO

_[ S THERE 24V

ACROSS R &

B/C ON THE

_NTEGRATED

CONTROL?

I YES

DISCONNECT 16PIN

HARNESS FROM

INTEGRATED CONTROL

_STHERE 24V ACROSS

PIN12 & PIN1 AND

PIN12 & PIN3

AT THE _NROL?

YES

l CHECK HARNESS

CONNECTIONS

AND WIRE.

'CHECK 115V SUPPLY,

CONNECTION FUSES,

SERVICE SWITCH AND

DOOR SWITCH.

NO _ CHECK 24V SUPPLYTO #_4ffEGRATED CONTROL

NO _ REPLACE

_NTEGRATED

CONTROL.

TURN THERMOSTAT MANUAL FAN

SWITCH ON {IF AVAILABLE) OR JUMPER

BE'Fv'VEEN R & G ON INTEGRATED CON_OL.

IS THERE VOLTAGE GREA_R THAN

12V BEP¢TEEN P_N15 & PIN1?

NO CHECK CONNECTIONS _D W_RES

AT INTEGRATED CONTROL IF OK

REPLACE INTEGRATED CONTROL

YES

CHECK CONNECTION ON HARNESS AND MOTOR,

RECONNECT HARNESS TO MOTOR ;F

C_NECT_ONS ARE GOOO AND MOTOR STIL

DOES NOT RUN REPLACE MOTOR_

Fig. 41 -- ECM Troubleshooting Flow Diagram

54

Moisture Check -- To perform moisture check:

•Check that connectors are orientated "down" (or as recom-

mended by equipment manufacturer).

• Arrange harnesses with "drip loop" under motor.

• Check if condensate drain is plugged.

• Check for low airflow (too much latent capacity).

• Check for undercharged condition.

• Check and plug leaks in return ducts, cabinet.

Table 38 -- Good Practices

DO DO NOT

Check motor, controls wiring, and connections thoroughly before replac- Automatically assume the motor is bad,

ing motor,

Orient connectors down so water cannot get in, Install "drip loops." Locate connectors above 7 and 4 o'clock positions,

Use authorized motor and control model numbers for replacement, Replace one motor or control model number with another (unless

replacement is authorized),

Keep static pressure to a minimum by: Use high pressure drop filters,

• Using high efficiency, low-static filters, Use restricted returns,

• Keeping filters clean,

• Designing ductwork for minimum static and maximum comfort,

• Improving ductwork when replacement is necessary.

Size equipment wisely. Oversize system then compensate with low airflow,

Check orientation before inserting motor connectors, Plug in power connector backwards,

Force plugs,

Table 39 -- WSHP Troubleshooting

FAULT HEATING COOLING POSSIBLE CAUSE

Main Power Problems X X Green Status LED Off

HP Fault -- Code 2

High Pressure

LP/LOC Fault -- Code 3

Low Pressure/Loss of

Charge

FP1 Fault -- Code 4

Water Freeze Protection

FP2 Fault -- Code 5

Air Coil Freeze Protection

LEGEND

LED -- Light-Emitting Diode

RV -- Reversing Valve

TXV

X

X

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

Reduced or no water flow in cool-

ing

Water temperature out of range in

cooling

Reduced or no airflow in

heating

Air temperature out of range

in heating

Overcharged with refrigerant

Bad HP switch

Insufficient charge

Compressor pump down at start-

up

Reduced or no water flow

in heating

Inadequate antifreeze level

Improper freeze protect setting

(30 F vs 10 F)

Water temperature out of range

Bad thermistor

Reduced or no airflow in

cooling

Air temperature out of range

Improper freeze protect setting

(30 F vs 10 F)

Bad thermistor

SOLUTION

Check line voltage circuit breaker and disconnect.

Check for line voltage between L1 and L2 on the contactor.

Check for 24 vac between R and C on controller.

Check primary/secondary voltage on transformer.

Check pump operation or valve operation/setting.

Check water flow adjust to proper flow rate.

Bring water temperature within design parameters.

Check for dirty air filter and clean or replace.

Check fan motor operation and airflow restrictions.

Dirty air coil -- construction dust etc.

External static too high. Check blower performance per

Tables 11-13.

Bring return-air temperature within design parameters.

Check superheat/subcooling vs typical operating condition per

Tables 20-30.

Check switch continuity and operation. Replace.

Check for refrigerant leaks.

Check charge and start-up water flow.

Check pump operation or water valve operation/setting.

Plugged strainer or filter. Clean or replace.

Check water flow adjust to proper flow rate.

Check antifreeze density with hydrometer.

Clip JW2 jumper for antifreeze (10 F) use.

Bring water temperature within design parameters.

Check temperature and impedance correlation.

Check for dirty air filter and clean or replace.

Check fan motor operation and airflow restrictions.

External static too high. Check blower performance per

Tables 11-13.

Too much cold vent air. Bring entering air temperature within design

)arameters.

Normal airside applications will require 30 F only.

Check temperature and impedance correlation.

