CARRIER Package Units(both Units Combined) Manual L0520534

User Manual: CARRIER CARRIER Package Units(both units combined) Manual CARRIER Package Units(both units combined) Owner's Manual, CARRIER Package Units(both units combined) installation guides

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48HJ004-007

Single-Package Rooftop Heating/Cooling

Standard and Low NOx Units

Installation, Start-Up and

Service Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS ...................... 1

INSTALLATION ................................ 1-36

Step 1 -- Provide Unit Support ................... 1

• ROOF CURB

• SLAB MOUNT

• ALTERNATE UNIT SUPPORT

Step 2 -- Field Fabricate Ductwork ............... 2

Step 3 -- Install External Trap for

Condensate Drain .............................. 4

Step 4-- Rig and Place Unit ..................... 4

• POSITIONING

Step 5-- Install Flue Hood ....................... 5

Step 6 -- Install Gas Piping ...................... 5

Step 7 -- Make Electrical Connections ........... 5

• FIELD POWER SUPPLY

• FIELD CONTROL WIRING

• HEAT ANTICIPATOR SETTINGS

Step 8 -- Adjust Factory-Installed Options ...... 13

• COBRA TM ENERGY RECOVERY UNITS

• HUMIDI-MIZER TM ADAPTIVE

DEHUMIDIFICATION SYSTEM

• MANUAL OUTDOOR-AIR DAMPER

•CONVENIENCE OUTLET

• NOVAR CONTROLS

• PREMIERLINK TM CONTROL

• OPTIONAL ECONOMISER IV AND ECONOMISER2

• ECONOMISER IV STANDARD SENSORS

• ECONOMISER IV CONTROL MODES

Step 9 -- Adjust Evaporator-Fan Speed ......... 25

PRE-START-UP .................................. 37

START-UP .................................... 37-42

SERVICE ..................................... 42-48

TROUBLESHOOTING ......................... 49-53

INDEX ........................................... 54

START-UP CHECKLIST ........................ CL-I

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can

be hazardous due to system pressure and electric_d compo-

nents. Only trained and qualifed service personnel should

install, repair, or service ai>conditioning equipment.

Untrained personnel can perform basic maintenance func-

tions of cleaning coils and filters and replacing filters. All other

operations should be performed by trained service personnel.

When working on ai>conditioning equipment, observe precau-

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

other safety precautions that may apply.

Follow all safety codes. Wear safety glasses and work

gloves. Use quenching cloth for unbrazing operations. Have

fire extinguishers avaihtble for all brazing operations.

Before performing service or maintenance operations on

unit, turn off main power switch to unit and install lockout

tag. Ensure electrical service to rooftop unit agrees with

voltage and amperage listed on the unit rating phtte. Elec-

tricgd shock could cause personal injury.

Disconnect gas piping from unit when leak

testing at pressure greater than 1/2psig. Pres-

sures greater than ]h psig will cause gas valve

damage resulting in haz_u'dous condition. If

gas valve is subjected to pressure greater titan

1hpsig, it mustbe replaced before use. When

_ressure testing field-supplied gas piping at

_ressures of I/2 psig or less, a unit connected

o such piping must be isohtted by manu_dly

closing the gas valve(s).

INSTALLATION

Unit is shipped in the vertical dischtuge configuration. To

convert to horizontal discharge application, remove duct open-

ing coveLs. Using the same screws, install covers on duct open-

ings in basepan of unit with insulation-side down. Seals around

openings must be tight. See Fig. 1.

Step 1 -- Provide Unit Support

ROOF CURB -- Assemble and install accessory roof curb in

accor&mce with instructions shipped with curb. See Fig. 2. In-

stall insulation, cant strips, roofing felt, and counter flashing as

shown. Ductwork must be attached to curb, not to the unit.

If electric control power or gas service is to be routed through

the basepan, attach the accessory thin-the-bottom service con-

nections to the basepan in accordance with the accessory instal-

lation instructions. Connections must be inst_dled before unit is

set on roof curb.

IMPORTANT: The gasketing of the unit to the roof curb is ]

critical for a watertight seal. Install gasket supplied with the I

roof curb as shown in Fig. 2. hnproperly applied gasket can

result in air leaks and poor unit performance.

Curb should be level. Unit leveling tolerances are shown in

Fig. 3. This is necessary for unit drain to lhnction properly.

Refer to Accessory Roof Curb [nstalhttion Instructions for

additional infomtation as required.

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

Catalog No. 04-53480013-01 Printed in U,S.A. Form 48HJ-33SI Pg 1 9-05 Replaces: 48HJ-29SI

SLAB MOUNT (Horizontal Units Only) -- Provide a level

concrete slab that extends a minimum of 6 in. beyond unit cab-

inet. Install a gravel apron in front of condenser-coil air inlet to

plevent grass and foliage from obstructing airflow.

NOTE: Horizontal units may be installed on a roof curb if

required.

ALTERNATE UNIT SUPPORT -- When the curb or adapter

cannot be used, suppoll unit with sleeper rails using unit curb

or adapter suppoll area. If sleeper rails cannot be used, suppoll

the long sides of the unit with a minimum of 3 equally spaced

4-in. x 4-in. pads on each side.

Step 2 -- Field Fabricate Ductwork -- Secure _fll

ducts to roof curb and building structure on veltical discharge

units. Do not connect ductwork to unit. For horizontal applica-

tions, field-supplied isolation flanges should be attached to hor-

izont_d discharge openings and _11ductwork should be secured

to the flanges. Insulate and weatherproof all external ductwork,

joints, and roof openings with counter flashing and mastic in

accor&mce with applicable codes.

Ducts passing through an unconditioned space must be in-

sulated and covered with a vapor barriel:

If a plenum return is used on a vertical unit, the return

should be ducted through the roof deck to comply with applica-

ble fire codes.

A minimum clearance is not required around ductwork.

Cabinet return-air static pressure (a negative condition) shall

not exceed 0.35 in. wg with economizer or 0.45 in. wg without

economizeE

These units are designed for a minimum continuous return-

air temperature in heating of 50 F (di_ bulb), or an intermittent

operation down to 45 F (di_ bulb), such as when used with a

night setback thermostat.

To operate at lower return-air temperatures, a field-supplied

outdoor air temperature control must be used to initiate both

stages of heat when the temperature is below 45 F. Indoor com-

fort may be compromised when these lower air temperatures

are used with insufficient heating temperature rise.

REMOVABLE HORIZONTAL

RETURN DUCT OPENING COVER '_k k

\\\\\

\

_ REMOVABLE HORIZONTAL

SUPPLY DUCT OPENING COVER

Fig. 1 -- Horizontal Conversion Panels

D ALT

CONNECTOR B C DRAIN GAS POWER CONTROL ACCESSORY

PKG. ACCY. HOLE POWER

CRBTMPWROO1A01 3/41' 3/4" [19] NPT

CRBTMPWROO2A01 [19] NPT 11/4" [31.7]

1'-911/16" 1'-4" 13/4', 1/2" 3/4"1119]NPT 1/21' 1/2"

CRBTMPWROO3A01 [551] [406] [44.5] [12.7] NPT [12.7] [12.7]

3/4" 11/4" [31.7]

CRBTMPWROO4A01 [19] NPT

o' 3"

1753

I

I

I

O" 3" I

[76] I

I

I

I

1" 1 7/16" I

E341 ]

+

O" O 7116"

nl]

(DOLT HEAD5)

O' 0 7/16"

HEADS)

C

I

I

'_4I jl /_ _" ",\ ",,\

C / ' J

1 _ I IX

\\ I iI

\1 i I

_B

SUPPLY AIR

OPENING C

Y

1" 7 13/1D3._

[504]

O'

E7B]

3' O"

[914]

O' 0 1/4"[73

8

SUPPLY AIR

VIEW

E

RETURN AIR••

"A-A"

B GASKET

(SUPPLIED WITH CURS)

DUCT

(FIELD DUPPLIED)

I

I 2" 7 5/D"

I[803]

-1 _

O" 0 7116" #

[II] I

(BOLT HEADD) #

#

O' 0 7/15"

n. _A

(BOLT #

#

GAD 5ERVICE

PLATE

• (SEE

$

I

I

HEAD OF DOLT TO BE ON

INDIDE OF FLANGE

ROOF CURB A UNIT

ACCESSORY SIZE

CRRFCURBOOIA01 ] 48HJ

I 2'-0" I 004-007

CRRFCURB002A01 [610]

NOTES:

1. Roof curb accessory is shipped disassembled.

2. Insulated panels.

3. Dimensions in [ ] are in millimeters.

4. Roof curb: galvanized steel.

5. Attach ductwork to curb (flanges of duct rest

on curb).

6. Service clearance: 4 ft on each side.

7. I_ Direction of airflow.

8. Connector packages CRBTMPWROO1A01

and 002A01 are for thru-the-curb type gas.

Packages CRBTMPWROO3A01 and 004A01

are for thru-the-bottom type gas connections.

TYPICAL (4) SIDES

O" 7/16"

FLASHING

(FIELD SUPPLIED)

o.

(APPROXD ..

5TRIP

(FIELD SUPPLIED)

MATERIAL

(FIELD 5UPPL[ED)

0

SECTION "C C"

SCALE 1:4

RIGID INSULATION o

(FIELD DUPPLIED) I I

OPENING FOR BADEPAN ENTRY

SERVICE. (SEE NOTE #D)

O' 2 1/2"

O' 3 1/4"

[83]_ O" 9"

DEE NOTE #2

1' 4 13/15"

[427] " 6"

(INSIDE) [152]

:IND[DE)

23/8 °

[Bl]

I

I

I

I

I

Fig. 2 -- Roof Curb Details

1/8"

E1705]

NOTE: CAMBRIDGEPORT "SURE LOCK" CORNER

FASTENING DEVICE IS ACCEPTABLE

ALTERNATE CONSTRUCTION.

UM ALLOWABLE

DIFFERENCE (in.)

B OlOCl C

0.5 1.0 1.0

Fig. 3 -- Unit Leveling Tolerances

Step 3 -- Install External Trap for Condensate

Drain -- The unit's 3h-in. condensate drain connections am

located on the bottom and side of file unit. Unit discharge

connections do not determine the use of drain connections;

either &ain connection can be used with vertic_d or horizontal

applications.

When using the standard side &ain connection, ensure the

plug (Red) in the ;alternate bottom connection is tight before

installing the unit.

To use the bottom &ain connection for a roof curb installa-

tion, relocate the factory-inst;dled plug (Red) from the bottom

connection to the side connection. Tile center drain plug looks

like a star connection, however it can be removed with a m/2-in.

socket drive extension. See Fig. 4. The piping for the conden-

sate &ain find external trap can be completed after the unit is in

place.

All units must have fin external trap for condensate drain-

age. Install a trap 4-in. deep and protect against freeze-up. If

drain line is installed downstream from the external trap, pitch

the line away from the unit fit 1 in. per 10 ft of run. Do not use a

pipe size smaller than the unit connection (3/4 in.). See Fig. 5.

Step 4 -- Rig and Place Unit-- Inspect unit for

transportation dmnage, and tile any claim with transpollation

agency. Keep unit upright and do not drop. Spreader bars are

not required if top crating is left on unit, and rollers may be

used to move unit across a roof. Level by using unit fl_lme as a

reference. See Table 1 and Fig. 6 for additional information.

Operating weight is shown in Table 1 and Fig. 6.

Lifting holes m'e provided in base rfdls as shown in Fig. 7.

Refer to rigging instructions on unit.

HORIZONTAL DRAIN PLUG

DRAIN OUTLET

NOTE: Drain plug is shown in factory-installed position.

Fig. 4- Condensate Drain Pan

All panels must be in place when rigging and lifting.

POSITIONING -- Maintain clefuance around find above unit

to provide minimum distance from combustible materials, prop-

er airflow, and service access. See Fig. 7.

Position unit on roof curb so that file following clearances are

maintained: 1/4 in. clearance between the roof curb find the base

rail inside the front and refu'. 0.0 in. clearance between the roof

curb and the base rail inside on the duct end of the unit. This will

result in the distance between the roof curb and the base rail

inside on file condenser end of the unit being approximately

equal to Fig. 2, section C-C.

Do not install unit in an indoor location. Do not locate unit

air inlets near exhaust vents or other sources of contmninated

air

Be sure flint unit is installed such that snow will not block

the combustion intake or flue outlet.

Unit may be installed directly on wood flooring or on

Class A, B, or C roof-covering material when roof curb is used.

Although unit is weafllerproof, guard against water from

higher level runoff and overhangs.

Ix>cate mechanical draft system flue assembly at least 48 in.

from an adjacent building or combustible materiffl. When unit

is located adjacent to public walkways, flue assembly must be

fit least 7 fl above grade.

NOTE: When unit is equipped with an accessory flue dis-

chmge deflector, allowable clearance is 18 inches.

Flue gas can deteriorate building materials. Orient unit such

that flue gas will not affect building materials.

Adequate combustion-air space must be provided for proper

operation of this equipment. Be sure that installation complies

with all local codes and Section 5.3, Air for Combustion find

Ventilation, NFGC (National Fuel Gas Code), ANSI (Ameri-

can National Standards Institute) Z223.1-1984 find addendum

Z223.1a-1987. In Canada, installation must be in accordance

with the CANI.BI49.1 and CANI.BI49.2 installation codes

for gas burning appliances.

Flue vent dischmge must have a minimum horizontal clear-

ance of 4 fl from electric and gas meters, gas regulators, find

gas relief equipment.

After unit is in position, remove shipping materials and rig-

ging skids.

\ OPEN 2" MINI IIIII

VENT / I I IIII

SEE

NOTE

_L_

.,,_ROOF

CURB

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

difference. A 4-in. trap is recommended.

Fig. 5 -- Condensate Drain Piping Details

36"- 54"

(914-1371)

POSITION ALL SEAL STRIPS

IN PLACE BEFORE POSITIONING

UNIT ON ROOF CURB,

DUCT END

SEE "A_DETAIL

PLACE UNIT ON CURB AS CLOSE

TO DUCT END AS POSSIBLE

DETAIL "A"

NOTES:

1. Place unit on curb as close as possible to the duct end.

2. Dimension in ( ) is in millimeters.

3. Hook rigging shackles through holes in base rail as shown in

detail "A." Holes in base rails are centered around the unit

center of gravity. Use wooden top skid when rigging to prevent

rigging straps from damaging unit.

4. Weights include base unit without economizer. See Table 1 for

unit operating weights with accessory economizer.

6. Weights include base unit without the Humidi-MiZer TM adaptive

dehumidification system. See Table 1 for unit operating weights

with the Humidi-MiZer system.

UNIT

48HJ

004

005

006

007

All panels must be in place when rigging.

OPERATING

WEIGHT

Ib kg

530 240

540 245

560 254

635 288

"A"

in. mm

73.69 1872

73.69 1872

73.69 1872

73.69 1872

"g"

in. mm

35.50 902

35.50 902

35.50 902

35.50 902

Fig. 6 -- Rigging Details

"C"

in. mm

33.31 847

33.31 847

33.31 847

33.31 847

Step 5-- Install Flue Hood -- Flue hood is shipped

screwed to the burner comp;utment access panel. Remove

from shipping location and, using screws provided, inst;dl flue

hood in location shown in Fig. 7 and 8.

For units being installed in California Air Quality Manage-

ment Districts which require NOx emissions of 40 nanogrmns/

joule or less, a low NOx unit must be installed.

NOTE: Low NOx units are available for 3 to 5 ton units.

Step 6-- Install Gas Piping -- Unit is equipped for

use with type of gas shown on nameplate. Refer to local

building codes, or in the absence of local codes, to

ANSI Z223.1-1984 and addendum Z223. IA- 1987 entitled

National Fuel Gas Code. In Canada, installation must be in

accordance with the CANI .B149.1 and CANI .B149.2 instal-

lation codes for gas burning appliances.

For natural gas applications, gas pressure at unit gas con-

nection must not be less than 4 in. wg or greater than 13 in. wg

while the unit is operating. On 48HJ005-007 high-heat units,

the gas pressure at unit gas connection must not be less than

5 in. wg or greater than 13 in. wg while the unit is operating.

For propane applications, the gas pressure must not be less than

5 in. wg or greater than 13 in. wg at the unit connection.

Size gas supply piping for 0.5 in. wg maximum pressure

drop. Do not use supply pipe sm_dler than unit gas connection.

Support gas piping as shown in the table in Fig. 9. For ex-

ample, a 3/4-in. gas pipe must have one field-fabricated support

bemn every 8 ft. Therefore, an 18-ft long gas pipe would have a

minimum of 3 support beams, and a 48-ft long pipe would

have a minimum of 6 support beams.

See Fig. 9 for typical pipe guide and locations of extermd

manual gas shutoff valve.

NOTE: If accessory thin-the-bottom connections and roof curb

are used, refer to the Thin-the-Bottom Accessory Installation

Instructions for information on power wiring and gas

connection piping. The power wiring, control wiring and gas

piping can be routed through field-drilled holes in the basepan.

The basepan is speci_dly designed and dimpled for drilling the

access connection holes.

When connecting the gas line to the unit gas v_dve, the

installer MUST use a backup wrench to prevent damage to

the v_dve.

Step 7 -- Make Electrical Connections

Unit cabinet must have an unintenupted, unbroken electri-

c_d ground to minimize the possibility of pel.sonal injury if

an electrical fault should occm: This ground may consist of

electric_d wire connected to unit ground lug in control com-

partment, or conduit approved for electrical ground when

installed in accordance with NEC (Natiomd Electrical

Code), ANSI/NFPA (National Fire Protection Associa-

tion), latest edition, and local electrical codes. Do not use

gas piping as an electrical ground Failure to follow this

warning could result in the installer being liable for per-

sonal injury of others.

FIELD POWER SUPPLY -- All units except 208/230-v

units are factory wired for the voltage shown on the nameplate.

If the 208/230-v unit is to be connected to a 208-v power sup-

ply, the transformer must be rewired by moving the black wire

from the 230-v terminal on the transformer and connecting it to

the 200-v terminal from the transformel:

Refer to unit label diagram for additional information.

Pigtails me provided for field service. Use factory-supplied

splices or UL (Underwriters' Laboratories) approved copper

connectoE

UNIT

48HJ_004

4BHJ_OO5

4BHJ_OO5

4BHJ_O07

STD. UNIT !CONOMI_ERI_ VERT. ECONIV (A) (SI (C) (D)

WEIGHT WEIGHT W/P.E. WEIGHT CORNER WEIGHT CORNER WEIGHT CORNER WEIGHT CORNER WEIGHT "J"

LB KG LB KG LB KG LB KG LB KG LB KG LB KG FT iN. MM

530 240 50 22,7 go 40,S 127 57,G 122 55,3 138 62.8 143 84,9 2" S 5/16" 84G.5

540 245 129 SS.5 124 55.2 141 54.0 145 55.2 ; ;

560 254 134 60.8 129 58.5 148 66.2 151 88.5

G35 288 152 68.S 147 55.7 1S5 74.8 171 77.5 3" 5 5/15" 1050

NOTES=

1. DIMENSIONS IN [ ] ARE IN MILLIMETERS.

2. _CENTER OF GRAVITY.

3. _ DIRECTION OF AIR FLOW.

4. ON VERTICAL DISCHARGE UNITS, DUCTWORK TO BE ATTACHED

TO ACCESSORY ROOF CURB ONLY. FOR HORIZONTAL DISCHARGE

UNITS FIELD SUPPLIED FLANGES SHOULD BE ATTACHED TO

HORIZONTAL DISCHARGE OPENINGS, AND ALL DUCTWORK SHOULD

BE ATTACHED TO THE FLANGES.

CORNER

S. MINIMUM CLEARANCE (LOCAL CODES OR JURISDICTION MAY

PREVAIL):

a. BETWEEN UNIT, FLUE SIDE AND COMBUSTIBLE SURFACES,

35 IN.,18 IN. WHEN USING ACCESSORY FLUE DISCHARGE DEFLTR.

b. BOTTOM OF UNIT TO COMBUSTIBLE SURFACES (WHEN NOT USING

CURB) 1 INCH.

BOTTOM OF BASE RAiL TO COMBUSTIBLE SURFACES (WHEN NOT

USING CURB) O INCHES.

c. CONDENSER COIL, FOR PROPER AiR FLOW, 3B iNCHES

ONE SIDE, 12 iNCHES THE OTHER. THE SIDE GETTING THE

GREATER CLEARANCE IS OPTIONAL.

d. OVERHEAD, SO iNCHES TO ASSURE PROPER CONDENSER FAN

OPERATION. 3" 9"

e. BETWEEN UNITS, CONTROL BOX SIDE, 42 IN. PER NEC. [1144]

F. BETWEEN UNIT AND UNGROUNDED SURFACES, CONTROL BOX

SIDE, 38 IN. PER NEC.

g. BETWEEN UNIT AND BLOCK OR CONCRETE WALLS AND OTHER

GROUNDED SURFACES, CONTROL BOX SIDE, 42 IN. PER NEC.

h. HORIZONTAL SUPPLY AND RETURN END, 0 INCHES WHEN THE

ALTERNATE CONDENSATE DRAIN IS USED.

B. WITH THE EXCEPTION OF THE CLEARANCE FOR THE CONDENSER

COIL AND COMBUSTION SIDE AS STATED IN NOTE #Sa, b,

AND c, A REMOVABLE FENCE OR BARRICADE REQUIRES NO

CLEARANCE.

7. UNITS MAY BE INSTALLED ON COMBUSTIBLE FLOORS MADE

FROM WOOD OR CLASS A, S, OR C ROOF COVERING MATERIAL

IF SET ON BASE RAIL. CORNER

8. THE VERTICAL CENTER OF GRAVITY IS 1' G'[457] UP FROM

FROM THE BOTTOM OF THE BASE RAIL.

971"7

IllS.B] TYP [104B]

8/1 G"

EG5_LEFT SIDE BISGONNEGTLooATION

O' 3 13/1B"

[97]

FACTORY

REAR

F [ LTER/ECONOM [ ZER ACCESS

ICONDENSER _L PANEL_

(BO_#"_4_f 4

c ft

FLUE HOOD

l" 4 5/16"

[414.5]

O' B S/B"

[168.23

BOTTOM POWER CHART:

THE5E HOLE5 REG'D FOR U5E

WITH ACCE550RY PACKAGES

CRBTMPWROO1A01, 2A01, 3A01, OR 4A01

THREADED WIRE REQ'D HOLE

CONDUIT 5]ZE USE SIZES (MAX.)

1/2" ACC. 7/8"[22.2]

1/2" 24V 7/B'[22.2]

3/4" (001,003) DOWER_ 1 1/8"[28.4]

1/4" (O02,004) DOWER_ 1 3/4"[44,4]

(003) 1/2"FPT GA5 1 1/4"[31.8]

EVAPORATORI I

COIL RETURN AIR OPENING

VERTIGALI,

' E/' I----i

ALTI CONDENSATE

, DRAIN OPENING I I

IN SASEPAN SUPPLY AIR

1" S 1/4" [438]

FOR ECONOM]$ER [V

(DISPOSABLE FILTERS)

BLOCKOFF

PANEL

_O' S3Zl@" RIGHT SIDE

[81]

CONNECTION SIZES

1 3/8" DIA. [3B] FIELD POWER SUPPLY HOLE

2" DIA. [51] POWER SUPPLY KNOCK OUT

DO r---1

VIEW 5 5

2"11

[BOB]

3" O"

[gl 4]

1S/1B"

[4S]

O" 3 SW1B"

[99.4]

FRONT

O" 3 1/16"

[78]_

G" 1 11/1G"

[1872]

L__IJ

O' I0 1S/1B" _.____j RETURN AIR

[278]

O" S 3/8"

_ [137]

l _°'2Ss_G'EBs

1 'G 1/2"_

1'53/4"[451] _ SUPPLY AIR _ [470]

O" S7/1B" 1" S 1/4" [Sl4] //

[13B] //4/`

,£4 O" 0 7/IS'Ell.l]

"C" O' 7 1/4" L

_[81] _[1B4] _ ECONOM[$ER IV

l' S SW1B" O" lO 13/15" O' 4 1/1B"

[439.7] W/ POWER EXHAUST

O' O 3/8"

CONTROL BOX/COMPRESSOR/

BURNER ACCESS

PANEL

2" 5 3/8

[74B. 2]

INDOOR FAN MOTOR

SLOWER ACCESS PANEL

_0" 3 5/IB"

Egl.O] 1" 2 7/8"

[375.B]

h

h 2" 1 ll/1G"

[852.5]

HOR[ h

x ZONTAL h

lli N h

III SUPPLY AIR Nil 7" h l' 8 1/4" [5143

OPENING j

III HORIZONTAL II h OUTSIDE AIR

IlL Ill h O" 0 7/8"

_0' S ll/1B"

[144.3]

RETURN AIR BAROMETRIC RELIEF DISCHARGE

_®1

O" [2141B7/1B "FORK TRUCK SLOTSo, 2 1/4"DIA O' 5 [14B]3/4" OUT_J_L'y[BSB'B]lAIR15/1B"

[573 OF PANEL

FRONT (TYPsPLACES) R IGHT S IDE E STD. CONDENSATE DRAIN

Fig. 7 -- Base Unit Dimensions

k -41

\

INTAKE LOUVERS FLUE OPENING

Fig. 8-- Flue Hood Details

i= X

9" MINIMUM CLEARANCE

4 SUPPORT*

FROM GAS METER

LEGEND

NFGC -- National Fuel Gas Code

*Field supplied,

NOTE: Follow all local codes.

SPACING OF SUPPORTS

STEEL PIPE SPACING OF SUPPORTS

NOMINAL DIAMETER (in.) X DIMENSION (ft)

1/2 6

a/4or I 8

1V4 or larger 10

Fig. 9 -- Gas Piping Guide (With Accessory

Thru-the-Curb Service Connections)

When installing units, provide a disconnect per NEC.

All field wiring must comply with NEC and local

requirements.

Install conduit through side panel openings indicated in

Fig. 7. Route power lines through connector to terminal con-

nections as shown in Fig. 10.

Voltage to compressor terminals during operation must be

within voltage range indicated on unit nmneplate (also see

Tables 2A-2D). On 3-phase units, voltages between phases

must be balanced within 2% and the current within 10%. Use

the formula shown in Tables 2A-2D, Note 3 to determine the

percent voltage imbalance. Operation on improper line voltage

or excessive phase imbalance constitutes abuse and may cause

&image to electric_d components. Such operation would inv_di-

&_te any applicable Carrier warranty.

NOTE: If accessory thin-the-bottom connections and roof curb

tu'e used, refer to the Thru-the-Bottom Accessory Installation

Instructions for information on power wiring and gas connec-

tion piping. The power wiring, control wiring and gas piping

can be routed through field-drilled holes in the baseptm. The

basepan is specially designed and dimpled for drilling the

access connection holes. See Fig. 2.

FIELD CONTROL WIRING -- Install a Carrier-approved

accessory thermostat assembly according to inst_dlation in-

structions included with the accessory. Ix)cate thermostat

assembly on a solid wail in the conditioned space to sense aver-

age temperature in accor&mce with thermostat installation

instructions.

Route thermostat cable or equivalent single leads of colored

wire from subbase termin_ds through connector on unit to low-

voltage connections (shown in Fig. 11A and 11B).

Connect thermostat wires to matching screw termimds of

low-voltage connection bozud. See Fig. 11A and I lB.

