CARRIER Air Conditioner/heat Pump(outside Unit) Manual L0901378

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

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Page Count: 68

OMNIZONE TM

50BV020-064

Water-Cooled and Remote Air-Cooled

Indoor Self-Contained Systems and

Water-Cooled Heat Pumps

Installation, Start-Up and

Service Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS ..................... 1,2

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

MAJOR SYSTEM COMPONENTS ................. 2

Constant Volume (CV) Units ...................... 2

Variable Air Volume (VAV) Units .................. 2

INSTALLATION ................................ 3-30

Step 1 -- Complete Pre-lnstallation Checks ...... 3

• EXAMINE THE UNIT

• UNIT STORAGE

• MODULAR UNITS

Step 2 -- Rig and Place Unit ..................... 3

• REMOVE PACKAGING

• UNIT LOCATION

• UNIT PLACEMENT

• ACOUSTICAL CONSIDERATIONS

• ASSEMBLING MODULAR UNITS

Step a -- Install Ductwork ....................... 19

• DUCT STATICPRESSURE PROBE AND TUBING

(VAVOnly)

• DUCT HIGH-STATIC (DHS) LIMIT SWITCH (VAV Only)

Step 4- Make Piping Connections ............. 21

• CONDENSER WATERPIPING (Water-Cooled Only)

• EVAPORATOR CONDENSATE DRAIN

• HOT WATER HEATING COIL (Optional)

• WATERECONOMIZER (Optional)

• REMOTE REFRIGERANT PIPING

(Remote Air-Cooled Only)

Step 5 -- Complete Electrical Connections ...... 24

• POWER WIRING

• CONTROL WIRING (CV Only)

• REMOTE CONDENSER FAN CONTACTOR WIRING

• CONTROL WIRING (VAVOnly)

• SUPPLY AIR TEMPERATURE SENSOR (SAT)

• SMOKE DETECTOR/FIRE ALARM SHUTDOWN (FSD)

• ALARM (ALARM) AND WARNING (WARN) OUTPUTS

• REMOTE OCCUPANCY (ROCC)

• RETURN AIR TEMPERATURE SENSOR (RAS)

START-UP .................................... 30-48

General ......................................... 30

• CRANKCASE HEATERS

• CONFIRM THE INPUT POWER PHASE SEQUENCE

• INTERNAL WIRING

• RETURN-AIR FILTERS

• COMPRESSOR MOUNTING

• REFRIGERANT SERVICE PORTS

CV Unit Start-Up ................................ 31

• EVAPORATOR FAN

• COOLING

• HEATING (Heat Pump Units Only)

VAV Unit Start-Up ............................... 42

• PERFORM AUTOMATIC RUN TEST

• CHECK VFD

• POWER UP LID DISPLAY

Page

• LOG ON TO THE LID DISPLAY

• CHANGE THE DEFAULT PASSWORD

• SET THE CLOCK

• CONFIGURE SCHEDULES

• PROGRAM SET POINTS

• CHECK SYSTEM PARAMETERS

• DISPLAY ALARM HISTORY

• CONFIGURE THE CUSTOM PROGRAMMING

SELECTIONS

• SET CONTROLLER ADDRESS

•LOG OFF FROM THE CONTROLLER

Sequence of Operation (CV Only) ............... 47

• WATERECONOMIZER COOLING

Sequence of Operation (VAV Only) .............. 48

• SUPPLY FAN

• COMPRESSOR COOLING

• WATERECONOMIZER COOLING

• COOLING RESET

Diagnostic Features (CV Only) .................. 48

VAV Control and VFD Diagnostics ............... 48

SERVICE ........................................ 49

Compressor Rotation ........................... 49

Fan Motor Replacement ......................... 49

MAINTENANCE .............................. 4941

Cleaning Unit Exterior ........................... 49

Coil Cleaning .................................... 49

Inspection ....................................... 49

Air Filters ....................................... 49

Condensate Drains .............................. 49

Water-Cooled Condensers ...................... 49

• GRAVITY FLOW METHOD

• FORCED CIRCULATION METHOD

Fan Motor Lubrication ........................... 5O

Fan Bearing Lubrication ........................ 5O

Fan Sheaves .................................... 5O

• ALIGNMENT

Evaporator Fan Performance Adjustment ....... 51

• BELT TENSION ADJUSTMENT

Charging the System ............................ 51

• REMOTE AIR-COOLED UNITS

Compressor Oil ................................. 51

TROUBLESHOOTING ........................ 51-65

Forcing and Clearing an Input or Output

(VAV only) .................................... 54

START-UP CHECKLIST ................... CL-1, CL-2

SAFETY CONSIDERATIONS

Installing, starting up, and servicing air-conditioning

components and equipment can be dangerous. Only trained,

qualified installers and service mechanics should install, start-

up, and service this equipment.

When working on the equipment, observe precautions in

the literature and on tags, stickers, and labels attached to the

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

Catalog No. 04-53500001-01 Printed in U.S.A. Form 50BV-3SI Pg 1 10-08 Replaces: 50BV-2SI

equipment. Follow all safety codes. Wear safety glasses and

work gloves.

The 50BV units have removable access panels for easy

servicing. These panels allow access to controls, compressors,

condensers, VFD(s) (if applicable), evaporator motors, blow-

ers, belts, pulleys, and refrigeration components.

Before performing service or maintenance operations on

unit, turn off main power switch to unit and open all dis-

connects. More than one disconnect switch may be

required to deenergize this equipment. Electric shock haz-

ard can cause iniury or death.

Use care in handling, rigging, and setting bulky equipment.

GENERAL

Omnizone TM 50BV indoor packaged units are very flexible

for a variety of applications. These self-contained units are

available as water-cooled or remote air-cooled air conditioning

units. The 50BV units are available with either constant vol-

ume (CV) or variable air volume (VAV) controls. In addition,

the 50BV unit is available as a water-cooled heat pump. Final-

ly, Omnizone 50BV units are available in two cabinet styles.

Nominal 18 through 30-ton units are constructed in a single-

piece, unpainted galvanized cabinet. Nominal 30 through

60-ton units are available as modular units, and can be taken

apart for easier installation. Modular units are built using an un-

painted, galvanized steel cabinet with steel framework, and can

be easily disassembled without breaking the refrigerant lines.

See Table 1 for a model number reference by application.

Each unit contains multiple scroll compressors piped in

separate refrigerant circuits. Each water-cooled circuit includes

a coaxial (tube-in-tube) condenser, TXV (thermostatic expan-

sion valve), individual evaporator coils, and all interconnecting

piping. Water-cooled units are shipped fully charged with

refrigerant. Remote air-cooled units are shipped with a nitrogen

holding charge.

Each unit is equipped with one or two forward-curved cen-

trifugal blowers, to ensure quiet air delivery to the conditioned

space. Constant volume units operate at a single, adjustable fan

speed and provide zone temperature control using a standard

colrnnercial thermostat. For VAV applications, the unit is sup-

plied with a variable frequency drive(s) (VFD) that automati-

cally adjusts blower speed to maintain a constant, adjustable

duct static pressure. Compressors are automatically staged to

provide supply air temperature control (VAV applications) or

zone temperature control using a two-stage colmnercial ther-

mostat (CV applications).

MAJOR SYSTEM COMPONENTS

Constant Volume (CV) Units

MAIN CONTROL BOARD (MCB) -- The main control

board for the 50BVC, E, Q, T, U, and V units provides both

controls and diagnostics including:

• Condensate Overflow Protection prevents unit operation in

the event that the drain pan clogs (optional sensors

required).

• Random Start provides a progralmnable start with a range

of 30 to 60 seconds.

• Anti-short Cycle Thner provides a 5-minute delay to pre-

vent compressor short cycling.

• Low Pressure Bypass Thner bypasses the low-pressure

switch for 90 seconds to avoid nuisance trips during cold

start-up.

• High Pressure Switch Delay is a one-second delay that pre-

vents nuisance trips at start-up.

• Brownout/Surge/Power Interruption Protection is a

20-second moving scale that works in coNunction with the

random start timer to delay unit start when a nuisance lock-

out would otherwise have occurred. This allows the water

pumps to restart and establish water flow.

• Alarm Output contacts provide remote fault indication.

• Test/Service Pin is a jumper that reduces all time delay

settings to 6 seconds during troubleshooting or operation

verification.

• Reset occurs after a 5-minute delay when a fault condition

occurs. When the timer expires, the unit will restart. If the

same condition occurs a second time, the unit will be locked

out.

• Lockout Reset requires that the unit power be cycled at the

unit controller via either the thermostat or unit disconnect.

NOTE: The refrigerant circuits on dual compressor models

are completely independent. If either stage has a fault condi-

tion the remaining stage will continue to operate without

interruption. A freeze (optional sensor required) or condensate

overflow lockout will shut down both refrigerant circuits.

• LEDs are provided for diagnostic purposes.

Variable Air Volume (VAV) Units -- The 50BVJ,K,

W, and X units come equipped with a Carrier 6400 Comfort

Controller and a VFD. Refer to the 50BV, XJ Controls, Opera-

tion and Troubleshooting manual for details.

NOTE: The VAV units utilize face split coils and should not

be operated below 50% of nominal airflow to prevent coil

freezing.