-- Thermostatic Expansion Valve

55

Table 39 -- WSHP Troubleshooting (cont)

FAULT

Condensate Fault-

Code 6

Over/Under Voltage --

Code 7 (Auto Resetting)

Performance Monitor --

Code 8

FP1 and FP2 Thermistors

-- Code 9

No Fault Code Shown

Swapped Thermistor --

Code 9

Unit Short Cycles

Only Fan Runs

Only Compressor Runs

Unit Does Not Operate in

Cooling

Insufficient Capacity/

Not Cooling or Heating

Properly

HEATING

X

X

COOLING

X

X

X

X

X

X

X

POSSIBLE CAUSE

Blocked drain

Improper trap

Poor drainage

Moisture on sensor

Under voltage

Over voltage

SOLUTION

Check for blockage and clean drain.

Check trap dimensions and location ahead of vent.

Check for piping slope away from unit.

Check slope of unit toward outlet.

Poor venting. Check vent location.

Check for moisture shorting to air coil.

Check power supply and 24 vac voltage before and during

operation.

Check power supply wire size.

Check compressor starting.

Check 24 vac and unit transformer tap for correct power supply

voltage.

Check power supply voltage and 24 vac before and during operation.

Check 24 vac and unit transformer tap for correct power supply

voltage.

Check for poor airflow or overcharged unit.

Check for poor water flow or airflow.

X Swap FP1 and FP2 thermistors.

X Swap FP1 and FP2 thermistors.

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x x

x x

x x

x

x

x

x

x

x

x

Heating mode FP2>125 F

Cooling mode FP1>125 F OR

FP2< 40 F

FP1 temperature is higher

than FP2 temperature.

FP2 temperature is higher

than FP1 temperature.

No compressor operation

Compressor overload

Control board

FP1 and FP2 swapped

Dirty air filter

Unit in 'Test Mode'

Unit selection

Compressor overload

Thermostat position

Unit locked out

Compressor overload

Thermostat wiring

Thermostat wiring

Fan motor relay

Fan motor

Reversing valve

Thermostat setup

Thermostat wiring

Dirty filter

Reduced or no airflow in

heating

Reduced or no airflow in

cooling

Leaky ductwork

Low refrigerant charge

Restricted metering device

Defective reversing valve

Thermostat improperly located

Unit undersized

Scaling in water heat exchanger

Inlet water too hot or cold

X

X

See Scroll Compressor Rotation section.

Check and replace if necessary.

Reset power and check operation.

Reverse position of thermistors.

Check and clean air filter.

Reset power or wait 20 minutes for auto exit.

Unit may be oversized for space. Check sizing for actual load of space.

Check and replace if necessary.

Ensure thermostat set for heating or cooling operation.

Check for lockout codes. Reset power.

Check compressor overload. Replace if necessary.

Check Y and W wiring at heat pump. Jumper Y and R for compressor

operation in Test mode.

Check G wiring at heat pump. Jumper G and R for fan operation.

Check Y and W wiring at heat pump. Jumper Y and R for compressor

operation in test mode.

Jumper G and R for fan operation. Check for line voltage across BR

contacts.

Check fan power enable relay operation (if present).

Check for line voltage at motor. Check capacitor.

Set for cooling demand and check 24 vac on RV coil and at control.

If RV is stuck, run high pressure up by reducing water flow and while

operating, engage and disengage RV coil voltage to push valve.

Check for 'O' RV setup not 'B'.

Check O wiring at heat pump. Jumper O and R for RV coil 'Click'.

Replace or clean.

Check for dirty air filter and clean or replace.

Check fan motor operation and airflow restrictions.

External static too high. Check blower performance per

Tables 11-13.

Check for dirty air filter and clean or replace.

Check fan motor operation and airflow restrictions.

External static too high. Check blower performance per

Tables 11-13.

Check supply and return air temperatures at the unit and at distant duct

registers if significantly different, duct leaks are present.

Check superheat and subcooling per Tables 20-30.

Check superheat and subcooling per Tables 20-30. Replace.

Set for cooling demand and check 24 vac on RV coil and at control.

If RV is stuck, run high pressure up by reducing water flow and while

operating, engage and disengage RV coil voltage to push valve.

Check location and for air drafts behind thermostat.

Recheck loads and sizing check sensible cooling load and heat pump

capacity.

Perform condenser cleaning.

Check load, loop sizing, loop backfill, ground moisture.

LEGEND

LED -- Light-Emitting Diode

RV -- Reversing Valve

TXV -- Thermostatic Expansion Valve

56

Table 39 -- WSHP Troubleshooting (cont)

FAULT HEATING

High Head Pressure X

Low Suction Pressure

Low Discharge Air

Temperature in Heating

High Humidity

Low Refrigerant Suction

Pressure

High Refrigerant

Superheat

High Refrigerant

Subcooling

x

x

x

x

COOLING

X

X

x

x

x

x

x

x

x

x

x

x

x

x

x

POSSIBLE CAUSE

Reduced or no airflow in

heating

Reduced or no water flow in cool-

mg

Inlet water too hot

Air temperature out of range in

heating

Scaling in water heat exchanger

Unit overcharged

Noncondensables in system

Restricted metering device

Reduced water flow in

heating

Water temperature out of range

Reduced airflow in cooling

Air temperature out of range

Insufficient charge

Too high airflow

Poor performance

Too high airflow

Unit oversized

X Normal operation

X Reduced water flow

X Water temperature out of range

X Scaling in water to refrigerant

heat exchanger

X Reduced airflow

x

x

x

x

x

x

x

x

x

Return air temperature below

minimum

x

x

x

SOLUTION

Check for dirty air filter and clean or replace.