NOTE: For wire runs up to 50 fl, use no. 18 AWG (American

Wire Gage) insulated wire (35 Cminimum). For 50 to 75 It,

use no. 16 AWG insulated wire (35 Cminimum). For over

75 ft, use no. 14 AWG insulated wire (35 Cminimum). All

wire larger than no. 18 AWG cannot be directly connected to

the thermostat and will require a junction box and splice at the

thermostat.

Pass the control wires through the hole provided in the

corner post; then feed wires through the raceway built into the

corner post to the 24-v barrier located on the left side of the

control box. See Fig. 12. The raceway provides the UL re-

quired cle_u'ance between high and low-voltage wiring.

HEAT ANTICIPATOR SETTINGS -- Set heat anticipator set-

tings at 0.14 amp for first stage and 0.14 for second stage heat-

ing, when available.

Table 1 -- Physical Data

BASE UNIT 48 HJE/F/H/K]M/NO04 HJD/E/F/G/H/K]L/M/NO05 HJD/E/F/G/H/K]L/M/NO06 HJD/E/FO07

NOMINAL CAPACITY 3 4 5 6

OPERATING WEIGHT (Ib)

Unit 530 540 560 635

Humidi-MiZer TM Adaptive Dehumidification System 15 23 25 29

EconoMi$er IV 50 50 50 50

Roof Curb 115 115 115 115

COMPRESSOR Scroll

ouontity 1 I 1 I 1 I 1

Oil (oz) 42 53 50 60

REFRIGERANT TYPE R-22

Expansion Device Acutrol TM Metering Device

Operating Charge (Ib-oz)

Standard Unit 5-8 I10-2 I10-0 I12-8

Unit With Humidi-Mizer Adaptive Dehumidification System 12-5 16-8 20-5 23-14

CONDENSER FAN Propeller

Nominal Cfm 3500 3500 4100 4100

Motor Hp...Rpm V4 ,825 V4 ..825 V4_1100 V4_1100

Watts Input (Total) 180 180 320 320

CONDENSER COIL Enhanced Copper Tubes, Aluminum Lanced Fins

Rows...Fins/in, 1_,17 I2_.17 I2_,17 I 2.17

Total Face Area (sq ft) 146 165 165 21 3

EVAPORATOR COIL Enhanced Copper Tubes, Aluminum Double-Wavy Fins

Standard Unit

Rows.,,Finslin, 2._15 2_15 4_15 4_,15

Total Face Area (sq ft) 5,5 5.5 5.5 73

Unit with Humidi-Mizer Adaptive Dehumidification System 1_,17 2_.17 2_17

3,9 3.9 5.2

Rows,..Finslin,

Total Face Area (sq ft)

EVAPORATOR FAN

°uantity..,Size (in.)

Nominal Cfm

Maximum Continuous Bhp

Motor Frame Size

Fan Rpm Range

Motor Bearing Type

Maximum Fan Rpm

Motor Pulley Pitch Diameter A/B (in.)

Nominal Motor Shaft Diameter (in,)

Fan Pulley Pitch Diameter (in,)

Belt -- Type,.,Length (in.)

Pulley Center Line Distance (in.)

Speed Change per Full Turn of

Movable Pulley Flange (rpm)

Movable Pulley Maximum Full

Turns from Closed Position

Factory Setting -- Full Turns Open

Factory Speed Setting (rpm)

Fan Shaft Diameter at Pulley (in.)

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

1...10 x 10

1200

1.20

2.40

48

56

680-1044

1075-1455

Ball

2100

1.9/2.9

2.8/3.8

l&

%

4.5

4.5

1...A...36

1_.A_.39

10.0-12.4

65

65

5

6

3

31/2

826

1233

%

2...17

3.9

Centrifugal Type, Belt Drive

1...10 x 10

1600

1.20

2,40

48

56

770-1185

1075-1455

Ball

2100

1.9/2.0

2.8/3.8

1/2

5/s

4.0

4.0

1..,A.,.36

1,_A_.39

10.0-12.4

7O

65

5

6

3

31/2

936

1233

5/s

1,.,10 x 10

2000

1.30/2.40"

2,90

48/56"

56

1035-1460

1300-1685

Ball

2100

2.4/3.4

3.4/4,4

%

5/8

4.0

4.5

1..-4-.40

1,..A-.40

14.7-15.5

75

6O

6

5

3

31/2

1248

1396

5/8

1..,10 x 10

2400

2,40

2,90

56

56

1119-1585

1300-1685

Ball

2100

2,4/3,4

3,4/3,4

5/8

7&

4.0

4.5

1..,A,..38

1..,A_.40

14.7-15.5

95

60

5

5

3

1305

1396

5/8

LEGEND

Bhp-- Brake Horsepower

*Single phase/three phase,

tlndicates automatic reset,

**60,000 and 72,000 Btuh heat input units have 2 burners, 90,000 and

120,000 Btuh heat input units have 3 burners. 115,000 Btuh heat input units

and 150,000 Btuh Heat input units have 3 burners.

l-tAn LP kit is available as an accessory. Kit may be used at elevations as high

as 2000 ft, If an LP kit is used with Low NOx units, the Low N©x baffle must

be removed and the units will no longer be classified as Low N©x units.

IIThree-phase standard models have heating inputs as shown, Single-

phase standard models have one-stage heating with heating input values

as follows:

HJD005-006,HJE004 -- 72,000 Btuh

HJE005-006,HJF004 -- 115,000 Btuh

HJF005-006 -- 150,000 Btuh

***California compliant three-phase models.

tttCalifornia SCAQMD compliant low NO× models have combustion products

that are controlled to 40 nanograms per joule or less,

Table 1 -- Physical Data (cont)

BASE UNIT 48 HJE/F/H/K]M/N004 HJD/E/FIGIHIK/L/M/NO05 HJD/EIF/GIH/K/LIM/NO06 HJD/E/F007

FURNACE SECTION

Rollout Switch Cutout Temp (F)t

Burner Orifice Diameter (in, ..,drill size)**

Natural Gas -- Std

Liquid Propane -- Alttt

Thermostat Heat Anticipator Setting (amps)

208/230/460/575 v

First Stage

Second Stage

Gas Input (Btuh)

First Stage/Second Stage

Efficiency (Steady State) (%)

Temperature Rise Range

Manifold Pressure (in. wg)

Natural Gas -- Std

Liquid Propane -- Alttt

Maximum Static Pressure (in, wg)

Field Gas Connection Size (in.)

HIGH-PRESSURE SWITCH (psig)

195

HJE.113...33

HJF,113..,33

HJH,113-.33

HJK,113-.33

HJM .102,,.38

HJN.102-.38

HJE,089.,.43

HJF,089..,43

HJH,089.,.43

HJK,089-.43

HJM .082,.,45

HJN ,082,,.45

,14

.14

195

HJD.113...33

HJE .113...33

HJF.129-.30

HJG .113...33

HJH.113...33

HJK.129...30

HJL.102...38

HJM ,102,..38

HJN.116...32

HJD.089...43

HJE .089...43

HJF.104...37

HJG .089...45

HJH .089...45

HJK.102...38

HJL.082-.45

HJM .082.,.45

HJN.094...42

.14

.14

195

HJD.113.-33

HJE .113.-33

HJF.129-.30

HJG .113...33

HJH .113...33

HJK.129.-30

HJL.102.-38

HJM .102...38

HJN.116-.32

HJD.089.-43

HJE .089...43

HJF.104...37

HJG .089...43

HJH .089...43

HJK.104.-37

HJL.082-.45

HJM.082...45

HJN .094.,.42

.14

.14

HJEll50,000/ 72,000

HJFI182,000/115,000

HJH***--/ 72,000

HJK***--/115,000

HJMTTT--/ 60,000

HJNttt--/ 90,000

HJE 82,8

HJF80

HJH 82

HJK 80

HJM 80.2

HJN 81

HJE 25-55

HJF 55-85

HJH 25-55

HJK 55-85

HJM 20-50

HJN 30-60

3.5

3.5

1.0

1/2

HJDll 50,000/ 72,000

HJEII 82,000/115,000

HJFl1120,000/150,000

HJG***--/ 72,000

HJH*** --/115,000

HJK*** --/150,000

HJLttt --/ 60,000

HJMttt--/ 90,000

HJNttt --/120,000

HJD 82.8

HJE 81

HJF 80.4

HJG 82

HJH 81

HJK 80

HJL 80.2

HJM 81

HJN 80.7

HJD 25-25

HJE 35-65

HJF 50-80

HJG 25-55

HJH 35-85

HJK 50-80

HJL 20-50

HJM 30-60

HJN 40-70

3.5

3.5

1.0

HJDII 50,000/ 72,000

HJEII 82,000/115,000

HJFI1120,000/150,000

HJG***--/ 72,000

HJH*** --/115,000

HJK*** --/150,000

HJLttt--/ 60,000

HJMftt--/ 90,000

HJNttt --/120,000

HJD 82.8

HJE 81

HJF 80.4

HJG 82

HJH 81

HJK 80

HJL 80.2

HJM 81

HJN 80.7

HJD 25-55

HJE 35-65

HJF 50-80

HJG 25-55

HJH 35-65

HJK 50-80

RJL 20-50

HJM 30-60

HJN 40-70

3.5

3.5

1.0

l&

Standard Compressor Internal Relief

Cutout

Reset (Auto.)

LOSS-OF-CHARGE SWITCH/LOW=PRESSURE

SWITCH (Liquid Line) (psig)

Cutout

Reset (Auto.)

FREEZE PROTECTION THERMOSTAT

Opens (F)

Closes (F)

OUTDOOR-AIR INLET SCREENS

RETURN-AIR FILTERS

Quantity...Size (in.)

LEGEND

Bhp-- Brake Horsepower

*Single phase/three phase.

tlndicates automatic reset.

**60,000 and 72,000 Btuh heat input units have 2 burners. 90,000 and

120,000 Btuh heat input units have 3 burners. 115,000 Btuh heat input units

and 150,000 Btuh Heat input units have 3 burners.

ttAn LP kit is available as an accessory. Kit may be used at elevations as high

as 2000 ft. If an LP kit is used with Low NOx units, the Low NOx baffle must

be removed and the units will no longer be classified as Low N©x units.

450 _+50

428

32O

7_+3

22 _+5

195

HJD,113-,33

HJE ,113-.33

HJF,129.-30

HJD .089_.43

HJE ,089-.43

HJF.104.-37

.14

.14

HJD 50,000/ 72,000

HJE 82,000/115,000

HJF 120,000/150,000

HJD 82

HJE 81

HJF 80

HJD 25-55

HJE 35-65

HJF 50-80

3.5

3.5

1.0

1/2

30_+5

45_+5

Cleanable. Screen quantity and size varies with option selected.

Throwaway

2._16x25x2 I 4_.16x 16x2

IIThree-phase standard models have heating inputs as shown. Single-

phase standard models have one-stage heating with heating input values

as follows:

HJD005-006,HJE004 -- 72,000 Btuh

HJE005-006,HJF004- 115,000 Btuh

HJF005-006- 150,000 Btuh

***California compliant three-phase models.

tttCalifornia SCAQMD compliant low NOx models have combustion products

that are controlled to 40 nanegrams per joule or less.

BLK

1

YEL

208/230-1-60

(SIZES 48HJ004-006)

EQUIP

GND

F--t_I

i

1

PI ELD POWER SUPPLY

_ .L .L L__

FDISOON.EDT7

PER NEC

L* .... J

BLK _ TO COMP

I

,,

I;%F'i'

FIELD POWERSUPPLY

_.L.L .L --

208/230-3-60460-3-60 _F-DISCONNEcT 7

(SIZES 48HJ004, 005) L.. PERNEC ,{

BLK _ TO COMP

[;% I

I

I

FIELD POWERSUPPLY

r -- a-.L L--7

575-3-60 _ DISCONNECT I

(SIZES 48HJ004, 005) PER NECL ..... J

BLK _ TO COMP

i ' !

ii I

I,

FIELD POWER SUPPLY

208/230-3-50 _,.L_ .L --

460-3-80 ,r-DISCONNECT 7

(SIZES 48HJ006, 007) LZE._"_"EC_:

BLK ---_J TO TB2

I

I®®1

1

I

FIELD POWER SUPPLY

_I.LL__

575-3-50 [-DI SCONNECT 7

(SIZES48HJ006, 007) LPE?NEC j

Fig. 10 -- Power Wiring Connections

LEGEND

C -- Contactor

COMP -- Compressor

EQUIP -- Equipment

GND -- Ground

IFC -- Indoor (Evaporator)

Fan Contactor

NEC -- National Electrical Code

TB -- Terminal Block

COOL STAGE 1

FAN

HEAT STAGE 1

COOL STAGE 2

HEAT STAGE 2

24 VAC HOT

24 VAC COM

N/A

OUTDOOR AIR $1

SENSOR $2 4

]

Y/Y2 - - f- -

O/W2 • I

F__J

R

m

R

G

Y1

Y2

W1

W2

C

IPD/X

WIRE

CONNECTIONS

TO

LOW-VOLTAGE

SECTION

THERMOSTAT DIPSWITCH SETTINGS

ON

A B C D

LEGEND

Field Wiring

NOTE: Underlined letter indicates active thermostat output when

configured for A/C operation.

Fig. 11A -- Low-Voltage Connections With or

Without Economizer or Two-Position Damper

CONTROL THERMOSTAT CONTROL

CONNECTION CONNECTION

BOARD BOARD

{_ RMTOCC T_i *_1_'- _YY11/_

CMPSAFE1 !_ {£_i '_ {:_)

(Wl_, SFS 4 = /'W2_ (W2}

NOT USED i 7 G \

,\/\/

( %?x {:::_}

Fig. 11B-- Low Voltage Connections

(Units with PremierLink TM Controls)

RACEWAY LOW VOLTAGE INTEGRATED GAS UNIT

CONNECTIONS CONTROLLER (IGC)

HOLE IN END PANEL (HIDDEN)

Fig. 12- Field Control Wiring Raceway

10

UNIT

48HJ

OO4

(3 Tons)

005

(4 Tons)

006

(5 Tons)

0O7

(6 Tons)

Table 2A -- Electrical Data -- Standard Motor Units Without Electrical Convenience Outlet

VOLTAGE COMPRESSOR OFM COMBUSTION POWER SUPPLY* MINIMUM UNIT

NOMINAL VOLTAGE RANGE (each) (each) IFM FAN MOTOR DISCONNECT SIZEt

(V-Ph-Hz) Min Max Qty RLA LRA FLA FLA FLA MCA MOCP** FLA LRA

208/230-1-60 187 254 16.0 88.0 0.7 4.9 .60 25.6/25.6 30/30 25/25 101/101

208/230-3-60 187 254 10.3 77.0 0.7 4.9 .60 18.5/18.5 25/25 18/18 90/90

1

460-3-60 414 508 8.1 39.0 0.4 2.2 .30 9.0 20 9 46

575-3-60 518 632 4.2 31.0 0.4 2.2 .30 7.3 20 7 37

208/230-1-60 187 284 23.7 126.0 0.7 4.9 .60 35.2/35.2 45/45 34/34 139/139

208/230-3-60 187 254 13.5 93.0 0.7 4.9 .60 22.5/22.8 30/30 22/22 106/106

1

460-3-60 414 508 6.4 46.5 0.4 2.2 .30 10.6 20 10 54

575-3-60 518 632 6.4 40.0 0.4 2.2 .30 10.1 20 10 46

208/230-1-60 187 254 28.8 169.0 1.5 8.8 .60 46.3/46.3 60/60 45/45 216/216

208/230-3-60 187 284 17.3 123.0 1.5 5.8 .60 28.9/28.9 38/35 28/28 168/168

1

460-3-60 414 508 9.0 62.0 0.8 2.6 .30 14.7 20 14 84

575-3-60 518 632 7.1 50.0 0.8 2.6 .30 11.6 20 12 68

208/230-3-60 187 254 20.5 186.0 1.4 5.8 .60 32.8/32.8 40/40 32/32 200/200

460-3-60 414 508 1 9.6 75.0 0.6 2.6 .30 15.2 20 15 97

575-3-60 518 632 7.7 56.0 0.6 2.6 .30 12.2 20 12 74

UNIT

48HJ

004

(3 Tons)

005

(4 Tons)

006

(5 Tons)

007

(6 Tons)

Table 2B -- Electrical Data -- Standard Motor Units With Electrical Convenience Outlet

VOLTAGE COMPRESSOR OFM COMBUSTION POWER SUPPLY

NOMINAL VOLTAGE RANGE (each) (each) IFM FAN MOTOR WITH OUTLET*

(V-Ph-Hz) Min Max Qty RLA LRA FLA FLA FLA MCA MOCP**

208/230-1-60 187 254 16.0 88.0 0.7 4.9 .60 31.6/31.6 38/38

208/230-3-60 187 254 10.3 77.0 0.7 4.9 .60 24.5/24.5 30/30

1

460-3-60 414 508 5.1 39.0 0.4 2.2 .30 11.7 20

575-3-60 818 632 4.2 31.0 0.4 2.2 .30 9.5 20

208/230-1-60 187 284 23.7 126.0 0.7 4.9 .60 41.2/41.2 50/80

208/230-3-60 187 254 13.5 93.0 0.7 4.9 .60 28.8/28.5 35/35

1

460-3-60 414 508 6.4 46.5 0.4 2.2 .30 13.3 20

575-3-60 518 632 6.4 40.0 0.4 2.2 .30 12.2 20

208/230-1-60 187 284 28.8 169.0 1.5 8.8 .60 52.3/52.3 60/60

208/230-3-60 187 254 17.3 123.0 1.5 5.8 .60 34.9/34.9 40/40

1

460-3-60 414 508 9.0 62.0 0.8 2.6 .30 17.4 20

575-3-60 518 632 7.1 50.0 0.8 2.6 .30 13.8 20

208/230-3-60 187 284 20.5 156.0 1.4 8.8 .60 38.8/38.8 45/45

460-3-60 414 508 1 9.6 75.0 0.6 2.6 .30 17.9 20

575-3-60 518 632 7.7 56.0 0.6 2.6 .30 14.3 20

MINIMUM UNIT

DISCONNECT SIZEt

FLA LRA

30/30 106/106

24/24 98/98

11 48

9 38

39/39 144/144

27/27 111/111

13 56

12 47

50/50 221/221

34/34 173/173

17 87

13 70

37/37 205/205

17 99

14 75

LEGEND

FLA -- Full Load Amps

HACR -- Heating, Air Conditioning and

Refrigeration

IFM -- Indoor (Evaporator) Fan Motor

LRA -- Locked Rotor Amps

MCA -- Minimum Circuit Amps

MOCP -- Maximum Overcurrent Protection

NEC -- National Electrical Code

OFM -- Outdoor (Condenser) Fan Motor

RLA -- Rated Load Amps

UL -- Underwriters' Laboratories

*The values listed in this table do not include power exhaust. See table at

right for power exhaust requirements.

tUsed to determine minimum disconnect per NEC.

**Fuse or HACR circuit breaker.

NOTES:

1. In compliance with NEC requirements for multimotor and combination

load equipment (refer to NEC Articles 430 and 440), the overcurrent

protective device for the unit shall be fuse or HACR breaker. The UL,

Canada units may be fuse or circuit breaker.

2. Electrical data based on 95 F ambient outdoor-air temperature _+10%

voltage.

3, Unbalanced 3-Phase Supply Voltage

Never operate a motor where pbase imbalance in supply voltage is

greater than 2%. Use the following formula to determine the pereent

voltage imbalance.

% Voltage Imbalance

= 100 x max voltage deviation from average voltage

average voltage

Example: Supply voltage is 460-3-60.

AB C AB = 452 V

BC = 464 v

_) AC = 455 v

Average Voltage = 452 + 464 + 455

3

1371

3

= 457

Determine maximum deviation from average voltage.

(AB) 457 - 482 = 5 v

(BC) 464 - 487 = 7 v

(AC) 487 -488 = 2 v

Maximum deviation is 7 v.

Determine percent of voltage imbalance.

7

% Voltage Imbalance = 100x

= 1.83%

This amount of phase imbalance is satisfactory as it is below the maxi-

mum allowable 2%.

I MPORTANT: If the supply voltage phase imbalance is more than I

2%, contact your local electric utility company immediately. I

POWER EXHAUST ELECTRICAL DATA

POWER EXHAUST MCA MCA MCA MOCP

(for separate

PART NO. (230 v) (460 v) (575 v) power source)

CRPWREXH021A01 N/A 0.9 N/A 15

CRPWREXH022A01 3.3 N/A 1.32 15

CRPWREXH023A01 N/A 1.8 N/A 15

CRPWREXH028A01 1.7 N/A 0.68 15

CRPWREXH029A01 N/A 1.0 N/A 15

CRPWREXH030A01 1.6 N/A 0.64 15

N/A -- Not available

NOTE: If a single power source is to be used, size wire to include power

exhaust MCA and M©CR

Check MCA and MOCP when power exhaust is powered through the unit.

Determine the new MCA including the power exhaust using the following

formula:

MCA New = MCA unit only + MCA of Power Exhaust

For example, using a 48HJD006---5 unit with MCA = 28.9 and MOCP = 35.

with CRPWREXH030A01 power exhaust.

MCA New = 28.9 amps + 1.6 amps = 30.5 amps

If the new MCA does not exceed the published MOCE then M©CP would net

change. The MOCP in this example is 35 amps and the MCA New is below

35; therefore the MOCP is acceptable. If "MCA New" is larger than the pub-

lished MOCE raise the MOCP to the next larger size. For separate power, the

MOCP for the power exhaust will be 15 amps per NEC.

))

Table 20 -- Electrical Data -- High-Static Motor Units Without Electrical Convenience Outlet

UNIT

48HJ

O04

005

006

007

NOMINAL VOLTAGE

VOLTAGE RANGE

(V-Ph-Hz) Min Max

208/230-3-60 187 284

460-3-60 414 508

575-3-60 518 632

208/230-3-60 187 254

460-3-60 414 508

875-3-60 818 632

208/230-3-60 187 254

460-3-60 414 508

575-3-60 518 632

208/230-3-60 187 254

460-3-60 414 508

575-3-60 518 632

COMPRESSOR MINIMUM UNIT

(each) DISCONNECT

SIZEt

Qty RLA LRA FLA FLA RLA MCA MOCP** FLA LRA

10.3 77.0 0.7 5.8 0.6 19.4 28 19 120

1 5.1 39.0 0.4 2.6 0.3 9.4 20 9 60

4.2 31.0 0.4 2.6 0.3 7.7 20 8 48

13.5 93.0 0.7 5.8 0.6 23.4 30 23 136

1 6.4 46.5 0.4 2.6 0.3 11.0 20 11 68

6.4 40.0 0.4 2.6 0.3 10.4 20 10 57

17.3 123.0 1.5 7.5 0.6 30.6 35 30 187

1 9.0 62.0 0.8 3.4 0.3 15.5 20 15 94

7.1 50.0 0.8 3.4 0.3 12.2 20 12 76

20.5 156.0 1.4 7.5 0.6 34.8 40 34 219

1 9.6 75.0 0.6 3.4 0.3 16 20 16 107

7.7 56.0 0.6 3.4 0.3 12.8 20 13 81

OFM IFM COMBUSTION POWER SUPPLY*

(each) FAN MOTOR

Table 2D -- Electrical Data -- High-Static Motor Units With Electrical Convenience Outlet

UNIT NOMINAL

48HJ VOLTAGE

(V-Ph-Hz)

208/230-3-60

004 460-3-60

575-3-60

208/230-3-60

005 460-3-60

575-3-60 518

208/230-3-60 187

006 460-3-60 414

575-3-60 518

208/230-3-60 187

007 460-3-60 414

575-3-60 518

LEGEND

FLA -- Full Load Amps

VOLTAGE COMPRESSOR OFM IFM COMBUSTION

RANGE (each) (each) FAN MOTOR

Min Max Qty RLA LRA FLA FLA RLA

187 254 10.3 77.0 0.7 5.8 0.6

414 508 1 5.1 39.0 0.4 2.6 0.3

518 632 4.2 31.0 0.4 2.6 0.3

187 254 13.8 93.0 0.7 5.8 0.6

414 508 1 6.4 46.5 0.4 2.6 0.3

632 6.4 40.0 0.4 2.6 0.3

254 17.3 123.0 1.5 7.5 0.6

508 1 9.0 62.0 0.8 3.4 0.3

632 7.1 50.0 0.8 3.4 0.3

254 20.5 156.0 1.4 7.5 0.6

508 1 9.6 75.0 0.6 3.4 0.3

632 7.7 56.0 0.6 3.4 0.3

Maximum deviation is 7 v.

HACR -- Heating, Air Conditioning and

Refrigeration

IFM -- Indoor (Evaporator) Fan Motor

LRA -- Locked Rotor Amps

MINIMUM UNIT

POWER SUPPLY* DISCONNECT

SIZEt

MCA MOCP** FLA LRA

28.4 30 28 124

12.1 20 12 63

9.8 20 10 50

29.4 35 29 140

13.7 20 13 70

12.6 20 12 59

36.6 40 36 192

18.2 20 18 96

14.4 20 14 77

40.5 45 39 224

18.7 25 18 109

15.0 20 15 83

Determine percent of voltage imbalance.

7

% Voltage Imbalance =100 x 4_

= 1.53%

MCA -- Minimum Circuit Amps C @

MOCP -- Maximum Overcurrent Protection

NEC -- National Electrical Code

OFM -- Outdoor (Condenser) Fan Motor I1__

RLA -- Rated Load Amps ,w_,la

UL -- Underwriters' Laboratories

*The values listed in this table do not include power exhaust. See table at

right for power exhaust requirements.

l-Used to determine minimum disconnect per NEC.

**Fuse or HACR circuit breaker.

NOTES:

1. In compliance with NEC requirements for multimotor and combination

load equipment (refer to NEC Articles 430 and 440), the overcurrent

protective device for the unit shall be fuse or HACR breaker. The UL.

Canada units may be fuse or circuit breaker.

2. Electrical data based on 95 F ambient outdoor-air temperature _+10%

voltage.

3. Unbalanced 3-Phase Supply Voltage

Never operate a motor where phase imbalance in supply voltage is

greater than 2%. Use the following formula to determine the pement

voltage imbalance.

% Voltage Imbalance

= 100 x max voltage deviation from average voltage

average voltage

Example: Supply voltage is 460-3-60.

AB c AB = 452 v

BC = 464 v

(_ AC = 455 v

Average Voltage = 452 + 464 + 458

3

1371

3

= 457

Determine maximum deviation from average voltage.

(AB) 457 - 482 = 8 v

(BC) 464 - 457 = 7 v

(AC) 487 - 488 = 2 v

This amount of phase imbalance is satisfactory as it is below the maxi-

mum allowable 2%.

I MPORTANT: If the supply voltage phase imbalance is more than I

2%, contact your local electric utility company immediately. I

POWER EXHAUST ELECTRICAL DATA

POWER EXHAUST MCA MCA MCA MOCP

PART NO, (230 v) (460 v) (875 v) (for separate

power source)

CRPWREXH021A01 N/A 0.9 N/A 15

CRPWREXH022A01 3.3 N/A 1.32 15

CRPWREXH023A01 N/A 1.8 N/A 15

CRPWREXH028A01 1.7 N/A 0.88 15

CRPWREXH029A01 N/A 1.0 N/A 15

CRPWREXH030A01 1.8 N/A 0.84 15

N/A -- Not available

NOTE: If a single power source is to be used, size wire to include power

exhaust MCA and MOCR

Check MCA and MOCP when power exhaust is powered through the unit.