Table 1 -- Model Number Reference By Application Type

MODEL

50BVC

50BVE

50BVQ

50BVJ

50BVK

50BVT

50BVU

50BVV

50BVW

50BVX

LEGEND

TYPE* AVAILABLE CAPACITY CONSTRUCTION CONTROLS

Water-Cooled 18 to 30 nominal tons Single-piece CV

Remote Air-Cooled 18 to 30 nominal tons Single-piece CV

Water-Cooled Heat Pump 18 to 30 nominal tons Single-piece CV

Water-Cooled 18 to 30 nominal tons Single-piece VAV

Remote Air-Cooled 18 to 30 nominal tons Single-piece VAV

Water-Cooled 30 to 60 nominal tons Modular CV

Remote Air-Cooled 30 to 60 nominal tons Modular CV

Water-Cooled Heat Pump 30 to 60 nominal tons Modular CV

Water-Cooled 30 to 60 nominal tons Modular VAV

Remote Air-Cooled 30 to 60 nominal tons Modular VAV

CV -- Constant Volume

VAV -- Variable Air Volume

*All units are cooling only unless specified.

INSTALLATION

Omnizone TM 50BV units are intended for indoor installa-

tion only. Determine building alterations required to run piping,

wiring, and ductwork. Read all installation instructions before

installing the unit.

Step 1 EComplete Pre-lnstallation Checks

EXAMINE THE UNIT- Examine the unit for shipping

damage. File a claim with the transit company if damage is

found. Check the shipment for completeness. Verify that the

nameplate electrical requirements match the available power

supply.

UNIT STORAGE -- The 50BV units are designed and pack-

aged for indoor storage and use only. If the equipment is not

needed for ilrnnediate installation upon its arrival at the job site,

it should be left in its shipping carton and stored in a clean, dry

area. Units must only be stored or moved in the normal upright

position, as indicated by the "UP" arrows on each carton, at all

times. DO NOT STACK UNITS.

MODULAR UNITS -- The 50BVT,U,V,W,X units are shipped

in multiple sections for easy lnovement and installation. The

separate modules will pass through a standard 36-in. steel-

framed door or service elevator. Circuit integrity is maintained

because none of the refrigerant piping requires disconnection.

Water piping connections are made with the use of heavy-duty

bronze-bodied unions so no field welding or brazing is required.

See Table 2 for the number of sections per unit.

Table 2 -- Modular Unit Shipping Table

SECTIONS

Main Air Conditioning

Weight (Ib) (each)

Reheat Coil Option

Weight (Ib) (each)

Economizer/Filter

Filter Section Weight (Ib)

Economizer Weight (Ib)

Fan Section

Weight (Ib) (each)

Total Unit

Weight (Ib)

NUMBER OF SECTIONS

50BV_ U,_W,X

034 044 054 064

1 2 2 2

2100 1825 2200 2225

1 2 2 2

40 40 40 40

1 2 2 2

310 310 310 310

200 200 200 200

1 2 2 2

650 650 650 650

4 8 8 8

3300 5400 6150 6150

NOTE: Units ship with the main air conditioning, economizer/

filter, and, when selected, the reheat coil sections assembled

together. These can be easily disassembled, as required, in the

field. The fan section(s) always ships separately.

Step 2 ERig and Place Unit -- Use proper lifting

and handling practices to avoid damage to the unit. Move

modular units with a fork truck using the baserails provided, or

use spreader bars and lifting straps as shown in Fig. 1.

For single piece units, use spreader bars and rigging straps if

lifting with a crane to avoid damage to the unit. Otherwise,

move with a fork truck using the shipping pallet.

Refer to Fig. 2-14 for unit dhnensions.

Refer to Tables 3A and 3B for physical data.

REMOVE PACKAGING -- Remove all protective plastic,

remove and discard unit top cover protector, filter cover,

controller display protector, and water piping connection

packaging.

UNIT LOCATION--Locate the unit in an indoor area

that allows easy removal of the filters, access panels, and

accessories. Make certain enough space is available for service

personnel to perform maintenance or repairs. Provide sufficient

room to make all water, duct, and electrical connections. If the

unit is located in a small mechanical equipment room, make

sure adequate space is available for air to return freely to the

unit. These units are not approved for outdoor installations and

must be installed inside the structure. Do not locate in areas

that are subject to freezing.

UNIT PLACEMENT- Ensure that the floor is structurally

strong enough to support the weight of the equipment with

minimum deflection. A good, level floor is required for proper

unit operation and to ensure proper fit-up and aligmnent of all

bolt together and union coupled modules on modular units.

USE

SPREADER

BAR TO

PREVENT

DAMAGE

TO UNIT

4 X 4ABOVE

AND BELOW

RETURN DUCT

CONNECTIONS'

Fig. 1 -- Modular Unit Rigging

FRONT

30.00

[7621

FRONT RETURN TOP SUPPLY

TOP VIEW

WATER CONN.

CONDENSATE CONN.

FILTER QTY. & SIZE

NOTES:

50BV(C)(Q)(J)UNIT NOMINAL SIZE

020 024 028 034

14.75 I3751 14.75 [3751 14.75 [375} 15.00 [381[

8.50 [216] 8,75 [222] 8,75 [222] 9,00 [229]

2.75 I701 2.75 I701 2.75 1701 3.50 [891

40.00 [t016] 40.00 [1016] 40.00 [1016] 60.00 [1524]

20.00 I508; 20.00 I508; 20.00 I508; 30.00 I7621

38,00 I965; 38,00 I965; 38,00 1965; 58,00 I1473;

62.00 [1575] 66.50 [1689] 66.50 [1689] 86.50 [21971

4.00 ilor; 4.00 iI0! 4.00 i10_; 4.00 iI01i

18.75 [476] 18.75 [4761 18.75 [476} 18.76 [4761

2" FPT 2" FPT 2" FPT 2" FPT

1-1/4" FPT 1-1/4" FPT 1-1/4" FPT 1-1/4" FPT

(4) 20 x 34-1/2 x 1" (4) 20 x 34-1/2 x 1" (4) 20 x 34-1/2 x 1" (4) 30 x 34-1/2 x 1"

1 Dimensions in inches [mm].

2. VAV models (50BVJ) are rear return top supply only.

3. Compressor, controls, and condenser access are through front panels.

4. Field power connections are 1-3/4 inches. Control connections are 7/8 inches.

5. Optional blower orientation is selected in model number nomenclature as option 9 in FlOP section

(digits 15 and 16).

_ Shows recommended minimum service clearances.

4.00

_1021

B--

c--

0.00--

2.00

[51]

4.00

[102[--"-

4.50

1141

I34,00 34,00

[864} 1864}

ware,Oul _ _ r-

CONTROL BOX AND

CoPdensate Drain COMPRESSOR

ACCESS

I I

Water In j L._ll

-- 80.00

2032]

FRONT VIEW

ELECIRICAL

CONNECTIONS

--H

-- 0.00

1.75

_[44]

OPTIONAL _ _ STANDARD

BLOWER BLOWER

ORIENTATION ORiENTATiON

- !

) !

RIGHT SIDE VIEW

REAR RETURN, FRONT SUPPLY

_OTOR AND_

_ELT ACCESS

BOTHSIDES)

I I

-Jl

22.00

[58o1

I=:D

IAIR

7.OO

[_Td--"

LEFT SIDE VIEW FRONT VIEW

REAR RETURN TOP SUPPLY

4.50

[114]

I 34,00 34,00

I [B641 [0641

--_F-1 Fq

II t t

IUL

80.00

[2032}

REAR VIEW

OPTIONAL _ _ STANDARD

BLOWER BLOWER

ORIENTATION t ORE ArON

) i

[.EFT SIDE VEW

FRONT RETURN, REAR SUPPLY

L....

I MOTOR AND',_

IBELT ACCESS

J(BOTH SIDES)

t I I

ILL

RIGHT SIDE VIEW

I_:_>

IAle

REAR VIEW

Fig. 2 -- 50BVC,J,Q020-034 Dimensions

2.00

15]

FRONT

30.00

{:'621

4.00

[102]

21.00 [5331 --

17.00 [432] --

13.00 I330 --

8.501216] __

5.00 [127] __

0.00--

2.00

[51}

4.00

1102[--""

50BV(E)(K) UNIT NOMINAL SIZE

020 024 028 034

D 40.00 [1016] 40.00 [1016] 40.00 [1016] 60.00 [1524]

E 20.00 [508] 20.00 [508] 20.00 [508] 30.00 [762]

F 38.00 [965] 38.00 [965] 38.00 [965] 58.00 [1473]

G 62,00 [1575] 66,50 [1689] 66,50 [1689] 86,50 [2197]

H 4,00 [101] 4,00 [101] 4,00 [101] 4,00 [101]

J 18.75 [476] t8.75 [476] 18.75 [476] 18.70 [476]

CONDENSATE CONN. 1-1/4" FPT 1-1/4" FPT I-1/4" FPT 1-1/4" FPT

FILTER QTY. & SIZE (4) 20 x 34-1/2 x1" (4) 20 x 34-1/2 x l" (4) 20 x 34-1/2 x1" (4) 30 x 34-1/2 x1"

TOP VIEW

4.5o

[14]

34,00 34,00

[864] [864]

3isch_rge C_nn.#1 CONrROL BOXAND

3ondensa[e Drain COMPRESSOR

ACCESS

................J''l-iquid Conn.#1 U

00.00

[2032]

FRONT VIEW

FRONT RETURN, TOP SUPPLY

Es_ 3(;°°

TYP BOTH S [915t

NOTES:

1. Dimensions in inches [mm].

2. VAV models (50BVK) are rear return top supply only.

3. Compressor, controls, and condenser access are through front panels.

4. Field power connections are 1-3/4 inches, Control connections are 7/8 inches.

5. Discharge (hot gas) connections are 1-1/8 in. OD.

6. Liquid line connections are 7/8 in. OD.

7. Optional blower orientation is selected in model number nomenclature as

option 9 in FlOP section (digits 15 and 16).