Check fan motor operation and airflow restrictions.

External static too high. Check blower performance per

Tables 11 -13.

Check pump operation or valve operation/setting.

Check water flow adjust to proper flow rate. See Tables 19 and 31.

Check load, loop sizing, loop backfill, ground moisture.

Bring return-air temperature within design parameters.

Perform condenser cleaning.

Check superheat and subcooling. Reweigh in charge.

Remove refrigerant, evacuate system and charge unit.

Check superheat and subcooling per Tables 20-30. Replace.

Check pump operation or water valve operation/setting.

Plugged strainer or filter. Clean or replace.

Check water flow adjust to proper flow rate.

Bring water temperature within design parameters.

Check for dirty air filter and clean or replace.

Check fan motor operation and airflow restrictions.

External static too high. Check blower performance per

Tables 11-13.

Too much cold vent air. Bring entering air temperature within design

3arameters.

Check for refrigerant leaks.

Check blower performance per Tables 11-13.

See "Insufficient Capacity."

Check blower performance per Tables 11-13.

Recheck loads and sizing check sensible cooling load and heat pump

capacity.

Check/compare with Tables 20-30.

Check pump operation.

Check strainer or filter.

Improper flow regulator. Replace flow regulator.

Bring water temperature within proper range.

Conduct water quality analysis.

Check for dirty air filter.

Check for dirty air coil.

Check fan motor operation.

External static pressure exceeds fan operating parameters.

Space temperature too cold. Increase space temperature.

Excessive fresh air. Reduce amount of fresh air exposure.

Check for leaking ductwork.

X Locate and repair leak.

X Locate bulb on suction line between reversing valve and compressor.

X Failed TXV power head, capillary or sensing bulb. Replace.

Plugged TXV strainer. Unplug TXV strainer.

Locate and repair leak.

Locate bulb on suction line between reversing valve and compressor.

x

x

Supply air bypassing to return

airstream (zone systems)

Insufficient refrigerant charge

Improperly located TXV sens-

ing bulb

Failed or restricted metering

device

Insufficient refrigerant charge

Improperly located TXV sens-

ing bulb

Failed or restricted metering

device

Excessive refrigerant charge

Failed or restricted metering

device

Normal operation

Insufficient refrigerant charge

Failed or restricted metering

device

Failed or restricted metering

device

TXV and/or Low Pressure X

Tubing Frosting X

X

Equalizer Line

Condensing or Frosting

X

X

Failed TXV power head, capillary or sensing bulb. Replace.

Plugged TXV strainer. Unplug TXV strainer.

Remove refrigerant as needed.

Failed TXV power head, capillary or sensing bulb. Replace.

Plugged TXV strainer. Unplug TXV strainer.

May occur when entering water temperature is close to minimum.

Locate and repair leak.

Failed TXV power head, capillary or sensing bulb. Replace.

Plugged TXV strainer. Unplug TXV strainer.

Failed TXV power head, capillary or sensing bulb. Replace.

Plugged TXV strainer. Unplug TXV strainer.

LEGEND

LED -- Light-Emitting Diode

RV -- Reversing Valve

TXV -- Thermostatic Expansion Valve

57

APPENDIX A EWSHP OPEN SCREEN CONFIGURATION

SCREEN NAME

Equipment

Status

Alarm Status

Sensor

Calibration

POINT NAME

Operating Mode

SPT

SAT

Condenser Leaving

Temperature

Condenser Entering

Temperature

Fan

Compressor Capacity

Damper Position

H20 Economizer

Auxiliary Heat

Space RH

Dehumidification

IAQ CO 2

SPT Alarm Status

Alarming SPT

SPT Alarm Limit

SPT Sensor Alarm

Status

IAQ Alarm Status

Compressor Alarm

Status

SAT Alarm Status

Condensate Overflow

Alarm Status

Condenser Water Tem-

perature Alarm Status

Filter Alarm Status

Space RH Alarm Status

OAT Alarm Status

Airside Linkage Status

Condenser Water

Linkage

SAT

SAT Offset

Leaving Condenser

Water Temperatu re

Leaving CW Offset

Rnet Sensor

Temperature

Rnet Offset

RH

RH Sensor Offset

PASSWORD

LEVEL

No Password

Required

No Password

Required

Admin Password

level access only

EDITABLE

X

X

RANGE DEFAULT NOTES

Off, Fan Only, Economize,

Cooling, Heating, Cont Fan,

Test, Start Delay, Dehumidify

o F

o F

o F

o F

Off/Low Speed/

Medium Speed

High Speed/On

0- 100%

0 - 100%

0- 100%

0 - 100%

0 - 100%

Inactive/Active

0 - 9999 ppm

Normal/Alarm

o F

o F

Normal/Alarm

Normal/Alarm

Normal/Alarm

Normal/Alarm

Normal/Alarm

Normal/Alarm

Normal/Alarm

Normal/Alarm

Normal/Alarm

Normal/Alarm

Normal/Alarm

o F

-9.9-10.0° F

o F

-9.9- 10.0 o F

o F

-9.9- 10.0 o F

%

-15% - 15%

0OF

0OF

0°F

O%

Displays unit operating mode

Displays SPT

Displays SAT

Displays leaving condenser

water temperature

Displays entering condenser

water temperature (Value

will not update when compressor

is operating)