Determine the new MCA including the power exhaust using the following

formula:

MCA New = MCA unit only + MCA of Power Exhaust

For example, using a 48HJD006---5 unit with MCA = 28.9 and MOCP = 38,

with CRPWREXH030A01 power exhaust.

MCA New = 28.9 amps + 1.6 amps = 30.5 amps

If the new MCA does not exceed the published MOCE then MOCP would not

change. The M©CP in this example is 35 amps and the MCA New is below

35; therefore the M©CP is acceptable. If "MCA New" is larger than the pub-

lished MOCP, raise the MOCP to the next larger size. For separate power, the

MOCP for the power exhaust will be 15 amps per NEC.

)2

Step 8 -- Adjust Factory-Installed Options

COBRA TM ENERGY RECOVERY UNITS -- Please lefer

to the supplement provided for information on installing and

operating the factory optional COBRA Energy Recovery

Units. These units are equipped with a factou-installed energy

recoveUunit and have different installation and operation pro-

cedums than the stan&u'd unit.

HUMIDI-MIZER TM ADAPTIVE DEHUMIDIFICATION

SYSTEM--Humidi-MiZer system operation can be con-

trolled by field installation of a Carrie>approved humidistat

(Fig. 13).

NOTE: A light commercial Thermidistat TM device (Fig. 14)

can be used instead of the humidistat if desimdi The Thermi-

distat device includes a thermostat and a humidistat. The humi-

distat is norm',flly used in applications where a temperature

sensor is already provided (units with PremierLink TM control).

To install the humidistat:

1. Route humidistat cable through hole provided in unit

comer post.

2. Feed wires through the raceway built into the corner post

to the 24-v bamer located on the left side of the control

box. See Fig. 12. The raceway provides the UL-mquimd

clemance between high-voltage and low-voltage wiring.

3. Use a wire nut to connect humidistat cable into low-

voltage wiring as shown in Fig. 15.

To install Thermidistat device:

1. Route Thermidistat cable through hole provided in

unit corner post.

2. Feed the wires through the raceway built into the

corner post to the 24-v barrier located on the left

side of the control box. See Fig. 12. The raceway

provides the UL-required clearance between high

and low voltage wiring.

3. A field-supplied relay must be installed between the

thermidistat and the Humidi-Mizer circuit (recom-

mended relay: HN612KK324). See Fig. 16. The

relay coil is connected between the DEHUM output

and C (common) of the unit. The relay controls the

Humidi-MiZer solenoid valve and must be wired

between the Humidi-MiZer fuse and the low-pres-

sure switch. Refer to the installation instructions

included with the Carrier Light Commercial Ther-

midistat device for more information.

MANUAL OUTDOOR-AIR DAMPER -- The outdoor-air

hood and screen me attached to the basepan at the bottom of

the unit for shipping.

Assemb122:

1. Determine quantity of ventilation required for building.

Record amount for use in Step 8.

2. Remove and save outdoor air opening panel and screws.

See Fig. 17.

Fig. 13- Accessory Field-Installed Humidistat

Fig. 14 -- Light Commercial Thermidistat Device

3. Remove evaporator coil access panel. Separate hood and

screen from basepan by removing the 4 screws securing

them. Save all screws.

4. Replace ewtporator coil access panel.

5. Place hood on front of outdoor air opening panel. See

Fig. 18 for hood details. Secure top of hood with the

4 screws removed in Step 3. See Fig. 19.

6. Remove and save 6 screws (3 on each side) from sides of

the manual outdoo>air &_mpel:

7. Align screw holes on hood with screw holes on side of

manual outdoo>air dampel: See Fig. 18 and 19. Secure

hood with 6 screws from Step 6.

8. Adjust minimum position setting of the damper blade by

adjusting the manual outdoo>air adjustment screws on

the fiont of the dmnper blade. See Fig. 17. Slide blade

vertically until it is in the appropriate position determined

by Fig. 20. Tighten screws.

9. Remove and save screws cunently on sides of hood.

Insert screen. Secure screen to hood using the screws. See

Fig. 19.

13

CB -- Circuit Breaker

CR -- Cooling Relay

DHR -- Dehumidify Relay

DSV -- Discharge Solenoid Valve

HR -- Heater Relay

LPS -- Low Pressure Switch

LSV -- Liquid Solenoid Valve

LTLO -- Low Temperature Lockout

Field Splice

BLK BIU

_TRAN

3.2 AHPS

_REO I

PNK LSV]

L ILO IIR1 BLK _BLK

•_1_" PNK"O-_-.,,_O-PNK BRN "I

I--.Z.J

CRI BRN--_

Term,ha, (_-n:]: d_LPN<'_ 1 _LPS1 LBLK'E_BLK"_LBV2

LEGEND O P K BLU_ I'm

ke _ OR2 __ _ ..T--BRN-*,

• Splice _ _'_ 0RN "_3L 0R";

Factory Wiring i,_ BL U,_ I pDSV2

/LPS2

Field Control Wiring 6"E_BLU'_O_BLUJ TB

Field Power Wiring I_:x_--

Fig. 15- Typical Humidi-MiZer TM Adaptive Dehumidification System

Humidistat Wiring (208/230-V Unit Shown)

LCT

TSTATWIRES

......

EE]-

R1

LEGEND

CB -- Circuit Breaker

LCT i Light Commercial Thermidistat TM Device

LLSV i Liquid Line Solenoid Valve

LTLO i Low Temperature Lockout

ROOFTOPUNIT

//7-- --

PINK _RE_D_ 24V

HUMIDI-MIZER SYSTEM

Fig. 16- Typical Rooftop Unit with Humidi-Mizer

Adaptive Dehumidification System with Thermidistat Device

PINK_ . FROM

HUMIDI-MIZER SYSTEM

LLSV

OUTDOOR

AIR OPENING

PANEL

3 SCREWS

(SIDE) _

MANUAL

OUTDOOR-AtR _/

ADJUSTMENT

SCREWS

POSITION SE_ING DAMPER

SCALE BLADE

Fig. 17 -- Damper Panel with Manual Outdoor-Air

Damper Installed

HOOD TOP SCREWS

(HIDDEN) _

SCREWS

(SCREEN HOLDERS)

HOOD SIDES AND TOP-

ASSEMBLED

HOOD

SIDE

Fig. 18 -- Outdoor-Air Hood Details

14

SCREW

HOLES

(TOP)

HOOD_

SCREEN

LOCATIOK

(SCREEN

NOT SHOWN)

Fig. 19 -- Outdoor-Air Damper with

Hood Attached

0.6

0.5

_" 0,4

UI

o3

03

LU

m 0.3

13.

LU

>

0.2

Z

o

o 1 2 3 4 5 6 7

OUTDOOR AIRFLOW (cfm x 100)

Fig. 20 -- Outdoor-Air Damper Position Setting

CONVENIENCE OUTLET -- An optiomfl convenience out-

let provides power for rooftop use. For maintenance personnel

safety, the convenience outlet power is off when the unit dis-

connect is off. Adjacent unit outlets may be used for service

tool s.

NOVAR CONTROLS -- Optiomd Novar controls (ETM

3051 ) me available for replacement or new construction jobs.

PREMIERLIN K TM CONTROL -- The PremierLink control-

ler is compatible with Carrier Comfort Network® (CCN)

devices. This control is designed to tdlow users the access and

ability to change factory-defined settings, thus expanding the

function of file standmd unit control board. Carder's diagnostic

standard tier display tools such as Navigato( r_'_or Scrolling

Marquee can be used wifli the PremierLink controllec

The PremierLink controller (see Fig. 21A and 21B) requires

the use of a Carrier electronic thermostat or a CCN connection

for time broadcast to initiate its internal timeclock. This is

necessmy for broadcast of time of &ty functions (occupied/

unoccupied). No sensors are supplied with the field-mounted

PremierLink control. The factory-installed PremierLink con-

trol includes only the supply-air temperature (SAT) sensor and

file outdoor air temperature (OAT) sensor as stan&lrd. An

indoor air quality (CO2) sensor can be added as an option.

Refer to Table 3 for sensor usage. Refer to Fig. 22 for

PremierLink controller wiring. The PremierLink control may

be mounted in the control panel or tin mea below the control

panel.

NOTE: PremierLink controller versions 1.3 and later are

shipped in Sensor mode. If used with a thermostat, the Pre-

mierLink controller must be configured to Thermostat mode.

Insttfll file Supply Air Temperature (SAT) Sensor -- When the

unit is supplied with a factory-mounted PremierLink control,

the supply-air temperature (SAT) sensor (33ZCSENSAT) is

factory-supplied and wired. The wiring is routed from the

PremierLink control over the control box, flirough a grommet,

into the fan section, down along the back side of the fan, and

along the fan deck over to the supply-air opening.

The SAT probe is wire-tied to file supply-air opening (on the

horizontal opening end) in its shipping position. Remove the

sensor for installation. Re-position the sensor in the flange of

file supply-air opening or in the supply air duct (as required by

local codes). Drill or punch a l/2-in, hole in the flange or duct.

Use two field-supplied, self-drilling screws to secure the sensor

probe in a horizontal orientation.

NOTE: The sensor must be mounted in the dischmge airstream

downstream of the cooling coil and any heating devices. Be

sure the probe tip does not come in contact with tiny of the unit

or heat surfaces.

Outdoor Air Temperature (OAT) Sensor -- When the unit is

supplied with a factoly-mounted PremierLink control, the

outdoor-air temperature (OAT) sensor is factory-supplied and

wired.

Install the Indoor Air Quality (COe) Sensor -- Mount the

optional indoor air quality (CO2) sensor according to manufac-

turer specifications.

A separate field-supplied transformer must be used to pow-

er the CO2 sensoc

Wire the CO2 sensor to the COM and IAQI terminals of J5

on the PremierLink controllec Refer to the PremierLink Instal-

lation, Start-up, and Configuration Instructions for detailed

wiring and configuration information.

Enthalpy Sensors and Control -- The enthalpy control

(HH57AC077) is supplied as a field-installed accessory to be

used with the EconoMiSer2 damper control option. The out-

door air enthalpy sensor is part of the enthalpy control. The

septu'ate field-installed accessory return air enthalpy sensor

(HH57AC078) is required for differentkd enthalpy control.

NOTE: The enthalpy control must be set to the "D" setting for

differential enthalpy control to work properly.

The enthtdpy control receives the indoor and return

enthalpy from the outdoor and return air enthtdpy sensors and

provides a @ contact switch input to the PremierLink control-

lec Locate the controller in place of an existing economizer

controller or near the actuatoc The mounting plate may not be

needed if existing bracket is used.

A closed contact indicates that outside air is preferred to the

return aic An open contact indicates that the economizer

should remain tit minimum position.

15

Table 3- PremierLink TM Sensor Usage

OUTDOOR AIR RETURN AIR OUTDOOR AIR RETURN AIR

APPLICATION TEMPERATURE SENSOR TEMPERATURE SENSOR ENTHALPY SENSOR ENTHALPY SENSOR

Differential Dry Bulb

Temperature with Required --

PremierLink* Included -- 33ZCT55SPT -- --

(PremierLink CRTEMPSN001A00

requires 4-20 mA or Equivalent

Actuator)

Single Enthalpy with

PremierLink* Required --

(PremierLink Included --

requires 4-20 mA Not Used -- orHH57AC077Equivalent --

Actuator)

Differential Enthalpy

with PremierLink* Included -- Required -- Required --

(PremierLink Not Used -- HH57AC077 HH57AC078

requires 4-20 mA or Equivalent or Equivalent

Actuator)

*PremierLink control requires Supply Air Temperature sensor 33ZCSENSAT and

Outdoor Air Temperature sensor CRTEMPSN001A00 -- Included with factory-installed PremierLink control;

field-supplied and field-installed with field-installed PremierLink control.

NOTES:

1. CO2 Sensors (Optional):

33ZCSENCO2 -- Room sensor (adjustable). Aspirator box is required for duct mounting of the sensor.

33ZCASPCO2 -- Aspirator box used for duct-mounted CO2 room sensor.

33ZCT55CO2 -- Space temperature and CO2 room sensor with override.

33ZCT56CO2 -- Space temperature and CO2 room sensor with override and set point.

2. All units include the following Standard Sensors:

Outdoor-Air Sensor -- 50HJ540569 -- Opens at 67 F, closes at 52 F, not adjustable.

Mixed-Air Sensor -- HH97AZ001 -- (PremierLink control requires Supply Air Temperature sensor 33ZCSENSAT

and Outdoor Air Temperature Sensor CRTEMPSN001A00)

Compressor Lockout Sensor -- 50HJ540570 -- Opens at 35 F, closes at 50 E

HVAC SENSOR INPUTS

SL

DUAL MODE SENSOR/STAT

REMOTE OCCUPANCY

COMP SAFETY (Y1) ._

FIRE SHUTDOWN (Y2) Z

SUPPLY FAN STATUS (Wl)

NOT USED

ENTHALPY STATUS (ENTk

00 (

/,/ t "4 "-4 "-..

CCN/LEN NAVIGATOR 4-20MA INDOOR COMPR HEAT EXHAUST

PORT PORT ECONOMIZER FAN MOTOR 1 & 2 LOW/HIGH RVSVALVE

OUTPUTS

Fig. 21A -- PremierLink Controller

16

PREMIERLINK

CONTROL

©©

HINGED

DOOR

PANEL

PREMIERLINK

COVER

Fig. 21B -- PremierLink TM Controller (Installed)

OUTD_R AiR i ' GRAY '

ENTHALPY SENSOR [

Economi$er2

4 - 20mA

:0 0 _"

[

::::::::Q

CCN

Comm

: • BLK i

i RED,[

RETURN AIR

ENTHALPY

SENSOR

7F" _

\L_

8_[)..............

WHT

.... BLK .............................................................................................................

LEGEND

COMMS -- Communications

OAT -- Outdoor Air Temperature Sensor

PWR -- Power

RTU -- Rooftop Unit

SAT -- Supply Air Temperature Sensor

TB -- Terminal Block

6(]t G w_

7 ",C

'_(][j

8_-lhX

\ /

RTU Terminal

Board

Fig. 22 -- Typical PremierLink Controls Wiring

]7

Outdoor Air Enthalpy Sensor/Enthalpy Controller

(HH57AC077) -- To wire the outdoor tfir enthalpy sensor.

perform the following (see Fig. 23 and 24):

NOTE: The outdoor air sensor can be removed from the back

of the enth_dpy controller and mounted remotely.

1. Use a 4-conductor. 18 or 20 AWG cable to connect the

enthalpy control to the PremierLink controller and power

tmnsformec

2. Connect the following 4 wires from the wire hmness

located in rooftop unit to the enthalpy controller:

a. Connect the BRN wire to the 24 vac terminal (TRI)

on enthalpy control and to pin 1on 12-pin harness.

b. Connect the RED wire to the 24 vac GND terminal

(TR) on enth_dpy sensor and to pin 4 on 12-pin

hmness.

c. Connect the GRAY/ORN wire to J4-2 on Premier-

Link controller and to terminal (3) on enthalpy sensoc

d. Connect the GRAY/RED wire to J4-1 on Premier-

Link controller and to terminal (2) on enthalpy sensoc

NOTE: [f installing in a Carrier rooftop, use the two gray wires

provided from the control section to the economizer to connect

PremierLink controller to terminals 2 and 3 on enth_dpy sensoc

Return Air Enthalpy Sensor -- Mount the return-air enthalpy

sensor (HH57AC078) in the return-air duct. The return air

sensor is wired to the enth_dpy controller (HH57AC077). The

outdoor enth_dpy changeover set point is set at the controller.

To wire the return air enthalpy sensor perform the follow-

ing (see Fig. 23):

1. Use a 2-conductor, 18 or 20 AWG. twisted pair cable to

connect the return air enthalpy sensor to the enthalpy

controller.

2. At the enthalpy control remove the factory-installed

resistor from the (SR) and (+) termimds.

3. Connect the field-supplied RED wire to (+) spade

connector on the return air enthalpy sensor and the (SR+)

terminal on the enth_dpy controllel: Connect the BLK

wire to (S) spade connector on the return air enthalpy

sensor and the (SR) terminal on the enthalpy controller

OPTIONAL ECONOM[$ER IV AND ECONOM[$ER2 --

See Fig. 25 for EconoMiSer IV component locations. See

Fig. 26 for EconoMiSer2 component locations.

NOTE: These instructions are for installing the optiomd

EconoMiSer IV and EconoMi$er2 only. Refer to the accessory

EconoMiSer IV or EconoMiSer2 inst_dlation instructions when

field installing an EconoMiSer [V or EconoMi$er2 accessory.

1. To remove the existing unit filter access panel, rgfise the

panel and swing the bottom outwmd. The panel is now

disengaged from the track and can be removed. See

Fig. 27.

2. The box with the economizer hood components is

shipped in the compartment behind the economizer The

EconoMiSer IV controller is mounted on top of the

EconoMiSer [V in the position shown in Fig. 25. The

optiomd EconoMiSer2 with 4 to 20 mA actuator signal

control does not include the EconoMi$er IV controllec

To remove the component box from its shipping position,

remove the screw holding the hood box bracket to the top

of the economizec Slide the hood box out of the unit. See

Fig. 28.

HH57AC077

ENTHALPY

CONTROL AND

OUTDOOR AIR

ENTHALPYSENSOR

HH57AC078 ENTHALPY

SENSOR (USED WITH

ENTHALPY CONTROL

FOR DIFFERENTIAL

ENTHALPY OPERATION)

MOUNTING PLATE

Fig. 24 -- Differential Enthalpy Control,

Sensor and Mounting Plate (33AMKITENT006)

EOO Oo E v

OUTSIDE AIR

HARNESS TEMPERATURE SENSOR

AI // LOWAMO,ENT

........ g,_ Y / SENSOR

ACTUATOR _ _r,_ ,_= /

x_ 0_-/

Fig. 25 -- EconoMi$er IV Component Locations

A6O

ENTHALPYCONTROLLER RED r_ t (OUTDOORAIR

TRra']TRI__ BRN ENTHALPY

SENSOR)

LED

soO +13--

SRCq+D----q

BLK

RED

' FIs (RETURNAIRI

FI + ENTHALPY

-- SENSOR

GRAY/ORN

,,.WIRE HARNESS

GRAY/RED jIN UNIT

NOTES:

1. Remove factory-installed jumper across SR and + before connecting

wires from return air sensor.

2. Switches shown in high outdoor air enthalpy state. Terminals 2 and 3

close on low outdoor air enthalpy relative to indoor air enthalpy.

3. Remove sensor mounted on back of control and locate in outdoor

airstream.

Fig. 23 -- Outdoor and Return Air Sensor Wiring

Connections for Differential Enthalpy Control

OUTDOOR

AIR HOOD

ECONOMI$ER2_

PWO

/

BAROMETRIC

RELIEF

DAMPER

HOOD

BRACKET

GEAR DRIVEN

DAMPER

Fig. 26 -- EconoMi$er2 Component Locations

18

FILTER ACCESS PANEL

_COMPRESSOR

ACCESS PANEL

OUTDOOR-AIR OPENING AND

INDOOR COIL ACCESS PANEL

Fig. 27- Typical Access Panel Locations

HOOD BOX

BRACKET

iI

ii II

11 i I

I

I

I

I

/0

1 I

i I

Fig. 28- Hood Box Removal

IIMPORTANT: If the power exhaust accessory is to be

installed on the unit, the hood shipped with the unit will not

be used and must be discarded. Save the aluminum filter

for use in the power exhaust hood assembly.

3. The indoor coil access panel will be used as the top of the

hood. Remove the screws along the sides and bottom of

the indoor coil access panel. See Fig. 29.

4. Swing out indoor coil access panel and insert the hood

sides under the panel (hood top). Use the sclews provided

to attach the hood sides to the hood top. Use screws pro-

vided to attach the hood sides to the unit. See Fig. 30.

5. Remove the shipping tape holding the economizer baro-

metric relief &_mper in place.

6. Insert the hood divider between the hood sides. See

Fig. 30 and 31. Secure hood divider with 2 screws on

each hood side. The hood divider is also used as the bot-

tom tilter rock for file aluminum filter.

7. Open the tilter clips which are located underneath the

hood top. Insert the aluminum tilter into the bottom tilter

rack (hood divider). Push the tilter into position past the

open filter clips. Close the filter clips to lock the tilter into

place. See Fig. 31.

8. Caulk the ends of the joint between the unit top panel and

the hood top. See Fig. 29.

9. Replace the filter access panel.

10. Install all EconoMi$er IV accessories. EconoMi$er IV

wiring is shown in Fig. 32. EconoMi$er2 wiring is shown

in Fig. 33.

Barometric flow capacity is shown in Fig. 34. Outdoor air

leakage is shown in Fig. 35. Return air pressure drop is shown

in Fig. 36.

SIDE

PANEL

TOP

SIDE

PANEL

N

INDOOR ", INDOOR

COIL "', COIL

ACCESS

PANEL PANEL

Fig. 29 -- Indoor Coil Access Panel Relocation

TOP

PANEL

INDOOR COIL

ACCESS PANEL

HOOD DIVIDER

Fig. 30 -- Outdoor-Air Hood Construction

17 1/4"

HOOD

ALUMINUM

FI_ER

LEFT

SIDE

Fig. 31 -- Filter Installation

BAROMETRIC

RELIEF

FILTER

CLIP

19

FOR OCCUPANCY CONTROL

REPLACE JUMPER WITH

FIELD-SUPPLIED TIME CLOCK

/

(F]ELD

ACCESSORY)

REMOTE MI_

POSiI[O_ POT

IR_M0_FOT71_ 0_-m}--

8LK

ECONO_I ZZR MOTOR

WHT_

REO

PL6-R

FOR STD

UNIT

FIELD ]ICSTALLED _ _

IAO SEICSOR

OAr TEMPI

E_T_AL_Y DE_SOR

L_ -RED --

/FIELD ACCESDORYI

RAT/ENrHAIPY SE_DOR

TAN

FIELD SPLICE

--GRyJ

LEGEND

DCV-- Demand Controlled Ventilation

IAQ -- Indoor Air Quality

LA -- Low Ambient Lockout Device

OAT-- Outdoor-Air Temperature

POT-- Potentiometer

RAT-- Return-Air Temperature

TO PWR EXHAUST

ACCESSORY

Potentiometer Defaults Settings: NOTES:

(R0f USED}

BLU 2_

FIELD SPLICE, 3_

E

BRN 4<

IROT gSEOl

GRY 5_

ORG 9_

(_of USED} !_

Power Exhaust Middle

Minimum Pos. Fully Closed

DCV Max. Middle

DCV Set Middle

Enthalpy C Setting

1. 620 ohm, 1 watt 5% resistor should be removed only when using differential

enthalpy or dry bulb.

2. If a separate field-supplied 24 v transformer is used for the IAQ sensor power

supply, it cannot have the secondary of the transformer grounded.

3. For field-installed remote minimum position POT, remove black wire jumper

between P and P1 and set control minimum position POT to the minimum

position.

Fig. 32 -- EconoMi$er IV Wiring

NOTE 1

NOTE3

J

50HJ540573

ACTUATOR

ASSEMBLY

Jo

'_RUN

DIRECT DRIVE

ACTUATOR

f

500 OHM _[_>1

RESISTOR? T

I

I

II

Ii

- e--I- _ I

I

-{- III-- I.... J

I

I

OPTIONAL CO2

SENSOR 4 - 20 mA

OUTPUT

BLACK

VIOLET

PINK

RED

s

W

>-

WHITE

4

3

5

2

8

6

7

1

10

11

9

12

ECONOMIZER2 PLUG

NOTES:

1. Switch on actuator must be in run position for economizer to operate,

2. PremierLink TM control requires that the standard 50HJ540569 outside-air sensor be replaced by either the CROASENR001A00 dry bulb sensor or HH57A077

enthalpy sensor.

3. 50HJ540573 actuator consists of the 50HJ540567 actuator and a harness with 500-ohm resistor,

Fig. 33 -- EconoMi$er2 with 4 to 20 mA Control Wiring

20

2500

W

z 2000

w 1500

W

m 1000

o

500

0

Z

f

I

0.05 0] 15 0.25

STATIC PRESSURE (in. wg)

Fig. 34 -- Barometric Flow Capacity

"5 30

LU

h-

z_ 25

cc 20

LU

D_

I-- 15

LU

LU

EL 10

Ca 5

D

©

z 0

q

LL

0.13 0.20 0.22 0.25 0.30 0.35 0.40 0.45 0.50

STATIC PRESSURE (in. wg)

Fig. 35 -- Outdoor-Air Damper Leakage

6ooe

w

D 500_

Z

m 400_

w

3000

w

w

L

©2000

100_

Z

0

S

L

0.05 0.10 0.15 0.20 0.25 0.30 0.35

STATIC PRESSURE (in. wg)

Fig. 36 -- Return-Air Pressure Drop

ECONOMI$ER IV STANDARD SENSORS

Outdoor Air Temperature (OAT) Sensor -- The outdoor air

temperature sensor (HH57AC074) is a 10 to 20 mA device

used to measure the outdoor-air temperature. The outdoor-air

temperature is used to determine when the EconoMiSer IV can

be used for free cooling. The sensor is factory-installed on the

EconoMiSer IV in the outdoor airstream. See Fig. 25. The op-

erating range of temperature measurement is 40 to 100 E

Supply Air Temperature (SAT) Sensor -- The supply air

temperature sensor is a 3 K themristor located at the inlet of the

indoor fan. See Fig. 37. This sensor is factory installed. The op-

erating range of temperature measurement is 0 ° to 158 E See

Table 4 for sensor temperature/resistance v_dues.

The temperature sensor looks like an eyelet terminal with

wires running to it. The sensor is located in the "crimp end"

and is sealed fi_m moisture.

Outdoor Air Lockout Sensor -- The EconomiSer IV is

equipped with an mnbient temperature lockout switch located

in the outdoor air stream which is used to lockout the compres-

sors below a 42 F ambient temperature. See Fig. 25.

SUPPLY AIR

TEMPERATURE

SENSOR

MOUNTING

LOCATION

SUPPLY AIR

TEMPERATURE

SENSOR

v

Fig. 37 -- Supply Air Sensor Location

Table 4 -- Supply Air Sensor Temperature/

Resistance Values

TEMPERATURE (F) RESISTANCE (ohms)

-58 200,250

-40 100,680

-22 53,010

-4 29,091

14 16,590

32 9,795

50 5,970

68 3,747

77 3,000

86 2,416

104 1,597

122 1,080

140 746

158 525

176 376

185 321

194 274

212 203

230 153

248 116

257 102

266 89

284 70

302 55

ECONOMISER IV CONTROL MODES

IMPORTANT: The optional EconoMiSer2 does not

include a controllel: The EconoMiSer2 is operated by a 4 to

20 mA signN from an existing field-supplied controller

(such as PremierLink TM control). See Fig. 33 for wiring

information.

Determine fl3e EconoMiSer IV control mode before set up of

the control. Some modes of operation may require different sen-

sors. Refer to Table 5. The EconoMiSer IV is supplied from the

factory with a supply air temperature sensor and an outdoor air

temperature sensol: This allows for operation of the

EconoMiSer IV with outdoor air dry bulb changeover control.

Additional accessories can be added to allow for diffelent types

of changeover control and operation of the EconoMiSer IV and

unit.