RECOMMENDED CONDENSER MATCHES:

50BV020 _ one (1) 09DK020 (50/50 split each)

50BV024 _ one (1) 09DK024 (50/50 split each)

50BV028 _ one (1) 09DK028 (50/50 split each)

50BV034 _ one (1) 09DK034 (50/50 split each)

F"_7_ Shows recommended minimum service clearances.

"I_ ",,

CONNEC lIONS

-- H

-- 0.00

1.75

_[441

OPTIONAL STANDARD

BLOWER BLOWER

ORIENTATION _:_ _ ORIENTATION

32.00

[813]

RIGHT SIDE VIEW

REAR RETURN, FRONT SUPPLY

IOTORAND_

ACCESS

;OTHSLOES__)

--_r-

I I

22,00

15591

I_>

I AIR

7.00

[ 7_T--""

LEFT SIDE VIEW FRONT VIEW

2.00

[51]

_!_!

t 17.50

[445]

4.50

1114

i34,00 34,00[864] [864]

-7 r-'l

II I I

IUL

80.00

[2032]

REAR VIEW

REAR RETURN TOP SUPPLY

.........R> ........

BLOWER BLOWER

ORIENTATION ORIENTATION

_I"_°_°__ _

I ,, ,

32.00

LEFT SIDE VIEW

FRONT RETURN, REAR SUPPLY

L....

MOTOR A_ID'_.

IBEL ACCESS

J (BOTHSLOES)

-'i F-]

I I I

_Iu

-4 k--

RIGHT SIDE VIEW

7.00

[118}

It:l>

IAifi

2.00

REAR VIEW

Fig. 3 -- 50BVE,K020-034 Dimensions

69.50

SHIPPING SECTION

2,00

65.50

BLOWERSECTION

ACCESS

COMPRESSOR

ACCESS

REAR VIEW

RETURN AIR VIEW

54.

' LLIFTING SUPPORT RAIL

80,00

2.88

31.00

54.38

11 .oo!___

13._0 8,75

5,00

OWEI

CTIOI

ICESS

CESS

)

23.2!

_51.63

•--,'I _2.00

STANDARD

DISCHARGE

81.50

10.75

t t

9,88 --

_49.75

I I

EVAPORATOR

ACCESS

ELECTRICALBOX

ACCESS

EVAPORATOR

ACCESS

COMPRESSOR

ACCESS

FRONT VIEW

23.7!

18.75 I

1.50

NOTES:

1• Dimensions in inches.

2. All units are rear return airflow configuration•

3• Constant volume units are available with front or rear air supply.

4• VAV units (80BVW) are available with rear supply only.

8. Recommended minimum set'vice clearances are as follows:

. Front and rear-- 30 in. (762 mm)

• Left or right side -- 68 in• (1681 ram) for coil removal

c. Side opposite coil removal -- 20 in. (508 ram)

LEFT SIDE VIEW

BLABO,I_RGE IIBLOWEBII

IISECTI°NII

(Optional) ! ]_E

ECONO _C I . 0

L)I

EVAPORATOR

REHEAT

COIL (Optional) ' ' ' ' I

WATER IN

(ECONO COIL

OPTIONAD /_.O///_ --1.50

- q, q,

B t

LEFT SIDE VIEW

CONNECTIONS

A I WATER OUT I 2-I/2 in. FPT

B I WATER IN I 2-1/2 in. FPT

C CONDENSATE DRAIN 1-1/4 in• FPT

D ECONOMIZER DRAIN 1-1/4 in• FPT

REPLACEMENT FILTERS : EIGHT (8) AT 17 x 27 x 4 INCHES.

Fig. 4 -- 50BVT, V,W034 (High-Boy) Dimensions

69,50

SHIPPING SECTION

65.50

t t

Illlllllllllllllltlllllllllllllllllllllllllllll

Illllllllllllllllll]lllllllllllllllllllllllllll

COMPRESSOR

ACCESS

_ 2.00

LIFTING SUPPORT RAIL

REAR VIEW

RETURN AIR VIEW

54.38

2 88 --I I STANDARD

' | I_ DISCHARGE

| ' I

_ II -l.I,

i i iI ,i i

I II I _\

I II I /_ -% \

i/\ i

I I II U I I I I

II II fl II \ II

I I 11 11 I % --- /

I I II II I_*

I I II II I _ I

I I II II I"'--"

I I II II I t I SECTION

I I II II IIi

I I II II I \___ ACCESS

I I II II I

'_,=:.n.,, , , ..,

I I II II I

i I I . I EVAPORATOR

i t it ii i

I 1/, ,;d.. ACCESS 19-

.... ,DE._

15i00 1300 10

_2.00

_7- ELECTRICAL

3.75 _

LEFT SIDE VIEW

,.75

--22.75--

_23.75_

--22.75

18.75

-9.50

TOP DISCHARGE

TOP VIEW

FILTERACCESS-- r] [-i[]- "-1 /.........

I I II / 1 I_

ECONOCOIL(OPTIONAL)-- _ 1, , /#/'-.\

DRECTEXPANSONEVAPO_TORI I I !"/ : t " ;

Iiii !!i/ !-. L .... 7-

REHEAT COIL (OPTIONAL) I / I I _1 / I t_ _'I_ _ .... -

tH t-##, ,-t t 2Jl BLOWER

F,LTERACCESS--' ....... " S_Oo_'Os"

:::::::::::::::::::::::::'li.i i E_O_E°sAT°RE

WATEr,.I t--

(ECONO COIL_ j_ _ (_

OPT,ONAL,

D_ !Ok X

o_/

LEFT SIDE VIEW

FRONT

DISCHARGE

(OPTIONAL)

CONNECTIONS

AIWATER OUT I2-1/2 in. FPT

B I WATER IN I 2-1/2 in. FPT

C CONDENSATE DRAIN 1-1/4 in. FPT

D ECONOMIZER DRAIN 1-1/4 in. FPT

REPLACEMENT FILTERS : EIGHT (8) AT 17 x 27 x 4 INCHES.

NOTES:

1. Dimensions in inches.

2, All units are rear return airflow configuration.

3. Recommended minimum service clearances are as follows:

a, Front and rear-- 30 in. (762 ram)

b. Left or right side -- 65 in. (1651 ram) for coil removal

c. Side opposite coil removal -- 20 in. (608 ram)

18.75

- 9.88 9.88 -

49.75

PARTIAL VIEW OF

FRONT DISCHARGE

Fig. 5 -- 50BVT, V,W034 (Low-Boy) Dimensions

F1"50

23.7

69.50

SHIPPING SECTION

_2.00

I...... I

_ i BLOWER

SECTION

ACCESS

m m

IlllllillllliillllllllllllllllIIlllllllilllllll

Illlllillllllll!llllllllllllllllillllllillllliI

COMPRESSOR

ACCESS

69.50

SHIPPING SECTION

_4.00 2.00

BLOWER --

SECTION

ACCESS

m m

iIllllIllllllllllllilllllllllllllllllllllllllll

iIlllliillllillllllillllllllllllllIIlllllllllll

COMPRESSOR

ACCESS

i i i i

REAR VIEW

RETURN AIR VIEW

i[ i i i

--LIFTING SUPPORT RAIL

19.75 9.88

EVAPORATOR

ACCESS

ELECTRICAL BOX

ACCESS

EVAPORATOR

ACCESS

COMPRESSOR

ACCESS

EVAPORATOR

ACCESS

_LECTRICAL BOX

ACCESS

EVAPORATOR

ACCESS

COMPRESSOR

ACCESS

i iq__

FRONT VIEW

NOTES:

1. Dimensions in inches.

2, All units are rear return airflow configuration.

3. CV units are available with front or rear air supply.

4. VAV units (50BVW) are available with rear supply only.

5. Recommended minimum service clearances are as follows:

a, Front and rear-- 30 in. (762 mm)

b. Left and right sides -- 65 in. (1651 mm) for coil removal

54£

80.00

1.50

31.00

54.38

, 113.!°8.75

5.00

LEFT SIDE VIEW

5.50

23.75 REAR DISCHARGE

(OPTIONAL) !