Displays fan speed status

Displays compressor capacity

Displays current damper position

(Viewable only if Ventilation DMP

Type = 2 position or DCV)

Displays position of economizer valve

Displays position of auxiliary

reheat valve (Viewable only if Leaving

Air Auxiliary Heat Type = 2 position,

1 stage Elect or Modulating)

Displays space RH% (Viewable only if

Humidity Sensor = Installed)

Displays if dehumidification is active

(Viewable only if Factory

Dehumidification Reheat = Installed)

Displays the space CO2 level

Displays current space

temperature condition

Displays the SPT that

exceeded the alarm limit (when SPT

alarm above is in Alarm)

Displays the SPT alarm limit that was

exceeded; causing the alarm condition

(when SPT alarm above is in Alarm)

Displays the status of the Rnet

SPT sensor - ALARM is displayed

should the sensor fail to communicate

with the control module

Current IAQ/ventilation condition

Current compressor condition

Current SAT condition

Current status of the condensate

drain (overflow switch)

Current status of the

condenser water

Current filter condition

Current space RH condition

Current status of the OAT

broadcast function

Current linkage status if enabled

Current linkage status if enabled

Display SAT

Used to correct sensor reading

Displays Leaving Condenser

Water Temperature

Used to correct sensor reading

Displays SPT

Used to correct sensor reading

Displays Space RH value

Used to correct sensor reading

LEGEND

BAS -- Building Automation System

DCV -- Demand Controlled Ventilation

IAQ -- Indoor Air Quality

OAT -- Outdoor Air Temperature

RH -- Relative Humidity

SAT -- Supply Air Temperature

SPT -- Space Temperature

TPI -- Third Party Integration

58

APPENDIX A EWSHP OPEN SCREEN CONFIGURATION (cont)

SCREEN NAME

Unit

Maintenance

System Settings

Occupancy

Maintenance

Schedule

Configuration

POINT NAME

Operating Mode

Fan Operating Mode

Occupancy Status

Occupancy Control

Outside Air

Temperatu re

SPT

SPT Status

SPT Sensor Status

Condensate Overflow

Cooling Set Point

Heating Set Point

Set Point Adjustment

Auxiliary Heat Control

Set Point

H20 Economizer

Control Set Point

Calculated IAQ/

Ventilation Damper

position

Active Compressor

Stages

SAT

Reset Filter Alarm

Overflow Contact

Occupancy Contact

BAS/Keypad Override

OAT Input

BACnet

Keypad Configuration

Password

Network

BACnet Time Master

Clock Set

Override Schedules

Pushbutton Override

Keypad Override

Schedules

Occupancy Contact

BAS on/off

Local Occupancy

Schedules

Local Holiday

Schedules

Local Override

Schedules

BACnet Occupancy

Schedules

PASSWORD EDITABLE RANGE DEFAULT NOTES

LEVEL

No Password

required

No Password

required

User/Admin

Password level

access

X

X

X

X

X

X

X

X

X

X

Off, Fan Only, Economize,

Cooling, Heating, Cont Fan, Test,

Start Delay, Dehumidify

Auto/Continuous/Always On

Unoccupied/Occupied

Always Occupied/Local Schedule/

BACnet Schedule/BAS Keypad/

Occupied Contact/Holiday Schedule/

Override Schedule/Pushbutton

Override/Unoccupied None

o F

o F

Normal/Above Limit/Below

Limit/Sensor Failure

Inactive/Con nected

Normal/Alarm

o F

o F

o F

o F

o F

%

0/1/2

o F

No/Yes

Closed/Open

Closed/Open

Inactive/Occupied/

Unoccupied

N/A /Network

Inactive/Active Occupied

Inactive/Active Occupied

Inactive/Active Occupied/Active

Unoccupied

Inactive/Active Occupied

Inactive/Active Occupied

Inactive/Active Occupied

Disable/Enable

Disable/Enable

Disable/Enable

Disable/Enable

Inactive

Enable

Disable

Disable

Disable

Displays unit operating mode

Displays how the fan is configured

to operate

Displays the current occupancy status

Displays the origin of the

occupancy control

Displays OAT (Viewable only if OAT

is a network broadcast)