Outdoor DLy Bulb Changeover -- The standard controller is

shipped from the facto qconfigured for outdoor dlT bulb

changeover control. The outdoor air and supply air temperature

sensors tue included as stan&ud. For this control mode, the

21

outdoortemperatureis comptu'edto anadjustablesetpoint

selectedonthecontrol.If theoutdoor-airtemperatureisabove

thesetpoint,theEconoMiSerIV will adjusttheoutsideair

dmnperstominimumposition.Iftheoutdoor-airtemperatureis

belowthesetpoint,thepositionoftheoutdoorairdamperswill

becontrolledtoprovidefleecoolingusingoutdoorair.When

inthismode,theLEDnexttofilefreecoolingsetpointpotenti-

ometerwill beon.Thechangeovertemperaturesetpointis

controlledbythefreecoolingsetpointpotentiometerlocated

onthecontrol.SeeFig.38.ThescaleonthepotentiometerisA,

B,C,andD. SeeFig.39fortheconespondingtemperature

changeovervalues.

Differential Dry Bulb Control -- For differential dry bulb

control the standard outdoor dry bulb sensor is used in conjunc-

tion with an additional accessory dry bulb sensor (part number

CRTEMPSN002A00). Tile accessory sensor must be mounted

in the return ailstream. See Fig. 40. Wiring is provided in the

EconoMiSer IV wiring harness. See Fig. 32.

In this mode of operation, the outdoor-air temperatme is

compared to the return-air temperature and the lower tempera-

ture airsheam is used for cooling. When using this mode of

changeover control, turn the enthalpy setpoint potentiometer

fully clockwise to the D setting. See Fig. 38.

Table 5 -- EconoMi$er IV Sensor Usage

APPLICATION

Outdoor Air

Dry Bulb

Differential

Dry Bulb

Single Enthalpy

Differential

Enthalpy

CO2 for DCV

Control using a

Wall-Mounted

CO2 Sensor

CO2 for DCV

Control using a

Duct-Mounted

CO2 Sensor

ECONOMI$ER IV WITH OUTDOOR AIR

DRY BULB SENSOR

Accessories Required

None. The outdoor air dry bulb sensor

is factory installed.

CRTEMPSN002A00*

HH57AC078

HH57AC078

and

CRENTDIF004A00*

33ZCSENCO2

33ZCSENCO2t I_ I

and CRCBDIOX005A00tt

33ZCASPCO2**

*CRENTDIF004A00 and CRTEMPSN002A00 accessories are used on

many different base units. As such, these kits may contain parts that

will not be needed for installation.

t33ZCSENCO2 is an accessory CO2 sensor.

**33ZCASPCO2 is an accessory aspirator box required for duct-

mounted applications.

ttCRCBDiOX005A00 is an accessory that contains both 33ZCSENCO2

and 33ZCASPCO2 accessories.

EXHAUST

FAN SET POINT

LED LIGHTS

WHEN EXHAUST

CONTACT IS MADE

MINIMUM DAMPER

POSITION SETTING

MAXIMUM DAMPER _

DEMAND CONTROL

VENTILATION SET POINT

LED LIGHTS WHEN_

DEMAND CONTROL

VENTILATION INPUT

ISABOVE SET POINT

DEMAND CONTROL

VENTILATION SET POINT

LED LIGHTS WHEN

OUTDOOR AIR IS

SUITABLE FOR

FREE COOLING

ENTHALPY

CHANGEOVER SET POINT

Fig. 38 -- EconoMiSer IV Controller Potentiometer

and LED Locations

19 ,, i [

17

16- _ -LED OF[

15

13

12

11

10

9

4O 46 5O

LED ON

_LED ON

_m. LED ON-- --

LED OFF "%

I

55 60 65 70 75 80 85 90 95 100

DEGREES FAHRENHEIT

Fig. 39 -- Outside Air Temperature

Changeover Set Points

ECONOMI$ER

I

,

I

I

ECONOMI$ER ]_

_ CONTROLLER

7

/

_ GROMMET

_f_- RETURNAIR

SENSOR

RETURN DUCT

(FIELD-PROVIDED)

Fig. 40 -- Return Air Temperature or Enthalpy

Sensor Mounting Location

Outdoor Enthalpy Changeover -- For enthalpy control, ac-

cessory enthalpy sensor (p_u-t number HH57AC078) is re-

quired. Replace the standard outdoor @ bulb temperature sen-

sor with file accessory enthalpy sensor in the same mounting

location. See Fig. 25. When the outdoor air enthalpy rises

above the outdoor enthalpy changeover set point, the outdoor-

air damper moves to its minimum position. Tile outdoor

enthalpy changeover set point is set with the outdoor enth_dpy

set point potentiometer on file EconoMiSer IV controllel: The

set points are A, B, C, and D. See Fig. 41. The factory-installed

620-ohln jumper must be in place across terrainals SR and SR+

on file EconoMiSer IV controllel: See Fig. 25 and 42.

Differential Enthalpy Control -- For differential enthalpy

control, the EconoMiSer IV controller uses two enthalpy sen-

sors (HH57AC078 and CRENTDIF004A00), one in the out-

side air and one in the return air duct. The EconoMiSer IV

controller compmes file outdoor air enthalpy to the return air

enthalpy to determine EconoMi$er IV use. Tile controller

selects the lower enthalpy air (return or outdoor) for cooling.

For example, when file outdoor air has a lower enthalpy than

the return air. the EconoMi$er IV opens to bring in outdoor air

for free cooling.

Replace the standard outside air dry bulb temperature sen-

sor with file accessory enthalpy sensor in the same mounting

location. See Fig. 25. Mount the return air enthalpy sensor in

the return air duct. See Fig. 40. Wiring is provided in the

EconoMiSer IV wiring harness. See Fig. 32. The outdoor en-

thalpy changeover set point is set with the outdoor enthalpy set

point potentiometer on the EconoMiSer IV controllel: When

22

usingthismodeof changeovercontrol,turntheenthalpyset-

pointpotentiometerfullyclockwisetotheDsetting.

Indoor Air Quality (IAQ) Sensor Input -- The IAQ input

can be used for demand control ventilation control based on the

level of CO2 measured in the space or return air duct.

Mount the accessory IAQ sensor according to manufacturer

specifications. The IAQ sensor should be wired to the AQ and

AQI terminals of file controller Adjust the DCV potentiome-

ters to correspond to the DCV voltage output of file indoor air

quality sensor at the user-determined set point. See Fig. 43.

If a separate field-supplied transformer is used to power the

IAQ sensor, the sensor must not be grounded or the

EconoMi$er IV control board will be damaged.

CONTROL CONTROL POINT

CURVE APPROXI°F(°C)

AT 50% RH

A 73123)

B 70121)

C 67119 )

D 63(17)

85 90 95 100 105 110

(29) (32) (35) (38) (41) (43)

\

\

\

\

\

HIGH LIMIT

\ CURVE

35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110

(2) (4) (7) (10) (13) (16) (18) (21) (24) (27) (29) (32) (35) (38) (41) (43)

APPROXIMATE DRY BULB TEMPERATURE-- °F (°C)

Fig. 41 -- Enthalpy Changeover Set Points

TRIP-1 T_

24T_24 Vac

Vac COM

HO

...... @

..................................................J

Fig. 42 -- EconoMi$er IV Control

2

5

......_ 4

EF_ EF1

6000

5000

z

2 4000

3000

Z

2000

W

z 1000

<

o

CO 2 SENSOR MAX RANGE SETTING

+800 ppm

+900 ppm

_1000 ppm

+1100 ppm

2345678

DAMPER VOLTAGE FOR MAX VENTILATION RATE

Fig. 43 -- CO2 Sensor Maximum Range Setting

23

Exhaust Set Point Adjustment -- The exhaust set point will

determine when the exhaust fan runs based on dmnper position

(if accessory power exhaust is installed). The set point is modi-

fied with the Exhaust Fan Set Point (EXH SET) potentiometer

See Fig. 38. The set point represents the damper position above

which the exhaust fans will be turned on. When there is a call

for exhaust, the EconoMiSer IV controller provides a 45 _+15

second delay before exhaust fan activation to allow the damp-

ers to open. This delay _fllows file damper to reach the appro-

priate position to avoid unnecessary fan overload.

Minimum Position Control -- There is a minimum damper

position potentiometer on the EconoMiSer [V controllel: See

Fig. 38. The minimum damper position maintains the mini-

mum airflow into the building during the occupied period.

When using demand ventihttion, the minimum dmnper po-

sition represents the minimum ventilation position for VOC

(volatile organic compound) ventilation requirements. The

maximum demand ventilation position is used for fully occu-

pied ventilation.

When demand ventilation control is not being used, the

minimum position potentiometer should be used to set the oc-

cupied ventilation position. The maximum demand ventilation

position should be turned fully clockwise.

Adjust the minimum position potentiometer to allow the

minimum mnount of outdoor aik as required by local codes, to

enter the building. Make minimum position adjustments with

at least 10 F temperature difference between the outdoor and

return-air temperatures.

To determine the minimum position setting, perform the

following procedure:

1. Calculate the appropriate mixed air temperature using the

following formula:

OA RA

(To x l---ff_ ) + (TR x _ = TM

To = Outdoor-Air Temperature

OA = Percent of Outdoor Air

TR = Return-Air Temperature

RA = Percent of Return Air

TM = Mixed-Air Temperature

As an example, if local codes require 10% outdoor air

during occupied conditions, outdoor-air temperature is

60 E and return-air temperature is 75 E

(60 x .10) + (75 x .90) =73.5 F

2. Disconnect the supply air sensor from terminals T and

TI.

3. Ensure that the factory-installed jumper is in place across

terminals P and PI. If remote damper positioning is being

used, make sure that the terminals are wired according to

Fig. 32 and that the minimum position potentiometer is

turned fully clockwise.

4. Connect 24 vac across terminals TR and TRI.

5. Carelhlly adjust the minimum position potentiometer

until the measured supply air temperature matches the

calculated value.

6. Reconnect the supply air sensor to termimfls T and TI.

Remote control of the EconoMiSer IV damper is desirable

when requiring additiomfl tempormy ventilation. If a

field-supplied remote potentiometer (Honeywell part number

$963B1128) is wired to the EconoMiSer IV controllek the

minimum position of the damper can be controlled from a re-

mote location.

To control the minimum damper position remotely, remove

the factory-installed jumper on the P and PI terminals on the

EconoMiSer IV controllel: Wire the field-supplied potentiome-

ter to the P and PI terminals on the EconoMi$er IV controller.

See Fig. 42.

Damper Movement -- Damper movement trom full open to

full closed (or vice versa) takes 2112minutes.

Thermostats -- The EconoMi$er IV control works with con-

ventiomd thermostats that have a YI (cool stage 1), Y2 (cool

stage 2), Wl (heat stage 1), W2 (heat stage 2), and G (fan). The

EconoMi$er IV control does not support space temperature

sensors. Connections are made at the thermostat termimd con-

nection board located in the main control box.

Occupancy Control -- The factoUdefault configuration for

the EconoMi$er IV control is occupied mode. Occupied status

is provided by the black jumper fiom terminal TR to terminal

N. When unoccupied mode is desired, install a field-supplied

time clock function in place of the jumper between TR and N.

See Fig. 32. When the time clock contacts me closed, the

EconoMi$er IV control will be in occupied mode. When the

time clock contacts are open (removing the 24-v signal from

terminal N), the EconoMi$er IV will be in unoccupied mode.

Demand Controlled Ventilation (DCV) -- When using the

EconoMi$er IV for demand controlled ventilation, them are

some equipment selection criteria which should be considered.

When selecting the heat capacity and cool capacity of the

equipment, the maximum ventilation rote must be evaluated for

design conditions. The maximum damper position must be cal-

culated to provide the desired fresh air

Typically the maximum ventilation rate will be about 5 to

10% more than the typical cfin required per person, using

normal outside air design criteria.

A proportional anticipatory strategy should be taken with

the following conditions: a zone with a large area, varied occu-

pancy, and equipment that cannot exceed the required ventila-

tion rate at design conditions. Exceeding the required ventila-

tion rate means the equipment can condition air at a maximum

ventilation rate that is greater than the required ventilation rate

for maximum occupancy. A proportional-anticipato Ustrategy

will cause the fresh air supplied to increase as the room CO2

level increases even though the CO2 set point has not been

reached. By the time the CO2 level roaches the set point, the

damper will be at maximum ventilation and should maintain

the set point.

In order to have the CO2 sensor control the economizer

damper in this manner, fil.'stdetermine the damper voltage out-

put for minimum or base ventilation. Base ventilation is the

ventilation required to remove contmninants during unoccu-

pied periods. The following equation may be used to determine

the percent of outside-air entering the building for a given

damper position. For best results there should be at least a

10 degree difference in outside and return-air temperatures.

OA RA

(To x l---ff_-) + (TR x _ = TM

To = Outdoor-Air Temperature

OA = Percent of Outdoor Air

TR = Return-Air Temperature

RA = Percent of Return Air

TM = Mixed-Air Temperature

Once base ventilation has been determined, set the mini-

mum damper position potentiometer to the correct position.

The same equation can be used to deterlnine the occupied or

maximum ventilation rate to the building. For example, an out-

put of 3.6 volts to the actuator provides a base ventilation rate

of 5% and an output of 6.7 volts provides the maximum venti-

lation rate of 20% (or base plus 15 cfm per person). Use Fig. 43

to determine the maximum setting of the CO2 sensol: For ex-

ample, a 1100 ppm set point relates to a 15 cfm per person de-

sign. Use the 1100 ppm curve on Fig. 43 to find the point when

the CO2 sensor output will be 6.7 volts. Line up the point on the

graph with the left side of the chart to determine that the range

configuration for the CO2 sensor should be 1800 ppm. The

24

EconoMiSerIV controllerwilloutputthe6.7voltsfiomthe

CO2sensortotheactuatorwhentheCO2concentrationinthe

spaceisfit1100ppm.TheDCVsetpointmaybeleftfit2volts

sincethe CO2sensorvoltagewill be ignoredby the

EconoMiSerIVcontrolleruntilitrisesabovethe3.6voltset-

tingoftheminimumpositionpotentiometer

Oncethefullyoccupieddmnperpositionhasbeendeter-

mined,setfilemaximumdamperdemandcontrolventilation

potentiometertothisposition.Donotsettofilemaximumposi-

tionasfliiscanlesultinover-ventilationtothespacefindpoten-

tialhigh-humiditylevels.

C02 Sensor Configuration -- The CO2 sensor has preset

standard voltage settings flint can be selected anytime after the

sensor is powered up. See Table 6.

Use setting 1 or 2 for Carrier equipment. See Table 6.

1. Pless Clear and Mode buttons. Hold fit least 5 seconds

until the sensor enters the Edit mode.

2. Pless Mode twice. The STDSET Menu will appem:

3. Use file Up/Down button to select the pleset numbel: See

Table 6.

4. Pless Enter to lock in the selection.

5. Pless Mode to exit and resume normal operation.

The custom settings of the CO2 sensor can be changed any-

time after the sensor is energized. Follow the steps below to

change file non-stan&trd settings:

1. Pless Clear and Mode buttons. Hold fit least 5 seconds

until the sensor enters the Edit mode.

2. Pless Mode twice. The STDSET Menu will appem:

3. Use the Up/Down button to toggle to the NONSTD menu

and press Entec

4. Use the Up/Down button to toggle through each of the

nine variables, stinting with Altitude, until the desired set-

ting is reached.

5. Press Mode to move through the variables.

6. Press Enter to lock in the selection, then press Mode to

continue to the next vmiable.

Dehumidification of Fresh Air with DCV Control -- Infor-

mation from ASHRAE indicates that the largest humidity load

on any zone is the fresh air introduced. For some applications,

a device such as a 62AQ energy recovery unit is added to re-

duce the moisture content of the fresh air being brought into the

building when file enthalpy is high. In most cases, the normfd

heating and cooling processes are morn than adequae to m-

move the humidity loads for most commemial applications.

If normal rooftop heating and cooling operation is not ade-

quate for the outdoor humidity level, fin energy recovery unit

and/or a dehumidification option should be considered.

Step 9- Adjust Evaporator-Fan Speed --Adjust

evaporator-fan speed to meet jobsite conditions.

Tables 7 and 8 show fan rpm fit motor pulley settings.

Tables 9 and 10 show maximum amp draw of belt-di'ive motol:

Table 11 shows sound data. Refer to Tables 12-29 for perfor-

mance data. See Table 30 for accessory static pressure drop.

See Fig. 44 for the Humidi-MiZer r_q system static pressure

diops.

BELT-DRIVE MOTORS -- Fan motor pulleys are facto qset

for speed shown in Table 1. Check pulley alignment find belt

tension prior to start-up.

NOTE: Befole adjusting fan speed, make sure the new fan

speed will provide an air temperature rise range as shown in

Table 1.

To change fan speed:

1. Shut off unit power supply, tag disconnect.

2. Ix_osen belt by loosening fan motor mounting nuts. See

Fig. 45.

3. Ix_osen movable pulley flange setscrew (see Fig. 46).

4. Screw movable flange toward fixed flange to increase

speed and away from fixed flange to decrease speed.

Increasing fan speed increases load on motol: Do not

exceed maximum speed specified in Table 1.

5. Set movable flange at nearest keyway of pulley hub and

tighten setscrew. (See Table 1 for speed change for each

lull turn of pulley flange.)

To align fan and motor pulleys, loosen fan pulley setscrews

find slide fan pulley along fan shaft. Make angular alignment

by loosening motor from mounting.

To adjust belt tension:

1. Ix_osen fan motor mounting nuts.

2. Slide motor mounting plate away from fan scroll for

proper belt tension (1/2-in. deflection wifli 8 to 10 lb of

force) and tighten mounting nuts.

3. Adjust lock bolt and nut on mounting plate to secure

motor in fixed position.

Table 6 -- 002 Sensor Standard Settings

EQUIPMENT OUTPUT ANALOG

OUTPUT

SETTING

1

2

3

4

5

6

7

8

Interface w/Standard

Building Control System

Economizer

Health & Safety

Parking/Air Intakes/

9Loading Docks

Proportional

Proportional

Exponential

Proportional

Proportional

Exponential

Exponential

Proportional

Proportional

VENTILATION

RATE

(cfm/Peraon)

Any

Any

Any

15

20

15

2O

0-10V

4-20 mA

2-10V

7-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

002

CONTROLRANGE

(ppm)

0-2000

0-2000

0-2000

0-1100

0- 900

0-1100

0- 900

0-9999

0-2000

OPTIONAL

RELAY SETPOINT

(ppm)

1000

1000

1100

1100

900

1100

900

5000

7OO

LEGEND

ppm -- Parts Per Million

RELAY

HYSTERESIS

(ppm)

5O

5O

5O

5O

5O

5O

5O

5OO

5O

25

0.35

0.25 -

0.1

0.05

4&5ton

6 ton

3 ton

0 iiii [

0 1000 2000 3000 4000 5000 6000

Fig. 44 -- Humidi-MiZer TM Adaptive Dehumidification System Static Pressure Drop (in. wg)

MOTOR MOUNTING

PLATE NUTS

Fig. 45 -- Belt-Drive Motor Mounting

STRAIGHT EDGE MUST

WITH BELT

MOTOR AND FAN

SHAFTS MUST BE

PARALLEL

MOVABLE

FLANGE

SETSCREW£__'_

FIXED FLANGE

SINGLE-GROOVE

Fig. 46 -- Evaporator-Fan Pulley Adjustment

Table 7 -- 48HJ Fan Rpm at Motor Pulley Setting With Standard Motor*

UNIT MOTOR PULLEY TURNS OPEN

48HJ 0l& 1 11_ 2 2_& 3 3l& 4 4_ 5 5l& 6

004 1044 1008 971 935 898 862 826 789 753 716 680 -- --

005 1185 1144 1102 1061 1019 978 936 895 853 812 770 -- --

006 1460 1425 1389 1354 1318 1283 1248 1212 1177 1141 1106 1070 1035

007 1585 1538 1492 1445 1399 1352 1305 1259 1212 1166 1119 -- --

*Approximate fan rpm shown (standard motor/drive).

UNIT

48HJ Ol& 1

004 1455 1423 1392

005 1455 1423 1392

006 1685 1589 1557

007 1685 1589 1557

Table 8 -- 48HJ Fan Rpm at Motor Pulley Setting With High-Static Motor*

MOTOR PULLEY TURNS OPEN

1l& 221& 3 3 l& 44 l& 5 5l& 6

1360 1328 1297 1265 1233 1202 1170 1138 1107 1075

1360 1328 1297 1265 1233 1202 1170 1138 1107 1075

1525 1493 1460 1428 1396 1364 1332 1300 -- --

1525 1493 1460 1428 1396 1364 1332 1300 -- --

*Approximate fan rpm shown (high-static motor/drive).

26

UNIT UNIT

48HJ PHASE

Single

O04 Three

Single

005 Three

Single

006 Three

007 Three

LEGEND

Bhp i Brake Horsepower

Table 9 -- Evaporator-Fan Motor Data -- Standard Motor

MAXIMUM

CONTINUOUS BHP*

1.20

1.20

1.20

1.20

1.30

2.40

MAXIMUM

OPERATING WATTS*

1000

1000

1000

1000

1650

2120

21202.40

UNIT VOLTAGE

208_30

208_30

460

575

208_30

208_30

460

575

208_30

208_30

460

575

208_30

460

575

MAXIMUM

AMPDRAW

4.9

4.9

2.2

2.2

4.9

4.9

2.2

2.2

10.1

6.7

3.0

3.0

6.7

3.0

3.0

*Extensive motor and electrical testing on these units ensures that the

full horsepower and watts range of the motors can be utilized with confi-

dence. Using the fan motors up to the ratings shown in this table will not

result in nuisance tripping or premature motor failure. Unit warranty will

not be affected.

UNIT UNIT

48HJ PHASE

004 Three

005 Three

006 Three

007 Three

LEGEND

Bhp -- Brake Horsepower

Table 10- Evaporator-Fan Motor Data- High-Static Motors

MAXIMUM MAXIMUM

CONTINUOUS BHP* OPERATING WATTS*

2.40

2.40

2.90

2120

2120

2615

26152.90

UNIT VOLTAGE

208/230

460

575

208/230

460

575

208/230

460

575

208/230

460

575

MAXIMUM

AMP DRAW

6.7

3.0

3.0

6.7

3.0

3.0

8.6

3.9

3.9

8.6

3.9

3.9

*Extensive motor and electrical testing on these units ensures that the

full horsepower and watts range of the motors can be utilized with confi-

dence. Using the fan motors up to the ratings shown in this table will not

result in nuisance tripping or premature motor failure. Unit warranty will

not be affected.

Table 11 -- Outdoor Sound Power (Total Unit)

ARI OCTAVE BANDS

UNIT RATING

48HJ (decibels) 63 125 250 500 1000 2000 4000 8000

004,005 76 55.9 66.0 64.0 66.2 68.4 64.5 61.7 57.3

006,007 80 59.1 68.9 68.7 71.9 74.0 68.9 65.7 59.0

LEGEND

ARI -- Air Conditioning and Refrigeration Institute

GENERAL FAN PERFORMANCE NOTES

1. Values include losses for filters, unit casing, and wet coils. See Table 30

and Fig. 44 for accessory/FlOP static pressure information.

2. Extensive motor and electrical testing on these units ensures that the full

range of the motor can be utilized with confidence. Using the fan motors up

to the ratings shown will not result in nuisance tripping or premature motor

failure. Unit warranty will not be affected. See Tables 9 and 10 on this page

for additional information.

3. Use of a field-supplied motor may affect wire sizing. Contact your Carrier

representative to verify.

4. Interpolation is permissible. Do not extrapolate.

27

Table 12 -- Fan Performance 48HJ004 -- Vertical Discharge Units; Standard Motor (Belt Drive)*

AIRFLOW

CFM

900

1000

1100

1200

1300

1400

1500

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

567 0.15 145 688 0.22 222 786 0.30 296 871 0.37 368 947 0.44 437

599 0.18 177 717 0.27 265 814 0.35 349 897 0.43 430 972 0.51 509

632 0.22 215 747 0.31 313 842 0.41 407 925 0.50 498 999 0.59 587

666 0.26 257 778 0.37 367 871 0.47 471 952 0.57 572 1025 0.67 670

701 0.31 306 810 0.43 426 901 0.54 540 981 0.65 651 1053 0.76 760

737 0.36 361 842 0.49 491 931 0.62 616 1010 0.74 738 1081 0.86 856

773 0.42 422 875 0.57 564 963 0.70 699 1040 0.84 831 1110 0.96 960

AIRFLOW

CFM

90O

1000

1100

1200

1300

1400

1500

Bhp -- Brake Horsepower

Watts -- Input Watts to Motor

*Motor drive range: 680 to 1044 rpm. All other rpms require field-

supplied drive.

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1016 0.51 505 1080 0.57 572 1139 0.64 637 1195 0.71 702 1249 0.77 765

1041 0.59 587 1104 0.67 662 1163 0.74 737 1219 0.81 811 1272 0.89 883

1066 0.68 674 1129 0.76 759 1188 0.85 843 1243 0.93 925 1296 1.01 1007

1093 0.77 767 1155 0.87 861 1213 0.96 955 1268 1.05 1047 1321 1.14 1137

1119 0.87 866 1181 0.98 970 1239 1.08 1073 1294 1.18 1175 -- -- --

1147 0.98 972 1208 1.09 1086 .........

1175 1.09 1086 ............

LEGEND NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 1.20.

3. See page 27 for general fan performance notes.

Table 13 -- Fan Performance 48HJ004 --Vertical Discharge Units; High-Static Motor (Belt Drive)*

AIRFLOW

CFM

90O

1000

1100

1200

1300

1400

1500

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

567 0.15 145 688 0.22 222 786 0.30 296 871 0.37 368 947 0.44 437

599 0.18 177 717 0.27 265 814 0.35 349 897 0.43 430 972 0.51 509

632 0.22 215 747 0.31 313 842 0.41 407 925 0.50 498 999 0.59 587

666 0.26 257 778 0.37 367 871 0.47 471 952 0.57 572 1025 0.67 670

701 0.31 306 810 0.43 426 901 0.54 540 981 0.65 651 1053 0.76 760

737 0.36 361 842 0.49 491 931 0.62 616 1010 0.74 738 1081 0.86 856

773 0.42 422 875 0.57 564 963 0.70 699 1040 0.84 831 1110 0.96 960

AIRFLOW

CFM

90O

1000

1100

1200

1300

1400

1500

Bhp -- Brake Horsepower

Watts -- Input Watts to Motor

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1016 0.51 505 1080 0.57 572 1139 0.64 637 1195 0.71 702 1249 0.77 765

1041 0.59 587 1104 0.67 662 1163 0.74 737 1219 0.81 811 1272 0.89 883

1066 0.68 674 1129 0.76 759 1188 0.85 843 1243 0.93 925 1296 1.01 1007

1093 0.77 767 1155 0.87 861 1213 0.96 955 1268 1.05 1047 1321 1.14 1137

1119 0.87 866 1181 0.98 970 1239 1.08 1073 1294 1.18 1175 1346 1.28 1275

1147 0.98 972 1208 1.09 1086 1265 1.21 1199 1320 1.32 1310 1371 1.43 1419

1175 1.09 1086 1235 1.22 1209 1292 1.34 1332 1346 1.46 1452 1397 1.58 1572

LEGEND NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.40.

3. See page 27 for general fan performance notes.

*Motor drive range: 1075 to 1455 rpm. All other rpms require field-

supplied drive.