3.19

FILTER ACCESS

ECONO COIL (OPTIONAL)

DIRECT EXPANSION

EVAPORATOR

REHEAT COIL (OPTIONAL)

WATER

(ECONO COIL

OPTIONAL)

3LOWER

_@ SECTION

ACCESS

V \PORATOR

_,(CESS

L E-

111

LEFT SIDE VIEW

CONNECTIONS

UNIT SIZE 044 054 064

A WATER OUT 2-1/2 in. FPT 3 in. FPT 3 in. FPT

B WATER IN 2-1/2 in. FPT 3 in. FPT 3 in. FPT

C CONDENSATE DRAIN 1-1/4 in. FPT 1-1/4 in. FPT 1-1/4 in. FPT

D ECONOMIZER DRAIN 1-1/4 in. FPT 1-1/4in. FPT 1-1/4 in. FPT

REPLACEMENT FILTERS : SIXTEEN (16) AT 17 x 27 x 4 INCHES

_2.00

STANDARD

DISCHARGE

81.50

10.75

ELECTRICAL

Fig. 6 -- 50BVT, V,W044-064 (High-Boy) Dimensions

69.50 69.50

SHIPPING SECTION SHIPPING SECTION

f--1

IllllllIiillllllllllltlllllllllIIlllllilllllIII

Illllllllllllllllllllllllllllllllllll]lllllllll

v.,.,_u l

F--l

IIIIllIIIlllllIiiiIIIIIIIIIIIIllIIIIIIIIIIIIII

IIIIlllilIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII]I

COMPRESSOR

ACCESS

COMPRESSOR

ACCESS

REAR VIEW

RETURN AIR VIEW

i t i 1.50

LLIFTING SUPPORT RAIL

2.88

26.94

F-

)

STANDARD

DISCHARGE

." I /., \

,iI _ i

,i*t

,i\, /

It'! _ BLOWER

,el II _ ) SECTION

II I "-" ACCESS

' EVAPORATOR

'ACCESS

.JL-J

--5.(

23.25

64.75

2.00

ELECTRICAL

LEFT SIDE VIEW

.75

-1 t

18.75

! 4`6

18.75

TOP DISCHARGE

TOP VIEW

NOTES:

1. Dimensions in inches

2, All units are rear return airflow configuration.

3. Recommended minimum service clearances are as follows:

a, Front and rear-- 30 in. (762 ram)

b, Left and right sides-- 65 in. (1651 ram) for coil removal

CONNECTIONS

UNIT SIZE 044 054 064

WATER OUT 2-1/2 in. FPT 3 in. FPT 3 in. FPT

B WATER IN 2-1/2 in. FPT 3 in. FPT 3 in. FPT

C CONDENSATE DRAIN 1-1/4 in. FPT 1-1/4in. FPT 1-1/4 in. FPT

D ECONOMIZER DRAIN 1-1/4 in. FPT 1-1/4in. FPT 1-1/4 in. FPT

REPLACEMENT FILTERS : SIXTEEN (16) AT 17 x 27 x 4 INCHES.

FILTER ACCESS--

ECONO COIL (OPTIONAL) --

DIRECT EXPANSION --

EVAPORATOR

REHEAT COIL (OPTIONAL) --

FILTER ACCESS--

ECONO COIL (OPTIONAL) --

DIRECT EXPANSION __

EVAPORATOR

REHEAT COIL (OPTIONAL) ....

:I F- -Ir-I

" I /

i l ,

.... _ ,)

i i ,! ',

''-I--i 4"

r'[. f-_ "---J

I _,__ BLOWERII I

II I SECTION

I{ {ACCESS

I I II I

' ' III

i i "*_IllI EVAPORATOR E

J[-- .JL-jII IACCESS

Water In

(ECONO COIL O_

OPTIONAL) 0 zo

D _ /

c- /x__

L_ AB

LEFT SIDE VIEW

FRONT DISCHARGE

(OPTIONAL)

-9.88 9.88 - ----I

4-9.75-- I

I-t 2_5I-|

18175 _

PARTIAL VIEW OF

FRONT DISCHARGE

[- 1.50

2335

Fig. 7 -- 50BVT, V,W044-064 (Low-Boy) Dimensions

69.50

SHIPPING SECTION

2.00

65.50

BLOWER

SECTION

ACCESS

54.75

REAR VIEW

RETURN AIR VIEW

9.88

L LIFTING SUPPORT RAIL

23,75

EVAPORATOR EVAPORATOR

ACCESS ACCESS

£LECTRICAL BOX

£LECTRICAL BOX COMPRESSOR

ACCESS ACCESS

i i

FRONT VIEW

1.50

i i__ t

NOTES:

1. Dimensions in inches.

2, All units are rear return airflow configuration.

3. Constant volume units are available with front or rear air supply.

4. VAV units (50BVX) are available with rear supply only.

5. Recommended condenser match is ONE (1) 09DK034 (50/60 split).

6. Use proper piping practice for remote refrigerant connections. Refer to

Carrier System Design Manual Part 3.

7. Recommended minimum service clearances are as follows:

a. Front and rear-- 30 in. (762 mm)

b. Left or right side -- 65 in. (1651 mm) for coil removal

c. Side opposite coil removal -- 20 in. (508 mm)

80.00

31,00

L___

13,!0 8.75

5.00

23,2. _

_51,63

54.38

£V _PORATOR

A( £ESS

_2,00

STANDARD

DISCHARGE

81.50

10.75

LEFT SIDE VIEW

5.50

REAR DISCHARGE

(Optional) !

3.19

FILTER ACCESS

ECONO COIL (Optional)

DIRECT EXPANSION

EVAPORATOR

REHEAT COIL (Optional)

WATER IN

(ECONO COIL

OPTIONAL)

BLOWER

%_ SECTION

ACCESS

1ATOR

IO _

IO-

111.00

CONNECTIONS

LEFT SIDE VIEW

AILIQUID LINE CIRCUIT 1 7/8 in. OD

B [ LIQUID LINE CIRCUIT 2 7/8 in. OD

C DISCHARGE LINE CIRCUIT 1 1-1/8 in. OD

D DISCHARGE LINE CIRCUIT 2 1-1/8 in. OD

E CONDENSATE DRAIN 1-1/4 in. FPT

F ECONOMIZER DRAIN 1-1/4 in. FPT

REPLACEMENT FILTERS : EIGHT (8) AT 17 x 27 x 4 INCHES.

- ELECTRICAL

1.50

Fig. 8 -- 50BVU,X034 (High-Boy) Dimensions

69.50

SHIPPING SECTION

65.50

i i

Illlllllllllllllllllllllllllllltlltl!llllllll

IlllllllllllllllllllllllllllllltlltlllIllllll

O B COMPRESSOR

O A ACCESS

2.00

[ -- 1.50 -j

•LIFTING SUPPORT RAIL

REAR VIEW

RETURN AIR VIEW

54.38

2.88

26!94

ooS

il r-

t t i

i i i

t t i

t i i

i i i

F'I _-

!! :

t i i

I I L_

_5.(

--23.2_

STANDARD

DISCHARGE

; \

,._}.-._ _'_-L_ BLOW ER

tV-'_ SECTION

k., z ACCESS

EVAPORATOR E

ACCESS

.J_-J

64.75

LEFT SIDE VIEW

2.00

r- ELECTRICAL

.75

-- 22.75

23.75

22.75 --

- 9.50

18.75

t 46

18.75

TOP DISCHARGE

TOP VIEW

CONNECTIONS

AILIQUID LINE CIRCUIT 1 7/8 in. OD

B J LIQUID LINE CIRCUIT 2 7/8 in. OD

C DISCHARGE LINE CIRCUIT 1 1-1/8 in. OD

D DISCHARGE LINE CIRCUIT 2 1-1/8 in. OD

E CONDENSATE DRAIN 1-1/4 in. FPT

F ECONOMIZER DRAIN 1-1/4 in. FPT

REPLACEMENT FILTERS : EIGHT (8) AT 17 x 27 x 4 INCHES.

NOTES:

1. Dimensions in inches.

2, All units are rear return airflow configuration.

3. Recommended condenser match is ONE (1) 09DK034 (50/50 split).

4. Use proper piping practice for remote refrigerant connections. Refer to

Carrier System Design Manual Part 3.

5. Recommended minimum service clearances are as follows:

a, Front and rear--30 in, (762 ram)

b. Left or right side -- 65 in. (1651 ram) for coil removal

c, Side opposite coil removal -- 20 in. (508 ram)

FILTER ACCESS -- |

ECONOCOIL(OPTIONAL)--

DIRECTEXPANSIONEVAPORATOR !

REHEATCOIL(OPTIONAL)

FILTERACCESS-- i

--t

ECONOCOIL(OPTIONAL)--

DIRECTEXPANSIONEVAPORATOR I

REHEATCOIL(OPTIONAL)

WATER IN

(ECONO COIL_

OPTIONAL) )

)

F---_ --'7'

E--/

II II I s-- ......