Displays SPT

Displays the SPT status

Displays the connection status

of the Rnet sensor

Displays the status of the

condensate overflow

Displays the actual set point

being used for cooling control

Displays the actual set point

being used for heating control

Displays the offset values from the Rnet

user set point adjustment that is being

applied to the configured set points

Displays the calculated set point being

used for auxiliary heating control

Displays the calculated set point being

used for economizer control

Displays the ventilation damper

position calculated by the DCV control

Displays the actual number of

compressor stages operating

Displays SAT

Used to reset the filter alarm timer after

the filter has been cleaned or replaced

Displays the state of the condensate

overflow switch contact

Displays the state of the external/

remote occupancy input switch contact

Provides capability to force the

equipment to operate in an

occupied or unoccupied mode

Displays if an OAT value is being

received from the Network

See TPI

Mapping

Changes password

See TPI

See TPI

Changes clock/time setting

Used to display the active and

inactive occupancy control inputs

Used to define which occupancy inputs

are used to determine

occupancy mode.

LEGEND

BAS -- Building Automation System

DCV -- Demand Controlled Ventilation

IAQ -- Indoor Air Quality

OAT -- Outdoor Air Temperature

RH -- Relative Humidity

SAT -- Supply Air Temperature

SPT -- Space Temperature

TPI -- Third Party Integration

59

APPENDIX A EWSHP OPEN SCREEN CONFIGURATION (cont)

SCREEN NAME

Configuration

Set Points

Configuration

$

Schedule

$

Weekly Schedule

Configuration

Schedule

Exception

Schedules 1 - 12

POINT NAME

Occupied Heating

Occupied Cooling

Unoccupied Heating

Unoccupied Cooling

Effective Heating

Set Point

Effective Cooling

Set Point

Optimal Start

Occupied RH

Set Point

Unoccupied RH

Set Point

DCV CTRL Start

Set Point

DCV Max CTRL

Set Point

Start Time

End Time

Mon

Tue

Wed

Thur

Fri

Sat

Sun

Start Month

Start Day

Start Time

End Month

End Day

End Time

PASSWORD

LEVEL

User/Admin

Password level

access

User/Admin

Password level

access

User/Admin

Password level

access

EDITABLE

X

X

X

X

X

X

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

RANGE

40 - 90 o F

55 - 99 o F

40 - 90 o F

55 - 99 o F

O- 10 ° F

0-10°F

0 - 100%

0 - 100%

0 - 9999 ppm

0 - 9999 ppm

00:00 - 23:59

00:00 - 24:00

No/Yes

No/Yes

No/Yes

No/Yes

No/Yes

No/Yes

No/Yes

0-12

0- 31

00:00 - 23:59

0-12

O- 31

00:00 - 24:00

DEFAULT

72 ° F

76 ° F

55 ° F

90 ° F

65%

90%

500 ppm

1050 ppm

06:00

18:00

Yes

Yes

Yes

Yes

Yes

No

No

0

0

0:00

0

0

0:00

NOTES

Defines the Occupied

Heating Set Point

Defines the Occupied

Cooling Set Point

Defines the Unoccupied

Heating Set Point

Defines the Unoccupied

Cooling Set Point

Takes into effect bias (maximum

allowable set point deviation)

Takes into effect bias (maximum

allowable set point deviation)

Uses historical data to calculate

ramp up time so as to be at set point

at occupied/unoccupied time

Defines the control set point used

during occupied periods (Viewable

only if Humidity Sensor = Installed/

Determines when to start

Dehumidification when occupied)

Defines the control set point used

during unoccupied periods

(Viewable only if Humidity Sensor =

Installed/Determines when to start

Dehumidification when unoccupied)

Defines the control set point used to

start increasing ventilation during

occupied periods (Viewable only if

Ventilation DMP Type = DCV)

Defines the control set point

used to define where the ventilation

will reach its maximum limit during

occupied periods (Viewable only if

Ventilation DMP Type = DCV/Used

to determine DCV ending control

point)

Defines the start time for an

occupied period

Defines the ending time of an

occupied period

Determines if this day is included

in this schedule

Determines if this day is included

in this schedule

Determines if this day is included

in this schedule

Determines if this day is included

in this schedule

Determines if this day is included

in this schedule

Determines if this day is included

in this schedule

Determines if this day is included

in this schedule

Defines the start month of this

holiday schedule

Defines the start day of this holiday

schedule

Determines the start time for this

schedule

Defines the month to end this

holiday schedule

Defines the day to end this holiday

schedule

Determines the time to end this

schedule

LEGEND

BAS -- Building Automation System

DCV -- Demand Controlled Ventilation

IAQ -- Indoor Air Quality

OAT -- Outdoor Air Temperature

RH -- Relative Humidity

SAT -- Supply Air Temperature

SPT -- Space Temperature

TPI -- Third Party Integration

d0

APPENDIX A EWSHP SCREEN OPEN CONFIGURATION (cont)