28

Table 14 -- Fan Performance 48HJ005 -- Vertical Discharge Units; Standard Motor (Belt Drive)*

AIRFLOW

CFM

1200

1300

1400

1500

1600

1700

1800

1900

2000

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

666 0.26 257 778 0.37 367 871 0.47 471 952 0.57 572 1025 0.67 670

701 0.31 306 810 0.43 426 901 0.54 540 981 0.65 651 1053 0.76 760

737 0.36 361 842 0.49 491 931 0.62 616 1010 0.74 738 1081 0.86 856

773 0.42 422 875 0.57 564 963 0.70 699 1040 0.84 831 1110 0.96 960

810 0.49 491 909 0.65 643 994 0.79 790 1070 0.94 932 1140 1.08 1070

847 0.57 567 943 0.73 730 1027 0.89 888 1101 1.05 1040 1170 1.20 1189

885 0.66 652 978 0.83 826 1060 1.00 994 1133 1.16 1157 -- -- --

923 0.75 745 1014 0.94 930 1093 1.11 1109 ......

962 0.85 847 1049 1.05 1043 .........

AIRFLOW

CFM

1200

1300

1400

1500

1600

1700

1800

1900

2000

LEGEND

Bhp -- Brake Horsepower

Watts -- Input Watts to Motor

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1093 0.77 767 1155 0.87 861 1213 0.96 955 1268 1.05 1047 1321 1.14 1137

1119 0.87 866 1181 0.98 970 1239 1.08 1073 1294 1.18 1175 -- -- --

1147 0.98 972 1208 1.09 1086 .........

1175 1.09 1086 ............

NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 1.20.

3. See page 27 for general fan performance notes.

*Motor drive range: 770 to 1185 rpm. All other rpms require field-

supplied drive.

Table 15 -- Fan Performance 48HJ005 -- Vertical Discharge Units; High-Static Motor (Belt Drive)*

AIRFLOW

CFM

1200

1300

1400

1500

1600

1700

1800

1900

2000

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

666 0.26 257 778 0.37 367 871 0.47 471 952 0.57 572 1025 0.67 670

701 0.31 306 810 0.43 426 901 0.54 540 981 0.65 651 1053 0.76 760

737 0.36 361 842 0.49 491 931 0.62 616 1010 0.74 738 1081 0.86 856

773 0.42 422 875 0.57 564 963 0.70 699 1040 0.84 831 1110 0.96 960

810 0.49 491 909 0.65 643 994 0.79 790 1070 0.94 932 1140 1.08 1070

847 0.57 567 943 0.73 730 1027 0.89 888 1101 1.05 1040 1170 1.20 1189

885 0.66 652 978 0.83 826 1060 1.00 994 1133 1.16 1157 1200 1.32 1316

923 0.75 745 1014 0.94 930 1093 1.11 1109 1165 1.29 1283 1231 1.46 1453

962 0.85 847 1049 1.05 1043 1127 1.24 1233 1198 1.42 1417 1263 1.61 1598

AIRFLOW

CFM

1200

1300

1400

1500

1600

1700

1800

1900

2000

Bhp -- Brake Horsepower

Watts -- Input Watts to Motor

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1093 0.77 767 1155 0.87 861 1213 0.96 955 1268 1.05 1047 1321 1.14 1137

1119 0.87 866 1181 0.98 970 1239 1.08 1073 1294 1.18 1175 1346 1.28 1275

1147 0.98 972 1208 1.09 1086 1265 1.21 1199 1320 1.32 1310 1371 1.43 1419

1175 1.09 1086 1235 1.22 1209 1292 1.34 1332 1346 1.46 1452 1397 1.58 1572

1204 1.21 1207 1263 1.35 1340 1320 1.48 1472 1373 1.61 1603 1424 1.74 1732

1233 1.34 1336 1292 1.49 1480 1348 1.63 1622 1401 1.77 1762 1451 1.91 1901

1262 1.48 1473 1321 1.64 1627 1376 1.79 1779 1428 1.94 1930 1479 2.09 2078

1293 1.63 1620 1350 1.79 1784 1405 1.96 1946 1457 2.12 2106 1506 2.28 2265

1323 1.79 1776 1380 1.96 1950 1434 2.13 2123 1486 2.31 2293 -- -- --

LEGEND NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.40,

3. See page 27 for general fan performance notes.

*Motor drive range: 1075 to 1455 rpm. All other rpms require field-

supplied drive.

29

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Table 16 -- Fan Performance 48HJ006, Single-Phase -- Vertical Discharge Units;

Standard Motor (Belt Drive)*

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

848 0.42 371 968 0.55 486 1069 0.68 600 1158 0.80 715 1238 0.94 831

887 0.49 433 1004 0.63 556 1103 0.76 678 1190 0.90 800 1269 1.04 922

927 0.57 502 1040 0.71 633 1137 0.86 763 1223 1.00 892 1302 1.15 1022

967 0.65 579 1077 0.81 718 1172 0.96 856 1257 1.12 993 1334 1.27 1130

1007 0.75 663 1115 0.91 811 1208 1.08 957 1291 1.24 1101 -- -- --

1048 0.85 757 1153 1.03 913 1244 1.20 1066 ......

1090 0.97 859 1191 1.15 1023 .........

1131 1.09 970 1230 1.29 1143 .........

1173 1.23 1091 ............

AIRFLOW

CFM

1500

1600

1700

1800

1900

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1312 1.07 948 1380 1.20 1067 .........

1342 1.18 1047 ............

1374 1.30 1153 ............

2000 ..............

2100 ..............

2200 ..............

2300 ..............

2400 ..............

2500 ..............

LEGEND NOTES:

Bhp -- Brake Horsepower 1. Boldface indicates field-supplied drive is required,

Watts -- Input Watts to Motor 2. Maximum continuous bhp is 1.30.

3. See page 27 for general fan performance notes.

*Motor drive range: 1035 to 1460 rpm. All other rpms require field-

supplied drive.

m

m

m

m

m

m

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Table 17 -- Fan Performance 48HJ006, Three-Phase -- Vertical Discharge Units;

Standard Motor (Belt Drive)*

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

848 0.42 371 968 0.55 486 1069 0.68 600 1158 0.80 715 1238 0.94 831

887 0.49 433 1004 0.63 556 1103 0.76 678 1190 0.90 800 1269 1.04 922

927 0.57 502 1040 0.71 633 1137 0.86 763 1223 1.00 892 1302 1.15 1022

967 0.65 579 1077 0.81 718 1172 0.96 856 1257 1.12 993 1334 1.27 1130

1007 0.75 663 1115 0.91 811 1208 1.08 957 1291 1.24 1101 1368 1.40 1246

1048 0.85 757 1153 1.03 913 1244 1.20 1066 1326 1.37 1219 1401 1.54 1371

1090 0.97 859 1191 1.15 1023 1281 1.33 1185 1361 1.51 1345 1435 1.69 1505

1131 1.09 970 1230 1.29 1143 1318 1.48 1313 1397 1.67 1481 1470 1.86 1649

1173 1.23 1091 1269 1.43 1273 1355 1.63 1451 1433 1.83 1627 1505 2.03 1803

1215 1.38 1223 1309 1.59 1413 1393 1.80 1600 1470 2.01 1784 1540 2.21 1967

1258 1.54 1365 1349 1.76 1564 1431 1.98 1759 1506 2.20 1951 -- -- --

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

LEGEND

Bhp -- Brake Horsepower

Wa_s -- Input Watts to Motor

*Motor drive range: 1035 to 1460 rpm. All other rpms require field-

supplied drive.

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1312 1.07 948 1380 1.20 1067 1445 1.34 1189 1506 1.48 1312 1564 1.62 1437

1342 1.18 1047 1411 1.32 1173 1474 1.46 1300 1535 1.61 1429 1593 1.76 1560

1374 1.30 1153 1441 1.45 1286 1505 1.60 1420 1565 1.75 1555 1622 1.91 1692

1406 1.43 1268 1473 1.58 1407 1535 1.74 1548 1595 1.90 1690 1652 2.06 1833

1438 1.57 1391 1504 1.73 1537 1567 1.90 1685 1626 2.06 1833 1682 2.23 1983

1471 1.72 1523 1536 1.89 1677 1598 2.06 1831 1657 2.24 1986 -- -- --

1504 1.87 1665 1569 2.06 1825 1630 2.24 1986 ......

1538 2.04 1816 1602 2.23 1984 .........

1572 2.23 1978 ............

NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2,40.

3. See page 27 for general fan performance notes.

3O

Table 18 -- Fan Performance 48HJ006 -- Vertical Discharge Units; High-Static Motor (Belt Drive)*

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

848 0.42 371 968 0.55 486 1069 0.68 600 1158 0.80 715 1238 0.94 831

887 0.49 433 1004 0.63 556 1103 0.76 678 1190 0.90 800 1269 1.04 922

927 0.57 502 1040 0.71 633 1137 0.86 763 1223 1.00 892 1302 1.15 1022

967 0.65 579 1077 0.81 718 1172 0.96 856 1257 1.12 993 1334 1.27 1130

1007 0.75 663 1115 0.91 811 1208 1.08 957 1291 1.24 1101 1368 1.40 1246

1048 0.85 757 1153 1.03 913 1244 1.20 1066 1326 1.37 1219 1401 1.54 1371

1090 0.97 859 1191 1.15 1023 1281 1.33 1185 1361 1.51 1345 1435 1.69 1505

1131 1.09 970 1230 1.29 1143 1318 1.48 1313 1397 1.67 1481 1470 1.86 1649

1173 1.23 1091 1269 1.43 1273 1355 1.63 1451 1433 1.83 1627 1505 2.03 1803

1215 1.38 1223 1309 1.59 1413 1393 1.80 1600 1470 2.01 1784 1540 2.21 1967

1258 1.54 1365 1349 1.76 1564 1431 1.98 1759 1506 2.20 1951 1576 2.41 2142

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Bhp -- Brake Horsepower

Watts -- Input Watts to Motor

*Motor drive range: 1300 to 1685 rpm. All other rpms require field-

supplied drive.

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1312 1.07 948 1380 1.20 1067 1445 1.34 1189 1506 1.48 1312 1564 1.62 1437

1342 1.18 1047 1411 1.32 1173 1474 1.46 1300 1535 1.61 1429 1593 1.76 1560

1374 1.30 1153 1441 1.45 1286 1505 1.60 1420 1565 1.75 1555 1622 1.91 1692

1406 1.43 1268 1473 1.58 1407 1535 1.74 1548 1595 1.90 1690 1652 2.06 1833

1438 1.57 1391 1504 1.73 1537 1567 1.90 1685 1626 2.06 1833 1682 2.23 1983

1471 1.72 1523 1536 1.89 1677 1598 2.06 1831 1657 2.24 1986 1713 2.41 2142

1504 1.87 1665 1569 2.06 1825 1630 2.24 1986 1688 2.42 2149 1744 2.60 2312

1538 2.04 1816 1602 2.23 1984 1663 2.42 2152 1720 2.61 2321 1775 2.81 2491

1572 2.23 1978 1635 2.42 2153 1695 2.62 2328 1753 2.82 2504 -- -- --

1607 2.42 2150 1669 2.63 2332 1729 2.83 2515 ......

1642 2.63 2333 1704 2.84 2523 .........

LEGEND NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.90.

3. See page 27 for general fan performance notes.

Table 19 -- Fan Performance 48HJ007 -- Vertical Discharge Units; Standard Motor (Belt Drive)*

AIRFLOW

CFM

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

967 0.63 563 1075 0.80 715 1170 0.97 861 1255 1.13 1002 1333 1.28 1139

1008 0.72 643 1112 0.91 805 1205 1.08 960 1289 1.25 1111 1366 1.42 1258

1049 0.82 731 1151 1.02 903 1241 1.20 1068 1323 1.38 1228 1399 1.56 1384

1091 0.93 827 1189 1.14 1008 1276 1.33 1183 1358 1.52 1353 1433 1.71 1519

1133 1.05 933 1229 1.26 1123 1315 1.47 1308 1393 1.67 1487 1467 1.67 1662

1176 1.18 1047 1268 1.40 1247 1352 1.62 1441 1429 1.84 1630 1501 2.04 1815

1216 1.32 1170 1308 1.55 1380 1390 1.78 1584 1466 2.01 1782 1537 2.23 1977

1261 1.47 1304 1349 1.72 1523 1429 1.96 1736 1503 2.19 1945 -- -- --

1305 1.63 1448 1390 1.89 1677 1468 2.14 1900 1540 2.38 2117 -- -- --

1348 1.80 1602 1431 2.07 1841 1507 2.33 2073 ......

1392 1.99 1768 1472 2.27 2016 .........

1435 2.19 1945 ............

1479 2.40 2135 ............

AIRFLOW

CFM

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

LEGEND

Bhp -- Brake Horsepower

Watts -- Input Watts to Motor

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1406 1.43 1273 1475 1.58 1403 1540 1.72 1531 1601 1.87 1657 1660 2.00 1780

1438 1.58 1401 1505 1.73 1541 1569 1.89 1678 1630 2.04 1813 1689 2.19 1945

1470 1.73 1537 1537 1.90 1686 1600 2.06 1833 1660 2.23 1977 1718 2.38 2118

1502 1.89 1681 1568 2.07 1840 1631 2.25 1996 --

1535 2.06 1834 1600 2.25 2002 .........

1569 2.25 1996 ............

NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.40.

3. See page 27 for general fan performance notes.

*Motor drive range: 1119 to 1585 rpm. All other rpms require field-

supplied drive.

3!

Table 20 -- Fan Performance 48HJ007 -- Vertical Discharge Units; High-Static Motor (Belt Drive)*

AIRFLOW

CFM

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

967 0.63 563 1075 0.80 715 1170 0.97 861 1255 1.13 1002 1333 1.28 1139

1008 0.72 643 1112 0.91 805 1205 1.08 960 1289 1.25 1111 1366 1.42 1258

1049 0.82 731 1151 1.02 903 1241 1.20 1068 1323 1.38 1228 1399 1.56 1384

1091 0.93 827 1189 1.14 1008 1278 1.33 1183 1358 1.52 1353 1433 1.71 1519

1133 1.05 933 1229 1.26 1123 1315 1.47 1308 1393 1.67 1487 1467 1.87 1662

1176 1.18 1047 1268 1.40 1247 1352 1.62 1441 1429 1.84 1630 1501 2.04 1815

1218 1.32 1170 1308 1.55 1380 1390 1.78 1584 1466 2.01 1782 1537 2.23 1977

1261 1.47 1304 1349 1.72 1523 1429 1.96 1736 1503 2.19 1945 1572 2.42 2149

1305 1.63 1448 1390 1.89 1677 1468 2.14 1900 1540 2.38 2117 1608 2.62 2331

1348 1.80 1602 1431 2.07 1841 1507 2.33 2073 1578 2.59 2301 1645 2.84 2524

1392 1.99 1768 1472 2.27 2016 1547 2.54 2258 1616 2.81 2495 -- -- --

1435 2.19 1945 1514 2.48 2203 1587 2.76 2455 ......

1479 2.40 2135 1556 2.70 2402 .........

AIRFLOW

CFM

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1406 1.43 1273 1475 1.58 1403 1540 1.72 1531 1601 1.87 1657 1660 2.00 1780

1438 1.58 1401 1505 1.73 1541 1569 1.89 1678 1630 2.04 1813 1689 2.19 1945

1470 1.73 1537 1537 1.90 1686 1600 2.06 1833 1660 2.23 1977 1718 2.38 2118

1502 1.89 1681 1568 2.07 1840 1631 2.25 1996 1690 2.42 2149 1747 2.59 2300

1535 2.06 1834 1600 2.25 2002 1662 2.44 2167 1721 2.62 2330 1778 2.80 2490

1569 2.25 1996 1633 2.45 2174 1694 2.64 2348 1752 2.84 2520 -- -- --

1603 2.44 2167 1666 2.65 2355 1727 2.86 2539 ......

1638 2.64 2349 1700 2.87 2546 .........

1673 2.86 2541 ............

LEGEND

Bhp -- Brake Horsepower

Watts -- Input Watts to Motor

*Motor drive range: 1300 to 1685 rpm. All other rpms require field-

supplied drive.

NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.90.

3. See page 27 for general fan performance notes.

Table 21 -- Fan Performance 48HJ004 -- Horizontal Discharge Units; Standard Motor (Belt Drive)*

AIRFLOW

CFM

90O

1000

1100

1200

1300

1400

1500

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

553 0.14 134 681 0.22 221 782 0.32 316 870 0.42 417 948 0.53 526

582 0.16 163 707 0.26 257 807 0.36 358 894 0.47 466 971 0.58 580

612 0.20 196 734 0.30 297 833 0.41 405 919 0.52 519 995 0.64 639

643 0.23 234 762 0.34 343 859 0.46 458 944 0.58 579 1020 0.71 705

675 0.28 277 790 0.40 394 886 0.52 517 969 0.65 644 1044 0.78 777

707 0.33 326 819 0.45 452 913 0.58 581 996 0.72 716 1070 0.86 855

740 0.38 382 849 0.52 515 941 0.66 653 1023 0.80 795 1096 0.95 941

AIRFLOW

CFM

90O

1000

1100

1200

1300

1400

1500

Bhp -- Brake Horsepower

Watts -- Input Watts to Motor

*Motor drive range: 680 to 1044 rpm. All other rpms require field-

supplied drive.

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1019 0.64 640 1084 0.76 760 1146 0.89 885 1203 1.02 1016 1258 1.16 1152

1042 0.70 700 1107 0.83 825 1168 0.96 956 1225 1.10 1091 -- -- --

1065 0.77 765 1130 0.90 896 1190 1.04 1032 1247 1.18 1173 -- -- --

1089 0.84 837 1153 0.98 974 1213 1.12 1115 ......

1113 0.92 915 1177 1.06 1058 .........

1138 1.01 1000 1201 1.15 1149 .........

1163 1.10 1092 ............

LEGEND NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 1.20.

3. See page 27 for general fan performance notes.

32

Table 22 iFan Performance 48HJ004 iHorizontal Discharge Units; High-Static Motor (Belt Drive)*

AIRFLOW

CFM

900

1000

1100

1200

1300

1400

1500

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

553 0.14 134 681 0.22 221 782 0.32 316 870 0.42 417 948 0.53 526

582 0.16 163 707 0.26 257 807 0.36 358 894 0.47 466 971 0.58 580

612 0.20 196 734 0.30 297 833 0.41 405 919 0.52 519 995 0.64 639

643 0.23 234 762 0.34 343 859 0.46 458 944 0.58 579 1020 0.71 705

675 0.28 277 790 0.40 394 886 0.52 517 969 0.65 644 1044 0.78 777

707 0.33 326 819 0.45 452 913 0.58 581 996 0.72 716 1070 0.86 855

740 0.38 382 849 0.52 515 941 0.66 653 1023 0.80 795 1096 0.95 941

AIRFLOW

CFM

900

1000

1100

1200

1300

1400

1500

Bhp -- Brake Horsepower

Watts -- Input Watts to Motor

*Motor drive range: 1075 to 1455 rpm. All other rpms require field-

supplied drive.

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1019 0.64 640 1084 0.78 780 1146 0.89 885 1203 1.02 1018 1258 1.18 1152

1042 0.70 700 1107 0.83 825 1168 0.96 958 1225 1.10 1091 1279 1.24 1232

1065 0.77 765 1130 0.90 896 1190 1.04 1032 1247 1.18 1173 1301 1.33 1319

1089 0.84 837 1153 0.98 974 1213 1.12 1115 1270 1.27 1262 1324 1.42 1413

1113 0.92 915 1177 1.08 1058 1237 1.21 1205 1293 1.36 1358 1347 1.52 1514

1138 1.01 1000 1201 1.15 1149 1261 1.31 1303 1317 1.47 1461 1370 1.63 1623

1163 1.10 1092 1226 1.25 1247 1285 1.41 1407 1341 1.58 1571 1394 1.75 1740

LEGEND NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.40.

3. See page 27 for general fan performance notes.

Table 23 iFan Performance 48HJ005 iHorizontal Discharge Units; Standard Motor (Belt Drive)*

AIRFLOW

CFM

1200

1300

1400

1500

1600

1700

1800

1900

2000

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

643 0.23 234 762 0.34 343 859 0.48 458 944 0.58 579 1020 0.71 705

675 0.28 277 790 0.40 394 886 0.52 517 989 0.65 644 1044 0.78 777

707 0.33 326 819 0.45 452 913 0.58 581 996 0.72 716 1070 0.86 855

740 0.38 382 849 0.52 515 941 0.66 653 1023 0.80 795 1096 0.95 941

773 0.45 444 879 0.59 586 970 0.73 731 1050 0.88 880 1123 1.04 1034

807 0.52 513 910 0.87 683 999 0.82 817 1078 0.98 973 1150 1.14 1134

841 0.59 589 942 0.75 749 1029 0.91 910 1106 1.08 1074 -- -- --

875 0.68 674 974 0.85 842 1059 1.02 1012 1135 1.19 1184 -- -- --

910 0.77 767 1006 0.95 944 1090 1.13 1122 ......

AIRFLOW

CFM

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1089 0.84 837 1153 0.98 974 1213 1.12 1115 ......

1113 0.92 915 1177 1.06 1058 .........

1138 1.01 1000 1201 1.15 1149 .........

1163 1.10 1092 ............

1189 1.20 1191 ............

NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 1.20.

3. See page 27 for general fan performance notes.

1200

1300

1400

1500

1600

1700

1800

1900

2000

LEGEND

Bhp -- Brake Horsepower

Watts -- Input Watts to Motor

*Motor drive range: 770 to 1185 rpm. All other rpms require field-

supplied drive.

33

Table 24 iFan Performance 48HJ005 iHorizontal Discharge Units; High-Static Motor (Belt Drive)*

AIRFLOW

CFM

1200

1300

1400

1500

1600

1700

1800

1900

2000

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

643 0.23 234 762 0.34 343 859 0.46 458 944 0.58 579 1020 0.71 705

675 0.28 277 790 0.40 394 886 0.52 517 969 0.65 644 1044 0.78 777

707 0.33 326 819 0.45 452 913 0.58 581 996 0.72 716 1070 0.86 855

740 0.38 382 849 0.52 515 941 0.66 653 1023 0.80 795 1096 0.95 941

773 0.45 444 879 0.59 586 970 0.73 731 1050 0.88 880 1123 1.04 1034

807 0.52 513 910 0.67 663 999 0.82 817 1078 0.98 973 1150 1.14 1134

841 0.59 589 942 0.75 749 1029 0.91 910 1106 1.08 1074 1177 1.25 1242

875 0.68 674 974 0.85 842 1059 1.02 1012 1135 1.19 1184 1205 1.37 1360

910 0.77 767 1006 0.95 944 1090 1.13 1122 1185 1.31 1302 1234 1.49 1485

AIRFLOW

CFM

1200

1300

1400

1500

1600

1700

1800

1900

2000

Bhp -- Brake Horsepower

Watts -- Input Watts to Motor

*Motor drive range: 1075 to 1455 rpm. All other rpms require field-

supplied drive.

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1089 0.84 837 1153 0.98 974 1213 1.12 1115 1270 1.27 1262 1324 1.42 1413

1113 0.92 915 1177 1.06 1058 1237 1.21 1205 1293 1.36 1358 1347 1.52 1514

1138 1.01 1000 1201 1.15 1149 1261 1.31 1303 1317 1.47 1461 1370 1.63 1623

1163 1.10 1092 1226 1.25 1247 1285 1.41 1407 1341 1.58 1571 1394 1.75 1740

1189 1.20 1191 1252 1.36 1353 1310 1.53 1520 1365 1.70 1690 1418 1.87 1865

1216 1.31 1299 1277 1.48 1468 1335 1.65 1640 1390 1.83 1817 1442 2.01 1998

1242 1.42 1414 1303 1.60 1590 1361 1.78 1770 1415 1.96 1953 1467 2.15 2140

1270 1.55 1538 1330 1.73 1721 1387 1.92 1908 1441 2.11 2098 1493 2.30 2292

1297 1.68 1672 1357 1.87 1862 1414 2.07 2055 1467 2.26 2252 -- -- --

LEGEND NOTES:

1. Boldface indicates field-supplied drive is required,

2. Maximum continuous bhp is 2,40.

3. See page 27 for general fan performance notes.

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Table 25 i Fan Performance 48HJ006, Single-Phase iHorizontal Discharge Units;

Standard Motor (Belt Drive)*

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

800 0.39 350 904 0.49 438 999 0.60 535 1087 0.72 640 1169 0.85 753

839 0.46 412 938 0.57 505 1030 0.68 605 1115 0.80 714 1195 0.93 829

879 0.54 483 974 0.65 580 1062 0.77 684 1144 0.90 796 1221 1.03 914

919 0.63 561 1010 0.75 663 1095 0.87 771 1174 1.00 886 1250 1.14 1008

960 0.73 648 1047 0.85 754 1129 0.98 867 1206 1.11 986 1279 1.25 1111

1001 0.84 744 1085 0.96 855 1163 1.09 972 1238 1.23 1095 -- -- --

1043 0.96 850 1123 1.09 965 1199 1.22 1086 ......

1085 1.09 966 1162 1.22 1086 .........

1127 1.23 1092 ............

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

m m

m m

m m

m m

m m

m m

m m

LEGEND

1247 0.98 873 1320 1.13 1002 1390 1.28 1137 -- -- --

1270 1.07 952 1342 1.22 1083 ......

1295 1.17 1040 .........

1321 1.28 1137 .........

Bhp -- Brake Horsepower

Watts -- Input Watts to Motor

NOTES:

m

m

m

m

m

m

m

m m

m m

m m

m m

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 1.30.

3. See page 27 for general fan performance notes.

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

*Motor drive range: 1035 to 1460 rpm. All other rpms require field-

supplied drive.

34

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Table 26 -- Fan Performance 48HJ006, Three-Phase -- Horizontal Discharge Units;

Standard Motor (Belt Drive)*

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

800 0.39 350 904 0.49 438 999 0.60 535 1087 0.72 640 1169 0.85 753

839 0.46 412 938 0.57 505 1030 0.68 605 1115 0.80 714 1195 0.93 829

879 0.54 483 974 0.65 580 1062 0.77 684 1144 0.90 796 1221 1.03 914

919 0.63 561 1010 0.75 663 1095 0.87 771 1174 1.00 886 1250 1.14 1008

960 0.73 648 1047 0.85 754 1129 0.98 887 1206 1.11 986 1279 1.25 1111

1001 0.84 744 1085 0.98 855 1163 1.09 972 1238 1.23 1095 1309 1.38 1224

1043 0.98 850 1123 1.09 985 1199 1.22 1086 1271 1.37 1213 1340 1.52 1348

1085 1.09 986 1162 1.22 1086 1235 1.36 1211 1305 1.51 1342 1372 1.67 1479

1127 1.23 1092 1201 1.37 1217 1272 1.52 1347 1340 1.67 1482 1405 1.83 1623

1169 1.38 1229 1241 1.53 1359 1310 1.68 1493 1375 1.84 1633 1439 2.00 1778

1212 1.55 1378 1281 1.70 1513 1348 1.88 1652 1412 2.02 1796 1473 2.19 1945

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Bhp -- Brake Horsepower

Watts -- Input Watts to Motor

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1247 0.98 873 1320 1.13 1002 1390 1.28 1137 1457 1.44 1280 1522 1.61 1430

1270 1.07 952 1342 1.22 1083 1411 1.37 1221 1476 1.54 1365 1540 1.71 1517

1295 1.17 1040 1365 1.32 1173 1432 1.48 1313 1497 1.64 1459 1559 1.82 1612

1321 1.28 1137 1390 1.43 1273 1455 1.59 1415 1518 1.76 1563 1579 1.93 1718

1348 1.40 1243 1415 1.58 1381 1479 1.72 1526 1541 1.89 1677 1601 2.06 1834

1377 1.53 1359 1442 1.69 1500 1505 1.86 1648 1565 2.03 1801 1624 2.21 1961

1406 1.67 1485 1470 1.83 1629 1531 2.00 1780 1591 2.18 1936 1648 2.36 2098

1437 1.83 1621 1499 1.99 1769 1559 2.16 1923 1617 2.34 2082 -- -- --

1468 1.99 1769 1529 2.16 1920 1587 2.34 2077 ......