II II I /

11 II I t/\

ii ii i I t

I II I I _ J

BLOWERIIII I _ 4_

i SECTION

ACCESS

ACCESSII1Iii E

FRONT

DISCHARGE

(OPTIONAL)

LEFT SIDE VIEW

18.75

1__

- 9.88 9.88 - -

4.9.75 _ F 1.50

23.7

PARTIAL VIEW OF

FRONT DISCHARGE

Fig. 9 -- 50BVU,X034 (Low-Boy) Dimensions

69.50

SHIPPING SECTION

69.50

SHIPPING SECTION

_2.00

SLOWER SLOWER

SECTION SECTION

ACCESS ACCESS

Illllllllllllll!lll[ltllllllllllllllllllllllll

Illllllllllllll!llllllllllllllllllllllllllllll

O B COMPRESSOR

OA ACCESS

2.00

m m

--I

IIIIIII!IIIIIIIIIIIIIIIIIIIIIIIIIIEIIIIIIIIIIII

Illllll!lllllllllllllllllllllllllllllllilllllll

OB COMPRESSOR

OA ACCESS

i i i

REAR VIEW

RETURN AIR VIEW

i[ i i i

--LIFTING SUPPORT RAIL

2.88

31 .O0

54.38

13"!0 8.75

5.00

BLOWER

__SECTION

23.25

_51.63

_"_9.88

49.75

9.88 --

--49.75 --

I I

EVAPORATOR

ACCESS

ELECTRICAL BOX

ACCESS

EVAPORATOR

ACCESS

COMPRESSOR

ACCESS

EVAPORATOR

ACCESS

=LECTRICAL BOX

ACCESS

EVAPORATOR

ACCESS

COMPRESSOR

ACCESS

139.00

FRONT VIEW

NOTES:

1. Dimensions in inches.

2. All units are rear return airflow configuration.

3. CV units are available with front or rear air supply.

4. VAV units (50BVX) are available with rear supply only.

5. Use proper piping practice for remote refrigerant connections. Refer to

Carrier System Design Manual Part 3.

6. Recommended minimum service clearances are as follows:

a. Front and rear-- 30 in. (762 mm)

b. Left and right sides -- 65 in. (1651 mm) for coil removal

LEFT SIDE VIEW

23.75

5.50

3.19 J

FILTER ACCESS --

ECONO COIL (OPTIONAL) --

DIRECTEXPANSION

EVAPORATOR i

REHEAT COIL (OPTIONAL)

WATER IN

(ECONO COIL

OPTIONAL)

F--/

BLOWER

_ SECTION

ACCESS

_ATOR

IO-

IO_

LEFT SIDE VIEW

CONNECTIONS

_2.00

STANDARD

DISCHARGE

111.00

10.75

81.50

-- - ELECTRICAL

F1.50

UNIT SIZE 044 054 064

LIQUID LINE CIRCUIT 1_2 7/8 in. OD 7/8 in. OD 7/8 in. OD

B LIQUID LINE CIRCUIT 3 4 7/8 in. OD 7/8 in. OD 7/8 in. OD

C DISCHARGE LINE CIRCUIT 1_ 2 1-1/8 in. OD 1-1/8 in. OD 1-1/8 in. OD

D DISCHARGE LINE CIRCUIT 3 4 1-1/8 in. OD 1-1/8 in. OD 1-1/8 in. OD

E CONDENSATE DRAIN 1-1/4 in. FPT 1-1/4 in. FPT 1-1/4 in. FPT

F ECONOMIZER DRAIN 1-1/4 in. FPT 1-1/4 in. FPT 1-1/4 in. FPT

REPLACEMENT FILTERS : SIXTEEN (16) AT 17 x 27 x 4 INCHES.

Fig. 10 -- 50BVU,X044-064 (High-Boy) Dimensions

69.50 69.50

SHIPPING SECTION SHIPPING SECTION

2.00

[m I

IliilIIllillliillllilllllIlllI(liIllllIlllilI

Illlllltl!(llllllllIlllllllllIIllllIIlllIllll

0 B COMPRESSOR

OA ACCESS

REAR VIEW

--4.00 2.00

fro- l

IIiIIIiIIIIiIIIIIiiIIIIIIIIIiIIIIiiiIIiiIIIIiIl

IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII

3 B COMPRESSOR

3A ACCESS

8C /'$I 8(

26.94

LIFTING SUPPORT RAIL

13.00

RETURN AIR VIEW

STANDARD

DISCHARGEI

[_,

' -4 _ BLOWER

_ } SECTION

( ,( _J ACCESS

, I

[ IEVAPORATORE

(ACCESS

L-- JL--J

L_i

_5.C

23.25

LEFT SIDE VIEW

2.00

_T ELECTRICAL

.75

_22.75_ _ 46.00_

18.75 4-6

18.75

FILTER ACCESS--

ECONO COIL (OPTIONAL) -

DIRECT EXPANSION _

EVAPORATOR

REHEAT COIL (OPTIONAL) -

FILTER ACCESS--

ECONO COIL (OPTIONAL) -

DIRECT EXPANSION

EVAPORATOR

REHEAT COIL (OPTIONAL) -

Water In

(ECONO

OPTIONAL)

F--J

-I r- .,r-.,, _.....

i i ii /f-

11 / f',,

t ) II

i I II i \, ' ....

''-l.H .. 7

:I [ II,-_240BLOWER

_. II I -- SECTIOi

,,ill ACCESS

"I EVAPORATOR

mm-_l ACCESS

.JL-J

E--/

FRONT DISCHARGE

(OPTIONAL)

TOP DISCHARGE

TOP VIEW

NOTES:

1 Dimensions in inches

2 All units are rear return airflow configuration.

3. Use proper piping practice for remote refrigerant connections. Refer to

Carrier System Design Manual Part 3.

4, Recommended minimum service clearances are as follows:

a. Front and rear-- 30 in. (762 ram)

b. Left and right sides -- 65 in. (1651 ram) for coil removal

CONNECTIONS

UNIT SIZE 044 054 064

LIQUID LINE CIRCUIT 1,2 7/8 in. OD 7/8 in. OD 7/8 in. OD

B LIQUID LINE CIRCUIT 3, 4 7/8 in. OD 7/8 in. OD 7/8 in. OD

C DISCHARGE LINE CIRCUIT 1, 2 1-1/8 in. OD 1-1/8 in. OD 1-1/8 in. OD

D DISCHARGE LINE CIRCUIT 3, 4 1-1/8 in. OD 1-1/8 in. OD 1-1/8 in. OD

E CONDENSATE DRAIN 1-1/4 in. FPT 1-1/4 in. FPT 1-1/4 in. FPT

F ECONOMIZER DRAIN 1-1/4 in. FPT 1-1/4 in. FPT 1-1/4 in. FPT

REPLACEMENT FILTERS : SIXTEEN (16) AT 17 x 27 x 4 INCHES.

q--

18.75

Fig. 11 -- 50BVU,X044-064 (Low-Boy) Dimensions

LEFT SIDE VIEW

-9.88 9.88 -

_49.75_

PARTIAL VIEW OF

FRONT DISCHARGE

F1.50

23.;!

NOTES:

1 Dimensions in inches [mm]

2. Refer to base unit certified drawing for additional unit dimensions service

clearance, and alternate airflow configurations.

FRONT RETURN, TOP SUPPLY

SHOWN

5.00

AIR

0.75

[t9]

ECONODRAIN

AIR

MOTOR AND BLOWER

_,CCESS (BOTH SIDES)

RIGHT SIDE VIEW

4.00

[402I

50BV(C)(Q)(J) UNIT NOMINAL SIZE

020 024 028

A 28.00 [711] 32.00 [813] 32.00 [813]

B 31.00 [787.4] 35.00 [889] 35.00 [889]

C 17.50 [445] 18.75 [476] 18.75 [476]

D 62.00 [1575] 66.50 [1689] 66.50 [1689]

WATER CONN. 2" FPT 2" FPT 2" FPT

CONDENSATE CONN. 1-1/4" FPT 1-1/4" FPT 1-1/4" FPT

FILTERQTY.&SlZE (4) 17x34-1/2x1" (4) 17x34-1/2xl" (4) 17x34-1/2xl"

WATE R IN --_

80.00

[2032]

10.00

t l :,-R, i_

I I' '1 I'

_1 I 32.00 I

[9_3]

FILTER RACK TOP VIEW

92.13

[2340]

3.25

(_C Nq ROL BOX AND

COMPRESSOR ACCESS

JLJ

FRONT VIEW

LEFT SIDE VIEW

Fig. 12 -- 50BVO,J,Q020-028 with Optienal Waterside Ecenemizer Dimensiens

AIR

FRONT RETURN, TOP SUPPLY

SHOWN

6.00

ECONO DRAIN

AIR

MOTORANDBELT

ACCESS(BOTHSIDES',

RIGHT SIDE VIEW

32.00 1.50

[8 31 Psi

[343]

LEFT SIDE VIEW

)

NOTES:

1. Dimensions in inches [mm].

2. Refer to base unit certified drawing for additional unit dimensions service

clearances and alternate airflow configurations.

50BV(C)(Q)(J) 034

DESCRIPTION SIZE

WATER CONN. 2" FPT

CONDENSATE CONN, 1-1/4" FPT

FILTER QTY. & SIZE (4) 27" x 34-1/2" x 1"

_q II

I I I

I 32,00 1

[813]

FILTER RACK

TOP VIEW

[2032]

[89]

FRONT VIEW

3.50

[89]

5.00

I_271

Fig. 13 -- 50BVC,J,Q034 with Optional Waterside Economizer Dimensions

5050

310

FAN

8] 5/80 _

6850

Size 034 Units

HAIN AIR

CDNDITIDNIN@ _

S CTIDN

Size 044-064 Units

FILLERS/

ECBNDHIZER

3ECFIBN

50BVT, U,V,W,X UNIT

MAIN AIR CONDITIONING SECTION (EACH)

NUMBER OF SECTIONS

SECTION WEIGHT

REHEAT COIL OPTION

FILTER/ECONOMIZER SECTION (EACH)

NUMBER OF SECTIONS

FILTER SECTION

ECONOMIZER OPTION

FAN SECTION (EACH)

NUMBER OF SECTIONS

FAN SECTION

TOTAL UNIT

NUMBER OF SECTIONS

UNIT WITH OPTIONS

*High-boy/low-boy.