SCREEN NAME

Configuration

$

Unit

Configuration

Configuration

$

Service

$

Test

POINT NAME

Fan Mode

Fan On Delay

Fan Off Delay

Heating Enable

Cooling Enable

Minimum SAT in

Cooling

Maximum SAT in

Heating

Damper Ventilation

Position

DCV Maximum Vent

Position

Filter Alarm Timer

Pushbutton Override

SPT Sensor Set Point

Adjustment

Lockout Cooling if

OAT <

Lockout Heating if

OAT >

Power Fail Restart

Delay

Occupancy Schedules

Set Point Separation

Test Mode

Fan Test

Fan Speed

Compressor Test

Dehumidification Test

Testing Compressor

Aux Heating Test

H20 Economizer Test

Preposition OA

Damper

Open Vent

Damper 100%

SAT

LCWT

PASSWORD

LEVEL

Admin Password

level access only

Admin Password

level access only

EDITABLE

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

RANGE

Auto/Continuous/

Always On

0 - 30 sec

0 - 180 sec

Disable/Enable

Disable/Enable

40-60 ° F

80- 140 o F

0 - 100%

0 - 100%

0 - 9999 hrs

Disable/Enable

Disable/Enable

-65 - 80 ° F

35- 150 o F

0 - 600 sec

Disable/Enable

2-9OF

Disable/Enable

Disable/Enable

Off/Low Speed/Medium

Speed/High Speed/On

Disable/Enable

Disable/Enable

Inactive/Heating/Cooling/

Dehumidify/TimeGard

Wait

Disable/Enable

Disable/Enable

Disable/Enable

Disable/Enable

o F

o F

DEFAULT

Continuous

10 sec

45 sec

Enable

Enable

50 ° F

110 ° F

100%

100%

0 hrs

Enable

Enable

-65 o F

150 ° F

60 sec

Enable

4OF

Disable

Disable

Disable

Disable

Disable

Disable

Disable

Disable

NOTES

Auto= Intermittant operation during both

occupied and unoccupied periods/

Continuous = Intermittant during unoccupied

periods and continuous during occupied

periods/Always on = fan operates

continuously during both occupied and

unoccupied periods

Defines the delay time before the fan begins

to operate after heating or cooling is started

Defines the amount of time the fan will

continue to operate after heating or

cooling is stopped

Provides capability to manually

disable heating operation

Provides capability to manually

disable cooling operation

Defines the minimum acceptable operating

temperature for the Supply Air

Defines the maximum acceptable operating

temperature for the Supply Air

Normally set to 100% if 2 position damper

type or set to minimum ventilation position if

damper type = DCV

Usually set at 100% - Used to limit maximum

damper opening in DCV mode

Disables Filter Alarm if set to 0

Enables Override Feature on Rnet sensor

Enables Set Point adjustment capability

on Rnet Sensor

Cooling is locked out when OAT is less than

configured value and OAT is actively being

broadcast

Heating is locked out when OAT is greater

than configured value and OAT is actively

being broadcast

Delay before equipment starts

Enables unit occupied

Used to enforce minimum

set point separation

Used to enable test mode. Will automatically

reset to disable after 1 hour

Used to test all fan speeds. Sequences fan

from low to high and operates each speed for

1 minute. Resets to disable on completion

Displays current fan operation

Used to test compressor cooling and heating

operation. Sequences cooling stage 1, then

stage 2, then heating stage 2 and reduces

capacity to stage 1. Operates for 1 minute per

step. Resets to disable on completion.

Used to test dehumification mode -

Operates for 2 minutes. Resets to

disable on completion.

Displays compressor test mode

Used to test auxiliary heat.

Sequences fan on and enables

heating coil for 1 minute. Resets to

disable on completion

Used to test entering/return air water loop

economizer coil operation. Sequences fan on

and opens economizer coil water valve for 1

minute. Resets to disable on completion

Used to preposition OA damper

actuator to set proper preload

Used to test OA damper operation

Displays SAT

Displays Leaving Condenser

Water Temperature

LEGEND

BAS -- Building Automation System

DCV -- Demand Controlled Ventilation

IAQ -- Indoor Air Quality

OAT -- Outdoor Air Temperature

RH -- Relative Humidity

SAT -- Supply Air Temperature

SPT -- Space Temperature

TPI -- Third Party Integration

d!

APPENDIX A EWSHP SCREEN OPEN CONFIGURATION (cont)