1500 2.17 1928 1559 2.35 2083 .........

1533 2.36 2098 ............

LEGEND NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.40,

3. See page 27 for general fan performance notes.

*Motor drive range: 1035 to 1460 rpm. All other rpms require field-

supplied drive.

Table 27 -- Fan Performance 48HJ006 -- Horizontal Discharge Units; High-Static Motor (Belt Drive)*

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

800 0.39 350 904 0.49 438 999 0.60 535 1087 0.72 640 1169 0.85 753

839 0.46 412 938 0.57 505 1030 0.68 605 1115 0.80 714 1195 0.93 829

879 0.54 483 974 0.65 580 1062 0.77 684 1144 0.90 796 1221 1.03 914

919 0.63 561 1010 0.75 663 1095 0.87 771 1174 1.00 886 1250 1.14 1008

960 0.73 648 1047 0.85 754 1129 0.98 867 1206 1.11 986 1279 1.25 1111

1001 0.84 744 1085 0.96 855 1163 1.09 972 1238 1.23 1095 1309 1.38 1224

1043 0.96 850 1123 1.09 965 1199 1.22 1086 1271 1.37 1213 1340 1.52 1346

1085 1.09 966 1162 1.22 1086 1235 1.36 1211 1305 1.51 1342 1372 1.87 1479

1127 1.23 1092 1201 1.37 1217 1272 1.52 1347 1340 1.67 1482 1405 1.83 1623

1169 1.38 1229 1241 1.53 1359 1310 1.68 1493 1375 1.84 1633 1439 2.00 1778

1212 1.55 1378 1281 1.70 1513 1348 1.86 1652 1412 2.02 1798 1473 2.19 1945

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Bhp -- Brake Horsepower

Watts -- Input Watts to Motor

*Motor drive range: 1300 to 1685 rpm. All other rpms require field-

supplied drive.

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1247 0.98 873 1320 1.13 1002 1390 1.28 1137 1457 1.44 1280 1522 1.61 1430

1270 1.07 952 1342 1.22 1083 1411 1.37 1221 1476 1.54 1365 1540 1.71 1517

1295 1.17 1040 1365 1.32 1173 1432 1.48 1313 1497 1.64 1459 1559 1.82 1612

1321 1.28 1137 1390 1.43 1273 1455 1.59 1415 1518 1.78 1563 1579 1.93 1718

1348 1.40 1243 1415 1.58 1381 1479 1.72 1528 1541 1.89 1677 1601 2.08 1834

1377 1.53 1359 1442 1.69 1500 1505 1.88 1648 1565 2.03 1801 1624 2.21 1961

1406 1.67 1485 1470 1.83 1629 1531 2.00 1780 1591 2.18 1938 1648 2.36 2098

1437 1.83 1621 1499 1.99 1769 1559 2.16 1923 1617 2.34 2082 1673 2.53 2246

1488 1.99 1769 1529 2.16 1920 1587 2.34 2077 1644 2.52 2239 1699 2.71 2406

1500 2.17 1928 1559 2.35 2083 1616 2.53 2243 1672 2.71 2408 1726 2.90 2579

1533 2.36 2098 1591 2.54 2257 1647 2.73 2421 ......

LEGEND NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.90.

3. See page 27 for general fan performance notes.

35

Table 28 -- Fan Performance 48HJ007 -- Horizontal Discharge Units; Standard Motor (Belt Drive)*

AIRFLOW

CFM

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

EXTERNAL STATIC PRESSURE(in. wg)

0.2 0.4 0,6 0,8 1,0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

913 0.64 569 1010 0.80 715 1098 0.98 869 1178 1.16 1032 1252 1.35 1203

952 0.73 652 1046 0.91 805 1131 1.09 965 1210 1.28 1134 1282 1.48 1311

992 0.84 744 1083 1.02 903 1166 1.21 1070 1242 1.40 1245 1313 1.61 1427

1032 0.95 844 1120 1.14 1010 1200 1.33 1184 1275 1.54 1365 1348 1.75 1553

1073 1.07 954 1158 1.27 1127 1236 1.47 1307 1308 1.68 1495 1377 1.90 1689

1114 1.21 1074 1196 1.41 1254 1272 1.62 1440 1343 1.84 1634 1409 2.07 1834

1155 1.36 1204 1234 1.57 1391 1308 1.78 1584 1377 2.01 1784 1443 2.24 1990

1196 1.51 1345 1273 1.73 1538 1348 1.96 1738 1412 2.19 1945 -- -- --

1238 1.69 1497 1312 1.91 1697 1382 2.14 1904 1448 2.38 2117 -- -- --

1280 1.87 1660 1352 2.10 1867 1420 2.34 2081 ......

1322 2.07 1835 1392 2.31 2050 .........

1364 2.28 2023 ............

AIRFLOW

CFM

1800 -- --

1900 -- --

2000 .....

2100 1411 1.97 1748 1473 2.20 1950 .........

2200 1441 2.13 1890 1503 2.36 2097 .........

2300 1473 2.30 2041 ............

2400 ...............

2500 ...............

2600 ...............

2700 ...............

2800 ...............

2900 ...............

3000 ...............

LEGEND NOTES:

1. Boldface indicates field-supplied drive is required.

Bhp -- Brake Horsepower 2. Maximum continuous bhp is 2.40.

Watts -- Input Watts to Motor 3. See page 27 for general fan performance notes.

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1322 1.56 1382 1388 1.77 1568 1451 1.98 1762 1510 2.21 1962 --

1351 1.68 1495 1416 1.90 1686 1477 2.12 1885 1536 2.35 2090 --

1380 1.82 1617 1444 2.04 1814 1505 2.27 2017 --

*Motor drive range: 1119 to 1585 rpm. All other rpms require field-supplied

drive.

Table 29 -- Fan Performance 48HJ007 -- Horizontal Discharge Units; High-Static Motor (Belt Drive)*

AIRFLOW

CFM

EXTERNAL STATIC PRESSURE(in. wg)

0.2 0.4 0,6 0,8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

913 0.64 569 1010 0.80 715 1098 0.98 869 1178 1.16 1032 1252 1.35 1203

952 0.73 652 1046 0.91 805 1131 1.09 965 1210 1,28 1134 1282 1,48 1311

992 0.84 744 1083 1.02 903 1166 1,21 1070 1242 1.40 1245 1313 1.61 1427

1032 0,95 844 1120 1.14 1010 1200 1,33 1184 1275 1,54 1365 1345 1.75 1553

1073 1.07 954 1158 1.27 1127 1236 1.47 1307 1308 1.68 1495 1377 1.90 1689

1114 1.21 1074 1196 1.41 1254 1272 1.62 1440 1343 1.84 1634 1409 2.07 1834

1155 1.36 1204 1234 1.57 1391 1308 1.78 1584 1377 2.01 1784 1443 2.24 1990

1196 1,51 1345 1273 1.73 1538 1348 1.96 1738 1412 2.19 1945 1477 2.43 2157

1238 1,69 1497 1312 1.91 1697 1382 2.14 1904 1448 2.38 2117 1511 2.63 2335

1280 1.87 1660 1352 2.10 1867 1420 2.34 2081 1484 2.59 2300 1546 2.84 2526

1322 2.07 1835 1392 2.31 2050 1458 2.56 2270 1521 2.81 2496 -- -- --

1364 2.28 2023 1432 2.53 2245 1496 2.78 2472 ......

1406 2.50 2224 1472 2.76 2452 .........

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

AIRFLOW

CFM

1800

1900

2000

2100 -- --

2200 -- --

2300 .....

2400 1505 2,48 2203 1564 2.73 2422 .........

2500 1537 2.68 2376 ............

2600 1571 2.88 2560 ............

2700 ...............

2800 ...............

2900 ...............

3000 ...............

LEGEND NOTES:

1. Boldface indicates field-supplied drive is required.

Bhp -- Brake Horsepower 2. Maximum continuous bhp is 2.90.

Watts -- Input Watts to Motor 3. See page 27 for general fan performance notes.

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1322 1,58 1382 1388 1.77 1568 1451 1.98 1762 1510 2,21 1962 1568 2,44 2169

1351 1.68 1495 1416 1,90 1686 1477 2,12 1885 1536 2.35 2090 1593 2.59 2302

1380 1.82 1617 1444 2.04 1814 1505 2.27 2017 1563 2.51 2227 1619 2.75 2443

1411 1.97 1748 1473 2.20 1950 1533 2.43 2159 1590 2.67 2374 --

1441 2.13 1890 1503 2.36 2097 1562 2.60 2311 1618 2.85 2532 --

1473 2.30 2041 1533 2.54 2254 1591 2.79 2474 --

*Motor drive range: 1300 to 1685 rpm. All other rpms require field-supplied

drive.

Table 30 -- Accessory/FlOP EconoMi$er IV and EconoMi$er2 Static Pressure* (in. wg)

II I

COMPONENT 1250 1500 1750 2000 2250 2500 2750

0.045 0,065 0.08 0.12 0.145 0.175 0,22

-- -- 0.1 0.125 0.15 0.18 0.225

Vertical EconoMi$er2 and EconoMi$er IV

Horizontal EconoMi$er2 and EconoMi$er IV

LEGEND

FlOP -- Factory-Installed Option

I 3000

0.255

0.275

*The static pressure must be added to external static pressure. The sum and

the evaporator entering-air cfm should be used in conjunction with the Fan

Performance tables to determine indoor blower rpm and watts.

36

PRE-START-UP

Failure to observe the following warnings could result in

serious pel.sonal injuu:

1. Follow recognized safety practices and wear protec-

tive goggles when checking or servicing refi'igerant

system.

2. Do not operate compressor or provide any electric

power to unit unless compressor terminal cover is in

place and secured.

3. Do not remove complessor terminal cover until all

electrical sources +uedisconnected.

4. Relieve all pressure from system before touching or

disturbing anything inside terminal box if refiigerant

leak is suspected around complessor terminals.

5. Never attempt to repair soldered connection while re-

fiigemnt system is under pressure.

6. Do not use torch to remove any component. System

cont+fins oil and refiigerant under pressure. To mauve

a component, wear protective goggles and proceed as

follows:

a. Shut off electrical power and then gas to unit.

b. Recover refrigerant to relieve all pressure from

system using both high-pressure and low-

pressure ports.

c. Cut component connection tubing with tubing

cutter and remove component from unit.

d. Carefully unsweat remaining tubing stubs

when necessa U. Oil can ignite when exposed

to torch flame.

Proceed as follows to inspect and prepare the unit for initial

start-up:

1. Remove all access panels.

2. Read and follow instructions on all WARNING, CAU-

TION, and INFORMATION labels attached to, or

shipped with, unit.

3. Make the following inspections:

a. Inspect for shipping and handling damages such as

broken lines, loose parts, or disconnected wires, etc.

b. Inspect for oil at all refrigerant tubing connections

and on unit base. Detecting oil generally indicates

a refrigerant leak. Leak-test all refrigerant tubing

connections using electronic leak detector, halide

torch, or liquid-soap solution.

c. Inspect all field-wiring and factou-wiring con-

nections. Be sure that connections are completed

and tight. Be sure that wires are not in contact with

refiigerant tubing or sharp edges.

d. Inspect coil tins. If damaged during shipping and

handling, carefully straighten fins with a fin comb.

4. Verify the following conditions:

a. Make sure that condenser-fan blade are correctly

positioned in fan orifice. See Condenser-Fan

Adjustment section on page 43 for more details.

b. Make sure that air filter(s) is in place.

c. Make sure that condensate drain trap is filled with

water to ensure proper drainage.

d. Make sure that all tools and miscellaneous loose

parts have been removed.

START-UP

Unit Preparation--Make sure that unit lms been

installed in accordance with installation instructions and appli-

cable codes.

Gas Piping -- Check gas piping for leaks.

Disconnect gas piping from unit when leak

testing at pressure greater than 1/2 psig. Pres-

sures greater than 1/2 psig will cause gas

valve damage resulting in hazardous condi-

tion. If gas valve is subjected to pressure

greater than 1/2 psig, it must be replaced

before use. When pressure testing field-

supplied gas piping at pressures of 1/2 psig

or less, a unit connected to such piping must

be isolated by manu_dly closing the gas

valve.

Return-Air Filters--Make sure correct filters am

installed in unit (see Table 1). Do not operate unit without

return-air filte_.s.

Outdoor-Air Inlet Screens- Outdoor-air inlet screen

must be in place before operating unit.

Compressor Mounting -- Compressorsme internally

spring mounted. Do not loosen or remove compressor hold-

down bolts.

Internal Wiring- Check all electrical connections in

unit control boxes. Tighten as required.

Refrigerant Service Ports--Each unit system has

4 Schrader-type service ports: one on the suction line, one on

the liquid line, and 2 on the compressor discharge line. Be sum

that caps on the ports are tight. Two additional Schmder valves

;ue located under the high-pressure and low-pressure switches,

respectively.

High Flow Refrigerant Valves -- Two high flow valves

;u'e located on the hot gas tube coining out of the colnpressor and

the suction tube going into the compressol: Large black plastic

caps identify these valves. These valves have O-rings inside

which screw the cap onto a brass body to prevent leaks. No field

access to these valves is available at this time. Ensure the plastic

caps remain on the valves and are tight or the possibility of

refrigerant leakage could occm:

Compressor Rotation -- On 3-phase units with scroll

compressors, it is important to be certain compressor is rotating

in the proper direction. To determine whether or not compres-

sor is rotating in the proper direction:

1. Connect service gages to suction and disch;uge pressure

fittings.

2. Energize the compressoc

3. The suction pressure should drop and the disch;uge pres-

sure should rise, as is normal on any st;u't-up.

If the suction pressure does not diop and the discharge pres-

sure does not rise to normal levels:

1. Note that the evaporator fan (size 006 and 007 only) is

probably also rotating in the wrong direction.

2. Turn off power to the unit and install lockout tag.

3. Reverse any two of the unit power leads.

4. Reenergize to the compressol: Check pressures.

37

Thesuctionanddischm'gepressurelevelsshouldnowmove

totheirnorm_flstart-uplevels.

NOTE:Whenthecompressorisrotatinginthewrongdirec-

tion,fileunitwillmakeanelevatedlevelofnoiseandwillnot

providecooling.

Cooling -- SetspacethermostattoOFFposition.Tostmt

unit,turnonmainpowersupply.Setsystemselectorswitchat

COOLpositionandfanswitchatAUTO.position.Adjustther-

mostattoasettingbelowroomtemperature.Compressorstarts

onclosureofcontacto_:

Checkunitcharge.RefertoRefrigerantChargesectionon

page43.

Resetthermostatat a positionaboveroomtemperature.

Compressorwillshutoff.Evaporatorfanwillshutoffaftera

30-seconddelay.

TOSHUTOFFUNIT-- SetsystemselectorswitchatOFF

position.Resettingthermostatatapositionaboveroomtem-

peratureshutsunitofftemporarilyuntilspacetemperatureex-

ceedsthermostatsetting.Unitsmeequippedwith Cycle-

LOCTM protection device. Unit shuts down on any safety trip,

and indicator light on thermostat comes on. Check reason for

all safety trips.

Compressor restart is accomplished by manual reset at the

thermostat by turning the selector switch to OFF and then to

ON position.

Main Burners -- Main burnel_ me factory set and should

require no adjustment.

TO CHECK ignition of main burners and heating controls,

move thermostat set point above room temperature and verify

that the burners light and evaporator fan is energized. Check

heating effect, fllen lower the thermostat setting below the

room temperature and verify that the burners and evaporator

fan turn off.

Refer to Tables 3 IA and 31B for the correct orifice to use at

high altitudes.

Table 31A -- Altitude Compensation* --

48HJ004-007 Standard Units

ELEVATION

(ft)

0-2,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

10,000

11,000

12,000

13,000

14,000

72,000 AND

115,000 BTUH

NOMINAL INPUT

Natural Liquid

Gas Propane

Orifice Orifice

Sizet Size]-

33 43

36 44

36 45

37 45

38 46

40 47

41 48

42 49

43 50

44 50

45 51

46 52

47 52

48 53

Natural

Gas

Orifice

Size]-

3O

31

31

32

32

34

35

36

37

39

41

42

43

44

150,000 BTUH

NOMINAL INPUT

Liquid

Propane

Orifice

Size]-

37

39

40

41

42

43

43

44

45

46

47

48

49

50

*As the height above sea level increases, there is less oxygen per

cubic foot of air. Therefore, heat input rate should be reduced at

higher altitudes.

1-Orifices available through your Carrier distributor.

Table 31 B -- Altitude Compensation* --

48HJ004-006 Low NOx Units

ELEVATION

(ft)

0-2,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

10,000

11,000

12,000

13,000

14,000

60,000 AND

90,000 BTUH

NOMINAL INPUT

Natural Liquid

Gas Propane

Orifice Orifice

Size]- Size]-

38 45

40 47

41 48

42 49

43 49

43 50

44 50

45 51

46 52

47 52

48 53

49 53

50 54

51 54

120,000 BTUH

NOMINAL INPUT

Natural Liquid

Gas Propane

Orifice Orifice

Size Size]-

32 42

33 43

35 43

36 44

37 45

38 45

39 46

41 47

42 48

43 49

44 50

44 51

46 52

47 52

*As the height above sea level increases, there is less oxygen per

cubic foot of air. Therefore, the input rate should be reduced at

higher altitudes.

1-Orifices are available through your local Carrier distributor.

Heating

1. Purge gas supply line of air by opening union ahead of

the gas valve. If gas odor is detected, tighten union and

wait 5 minutes before proceeding.

2. Turn on electrical supply and manual gas valve.

3. Set system switch selector at HEAT position and fan

switch at AUTO. or ON position. Set heating temperature

lever above room temperature.

4. The induced-draft motor will start.

5. After a call for heating, the main burnel_ should light

wifllin 5 seconds. If the burner does not light, then fllere is

a 22-second delay before anofller 5-second try. If the

burner still does not light, file time delay is repeated. If the

burner does not light within 15 minutes, there is a lock-

out. To reset the control, break the 24 v power to WI.

6. The evaporator-fan motor will turn on 45 seconds after

burner ignition.

7. The evaporator-fan motor will turn off in 45 seconds after

the fllermostat temperature is satisfied.

8. Adjust airflow to obtain a temperature rise within the

range specified on the unit nameplate.

NOTE: The default value for the evaporator-fan motor on/off

delay is 45 seconds. The Integrated Gas Unit Controller (IGC)

modifies this v_flue when abnormal limit switch cycles occm:

Based upon unit operating conditions, the on delay can be

reduced to 0 seconds and the off delay can be extended to

180 seconds. When one flash of the LED (light-emitting diode)

is observed, the evaporator-fan on/off delay has been modified.

If the limit switch trips at the st_ut of the heating cycle dur-

ing the evaporator on delay, the time period of the on delay for

the next cycle will be 5 seconds less than the time at which the

switch tripped. (Example: If the limit switch trips at 30 sec-

onds, the evaporator-fan on delay for the next cycle will occur

at 25 seconds.) To prevent short-cycling, a 5-second leduction

will only occur if a minimum of 10 minutes has elapsed since

the last call for heating.

38

Theevaporator-fanoffdelaycanalsobemodified.Oncethe

callforheatinghasended,thereisa10-minuteperiodduring

whichthemodificationcanoccm:If thelimitswitchtripsdur-

ingthisperiod,theevaporator-fanoffdelaywill increaseby

15seconds.A maximumof9 tripscanoccm:extendingthe

evaporator-fanoffdelayto180seconds.

Torestoretheoriginaldefaultvalue,resetthepowertothe

unit.

TOSHUTOFFUNIT--Set systemselectorswitchat off

position.Resettingheatingselectorleverbelowroomtempera-

turewilltemponuilyshutunitoffuntilspacetemperaturefalls

belowthermostatsetting.

Safety Relief --A soft-solder joint at the suction service

Schmder port provides pressure relief under abnorm_fl tempera-

ture and pressure conditions.

Ventilation (Continuous Fan)- Set fan and system

selector switches at ON and OFF positions, lespectively.

Evaporator ftm operates continuously to provide constant air

circulation. When the evaporator-fan selector switch is turned

to the OFF position, there is a 30-second delay before the fan

turns off.

Operating Sequence

COOLING. UNITS WITHOUT ECONOMIZER -- When

thermostat c',_ls for cooling, terminals G and YI me energized.

The indoor-fan contactor (IFC) and complessor contactor tue en-

ergized and indoor-fan motol: complessol: and outdoor fan start.

The outdoor fan motor runs continuously while unit is cooling.

HEATING. UNITS WITHOUT ECONOMIZER --When the

thermostat calls for heating, terminal WI is energized. To pre-

vent thermostat short-cycling, the unit is locked into the

Heating mode for at least 1 minute when WI is energized. The

induced-draft motor is energized and the burner ignition

sequence begins. The indoor (evaporator) fan motor (IFM) is

energized 45 seconds after a flame is ignited. On units equipped

for two stages of heat, when additiomfl heat is needed, W2 is

energized and the high-fire solenoid on the main gas valve

(MGV) is energized. When the therlnostat is satisfied and WI

is deenergized, the [FM stops after a 45-second time-off dek%

COOLING. UNITS WITH ECONOMISER IV -- When free

cooling is not available, the compressoLs will be controlled by

the zone thermostat. When fiee cooling is available, the

outdoor-air damper is modulated by the EconoMiSer IV con-

trol to provide a 50 to 55 F supply-air temperature into the

zone. As the supply-air temperatme fluctuates above 55 or be-

low 50 H the dampeLs will be modulated (open or close) to

bring the supply-air temperatme back within the set points.

Integrated EconoMiSer IV operation on single-stage units

requires a 2-stage thermostat (YI and Y2).

For EconoMiSer IV operation, there must be a thermostat

call for the fan (G). This will move the damper to its minimum

position during the occupied mode.

If the increase in cooling capacity causes the supply-air tem-

perature to drop below 45 F, then the outdoor-air damper posi-

tion will be fi._lly closed. If the supply-air temperature contin-

ues to frill, the outdoor-air dmnper will close. Control returns to

norm_d once the supply-air temperature rises above 48 E

If optional power exhaust is inst_dled, as the outdoor-air

damper opens and closes, the power exhaust fans will be ener-

gized and deenergized.

If field-installed accessory CO2 sensors are connected to the

EconoMiSer IV control, a demand controlled ventilation strate-

gy will begin to operate. As the CO2 level in the zone increases

above the CO2 set point, the minimum position of the damper

will be increased proportionally. As the CO2 level decreases

because of the inoease in fresh ail: the outdoor-air damper will

be proportionally closed. Damper position will follow the high-

er demand condition from DCV mode or free cooling mode.

Damper movement from full closed to full open (or vice

versa) will take between 11/2and 21/2 minutes.

If free cooling can be used as determined fi_m the appropri-

ate changeover command (switch, dry bulb, enthalpy curve,

differential dry bulb, or differential enthalpy), a c;dl for cooling

(YI closes at the thermostat) will cause the control to modulate

the dmnpers open to maintain the supply air temperature set

point at 50 to 55 E

As the supply air temperature drops below the set point

range of 50 to 55 H the control will modulate the outdoor-air

dampers closed to maintain the proper supply-air temperature.

HEATING. UNITS WITH ECONOMISER IV -- When the

room temperature calls for heat, the heating controls are ener-

gized as described in the Heating, Units Without Economizer

section. When the thermostat is satisfied, the economizer

damper moves to the minimum position.

COOLING. UNITS WITH ECONOMISER2, PREMIER-

LINK TM CONTROL AND A THERMOSTAT -- When free

cooling is not available, the compressors will be controlled by

the PremierLink control in response to the YI and Y2 inputs

fi_m the thermostat.

The PremierLink control will use the following information

to determine if free cooling is available:

•Indoor fan has been on for at least 30 seconds.

• The SPT. SAT. and OAT inputs must have valid readings.

•OAT must be less than 75 E

• OAT must be less than SPT.

• Enthalpy must be LOW (may be jumpered if an enthalpy

sensor not available).

• Economizer position is NOT forced.

Pre-cooling occurs when the is no call from the thermostat

except G Pre-cooling is defined as the economizer modulates

to provide 70 F supply all:

When free cooling is available the PremierLink control will

control the compressors and economizer to provide a supply-

air temperature determined to meet the YI and Y2 calls from

the thermostat using the following three routines. The three

control routines are based on OAT.

The 3 routines are based on OAT where:

SASP = Supply Air Set Point

DXCTLO = Direct Expansion Cooling Lockout Set Point

PID = Proportional Integral

Routine 1 (OAT < DXCTLO)

• YI energized - economizer maintains a SASP =

(SATLOI + 3).

• Y2 energized - economizer maintains a SASP =

(SATLO2 + 3).

Routine 2 (DXCTLO < OAT < 68 F)

• If only YI energized, the economizer maintains a SASP

=(SATLOI +3).

• If SAT >SASP +5and economizer position >80%,

economizer will go to minimum position for 3 minutes or

until SAT > 68 E

• First stage of mechanical cooling will be energized.

• Integrator resets.

• Economizer opens again and controls to current SASP

after stage one on for 90 seconds.

• With YI and Y2 energized Economizer maintains an

SASP = SATLO2 + 3.

• If SAT > SASP + 5 and economizer position >80%.

economizer will go to minimum position for 3 minutes or

until SAT > 68 E

39

•If compressor one is on then second stage of mechanical

cooling will be energized. Otherwise the first stage will

be energized.

• Integrator resets.

• Economizer opens again and controls to SASP after

stage one on for 90 seconds.

Routine 3 (OAT > 68)

• Economizer is opened 100%.

• Compressors 1and 2 are cycled based on YI and Y2

using minimum on and off times and watching the sup-

ply air temperature as compared to SATLOI and

SATLO2 set points.

If optional power exhaust is installed, as the outdoor-air

damper opens and closes, the power exhaust fans will be ener-

gized and deenergized.

If field-installed accessoly CO2 sensors ale connected to the

PremierLink TM control, a PID-controlled demand ventilation

strategy will begin to operate. As the CO2 level in the zone

increases above the CO2 set point, the minimum position of the

dmnper will be increased proportionally. As the CO2 level

decreases because of the increase in fresh aik the outdoor-air

dmnper will be proportionally closed.

HEATING, UNITS WITH ECONOMISER2, PREMIERLINK

CONTROL AND A THERMOSTAT -- When the thermostat

calls for heating, terminal Wl is energized. The PremierLink

control will move the economizer damper to the minimum po-

sition if there is a call for G and closed if there is a call for WI

without G In order to prevent thermostat from short cycling,

the unit is locked into the heating mode for at least 10 minutes

when WI is energized. The induced-draft motor is then ener-

gized and the burner ignition sequence begins.

On units equipped for two stages of heat, when additional

heat is needed, W2 is energized and the high-fire solenoid on

the main gas valve (MGV) is energized. When the thermostat

is satisfied and WI is deenergized, the IFM stops after a

45-second time-off delay unless G is still maintained.