Shipping Weights (Ib)

HIGH-BOY UNIT LOW-BOY UNIT

034 044 054 064 034 044 054 064

1 2 2 2 1 2

1450 1175 1550 1575 2100 1825

40 40 40 40 40 40

1 2 2 2 1 2

310 310 310 310 310 310

200 200 200 200 200 200

2 2

2200 2225

40 40

I1 2 2 2

650 650 650 650

2 2

310 310

200 200

INCLUDED IN

AIR CONDITIONING SECTION

I 3 6 6 6 6% i 4 4

2650 4750 5500 5550 2 0 4 0 5500 5550

Fig. 14 -- Modular Shipping Weights -- 50BVT, U,V,W,X

Table 3A -- Physical Data -- 50BVC,E,J,K,Q

UNIT 50BVC,E,J,K,Q

NOMINAL CAPACITY (Tons)

OPERATING WEIGHT (Ib)

50BVC,Q...50BVJ

50BVE...50BVK

COMPRESSOR

Quantity

Number of Refrigerant Circuits

Oil (ounces) Ckt 1...Ckt 2

REFRIGERANT TYPE

Expansion Device

Operating Charge (Ib) Ckt 1...Ckt 2

CONDENSER (50BVC,Q,J only)

Quantity of Manifolded Circuits

Nominal Flow Rate (GPM)

Water Flow Range (GPM)

Max. Water Working Pressure (PSIG)

Max. Refrig. Working Pressure (PSIG)

Min. Entering Water Temp. (°F)

Max. Entering Water Temp. (°F)

Waterside Volume (gal)

EVAPORATOR COIL

Rows... Fins/in.

Total Face Area (sq ft)

EVAPORATOR FAN

Quantity...Size

Type Drive

Nominal CFM

Std Motor Qty...HP...Frame Size

AIt 1 Motor Qty...HP...Frame Size

AIt 2 Motor Qty...HP...Frame Size

AIt 3 Motor Qty...HP...Frame Size

Motor Nominal RPM (1.5, 2, 3, HP)

Motor Nominal RPM (5 HP)

Fan Drive RPM Range

Std Fan Drive (1.5, 2, 3 HP)

Std Fan Drive (5 HP)

Med Static Fan Drive (1.5, 2, 3 HP)

Motor Bearing Type

Maximum Allowable RPM

Motor Pulley Pitch Diameter

Std Fan Drive (1.5, 2, 3 HP)

Std Fan Drive (5 HP)

Med Static Fan Drive (1.5, 2, 3 HP)

Motor Shaft Diameter (in.) (1.5, 2 HP)

Motor Shaft Diameter (in.) (3, 5 HP)

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

Std Fan Drive (1.5, 2 HP)

Std Fan Drive (3 HP)

Std Fan Drive (5 HP)

Med Static Fan Drive (1.5, 2 HP)

Med Static Fan Drive (3 HP)

Pulley Center Line Distance (in.)

Speed Change Per Full Turn of

Moveable Pulley Flange (RPM)

Std Fan Drive (1.5, 2, 3 HP)

Std Fan Drive (5 HP)

Med Static Fan Drive (1.5, 2, 3 HP)

Fan Shaft Diameter (in.)

HIGH PRESSURE SWITCHES (PSIG)

Cutout

Reset (Auto)

LOW PRESSURE SWITCHES (PSIG)

Cutout

Reset (Auto)

REMOTE REFRIGERANT CONNECTIONS

(50BVE,K Only)

Discharge (Hot Gas) Connection (in.) Qty...Size

Liquid Connection (in.) Qty._Size

RETURN AIR FILTERS

Quantity...Size (in.)

LEGEND

TXV -- Thermostatic Expansion Valve

020 024 028 034

18 20 25 30

1192,,,1227 1378,,,1413 1428,,,1473 1680,,,1725

1110...1145 1290,,, 1325 1320,,,1365 1520,,, 1565

Copeland Scroll

2 2 2 2

85,,,85 110,,,110 110,,,110 140,,,140

R-22 or R-410A

TXV I TXV I TXV I TXV8.1 ...8.1 9.1 ...9.1 9.1 ...9.1 18.0...18.0

Tube-in-Tube Coaxial

36-72

400

450 (600*)

110

3.6

40-80

400

450 (600*)

110

4.0

50-1 O0

4OO

450 (600*)

110

5.0

60-120

4OO

450 (600*)

110

6.0

3,,,14 3,,,14 3,,,14 3,,,14

18.1 18.1 18.1 22.0

2...15x15

Belt

7200

2...1.5...56

2...2...56H

2...3...56HZ

2...5...56HZ

1725

3450

753-952

967-1290

872-1071

Ball

1300

3.7-4.7

2.9-3.9

4.3-5.3

5/8

7/8

2...15x15

Belt

8000

2...2...56H

2...3...56HZ

2...5...56HZ

1725

3450

753-952

967-1290

872-1071

Ball

1300

3.7-4.7

2.9-3.9

4.3-5.3

7/8

1...B...39

2...B...39

2...BX...42

1...B...40

2...B...40

10.1 ...10.9

1...B...39

2...B...39

2...BX...42

1...B...40

2...B...40

10.1 ...10.9

2...15x15

Belt

10,000

2...3...56HZ

2...5...56HZ

1725

3450

753-952

967-1290

872-1071

Ball

1300

3.7-4.7

2.9-3.9

4.3-5.3

7/8

2...B...39

2...BX...42

2...B...40

10.1 ...10.9

2...15x15

Belt

12,000

2...5...56HZ

3450

967-1290

Ball

1300

2.9-3.9

7/8

2...BX...42

10.1 ...10.9

380 (420*) _+10 380 (420*) _+10 380 (420*) _+10 380 (420*) _+10

300 (420*) _+15 300 (420*) _+15 300 (420*) _+15 300 (420*) _+15

20 (40*) _+3 20 (40*) _+3 20 (40*) _+3 20 (40*) _+3

40 (60*) _+5 40 (60*) _+5 40 (60*) _+5 40 (60*) _+5

2...11/8 2...11/8 2...11/8 2...11/8

2.. ,7/8 2.. ,7/8 2.. 7/8 2.. ,7/8

4...20x34.5x1 4...20x34.5x1 4...20x34.5x1 4...30x34.5x1

*R-410A models.

Table 3B -- Physical Data -- 50BVT, U,V,W,X

UNIT 50BVT, U,V,W,X 034 044 054 064

NOMINAL CAPACITY (Tons) 30 40 50 60

OPERATING WEIGHT (Ib)

50BVT, V...50BVW 2580,,,2645 4334,,,4404 5198,,,5298 5230,,,5330

50BVU...50BVX 2420,,,2485 4094,,,4164 4938,,,5038 4970,,,5070

COMPRESSOR Copeland Scroll

Quantity 2 4 4 4

Number of Refrigerant Circuits 2 4 4 4

Oil (oz.)

Circuit 1 ...Circuit 2 140...140 110,,,110 140,,,140 140,,,140

Circuit 3...Circuit 4 -- 110,,,110 140,,,140 140,,,140

REFRIGERANT TYPE R-22

Expansion Device TXV TXV TXV TXV

Operating Charge (Ib)

Circuit 1 ...Circuit 218.0...18.0 10,0,,,10,0 18,0,,,18,0 18,0,,,18,0

Circuit 3...Circuit 4 -- 10.0... 10.0 18,0,,, 18.0 18,0,,, 18.0

CONDENSER (50BVT, V,W only) Tube-in-Tube Coaxial

Quantity of Manifolded Circuits

Nominal Flow Rate (GPM)

Water Flow Range (GPM)

Max. Water Working Pressure (PSIG)

Max. Refrig. Working Pressure (PSIG)

Min. Entering Water Temp. (°F)

Max. Entering Water Temp. (°F)

Waterside Volume (gal)

EVAPORATOR COIL

Rows... Fins/in.

Total Face Area (sq ft)

EVAPORATOR FAN

Quantity...Size

Type Drive

Nominal CFM

Motor Option 1Qty...HP...Frame Size

Motor Option 2 Qty...HP...Frame Size

Motor Option 3 Qty...HP...Frame Size

Motor Option 4 Qty...HP...Frame Size

Motor Nominal RPM

Fan Drive RPM Range

Standard (7.5 HP)

Standard (10, 15, 20 HP), Med Static (7.5 HP)

Med Static (10, 15, 20 HP), High Static (7.5 HP)

High Static (10, 15, 20 HP)

Motor Bearing Type

Maximum Allowable RPM

Motor Pulley Pitch Diameter

Std Fan Drive (7.5 HP)

Std Fan Drive (10, 15, 20 HP), Med Static (7.5 HP)

Med Static Fan Drive (10, 15, 20 HP), High Static (7.5 HP)

High Static Fan Drive (10, 15, 20 HP)

Motor Shaft Diameter (in.) (7.5, 10 HP)

Motor Shaft Diameter (in.) (15, 20 HP)

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

Std Fan Drive (7.5 HP)

Std Fan Drive (10, 15, 20 HP), Med Static (7.5 HP)

Med Static Fan Drive (10, 15, 20 HP), High Static 7.5 HP)

High Static Fan Drive (10, 15, 20 HP)

Pulley Center Line Distance (in.)