SCREEN NAME

Configuration

$

Service

Configuration

POINT NAME

# of Fan Speeds

G Output Type

Compressor Stages

Reversing Valve Type

Leaving Air Auxiliary

Heat Type

Entering Air Water

Economizer Type

2-Position Water

Valve Type

Modulating Water

Valve Type

Ventilation Damper

Type

Damper Actuator Type

Humidity Sensor

Factory Dehumidifica-

tion Reheat Coil

Occupancy

Input Logic

Condensate Switch

Alarm Delay

Condensate Switch

Alarm State

Minimum Condenser

Water Temperature in

Heating

Maximum Condenser

Water Temperature in

Heating

Minimum Condenser

Water Temperature in

Cooling

Maximum Condenser

Water Temperature in

Cooling

IAQ sensor

minimum input

IAQ sensor

maximum input

IAQ sensor

minimum output

IAQ sensor

maximum output

PASSWORD

LEVEL EDITABLE RANGE DEFAULT

X 1,2,3 3

Admin Password

level access only

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

Fan On/Fan Low Fan On

One Stage/Two Stages One Stage

O type output/B type output O type

None/2-Position HW/1 Stage None

Electric/Modulating HW

None/2-Position/Modulating None

Normally Closed/Normally Open Normally

Closed

Normally Closed/Normally Open Normally

Closed

None/2-Position/DCV None

(0-10 volt)/(2-10 volt) 0-10 volt

None/Installed None

None/Installed None

Occupied Open/Occupied Closed Occupied

CLOSED

5 - 600 seconds 10 sec

Alarm OPEN/Alarm CLOSED Alarm

CLOSED

25- 60 ° F 60 ° F

65- 100 ° F 90 ° F

30 - 60 ° F 60 o F

85- 120 ° F 95 ° F

0 - 5 ma 4 ma

5 - 20 ma 20 ma

0 - 9999 ppm 0 ppm

0 - 9999 ppm 2000 ppm

NOTES

Used to set number of

fan motor speeds

When set to Fan On, G output is

energized when ever any fan speed

is active (required for ECM and Fan

control board). When set to Fan

Low, output is only energized for

Low Speed

Defines the number of

stages of compression

Determines reversing valve

signal output type

Determines Auxiliary

Reheat Coil Type

Determines Entering Air

Economizer Coil Type

Determines type of 2-position

water valve used

Determines type of modulating

water valve used

Determines type of ventilation

damper control to be used

Used to determine ventilation

damper output signal range

(closed - open)

Set to Installed if humidity

sensor is present

Set to Installed if factory-installed

dehumidification reheat coil

is present

Used to determine external occu-

pancy switch contact occupied state

Delay before equipment alarms on

high condensate level

Determine Alarm state of

condensate switch input

Determines the minimum

acceptable water loop temperature

to start heating

Determines the maximum

acceptable water loop temperature

to start heating

Determines the minimum

acceptable water loop temperature

to start cooling

Determines the maximum

acceptable water loop temperature

to start cooling

Minimum output current (mA)

for IAQ sensor

Maximum output current (mA) for

IAQ sensor

Corresponding value in ppm for

minimum output current

Corresponding value in ppm for

maximum output current

LEGEND

BAS -- Building Automation System

DCV -- Demand Controlled Ventilation

IAQ -- Indoor Air Quality

OAT -- Outdoor Air Temperature

RH -- Relative Humidity

SAT -- Supply Air Temperature

SPT -- Space Temperature

TPI -- Third Party Integration

62

APPENDIX A EWSHP SCREEN OPEN CONFIGURATION (cont)

SCREEN NAME

Configuration

4.

Alarm

Configuration

Configuration

4.