COOLING. UNITS WITH ECONOMI$ER2, PREMIER-

LINK CONTROL AND A ROOM SENSOR -- When free

cooling is not available, the compressors will be controlled by

the PremierLink controller using a PID Error reduction calcula-

tion as indicated by Fig 47.

The PremierLink controller will use the following informa-

tion to determine if fiee cooling is available:

• Indoor fan has been on for at least 30 seconds.

• The SPT, SAT, and OAT inputs must have valid readings.

• OAT must be less than 75 E

•OAT must be less than SPT.

• Enthalpy must be LOW (may be jumpered if an enthalpy

sensor is not available).

•Economizer position is NOT forced.

When flee cooling is available, the outdoor-air damper is

positioned through the use of a Proportional Integral (PID) con-

trol process to provide a calculated supply-air temperature into

the zone. The supply air will maintain the space temperature be-

tween the heating and cooling set points as indicated in Fig. 48.

The PmmierLink control will integrate the compressol.s

stages with the economizer based on similm logic as the three

routines listed in the previous section. The SASP will float up

and down based on the error reduction calculations that com-

pme space temperature and space set point.

When outside-air temperature conditions require the econo-

mizer to close for a compressor stage-up sequence, the econo-

mizer control integrator is reset to zero after the stage-up se-

quence is completed. This prevents the supply-air temperature

fiom dropping too quickly and creating a fieeze condition that

would make the compressor turn off prematurely.

The high space set point is used for DX (direct expansion)

cooling control, while the economizer space set point is a

calculated value between the heating and cooling set points.

The economizer set point will always be at least one degree

below the cooling set point, allowing for a smooth transition

fi'om mechanical cooling with economizer assist, back to

economizer cooling as the cooling set point is achieved.

The compressors may be used for initial cooling then the

PremierLink controller will modulate the economizer using an

error reduction calculation to hold the space temperature

between the heating and cooling set points. See Fig. 48.

The controller uses the following conditions to determine

economizer cooling:

• Enthalpy is Low

• SAT reading is available

• OAT reading is available

• SPT reading is available

• OAT < SPT

• Economizer Position is NOT forced

If any of the above conditions are not met, the economizer

submaster reference (ECSR) is set to maximum limit and the

damper moves to minimum position. The operating sequence

is complete. The ECSR is recalculated evely 30 seconds.

If an optional power exhaust is installed, as the outdoor-air

damper opens and closes, the power exhaust fans will be

energized and deenergized.

If field-installed accessoly CO: sensors me connected to

the PremierLink TM control, a PID-controlled demand ventila-

tion strategy will begin to operate. As the CO2 level in the zone

increases above the CO: set point, the minimum position of the

damper will be increased proportionally. As the CO2 level

decreases because of the increase in flesh aik the outdoor-air

damper will be proportionally closed.

TEMPERATURE CONTROL

75_

LU

; 741 ...............................................

'_ 73

Lu ...... SET POINT

m_'_"71 -- TEMPERATURE

ua 70

o

694

CO 68J

TIME

NOTE: PremierLink control performs smart staging of 2 stages of DX

cooling and upto 3 stages of heat.

Fig. 47 -- DX Cooling Temperature

Control Example

LU

££

£[2

LU

0.

LU

p-

LU

©

O3

TEMPERATURE CONTROL

75

741_"

73

72 ......... _ .................................... ------ COOL SETPOINT

71 I _ // X_.,__ __ TEMPERATURE

70Ji - ....... _ .......................... --- HEAT SETPOINT

J

69

68

TIME

Fig. 48 -- Economizer Temperature

Control Example

4O

HEATING. UNIT WITH ECONOMISER2, PREMIERLINK

CONTROL AND A ROOM SENSOR -- Every 40 seconds

the controller will calculate the required heat stages (maximum

of 3) to maintain supply-air temperature (SAT) if the following

qu_flifying conditions ale met:

• Indoor fan has been on for at least 30 seconds.

• COOL mode is not active.

• OCCUPIED, TEMRCOMPENSATED START or HEAT

mode is active.

• SAT reading is available.

• Fire shutdown mode is not active.

If all of the above conditions are met, the number of heat

stages is c_dculated; otherwise file required number of heat

stages will be set to 0.

If the PremierLink controller determines that heat stages are

required, the economizer damper will be moved to minimum

position if occupied and closed if unoccupied.

Staging should be as follows:

If Heating PID STAGES=2

• HEAT STAGES=I (50% capacity) will energize HSI

• HEAT STAGES=2 (100% capacity) will energize HS2

If Heating PID STAGES=3 and AUXOUT = HS3

• HEAT STAGES=I (33% capacity) will energize HSI

• HEAT STAGES=2 (66% capacity) will energize HS2

• HEAT STAGES=3 (100% capacity) will energize HS3

In order to prevent short cycling, the unit is locked into the

Heating mode for at least 10 minutes when HS 1 is deenergizedi

When HSI is energized the induced-&aft motor is then

energized and the burner ignition sequence begins. On units

equipped for two stages of heat, when additional heat is need-

ed, HS2 is energized and the high-fire solenoid on the main gas

valve (MGV) is energized. When the space condition is satis-

fied and HSI is deenergized file IFM stops after a 45-second

time-off delay unless in the occupied mode. The fan will mn

continuously in the occupied mode as required by natiomfl

energy and fresh _fir standards.

UNITS WITH HUMIDI-MIZER TM ADAPTIVE DEHU-

MIDIFICATION SYSTEM

Normal Design Cooling Operation -- When the rooftop op-

erates under the normal sequence of operation, the compressors

will cycle to maintain indoor conditions. See Fig. 49.

The Humidi-MiZer a&tptive dehumidification system in-

cludes a factory-installed Motormastel@ low ambient control

to keep the head and suction pressure high, allowing normal

design cooling mode operation down to 0°E

Subcooling Mode -- When subcooling mode is initiated, this

will energize (close) file liquid line solenoid valve (LLSV)

forcing the hot liquid refiigemnt to enter into the subcooling

coil (see Fig. 50).

As the hot liquid refrigerant passes through the subcooling/

reheat dehumidification coil, it is exposed to the cold supply

airflow coming through the evaporator coil. The liquid is

runlet subcooled to a temperature approaching the evaporator

leaving-air temperature. The liquid then enters a thermostatic

expansion valve (TXV) where the liquid drops to a lower pres-

sure. The TXV does not have a pressure drop great enough to

change the liquid to a 2-phase fluid, so the liquid then enters

the Acutrol TM device at the evaporator coil.

The liquid entel_ file evaporator coil at a temperature lower

than in standard cooling operation. This lower temperature in-

creases the latent capacity of the rooftop unit. The refrigerant

passes through the evaporator and is turned into a vapol: Tile

air passing over the evaporator coil will become colder than

during normal operation. However. as this same air passes over

the subcooling coil, it will be slightly warmed, parti_flly reheat-

ing the air.

/

Fig. 49 -- Humidi-MiZer Normal

Design Cooling Operation

Fig. 50 -- Humidi-MiZer Subcooling

Mode Operation

Subcooling mode operates only when the outside air

temperature is winmet than 40 E A factory-installed tempera-

ture switch located in the condenser section will lock out sub-

cooling mode when the outside temperature is cooler than 40 IF.

The scroll compressors are equipped with crankcase heaters

to provide protection for the compressors due to the additional

refrigerant charge required by the subcoolin_reheat coil.

When in subcooling mode, there is a slight decrease in

system total gross capacity (5% less), a lower gross sensible

capacity (20% less), and a greatly increased latent capacity (up

to 40% more).

Hot Gas Reheat Mode -- When the humidity levels in the

space require humidity control, a hot gas solenoid valve (spe-

cific to hot gas reheat mode only) will open to bypass a portion

of hot gas lefiigerant mound the condenser coil (see Fig. 51).

This hot gas will mix with liquid refrigerant leaving file con-

denser coil and flow to the subcoolin_reheat dehumidification

coil. Now the conditioned air coming off the evaporator will be

cooled and dehumidified, but will be warmed to neutral condi-

tions (72 F to 75 F) by the subcooling/reheat dehumidification

coil.

41

Theneteffectoftherooftopwheninhotgasreheatmodeis

toprovidenearly_dllatentcapacitylemovalfiomthespace

whensensibleloadsdiminish(whenoutdoortemperatmecon-

ditionsaremoderate).Wheninhotgasreheatmode,fileunit

willoperatetoprovidemostlylatentcapacityandextremely

lowsensibleheatratiocapability.

Similartothesubcoolingmodeofoperation,hotgasreheat

modeoperatesonlywhentheoutsideairtemperatureiswanner

than40E Belowthistemperature,afactoryinst_flledoutside

airtemperatureswitchwilllockoutthismodeofoperation.

SeeTable32fortheHumidi-Mizera&tptivedehumidifica-

tionsystemsequenceofoperation.

LPS j

Fig. 51 -- Humidi-Mizer TM Hot Gas

Reheat Mode Operation

SERVICE

When servicing unit, shut off all electrical power to unit

and inst',_l lockout tag to avoid shock hazard or injury from

rotating parts.

Cleaning -- Inspect unit interior at the beginning of heat-

ing and cooling season and as operating conditions requile.

EVAPORATOR CO[L

1. Turn unit power off. tag disconnect. Remove evaporator

coil access panel.

2. [f economizer or two-position dmnper is installed, re-

move economizer by disconnecting Molex plug and

removing mounting screws.

3. Slide filters out of unit.

4. Clean coil using a commercial coil cleaner or dishwasher

detergent in a pressurized spray canister. Wash both sides

of coil and flush with clean watel: For best results,

back-flush towmd return-air section to remove foreign

material. Flush condensate pan after completion.

5. Reinst_dl economizer and filters.

6. Reconnect wiring.

7. Replace access panels.

CONDENSER COIL--Inspect coil monthly. Clean con-

denser coil annually, and as required by location and outdoor

air conditions.

One-Row Coil -- Wash coil with commercial coil cleanel: It

is not necessary to remove top panel.

2-Row Coils

Clean coil as follows:

1. Turn offunit powel: tag disconnect.

2. Remove top panel screws on condenser end of unit.

3. Remove condenser coil corner post. See Fig. 52. To hold

top panel open, place coil corner post between top panel

and center post. See Fig. 53.

4. Remove screws securing coil to complessor plate and

compressor access panel.

5. Remove fastener holding coil sections together at return

end of condenser coil. Carefully separate the outer coil

section 3 to 4 in. from the inner coil section. See Fig. 54.

6. Use a water hose or other suitable equipment to flush

down between the 2 coil sections to remove dirt and

debris. Clean the outer surfaces with a stiff brush in the

norm_d mannel:

7. Secure inner and outer coil rows together with a field-

supplied fastenel:

8. Reposition the outer coil section and remove the coil cor-

ner post fiom between the top panel and center post.

Reinstall the coil corner post and replace all screws.

CONDENSATE DRAIN- Check and clean each year at

start of cooling season. In wintel: protect against freeze-up.

FILTERS -- Clean or replace at start of each heating and cool-

ing season, or more often if operating conditions require it. Re-

placement filters must be stone dimensions as origimd filters.

OUTDOOR-AIR INLET SCREENS -- Clean screen with

steam or hot water and a mild detergent. Do not use disposable

filters in place of screen.

Table 32 -- Humidi-Mizer Adaptive Dehumidification System Sequence of Operation and

System Response -- Single Compressor Unit (48HJ004-007)

THERMOSTAT INPUT ECONOMIZER FUNCTION 48HJ UNIT OPERATION

H OAT. < Economizer Set Point IEconomizer Comp. 1 I Subcooling Mode IHot Gas Reheat Mode

Off Normal Operation

On No Off

On No Off

On Yes On

On Yes On

On No Off

OAT

Y1 Y2

On On

On Off

On On

On Off

Off Off

LEGEND

-- OutdoorAirTemperature

On Yes No

On Yes No

On Yes No

On No Yes

On No Yes

NOTE: On a thermostat call for W1, all cooling and dehumidification will

be off.

42

Lubrication

COMPRESSORS -- Each compressor is chmged with correct

amount of oil at the factory.

FAN MOTOR BEARINGS -- Fan motor bemings are of the

permanently lubricated type. No further lubrication is required.

No lubrication of condenser-fan or evaporator-fan motors is

required.

Condenser-Fan Adjustment (Fig. 55) -- Shut off

unit power supply. Relnove condenser-fan assembly (grille,

motol: motor cover, and fan) and loosen fan hub setscrews.

Adjust fan height as shown in Fig. 55. Tighten setsclews and

replace condenser-fan assembly.

EconoMi$er IV Adjustment-- Refer to Optional

EconoMi$er IV and EconoMi$er2 section on page 18.

Evaporator Fan Belt Inspection -- Check con-

dition of evaporator belt or tension during heating and cooling

inspections or as conditions lequile. Replace belt or adjust as

necessary.

High-Pressure Switch -- The high-pressure switch

contains a Schrader core depressor, and is located on the com-

pressor hot gas line. This switch opens at 428 psig and closes at

320 psig. No adjustments are necessary.

Loss-of-Charge Switch -- The loss-of-charge switch

contains a Schrader core depressor, and is located on the com-

pressor liquid line. This switch opens at 7 psig and closes at

22 psig. No adjustments me necessary.

Freeze-Stat -- _n_e freeze-stat is a bimetal temperature-

sensing switch that is located on the "hair-pin" end of the

evaporator coil. The switch protects the evaporator coil from

fleeze-up due to lack of airflow. The switch opens at 30 F and

closes at 45 E No adjustments are necessary.

Refrigerant Charge--Amount of refrigerant charge is

listed on unit namepkite (also refer to Table 1). Refer to HVAC

Servicing Procedures literature available at your local distribu-

tor and the following procedures.

Unit panels must be in place when unit is operating during

chm'ging procedure. Unit must operate a minimum of 10 min-

utes before checking or adjusting refrigerant charge.

An accurate superheat, themlocouple-type or thermistor-

type thermometer, and a gage manifold are required when us-

ing the supeflleat charging method for evaluating the unit

chage. Do not use menuiw or small dia/-_'pe thermometers

be_ztu.w they am not adequaW _br this 0)')e qf measurement.

NO CHARGE- Use standard evacuating techniques. After

evacuating system to 500 microns, weigh in the specified

mnount of refrigerant. (Refer to Table 1 and unit information

plate.)

LOW CHARGE COOLING -- Using Cooling Charging

Ch;uts, Fig. 56-59, vary refrigerant until the conditions of the

chmls are met. Note the charging charts are different from type

normally used. Chmls are based on charging the units to the

correct superheat for the various operating conditions. Accu-

rate pressure gage and temperature sensing device are required.

Connect the pressure gage to the service port on the suction

line. Mount the temperature sensing device on the suction line

and insulate it so that outdoor ambient temperature does not

affect the reading. Indoor-air cfm must be within the normal

operating range of the unit.

COIL CORNER CENTER BAFFLE TOP PANEL

POST

COMPRESSOR

ACCESS

PANEL CONDENSER COIL

Fig. 53 -- Propping Up Top Panel

TOP VIEW

PANEL

ENTER BAFFLE

CONDENSER

COIL

INNERCOIL

TOP REMOVE

PANEL SCREWS

\

REMOVE REMOVE

SCREWS

CONDENSER CONTROL POST

CORNER POST

OUTER

COILSECTION

102 mm

(4") MAX

/CLEAN

HAIRPIN END

Fig. 54 -- Separating Coil Sections

COILCENTER

POST

ACCESS CONDENSER REMOVE COIL

PANEL COIL CORNER POST

Fig. 52 -- Cleaning Condenser Coil

REMOVE

SCREWS UNIT 48HJ FAN HEIGHT-- "A" (in.)

004-006 and 007 (208/230 V) 2.75

007 (460 and 575 V) 3.50

Fig. 55- Condenser-Fan Adjustment

43

HUMIDI-MIZER TM SYSTEM CHARGING -- The system

charge for units wifll the Humidi-MiZer a&tptive dehumidifi-

cation system is greater than that of the standard unit _flone.

The charge for units with this option is indicated on the unit

nmneplate &awing. Also lefer to Fig. 60-63. To charge

systems using the Humidi-MiZer a&tptive dehumidification

system, fully evacuate, recoven and recharge the system to the

nmneplate specified charge level. To check or adjust refrigerant

chalge on systems using the Humidi-MiZer adaptive dehumid-

ification system, charge per Fig. 60-63.

NOTE: When using the charging chin-Is, it is important that

only the subcooling/reheat dehumidification coil liquid line

solenoid valve be energized. The subcooling/reheat dehumidi-

fication coil liquid line solenoid valve MUST be energized to

use the charging charts and the outdoor motor speed controller

jumpered to run the fan at full speed.

The chin-Is reference a liquid pressure (psig) and tempera-

ture at a point between the condenser coil and the subcooling/

reheat dehumidification coil. A tap is provided on the unit to

measure liquid pressure entering the subcooling/reheat dehu-

midification coil.

IMPORTANT: The subcooling mode charging ch_u-ts

(Fig. 60-63) me to be used ONLY with units having the

Humidi-MiZer adaptive dehumidification system. IN) NOT

use stan&Lrd chm'ge (Fig. 56-59) for units with Humidi-

MiZer system, and DO NOT use Fig. 60-63 for standmd

units.

75[

68_

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SUCTION LINE TEMPERATURE (*F)

I I I

4 10 16 211 _7

SUCTION LINE TEMPERATURE ('C)

Fig. 56 -- Cooling Charging Chart,

Standard 48HJ004

312

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IIIIIIII

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_621 90 -- 125 52

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80

SUCTION LINE TEMPERATURE ('F)

I

SUCTION LINE TEMPERATURE ('C)

Fig. 58 -- Cooling Charging Chart,

Standard 48HJ006

SUCTION LINE TEMPERATURE (*F)

,CTiONLIRETEMPERATURE

Fig. 57 -- Cooling Charging Chart,

Standard 48HJ005

758 110

68_ 100

,

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48: N?O

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ill

34._ g50

Ul

27f 40

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70

SUCTION LINE TEM_RATURE ('F)

l _ 1_ 116 211

_CTIOM LINE TENPERAT_E OC)

ii Ii

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5 ,

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IIIII

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Fig. 59- Cooling Charging Chart,

Standard 48HJ007

44

TO USE COOLING CHARGING CHART, STANDARD

UNIT--Take the outdoor ambient temperature trod mad

the suction pressure gage. Refer to ch_uts to detennine what

suction temperature should be. If suction temperature is high,

add refrigerant. If suction temperature is low. carefully recover

some of file charge. Recheck the suction pressure as charge is

adjusted.

Exmnple (Fig. 58):

Outdoor Temperature ............................... 75 F

Suction Pressure ................................ 70 psig

Suction Temperature should be ....................... 48 F

(Suction temperature may vtu'y _+5 ° E)

If a charging device is used, temperature and pressure read-

ings must be accomplished using the charging charts.

TO USE COOLING CHARGING CHARTS, UNITS WITH

HUMIDI-MIZER TM ADAPTIVE DEHUMIDIFICATION

SYSTEM--Refer to charts (Fig. 60-63) to determine the

proper leaving condenser pressure and temperature.

Exmnple (Fig. 60):

Leaving Condenser Pressure ..................... 250 psig

Leaving Condenser Temperature ................... 105 F

NOTE: When using the charging charts, it is important that

only the subcooling/reheat dehumidification coil liquid line

solenoid valve be energized. The subcooling/reheat dehumidi-

fication coil liquid line solenoid valve MUST be energized to

use the charging charts and the outdoor motor speed controller

jumpered to run the fan at full speed.

CAIN N CHARGING CHART

3TON - 60HZ

(APPI ICABLE ONLY WHEN CO!l 15IN SUBCOOLING'P_30E)

OUTOOORFAN MUST_ OPERATIN6

LI_UI_ PRESSUR_L_AVING CO_DENS_R(PSIG)

NOTE: When using the charging charts, it is important that only the subcoolin( _reheat

dehumidification coil liquid line solenoid valve be energized. The subcooling/reheat dehu-

midification coil liquid line solenoid valve MUST be energized to use the charging charts

and the outdoor motor speed controller jumpered to run the fan at full speed.

Fig. 60 -- Cooling Charging Chart, 48HJ004 with

Optional Humidi-MiZer Adaptive Dehumidification

System

CODLIN8 MODE CHARSINt'3 CHART

4 TON 50HZ

(APPLICABLE ONLY WHEN COIL IS IN 5UBOOOLING MODE)

OUTOOORFAN MUSTBE OPERATING

SD mo 1so _ 2_ _o _o 4_

LIgtllD PRESSURELEAVIN6 CONDENSER(PSIG)

680LIN6 _ C_IIR6Itl6 CHART

5 tON GOHZ

(APPL ICABLE ONLY WHEN COIL IS IN SUBCOOLiNG MODE )

_o i_ 1so 2oo 2so _oo 3so 4oo

Lt_UID PRESSURELEAVING CONOE_SER_SIS)

NOTE: When using the charging charts, it is important that only the subcooling/reheat

dehumidification coil liquid line solenoid valve be energized. The subcooling/reheat dehu-

midification coil liquid line solenoid valve MUST be energized to use the charging charts

and the outdoor motor speed controller jumpered to run the fan at full speed.

Fig. 62 -- Cooling Charging Chart, 48HJ006 with

Optional Humidi-MiZer Adaptive Dehumidification

System

COOLING _CHkR61_ CHi_T

6 TON 60HZ

(APPLICABLE ONLY WHEN COIL ISIN SUBCOOLING MODE )

oumooRFANMUSTaE OPERATING

4Do

NOTE: When using the charging charts, it is important that only the subcooling/reheat

dehumidification coil liquid line solenoid valve be energized. The subcooling/reheat dehu-

midgication coil liquid line solenoid valve MUST be energized to use the charging charts

and the outdoor motor speed controller jumpered to run the fan at full speed.

Fig. 61 -- Cooling Charging Chart, 48HJ005 with

Optional Humidi-MiZer Adaptive Dehumidification

System

NOTE: When using the charging charts, it is important that only the subcooling/reheat

dehumidification coil liquid line solenoid valve be energized. The subcoofing/reheat dehu-

midgication coil liquid line solenoid valve MUST be energized to use the charging charts

and the outdoor motor speed controller jumpered to run the fan at full speed.

Fig. 63 -- Cooling Charging Chart, 48HJ007 with

Optional Humidi-MiZer Adaptive Dehumidification

System

45

Flue Gas Passageways -- To inspect the flue collec-

tor box and upper areas of the heat exchanger:

1. Remove the combustion blower wheel and motor assem-

bly according to directions in Combustion-Air Blower

section below.

2. Remove the 3 screws holding the blower housing to the

flue coveg

3. Remove the flue cover to inspect the heat exchangel:

4. Clean all surfaces as required using a wire blush.

Combustion-Air Blower-- Clean periodically to en-

sure proper airflow and heating eft]ciency. Inspect blower

wheel every fall and periodically during heating season. For the

fil.st heating season, inspect blower wheel bimonthly to deter-

mine proper cleaning frequency.

To inspect blower wheel, remove draft hood and screen.

Shine a flashlight into opening to inspect wheel. If cleaning is

required, remove motor and wheel as follows:

1. Slide burner access panel out.

2. Remove the 5 screws that altach induced-draft motor

assembly to the vestibule covel:

3. Slide the motor and blower wheel assembly out of the

blower housing. The blower wheel can be cleaned at this

point. If additional cleaning is required, continue with

Steps 4 and 5.

4. To remove blower from the motor shaft, remove

2 setscrews.

5. To remove motor, remove the 4 screws that hold the

motor to mounting plate. Remove the motor cooling fan

by removing one setscrew. Then remove nuts that hold

motor to mounting plate.

6. To reinstall, reverse the procedure outlined above.

Limit Switch- Remove blower access panel (Fig. 7).

Limit switch is located on the fan deck.

Burner Ignition -- Unit is equipped with a direct spark

ignition 100% lockout system. Integrated Gas Unit Controller

(IGC) is located in the control box (Fig. 12). A single LED on

the [GC provides a visual display of operational or sequentkd

problems when the power supply is uninterrupted. The LED

can be observed through the viewport. When a break in power

occurs, the IGC will be reset (resulting in a loss of fault history)

and the evaporator fan on/off times delay will be reset. Dnring

servicing, refer to the label on the control box cover or Table 33

for an explanation of LED error code descriptions.

If lockout occurs, unit may be reset by interrupting power

supply to unit forat least 5 seconds.

Table 33-- LED Error Code Description*

LED INDICATION ERROR CODE DESCRIPTION

ON Normal Operation

OFF Hardware Failure

1Flasht Evaporator Fan On/Off Delay Modified

2 Flashes Limit Switch Fault

3 Flashes Flame Sense Fault

4 Flashes 4 Consecutive Limit Switch Faults

5 Flashes Ignition Lockout Fault

6 Flashes Induced-Draft Motor Fault

7 Flashes Rollout Switch Fault

8 Flashes Internal Control Fault

9 Flashes Software Lockout

LEGEND

LED-- Light-Emitting Diode

*A 3-second pause exists between LED error code flashes. If more than one

error code exists, all applicable codes will be displayed in numerical

sequence.

]-Indicates a code that is not an error. The unit will continue to operate when

this code is displayed,

IMPORTANT: Refer to Troubleshooting Tables 34-38 for additional _

information. I

Main Burners -- At the beginning of each heating sea-

son, inspect for deterioration or blockage due to corrosion or

other causes. Observe the main burner flames and adjust, if

necessary.

When servicing gas train, do not hit or plug orifice spuds.

REMOVAL AND REPLACEMENT OF GAS TRAIN

(See Fig. 64 and 65)

1. Shut offmanual gas valve.

2. Shut off power to unit, tag disconnect.

3. Remove compressor access panel.

4. Slide out burner compartment side panel.

5. Disconnect gas piping at unit gas valve.

6. Remove wires connected to gas valve. Mark each wire.

7. Remove induced-draft motol, ignitor, and sensor wires at

the Integrated Gas Unit Controller (IGC).

8. Remove the 2 screws that attach the burner rack to the

vestibule plate.

9. Remove the gas valve bracket.

10. Slide the burner tray out of the unit (Fig. 65).

11. To reinstall, reverse the procedure outlined above.

INDUCED- ROLLOUT

DRAFT SWITCH

MOTOR

PLATE

SECTION

DRAFT

MOTOR

EXHAUST

- VESTIBULE

PLATE

"BLOWER

HOUSING

PRESSURE "GAS

TAP VALVE

Fig. 64 -- Burner Section Details

GAS

VALVE

S MANIFOLD PRESSURE TAP

f-_ _ F¸

BURNERS

Fig. 65 -- Burner Tray Details

46

CLEANING AND ADJUSTMENT

1. Remove burner rack from unit as described above.

2. Inspect burners and, if dirty, remove burners from rack.

3. Using a soft blush, clean burners and cross-over port as

required.

4. Adjust spark gap. See Fig. 66.

5. Reinst_dl burners on rack.

6. Reinst_dl burner rock as described above.

Replacement Parts -- A complete list of replacement

parts may be obtained froln any Carrier distributor upon re-

quest. Refer to Fig. 67 for a typical unit wiring schelnatic.