Speed Change Per Full Turn of Moveable Pulley Flange (RPM)

Std Fan Drive (7.5 HP)

Std Fan Drive (10, 15, 20 HP), Med Static (7.5 HP)

Med Static Fan Drive (10, 15, 20 HP), High Static (7.5 HP)

High Static Fan Drive (10, 15, 20 HP)

Fan Shaft Diameter (in.)

HIGH PRESSURE SWITCHES (PSIG)

Cutout

Reset (Auto)

LOW PRESSURE SWITCHES (PSIG)

Cutout

Reset (Auto)

REMOTE REFRIGERANT CONNECTIONS (50BVU,X Only)

Discharge (Hot Gas) Connection (in.) Qty...Size

Liquid Connection (in.) Qty...Size

RETURN AIR FILTERS

Quantity...Size (in.)

60-120

400

450

110

6.0

120

80-160

400

450

110

9.0

150

100-200

400

450

110

11.3

180

120-240

400

450

110

13.5

4...12 3...12 4...12 4...12

23.2 46.4 46.4 46.4

1...18x18

Belt

12,000

1...7.5...213T

1...10...215T

1... 15...254T

1...20...256T

1750

780-960

805-991

960-1146

1119-1335

Ball

1450

5.2-6.4

4.8-6.0

5.8-7.0

13&

2...18x18

Belt

16,000

2...7.5...213T

2...10...215T

2...15...254T

1750

780-960

805-991

960-1146

1119-1335

Ball

1450

5.2-6.4

4.8-6.0

5.8-7.0

13&

2...B...48

2...B...46

2...B...48

2...B...45

10.2-11.4

17/16

2...B...48

2...B...46

2...B...48

2...B...45

10.2-11.4

2...18x18

Belt

20,000

2...7.5...213T

2...10...215T

2...15...254T

2...20...256T

1750

780-960

805-991

960-1146

1119-1335

Ball

1450

5.2-6.4

4.8-6.0

5.8-7.0

13/8

15/8

2...B...48

2...B...46

2...B...48

2...B...45

10.2-11.4

17/16

2...18x18

Belt

24,000

2...7.5...213T

2...10...215T

2...15...254T

2...20...256T

1750

780-960

805-991

960-1146

1119-1335

Ball

1450

5.2-6.4

4.8-6.0

5.8-7.0

13/8

15/8

2...B...48

2...B...46

2...B...48

2...B...45

10.2-11.4

17/16

380 ± 10 380 ± 10 380 ± 10 380 ± 10

300 ± 15 300 ± 15 300 ± 15 300 ± 15

20 ± 3 20 ± 3 20 ± 3 20 ± 3

40 ± 5 40 ± 5 40 ± 5 40 ± 5

2...11/8 4...11/8 4...11/8 4...11/8

2,,,7/8 4,,,7/8 4,,,7/8 4,,,7/8

8...17X27X4 16...17X27X4 16...17X27X4 16...17X27X4

ACOUSTICAL CONSIDERATIONS -- Proper acoustical

considerations are a critical part of every system's design and

operation. Each system design and installation should be

reviewed for its own unique requirements. For job specific

requirements, contact an acoustical consultant for guidance and

recolmnendations.

In general, to reduce noise, consider the following:

• Locate mechanical room and ducts away from noise

sensitive locations. Whenever possible, work with the

architect to locate the equipment rooms around the

perimeters of restrooms, hallways, fire escapes, stair

wells, etc., to reduce noise transmission. This allows not

only for isolation from radiated sound but also enables

the contractor to route duct systems around sensitive

locations.

• Construct the equipment room of concrete block or use a

double offset stud wall with interwoven insulation. Seal

all penetrations.

• Design the system for low total static pressure.

• Use suitable vibration isolation pads or isolation springs

according to the design engineer's specifications.

• A flexible canvas duct connector is recommended on

both the supply and return air sides of units to be

connected to system ductwork.

• Use a minimum of 15 ft of return ductwork between the

last air terminal or diffuser and the unit.

• Insulate supply and return ducts with 2-in., 3-1b density

insulation.

• Round duct is recolmnended. If rectangular ductwork is

used, keep aspect ratios as small as possible (i.e., as close

to square as possible).

• Avoid any direct line of sight from return air grilles

into the unit's return. If return air is to be ducted to an

equipment room, an elbow should be installed within the

equipment room.

• Running a return air drop to near the floor of the room

will aid in sound attenuation.

• Do not exceed the recolmnended supply duct velocity of

2,000 fpm.

• Do not exceed the recommended return duct velocity of

1,000 fpm.

• Use turning vanes on 90-degree elbows.

• Place isolation springs under each corner and under each

compressor if utilized.

ASSEMBLING MODULAR UNITS -- 50BVT, U,V,W,X

30 to 60 ton units ship in the number of pieces shown in Table

2. Reassemble the unit. Use the loose hardware provided in the

main air-conditioning section and the instructions below.

1. The filter/economizer section ships bolted to the main air-

conditioning section and can be removed in the field.

When reattaching the filter/economizer section to the

mare air-conditioning section, place the filter side of the

filter/economizer section facing out and away from the

mare air conditioning section.

2. If the unit has 2 filter/economizer and 2 main air-

conditioning sections (40 through 60 ton units), bolt the

remaining filter/economizer section and mare air-

conditioning section together, as in Step 1.

3. For units with 2 filter/economizer and 2 main air-

conditioning sections, use the provided unions to assem-

ble the water connections between the 2 additional

sections joined in Step 2.

4. For units with multiple air conditioning sections, connect

the condensate drain hoses from the "B" side of the unit

to the drain manifold on the "A" side of the unit.

5. For unit sizes 044-064, connect power wiring from the

mare terminal block in the "A" side of the unit to the

power terminal block in the "B" side of the unit.

6. For VAV units only, connect the plenum robing, coiled

behind the VAV control panel, to the bulkhead fittings

located in the discharge of the supply fan. This connects

the high pressure supply to the high side of the duct high

static pressure switch.

Remove all shipping blocks, if any, under blower housing

or damage to the fan may occur.

Step 3 -- Install Ductwork -- The VAV units must

use a "pair of pants" configuration as shown in Fig. 15. Refer

to the Carrier System Design Manual or ASHRAE (American

Society of Heating, Refrigerating and Air Conditioning Engi-

neers) standards for the recolmnended duct connection to unit

with 2 fans.

NOTE: A = 11/2 to 21/2B

A,rB

Fig. 15 -- Typical Fan Discharge Connections for

Multiple Fan Units

A supply air outlet collar and return air duct flange are pro-

vided on all units to facilitate duct connections. Refer to dimen-

sional drawings (Fig. 2-14) for connection sizes and locations.

A flexible canvas duct connector is recolmnended on both

supply and return air sides of the units to be connected to the

system ductwork.

All metal ductwork should be adequately insulated to avoid

heat loss or gain and to prevent condensation from forming on

the duct walls. Uninsulated ductwork is not recommended, as

the unit's performance will be adversely affected.

Do not connect discharge ducts directly to the blower

outlet(s). The factory filter should be left in place on a free

return system.

If the unit will be installed in a new installation, the duct

system should be designed in accordance with the System De-

sign Manual, Part 2 and with ASHRAE (American Society of

Heating, Refrigeration and Air Conditioning Engineers) proce-

dures for duct sizing. If the unit will be connected to an existing

duct system, check that the existing duct system has the capaci-

ty to handle the required airflow for the unit application at an

acceptablesystemstaticpressure.If theexistingductsystemis

toosmall,largerductworkmustbeinstalled.

Theductsystemanddiffusersshouldbesizedtohandlethe

designairflowvolumesquietly.Tomaximizesoundattenuation

oftheunit'sblower(s),thesupplyandreturnairplenumsshould

beinsulatedforalengthofatleast15ftfromtheunit.Directline

of sightfromremmairgrillesintotheunit'sreturnshouldbe

avoided.If remmairistobeductedtoanequipmentroom,an

elbowshouldbeinstalledwithintheequipmentroom.Runninga

returnairdroptoneartheflooroftheroomwillaidin sound

attenuation.Avoidtransmittingvibrationsgeneratedbythe

movementofairintheductingtothewallsofthebuilding.This

isespeciallyhnportantwhereductworkpenetrateswalls.The

lnaximumrecolnmendedreturnairvelocityis1,000fpm.Lower

remmairvelocitieswillresultinlowersoundpowerlevels.The

useofroundsupplyductplenumsshouldbeconsidered,asit

willsignificantlyreducelowfrequencysoundattheequipment

room.If rectangularsupplyplenumsareused,theaspectratioof

theductshouldbekeptassmallaspossible(i.e.,ascloseto

squareaspossible).Thelarge,flatsurfaceareasassociatedwith

largeaspectratioductsystemswilltransmitsoundtothespace,

andthepotentialforduct-generatednoiseisincreased.Themax-

hnumrecolrunendedsupplyairductvelocityis2,000fpm.