Linkage

POINT NAME

SPT Occupied Alarm

Hysteresis

SPT Alarm Delay

SPT Unoccupied Low

Alarm Temperature

SPT Unoccupied High

Alarm Temperature

SAT Low SAT

Alarm Limit

SAT High SAT

Alarm Limit

Condensate Overflow

Alarm Delay

Space Humidity Occupied

High Alarm Limit

Space Humidity Alarm

Delay

Space Humidity Unoccu-

pied High Alarm Limit

IAQNentilation Occupied

High Alarm Limit

IAQ/Ventilation

Alarm Delay

Rnet Sensor SPT Alarm

Rnet Sensor SAT Alarm

Rnet Sensor Compressor

Lockout Alarm

Rnet Sensor Condenser

Water Temperature Alarm

Rnet Sensor Condensate

Overflow Alarm

Rnet Sensor Dirty

Filter Alarm

Rnet Sensor Space

High Humidity Alarm

Loop Control Network

Number

Loop Control Network

Address

Number of Linked Heat

Pumps

LEGEND

BAS -- Building Automation System

DCV -- Demand Controlled Ventilation

IAQ -- Indoor Air Quality

OAT -- Outdoor Air Temperature

RH -- Relative Humidity

SAT -- Supply Air Temperature

SPT -- Space Temperature

TPI -- Third Party Integration

PASSWORD

LEVEL EDITABLE RANGE DEFAULT

X 2-20 ° F 5 ° F

Admin Password

level access only

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

0 - 30 min per degree 10 min

35 - 90 ° F 45 o F

45- 100 ° F 95 ° F

15- 90 ° F 45 ° F

90- 175 ° F 120 ° F

5 - 600 sec 10 sec

45%- 100% 100%

0- 30 min per % RH 5 min

45%- 100% 100%

0 - 9999 ppm 1100 ppm

0.1 - 1.0 min per ppm 0.25 min

Ignore/Display Ignore

Ignore/Display Ignore

Ignore/Display Display

Ignore/Display Display

Ignore/Display Display

Ignore/Display Display

Ignore/Display Ignore

NOTES

Defines the hysteresis applied above

the cooling and below the heating set

points before an alarm condition will

occur

Used to calculate the delay time before

an alarm is generated after the alarm

condition occurs

Defines the fixed unoccupied

ow SPT alarm limit

Defines the fixed unoccupied

high SPT alarm limit

Defines the fixed minimum

SAT alarm limit

Defines the fixed maximum

SAT alarm limit

Defines the delay time before an alarm

is generated after the alarm condition

OCCUrs

Defines the fixed occupied

high space RH alarm limit

Used to calculate the delay time before

an alarm is generated after the alarm

condition occurs

Defines the fixed unnoccupied

high space RH alarm limit

Defines the fixed occupied high

space IAQNentilation alarm limit

Used to calculate the delay time before

an alarm is generated after the alarm

condition occurs

Determines if the SPT alarm is

displayed on the local Rnet sensor

Determines if the SAT alarm is

displayed on the local Rnet sensor

Determines if the Compressor Lockout

alarm is displayed on the local Rnet

sensor

Determines if the Condenser Water

Temperature alarm is displayed on the

local Rnet sensor

Determines if the Condensate

Overflow alarm is displayed on the

local Rnet sensor

Determines if the Dirty Filter alarm is

displayed on the local Rnet sensor

Determines if the High Space

RH alarm is displayed on the

local Rnet sensor

See TPI

See TPI

See TPI

63

Copyright 2009 Carrier Corporation

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53500055-01 Printed in U.S.A. Form 50PS-3Sl Pg 66 7-09 Replaces: 50PS-2Sl

CUSTOMER:

MODEL NO.:

50PSH,PSV, PSD

START-UP CHECKLIST

JOB NAME:

SERIAL NO.: DATE:

PRE-START-UP

DOES THE UNiT VOLTAGE CORRESPOND WITH THE SUPPLY VOLTAGE AVAILABLE? (Y/N)

HAVE THE POWER AND CONTROL WIRING CONNECTIONS BEEN MADE AND TERMINALS

TIGHT? (Y/N)_

HAVE WATER CONNECTIONS BEEN MADE AND IS FLUID AVAILABLE AT HEAT EXCHANGER?

(Y/N) __

HAS PUMP BEEN TURNED ON AND ARE ISOLATION VALVES OPEN? (Y/N) __

HAS CONDENSATE CONNECTION BEEN MADE AND IS ATRAP INSTALLED? (Y/N) __

IS AN AIR FILTER INSTALLED? (Y/N) __

II. START-UP

IS FAN OPERATING WHEN COMPRESSOR OPERATES? (Y/N) __

IF 3-PHASE SCROLL COMPRESSOR IS PRESENT, VERIFY PROPER ROTATION PER INSTRUCTIONS.

(Y/N) __

UNIT VOLTAGE -- COOLING OPERATION

PHASE AB VOLTS PHASE BC VOLTS

(if 3 phase)

PHASE AB AMPS PHASE BC AMPS

(if 3 phase)

CONTROL VOLTAGE

IS CONTROL VOLTAGE ABOVE 21.6 VOLTS? (Y!N) __

IF NOT, CHECK FOR PROPER TRANSFORMER CONNECTION.

TEMPERATURES

FILL IN THE ANALYSIS CHART ATTACHED.

PHASE CA VOLTS

(if 3 phase)

PHASE CA MPS

(if 3 phase)

COAXIAL HEAT COOLING CYCLE:

EXCHANGER FLUID IN F FLUID OUT F

HEATING CYCLE:

FLUID IN F FLUID OUT F

AIR COIL COOLING CYCLE:

AIR IN F AIR OUT F

HEATING CYCLE:

AIR IN F AIR OUT F

PSI FLOW

PSI FLOW

CL-1

HEATING CYCLE ANALYSIS

AiR

"OCOILO

_\\\\\

oF

\\\\\_

oF

EXPANSION

VALVE

___°F

LIQUID LINE ___°F o F

__PSI --PSI

FLUID IN I FLUID OUT

I

-- PSI

° F

/

3

-- SAT

SUCTION

COMPRESSOR

DISCHARGE

LOOK UP PRESSURE DROP IN TABLE 31

TO DETERMINE FLOW RATE

COOLING CYCLE ANALYSIS

\\AIR\\

oF

\ \ , ,, \

, \ \, \,,

oF

EXPCp,ON

F t

LIQUID LINE ---°F --._F

__PSI --PSI

FLUID IN FLUID OUT

[

PSI

i

]

-- SAT

SUCTION

COMPRESSOR

DISCHARGE

J

LOOK UP PRESSURE DROP IN TABLE 31

TO DETERMINE FLOW RATE

HEAT OF EXTRACTION (ABSORPTION) OR HEAT OF REJECTION =

FLOW RATE (GPM) x TEMR DIFF. (DEG F) x FLUID FACTOR* =

(Btu/hr)

SUPERHEAT =SUCTION TEMPERATURE -SUCTION SATURATION TEMPERATURE

= __ (DEG F)

SUBCOOLING =DISCHARGE SATURATION TEMPERATURE - LIQUID LIN_ TEMPERATURE

= __ (DEG F)

*Use 500 for water, 485 for antifreeze.

97B0038N04

Copyright 2009 Carrier Corporation

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53500055-01 Printed in U.S.A. Form 50PS-3SI Pg CL-2 7-09 Replaces: 50PS-2Sl

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