SEEDETAIL"(3"

/

/

SEEDETAIL"E"

LOW HEAT

48HJE/H004, 48HJD/G005-007- 72,000 BTUH INPUT

48HJM004, 48HJL005,006 -- 60,000 BTUH INPUT

L

2

Lt" \

./

MEDIUM AND HIGH HEAT

48HJE/H005-007, 48HJF/K004 -- 115,000 BTUH INPUT

48HJF/K005-007 -- 150,000 BTUH INPUT

48HJM005,006; 48HJN004 -- 90,000 BTUH INPUT

48HJN005,006- 120,000 BTUH INPUT

SPARK GAP

.120/.141 IN. (3.05/3.56 mm) SPARK GAP MUST BE POSITIONED TO

IGNITE ON FIRST TRY. (PLACE

SPARK GAP WITHIN BURNER

CIRCUMFERENCE AS SHOWN)

DETAIL *C*

Fig. 66 -- Spark Gap Adjustment

"F

\ L

SEE DETAIL _"

,yN. (4.60 ram)

DETAIL "E"

47

SCHEHATIC

208/2303 BO

SEE NOTE *3 _

EQUP GND

i i GRN/YELI_

CLO

PL6 R

FOR STD

UNIT PL6

--<_l-

Y

ECONOMI*ERI_

--PNK RED

I

ONNECTIOI

BOARD

.YEL*

.BLU.

-BLK-

--BRN.

--RED°

--GRA.

--pNKI

o iovoc/420MA CONTROLLER

J CONNECTIONFOR ECONOMIZER

FACTORYOR FIELD

L INSTALLED

O@

COMPOIENTARRANGEMENT

NOTES:

1, If any of the original wire furnished must be replaced, it must

be replaced with type 90 C wire or its equivalent.

2, Three phase motors are protected under primary single

phasing conditions.

3, Use copper conductors only.

4, TRAN is wired for 230 v unit. If unit is to be run with 208 v

power supply, disconnect BLK wire from 230 v tap (ORN)

and connect to 208 v tap (RED). Insulate end of 230 v tap.

LEGEND

C -- Contactor, Compressor OFM -- Outdoor (Condenser) Fan Motor

CAP -- Capacitor OLR -- Overload Relay O Splice

CLO -- Compressor Lockout P -- Plug

COMP -- Compressor Motor PL -- Plug Assembly _ Splice (Marked)

EQUIP -- Equipment QT -- Quadruple Terminal

FPT -- Freeze Up Protection Thermostat RS -- Rollout Switch Factory Wiring

FU -- Fuse SAT -- Supply Air Temperature Sensor

GND -- Ground TRAN -- Transformer Field Control Wiring

HPS -- High-Pressure Switch

HS -- Hall-Effect Sensor Field Splice _ Field Power Wiring

I-- Ignitor ----- Accessory or Optional Wiring

IDM -- Induced-Draft Motor _ Marked Wire

IFC -- Indoor Fan Contactor _ To indicate common potential only;

IFM -- Indoor Fan Motor _ Terminal (Marked) not to represent wiring.

IGC -- Integrated Gas Unit Controller

LPS -- Low-Pressure Switch O Terminal (Unmarked)

LS -- Limit Switch

MGV -- Main Gas Valve Terminal Block

Fig. 67 -- Typical Wiring Schematic and Component Arrangement (208/230-3-60 Shown)

48

TROUBLESHOOTING

Unit Troubleshooting -- Refer to Tables 34-38 for unit

troubleshooting details.

Table 34 -- LED Error Code Service Analysis

SYMPTOM CAUSE REMEDY

Hardware Failure. Loss of power to control module (IGC). Check 5 amp fuse on IGC, power to unit, 24-v circuit breaker, and

(LED OFF) transformer. Units without a 24-v circuit breaker have an internal

overload in the 24-v transformer. If the overload trips, allow

10 minutes for automatic reset.

Fan ON/OFF Delay Modified High limit switch opens during heat Ensure unit is fired on rate and temperature rise is correct.

(LED/FLASH) exchanger warm-up period before fan-on

delay expires.

Limit switch opens within three minutes Ensure units' external static pressure is within application guidelines.

after blower-oft delay timing in Heating mode

Limit Switch Fault. High temperature limit switch is open. Check the operation of the indoor (evaporator) fan motor.

(LED 2 Flashes) Ensure that the supply-air temperature rise is in accordance with

the range on the unit nameplate.

Flame Sense Fault. The IGC sensed flame that should not be Reset unit. If problem persists, replace control board.

(LED 3 Flashes) )resent.

4 Consecutive Limit Inadequate airflow to unit. Check operation of indoor (evaporator) fan motor and that supply-air

Switch Faults. temperature rise agrees with range on unit nameplate information.

(LED 4 Flashes)

Ignition Lockout. Unit unsuccessfully attempted ignition for Check ignitor and flame sensor electrode spacing, gaps, etc.

(LED 5 Flashes) 15 minutes. Ensure that flame sense and ignition wires are properly

terminated. Verify that unit is obtaining proper amount of gas.

Induced-Draft Motor Fault. IGC does not sense that induced-draft Check for proper voltage. If motor is operating, check the

(LED 6 Flashes) motor is operating, speed sensor plug/IGC Terminal J2 connection. Proper

connection: PIN 1-- White, PIN 2 -- Red, PIN 3-- Black.

Rollout Switch Fault. Rollout switch has opened. Rollout switch will automatically reset, but IGC will continue to

(LED 7 Flashes) lock out unit. Check gas valve operation. Ensure that induced-

draft blower wheel is properly secured to motor shaft.

Reset unit at unit disconnect.

Internal Control Fault. Microprocessor has sensed an error in the If error code is not cleared by resetting unit power, replace the IGC.

(LED 8 Flashes) software or hardware.

Temporary Software Electrical interference is impeding the IGC Reset 24-v to control board or turn thermostat off and then on. Fault

Lockout software, will automatically reset itself in one hour.

(LED 9 Flashes)

If the IGC must be replaced, be sure to ground yourself to dissi-

pate any electrical charge that may be present before handling

new control board. The IGC is sensitive to static electricity and

may be damaged if the necessary precautions are not taken.

IMPORTANT: Refer to heating troubleshooting for additional I

heating section troubleshooting information. I

LEGEND

IGC -- Integrated Gas Unit Controller

LED -- Light-Emitting Diode

49

PROBLEM

Burners Will Not

Ignite.

Table 35 -- Heating Service Analysis

CAUSE

Misaligned spark electrodes.

No gas at main burners.

Water ingas line.

No power to furnace.

No 24 v power supply to control circuit.

Miswired or loose connections.

Burned-out heat anticipator in thermostat.

Broken thermostat wires.

Inadequate Heating, Dirty air filter.

Gas input to unit too low.

Unit undersized for application.

Restricted airflow.

Blower speed too low.

Limit switch cycles main burners.

Too much outdoor air.

Poor Flame

Characteristics. Incomplete combustion (lack of

combustion air) results in:

Aldehyde odors, CO (carbon monoxide),

sooting flame, or floating flame.

Burners Will Not Unit is locked into Heating mode for a

Turn Off. one minute minimum.

Table 36 -- Humidi-MiZer TM Adaptive Dehumidification System Subcooling Mode Service Analysis

REMEDY

Check flame ignition and sensor electrode positioning. Adjust as needed.

Check gas line for air purge as necessary. After purging gas line of air, allow gas

to dissipate for at least 5 minutes before attempting to relight unit.

Check gas valve.

Drain water and install drip leg to trap water.

Check power supply, fuses, wiring, and circuit breaker.

Check transformer. Transformers with internal overcurrent protection require a

cool-down period before resetting. Check 24-v circuit breaker; reset if necessary.

Check all wiring and wirenut connections.

Replace thermostat.

Run continuity check. Replace wires, if necessary.

Clean or replace filter as necessary.

Check gas pressure at manifold. Clock gas meter for input, if too low, increase

manifold pressure or replace with correct orifices.

Replace with proper unit or add additional unit.

Clean filter, replace filter, or remove any restrictions.

Use high speed tap, increase fan speed, or install optional blower, as suitable for

individual units, Adjust pulley.

Check rotation of blower, thermostat heat anticipator settings, and temperature

rise of unit. Adjust as needed.

Adjust minimum position.

Check economizer operation.

Check all screws around flue outlets and burner compartment. Tighten as nec-

essary.

Cracked heat exchanger.

Overtired unit -- reduce input, change orifices, or adjust gas line or manifold

)ressure.

Check vent for restriction. Clean as necessary.

Check orifice to burner alignment.

Wait until mandatory one-minute time period has elapsed or reset power to unit.

PROBLEM

Subcooling Mode (Liquid Reheat)

Will Not Energize.

Low System Capacity,

CAUSE

No power to control transformer from

evaporator-fan motor.

No power from control transformer to liquid line

solenoid valve.

Liquid line solenoid valve will not operate.

Liquid line solenoid valve will not open.

Low refrigerant charge or frosted evaporator coil.

Loss of Compressor Superheat Thermostatic expansion valve (TXV).

Conditions with Subcooling/Beheat

Dehumidification Coil Energized.

Table 37 -- Humidi-MiZer TM Adaptive Dehumidification System Hot Gas Reheat Mode Service Analysis

PROBLEM

Reheat Mode Will Not Energize.

REMEDY

Check power source and evaporator-fan relay. Ensure all

wire connections are tight.

1. Fuse open; check fuse. Ensure continuity of wiring.

2. Low-pressure switch open. Cycle unit off and allow low-

pressure switch to reset. Replace switch if it will not

close.

3. Transformer bad; check transformer.

1. Solenoid coil defective; replace.

2. Solenoid valve stuck open; replace.

Valve is stuck closed; replace valve.

1. Check charge amount. Charge per Fig. 60-63.

2. Evaporator coil frosted; check and replace low-pres-

sure switch if necessary.

1. Check TXV bulb mounting, and secure tightly to suc-

tion line.

2. Replace TXV if stuck open or closed.

Loss of Compressor Superheat

Conditions with Subcooling/Reheat

Dehumidification Coil Energized,

Excessive Superheat,

CAUSE

No power to control transformer from

evaporator-fan motor.

No power from control transformer to hot gas

line solenoid valve

Hot gas line solenoid valve will not operate.

Low refrigerant charge or frosted evaporator coil.

Thermostatic expansion valve (TXV).

Liquid line solenoid valve will not operate.

Hot gas line solenoid valve will not close.

REMEDY

Check power source and evaporator-fan relay. Ensure all

wire connections are tight.

1. Fuse open; check fuse. Ensure continuity of wiring.

2. Low-pressure switch open. Cycle unit off and allow low-

pressure switch to reset. Replace switch if it will not

close.

3. Transformer bad; check transformer.

1. Solenoid coil defective; replace.

2. Solenoid valve stuck closed; replace.

1. Check charge amount. Charge per Fig. 60-63.

2. Evaporator coil frosted; check and replace low-pres-

sure switch if necessary.

1. Check TXV bulb mounting, and secure tightly to suc-

tion line.

2. Replace TXV if stuck open or closed.

Valve is stuck, replace valve.

Valve is stuck; replace valve.

50

Table 38 -- Cooling Service Analysis

PROBLEM

Compressor and Condenser Fan

Will Not Start.

Compressor Will Not Start

But Condenser Fan Runs.

Compressor Cycles (Other Than

Normally Satisfying Thermostat).

Compressor Operates Continuously.

Excessive Head Pressure.

Head Pressure Too Low.

Excessive Suction Pressure.

Suction Pressure Too Low.

Evaporator Fan Will Not Shut Off.

CAUSE

Power failure.

Fuse blown or circuit breaker tripped.

Defective thermostat, contactor, trans-

former, or control relay.

Insufficient line voltage.

Incorrect or faulty wiring.

Thermostat setting too high.

Faulty wiring or loose connections in com-

pressor circuit.

Compressor motor burned out, seized, or

internal overload open.

Defective run/start capacitor, overload, start

relay.

One leg of 3-phase power dead.

Refrigerant overcharge or undercharge.

Defective compressor.

Insufficient line voltage.

Blocked condenser.

Defective run/start capacitor, overload, or

start relay.

Defective thermostat.

Faulty condenser-fan motor or capacitor.

Restriction in refrigerant system.

Dirty air filter.

Unit undersized for load.

Thermostat set too low.

Low refrigerant charge.

Leaking valves in compressor.

Air in system.

Condenser coil dirty or restricted.

Dirty air filter.

Dirty condenser coil.

Refrigerant overcharged.

Air in system.

Condenser air restricted or air short-cycling.

Low refrigerant charge.

Compressor valves leaking.

Restriction in liquid tube.

High heat load.

Compressor valves leaking.

Refrigerant overcharged.

Dirty air filter.

Low refrigerant charge.

Metering device or low side restricted.

Insufficient evaporator airflow.

Temperature too low in conditioned area.

Outdoor ambient below 25 E

Time off delay not finished.

REMEDY

Call power company.

Replace fuse or reset circuit breaker.

Replace component.

Determine cause and correct.

Check wiring diagram and rewire correctly.

Lower thermostat setting below room temperature.

Check wiring and repair or replace.

Determine cause. Replace compressor.

Determine cause and replace.

Replace fuse or reset circuit breaker. Determine

cause.

Recover refrigerant, evacuate system, and

recharge to nameplate.

Replace and determine cause.

Determine cause and correct.

Determine cause and correct.

Determine cause and replace.

Replace thermostat.

Replace.

Locate restriction and remove.

Replace filter.

Decrease load or increase unit size.

Reset thermostat.

Locate leak, repair, and recharge.

Replace compressor.

Recover refrigerant, evacuate system, and

recharge.

Clean coil or remove restriction.

Replace filter.

Clean coil.

Recover excess refrigerant.

Recover refrigerant, evacuate system, and

recharge.

Determine cause and correct.

Check for leaks, repair, and recharge.

Replace compressor.

Remove restriction.

Check for source and eliminate.

Replace compressor.

Recover excess refrigerant.

Replace filter.

Check for leaks, repair, and recharge.

Remove source of restriction.

Increase air quantity. Check filter and replace if

necessary.

Reset thermostat.

Install low-ambient kit.

Wait for 30-second off delay.

5!

EconoMiSer IV Troubleshooting -- See Table 39

for EconoMi$er IV logic.

A functional view of the EconoMi$er is shown in Fig. 68.

Typical settings, sensor ranges, and jumper positions tue

also shown. An EconoMi$er IV simulator program is

available fiom Ctmier to help with EconoMi$er IV muning

and troubleshooting.

ECONOMI$ER IV PREPARATION -- This procedure is

used to prepare the EconoMi$er IV for troubleshooting. No

troubleshooting or testing is done by performing the following

procedme.

NOTE: This procedure requires a 9-v battely, 1.2 kilo-ohm

resistol: and a 5.6 kilo-ohm resistor which are not supplied

with the EconoMi$er IV.

IMPORTANT: Be sure to record the positions of all poten- ]

tiometers before starting troubleshooting. 1

1. Disconnect power at TR and TRI. All LEDs should be

off. Exhaust fan contacts should be open.

2. Disconnect device at P and PI.

3. Jumper P to PI.

4. Disconnect wires at T and TI. Place 5.6 kilo-ohm resistor

across T and TI.

5. Jumper TR to 1.

6. Jumper TR to N.

7. If connected, remove sensor from terminals So and +.

Connect 1.2 kilo-ohm 4074EJM checkout resistor across

terminals So and +.

8. Put 620-ohm resistor across terminals SR and +.

9. Set minimum position, DCV set point, and exhaust

potentiometers fully CCW (counterclockwise).

10. Set DCV maximum position potentiometer fully CW

(clockwise).

11. Set enthalpy potentiometer to D.

12. Apply power (24 vac) to terminals TR and TRI.

DIFFERENTIAL ENTHALPY-- To check differential

enthalpy:

1. Make sure EconoMiSer IV preparation procedure has

been performed.

2. Place 620-ohm resistor across So and +.

3. Place 1.2 kilo-ohm resistor across SR and +. The Free

Cool LED should be lit.

4. Remove 620-ohm resistor across So and +. The Free

Cool LED should turn off.

5. Return EconoMiSer IV settings and wiring to normal

after completing troubleshooting.

SINGLE ENTHALPY -- To check single enthalpy:

1. Make sure EconoMiSer IV preparation procedure has

been performed.

2. Set the enthalpy potentiometer to A (fully CCW). The

Free Cool LED should be lit.

3. Set the enth_dpy potentiometer to D (fully CW). The Free

Cool LED should turn off.

4. Return EconoMiSer IV settings and wiring to normal

after completing troubleshooting.

DCV (DEMAND CONTROLLED VENTILATION) AND

POWER EXHAUST -- To check DCV and Power Exhaust:

1. Make sure EconoMiSer IV preparation procedure has

been performed.

2. Ensure terminals AQ and AQI _ue open. The LED for

both DCV and Exhaust should be off. The actuator

should be lhlly closed.

3. Connect a 9-v battery to AQ (positive node) and AQl

(negative node). The LED for both DCV and Exhaust

should turn on. The actuator should chive to between 90

and 95% open.

4. Turn the Exhaust potentiometer CW until the Exhaust

LED turns off. The LED should turn off when the

potentiometer is approximately 90%. The actuator should

remain in position.

5. Turn the DCV set point potentiometer CW until the DCV

LED turns off. The DCV LED should turn off when the

potentiometer is approximately 9-v. The actuator should

drive fully closed.

6. Turn the DCV and Exhaust potentiometers CCW until

the Exhaust LED turns on. The exhaust contacts will

close 30 to 120 seconds after the Exhaust LED turns on.

7. Return EconoMi$er IV settings and wiring to normal

after completing troubleshooting.

DCV MINIMUM AND MAXIMUM POSITION -- To check

the DCV minimum and maximum position:

1. Make sure EconoMiSer IV prep_uation procedure has

been performed.

2. Connect a 9-v battery to AQ (positive node) and AQI

(negative node). The DCV LED should turn on. The

actuator should chive to between 90 and 95% open.

3. Turn the DCV Maximum Position potentiometer to mid-

point. The actuator should drive to between 20 and 80%

open.

4. Turn the DCV Maximum Position potentiometer to lhlly

CCW. The actuator should drive fully closed.

5. Turn the Minimum Position potentiometer to midpoint.

The actuator should chive to between 20 and 80% open.

6. Turn the Minimum Position Potentiometer lhlly CW. The

actuator should drive fully open.

7. Remove the jumper from TR and N. The actuator should

drive fully closed.

8. Return EconoMiSer IV settings and wiring to norm_d

after completing troubleshooting.

SUPPLY-AIR INPUT -- To check supply-air input:

1. Make sure EconoMi$er IV prepmation procedure has

been performed.

2. Set the Enthalpy potentiometer to A. The Free Cool LED

turns on. The actuator should drive to between 20 and

80% open.

3. Remove the 5.6 kilo-ohm lesistor and jumper T to TI.

The actuator should chive lhlly open.

4. Remove the jumper across T and TI. The actuator should

drive fully closed.

5. Return EconoMiSer IV settings and wiring to norm;d

after completing troubleshooting.

ECONOMISER IV TROUBLESHOOTING COMPLE-

TION -- This procedure is used to return the EconoMiSer IV

to operation. No troubleshooting or testing is done by perform-

ing the following procedure.

1. Disconnect power at TR and TRI.

2. Set enthalpy potentiometer to previous setting.

3. Set DCV maximum position potentiometer to previous

setting.

4. Set minimum position, DCV set point, and exhaust

potentiometers to previous settings.

5. Remove 620-ohm resistor from terminals SR and +.

6. Remove 1.2 kilo-ohm checkout resistor from terminals

So and +. If used, reconnect sensor from terminals So and

+.

52

7. Remove jumper flom TR to N.

8. Remove jumper fiom TR to 1.

9. Remove 5.6 kilo-ohm resistor from T and TI. Reconnect

wiles tit T and TI.

l 0. Remove jumper fiom P to Pl. Reconnect device a P and

PI.

11. Apply power (24 vac) to terminals TR and TRI.

Table 39 -- EconoMi$er IV Input/Output Logic

Demand Control

Ventilation (DCV)

Below set

(DCV LED Off)

Above set

(DCV LED On)

INPUTS

Enthalpy* Compressor

Y1 Y2 Stage Stage

Outdoor Return 1 2

High Low On On On On

(Free Cooling LED Off) On Off On Off

Off Off Off Off

Low High On On On Off

(Free Cooling LED On) On Off Off Off

Off Off Off Off

High Low On On On On

(Free Cooling LED Off) On Off On Off

Off Off Off Off

Low High On On On Off

(Free Cooling LED On) On Off Off Off

Off Off Off Off

*For single enthalpy control, the module compares outdoor

enthalpy to the ABCD set point.

1-Power at N terminal determines Occupied/Unoccupied setting:

24 vac (Occupied), no power (Unoccupied).

**Modulation is based on the supply-air sensor signal.

1-1-Modulation is based on the DCV signal.

OUTPUTS

N Terminalt

Occupied Unoccupied

Damper

Minimum position Closed

Modulating** (between rain.

3osition and full-open)

Minimum position

Modulating1-1- (between rain.

3osition and DCV maximum)

Modulating***

Modulating** (between

closed and full-open)

Closed

Modulating1-1- (between

closed and DCV

maximum)

Modulating1-1-1-

***Modulation is based on the greater of DCV and supply-air sen-

sor signals, between minimum position and either maximum

position (DCV) or fully open (supply-air signal).

I-I-I-Modulation is based on the greater of DCV and supply-air sen-

sor signals, between closed and either maximum position (DCV)

or fully open (supply-air signal).

Fig. 68 -- EconoMi$er IV Functional View

53

INDEX

Access panels 19 Filter

Altitude compensation 38 Cleaning 42

Barometric flow capacity 21 Installation 19

Burner ignition 46 Size 9

Burner rack 46 Flue gas passageways 46

Burner section 46 Flue hood .5,7

Burner spark gap 47 Freeze protection thermostat 9,43

Carrier Comfort Network 15 Gas connection 9

ChaEzing chart, ret_igerant 44,45 Gas input 9

Clearance 6Gas piping .5,Z 37

CO2 sensor Gas pressure 1, 9

Configuration 25 Heat anticipator settings Z 9

Settings 23,25 Heat exchanger 9

Combustion blower wheel 46 High flow valves 37

Compressor High pressure switch 9, 4.?

Lubrication 43 Horizontal units 1, 2

Mounting 37 Humidistat 13

Rotation 37 Humidi-MiZeradaptive dehumidification

Condensate drain system 13,26,41,42,44, 4.5,50

Cleaning 42 Indoor-airquality (IAQ) sensor 15,23

Location 4Integrated gas controller 46

Condenser coil 8Error codes 46, 49

Cleaning 42 Leak test 37

Condenser fan 8Limit switch 46

Adjustment 43 Liquid propane 9

Control circuit Low pressure switch 9,43

Wiring 7Main burners 3&46

Wiring raceway 10 Manual outdoor air damper 13

Convenience outlet 15 Mounting

Demand control ventilation 24 Compressor 37

Dehunfidification 25 Unit 4

Dimensions 3, 6 Natural gas 9

Ductwork 2Novar controls 15

EconoMi$er2 11_ Operating limits 2

4to 20 mAcontrol 20 Operating sequence 39-42

Wiring 20 Cooling 39

EconoMi$er IV 18-25 EconoMi$er IV 39

Control mode 21 EconoMi$er2 39-41

Damper movement 24 Heating 39

Troubleshooting .52,53 Hunfidi-MiZer adaptive dehumidification

Wiring 20 system 41,42

Electrical connections 5 Outdoor air hood 14,1.5,19

Electrical data 11,12 Outdoor air inlet screens 9,3Z 42

Enthalpy changeover set points 23 Outdoor-air temperature sensor 15,21

Evaporator coil 8Physical data 8, 9

Cleaning 42 Power supply 5

Evaporator fan motor Wiring 10

Lubrication 43 PremierLink controls 15-17

Motor data 27 Pressure, drop

Performance 28-36 EconoMiSer IV 36

Pulley adjustment 2.5,26 EconoMiSer2 36

Pulley setting 8,26 Humidi-MiZer adaptive dehumidification

Speed 8system 26

Factory-installed options Pro-Start-Up 37

Convenience outlet 15 Pressure switches

EconoMiSer IV 18-25 High pressure 9

EconoMiSer2 18 Low pressure 9

Humidistat 13 Refrigerant

Humidi-MiZer TM dehumidification Charge 8, 43

system 14 Type 8

Manual outdoor air damper 13 Refrigerant selwice ports 37

Novar controls 15 Replacement parts 47

PremierLink TM controls 15-17

Return air filter 9, 37

Return-air temperature sensor

Rigging unit 4, 5

Roof curb

Assembly 1

Dimensions 3

Connector package 3

Leveling tolerances 4

Weight 8

Safety considerations 1

Safety relief 39

Service 42-48

Sel_.ice ports 37

Slab mount 2

Start-up 37-42

Start-up checklist (_'L-I

Supply-air temperature sensor

Thermostat 10

Troubleshooting 40-53

Ventilation 39

Weight

Comer 6

EconoMiSer IV 6, 8

Unit .5,6,8

Wiring

4 to 20 mA control 20

Differential enthalpy 18

Humidistat 14

EconoMiSer2 20

EconoMiSer IV 20

Power connections 10

PremierLink control 10, 17

Thermostat 10

Unit 48

22

1.5,21

Copyright 2005 Carrier Corporation

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

Catalog No. 04-53480013-01 Printed in U.S.A. Form 48HJ-33SI Pg 54 9-05 Replaces: 48HJ-29SI

I. PRELIMINARY INFORMATION

MODEL NO.:

DATE:

START-UP CHECKLIST

(Remove and Store in Job File)

SERIAL NO.:

TECHNICIAN:

II. PRE-START-UP (insert checkmark in box as each item is completed)

[] VERIFY THAT JOBSITE VOLTAGE AGREES WITH VOLTAGE LISTED ON RATING PLATE

[] VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT

[] REMOVE ALL SHIPPING HOLDDOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS

[] VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS

[] CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS

[] CHECK GAS PIPING FOR LEAKS

[] CHECK THAT RETURN (INDOOR) AIR FILTERS ARE CLEAN AND IN PLACE

[] VERIFY THAT UNIT INSTALLATION IS LEVEL

[] CHECK FAN WHEELS AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW TIGHTNESS

[] CHECK TO ENSURE THAT ELECTRICAL WIRING IS NOT IN CONTACT WITH REFRIGERANT LINES

OR SHARP METAL EDGES

[] CHECK PULLEY ALIGNMENT AND BELT TENSION PER INSTALLATION INSTRUCTIONS

III. START-UP

ELECTRICAL

SUPPLY VOLTAGE L 1-L2 L2-L3 L3-L 1

COMPRESSOR AMPS LI L2 L3

INDOOR-FAN AMPS LI L2 L3

TEMPERATURES

OUTDOOR-AIR TEMPERATURE

RETURN-AIR TEMPERATURE

COOLING SUPPLY AIR

GAS HEAT SUPPLY AIR

PRESSURES

GAS INLET PRESSURE

GAS MANIFOLD PRESSURE

REFRIGERANT SUCTION

REFRIGERANT DISCHARGE

DB

DB

DB

DB

IN. WG

IN. WG (HIGH FIRE)

PSIG

PSIG

WB

[] VERIFY REFRIGERANT CHARGE USING CHARGING TABLES

[] VERIFY THAT 3-PHASE SCROLL COMPRESSOR ROTATING IN CORRECT DIRECTION

Copyright 2005 Carrier Corporation

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

Book 1 14 Catalog No. 04-53480013-01 Printed in U.S,A. Form 48HJ-33SI Pg CL-1 9-05 Replaces: 48HJ-29SI

Tab 1a 16a

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