Unitswithtwofansshouldhaveaproperlydesigned"pair

of pants"ductconnection.An adequatestraightlengthof

ductingfromtheunitshouldbeallowedbeforeelbowsare

installed.If connectinganelbowdirectlytothefanoutlet,a

minimumstraightlengthof2fandiametersfromthefanoutlet

isrecolrunended.Elbowsshouldturninthedirectionoffanro-

tation,if possible.Abruptturnswillgenerateairturbulenceand

excessivenoise.Turningvanesshouldbeusedinallshortradi-

usbends.Ensurethatductingdoesnotobstructaccesstothe

unitforroutineservicing.

DUCTSTATICPRESSUREPROBEANDTUBING(VAV

Only)-- OnVAVsystems,theductstaticpressuresensorand

robingarefield-mounted.Thesensorrobingsensingpoint

shouldbelocatedneartheendofthemainsupplytrunkductin

apositionfreefromturbulenceeffectsandatleast10ductdi-

ametersdownstreamand4ductdiametersupstreamfromany

majortransitionsorbranchtake-offs.Incorrectlyplacingthe

sensingpointcouldresultinimproperoperationoftheentire

VAVsystem.

Installthefactory-suppliedductstaticpressureprobewith

thetipfacingintotheairflow.SeeFig.16.

iAIRFLOW[_ /

J_ _/_ PROBE

'I,Jb, I'

_4 ......................TUBING

Fig. 16- Duct Static Pressure Probe

(PIN 39EK20462)

Use */4-in. OD approved polyethylene robing for up to

50 ft (3/s-in. OD for 50 to 100 ft) to connect the probe to the

bulkhead fitting mounted above the unit display panel

(Fig. 17). Carefully route the robing from the probe to this

bulkhead fitting.

The static pressure control should be adjusted so that, at full

airflow, all of the remote VAV terminal boxes receive the

lninhnum static pressure required plus any downstream resis-

tance. Control the system to the lowest static pressure set point

that will satisfy airflow requirements. Lower static pressure set

points reduce total required brake horsepower and reduce

generated sound levels.

DUCT HIGH-STATIC (DHS) LIMIT SWITCH (VAV

Only)- The duct high static limit switch is a mechanical

safety that prevents duct overpressurization. The switch is lo-

cated on the side of the VAV low voltage control panel

(Fig. 18) and is factory set at 3 in. wg. To make an adjustment

using an accurate differential pressure gage, connect low side

and high side to gage and pressure source. Place a voltmeter

across comlnon and norlnally open contacts. Rotate the adjust-

ment knob (Fig. 19) clockwise to increase pressure setting and

counterclockwise to decrease pressure setting. When the bot-

tom of the adjustment knob is approxhnately l/s-in, from the

switch body, the switch will trip at approximately 3 in. wg.

IMPORTANT: Use robing that complies with local codes.

Improper location or installation of the supply duct pres-

sure tubing will result in unsatisfactory unit operation and

poor performance.

DUCTSTATIC

/PRESSURE

PROBE

BULKHEAD

FITTING

WARNING

ALARM

LOCAL

OFF

REMOTE

Fig. 17 -- Display Panel Location on Unit Front Panel

BLOWER _} j_

BLOWER

His

VFD STATIC PRESSURE

TRANSDUCER

Fig. 18- DHS Pressure Limit Location

POSITIVE PRESSURE

CON NECTI--OREGATIVE PRESSURE

ONNECTOR

• M -- ..COMMON

KNOB BOTTOM

Fig. 19- DHS Limit Switch (PIN 190060)

Step 4EMake Piping Connections

CONDENSER WATER PIPING (Water-Cooled Only) --

Always follow national and local codes when installing water

piping to ensure a safe and proper installation. Connections to

the unit should incorporate vibration elhninators to reduce

noise and vibration to the building, and shutoffvalves to facili-

tate servicing.

Prior to connecting the unit(s) to the condenser water

system, the system should be flushed to remove foreign

material that could cause condenser fouling. Install a screen

strainer with a minimum of 20 mesh ahead of the condenser

inlet to prevent condenser fouling and internal condenser robe

damage from foreign material.

Supply and return water piping must be at least as large as

the unit connections, and larger for long runs. Refer to the

System Design Manual, Part 3, and standard piping practice,

when sizing, planning, and routing water piping. See dimen-

sion drawings (Fig. 2-14) for water connection sizes and

locations.

Units are furnished standard with a copper heat exchanger.

A cupronickel heat exchanger is also available as a

factory-installed option. Copper is adequate for closed loop

systems where good quality water is available. In conditions

where scale formation or water treatment is questionable, the

optional cupronickel heat exchanger should be used. Where the

water is especially corrosive or could lead to excessive fouling,

intermediate plate frame heat exchangers are recolmnended.

Galvanized pipe or fittings are not recolmnended with

50BV units due to the possibility of galvanic corrosion

caused by dissimilar metals. When selecting piping

materials, use only approved piping materials that meet

applicable codes and that will handle the temperatures and

pressures that may be experienced in the application.

Piping systems will sweat if low temperature fluid is used

in the system. For these applications, supply and return

water piping should be insulated to protect from condensa-

tion damage. The minimum recolrnnended entering water

temperature to the unit is 50 E

The unit is capable of operating with entering water temper-

amres as low as 50 F, without the need for head pressure

control. If the entering water temperature is expected to be

lower, or more stable unit operation is desired, a field-supplied

water-regulating valve may be used.

This unit has multiple independent refrigerant circuits with

separate condensers. The individual condensers are manifolded

together on the waterside to provide easy, single-point water

connections. In order to achieve proper head pressure control

when a water-regulating valve is used, a temperature-actuated

valve is recolrnnended. This allows any of the independent

refrigerant circuits to operate while still modulating condenser

water flow in response to loop water temperature.

A glycol solution should be used if ambient temperatures

are expected to fall below freezing or if the loop water temper-

amre is below 50 F while operating in the reverse cycle heating

mode (heat pump units only). Refer to Table 4, which

lists freezing points of glycol at different concentrations. A

minimum concentration of 20% is recolrnnended. Water

pressure drop will increase and unit performance will decrease

with increasing glycol concentrations.

Units with factory-installed waterside economizers have

cooling water passing through the economizer and condenser

in series while operating in the economizer mode. During

normal operation, water bypasses the economizer coil.

Table 4 -- Glycol Freezing Points

%GLYCOL

FREEZE POINT (° F)

Ethylene Glycol Proplylene Glycol

18 19

7 9

-7 -5

-28 -27

All manual flow valves used in the system should be of the

ball valve design. Globe or gate valves must not be used due to

high pressure drops and poor throttling characteristics.

Do not exceed recolmnended condenser fluid flow rates

shown in Tables 5A and 5B. Serious damage or erosion of the

heat exchanger tubes could occur. Piping systems should not

exceed 10 fps fluid velocities to ensure quiemess and tube wall

integrity. Refer to Tables 5A and 5B for condenser water pres-

sure drop versus flow rate. Flow rates outside of the published

range should not be used.

Ball valves should be installed in the supply and return lines

for unit isolation and water flow balancing.

Table 5A -- Condenser Pressure Drop

50BVC,J,Q Units

FLOW RATE

(gpm)

35 9.1

40 11.2

45 13.5

50 15.9

55 18.4

60 21.1

65 23.9

70 27.4

100

105

110

115

120

LEGEND

GPM -- Flow Rate

PD -- Pressure Drop (ft wg)

SIZE020 ] SIZE024 ] SIZE028 ] SIZE034

Pressure Drop (ft wg)

6.0 -- --

7.5 -- --

9.1 9.1 --

10.9 10.9 --

12.8 12.8 10.8

14.8 14.9 12.7

17.0 17.2 14.7

19.3 19.6 16.9

21.7 22.2 19.2

-- 24.9 21.7

-- 27.8 24.3

-- 30.8 27.1

-- 34.0 30.0

-- -- 33.1

-- -- 36.3

-- -- 39.7

-- -- 43.2

Table 5B -- Condenser Pressure Drop

50BVT,V,W Units

FLOW RATE SIZE034 ] SIZE044 ] SIZE054 ] SIZE064

(gprn) Pressure Drop (ft wg)

60 -- -- --

70 -- -- --

80 6.3 -- --

90 8.0 -- --

1O0 9.9 6.0 --

110 12.0 7.3 --

120 14.3 8.7 8.7

130 16.7 10.2 10.2

140 19.4 11.8 11.8

150 22.3 13.6 13.6

160 25.3 15.5 15.5

170 -- 17.4 17.4

180 -- 19.6 19.6

190 -- 21.8 21.8

200 -- 24.2 24.2

210 -- -- 26.6

220 -- -- 29.2

230 -- -- 31.9

240 -- -- 34.8

GPM --

PD --

8.7

11.9

15.5

19.6

24.2

29.3

34.9

LEGEND

Flow Rate

Pressure Drop (ft wg)

Pressure and temperature ports are recolmnended in both

the supply and return lines for system flow balancing. These

openings should be 5 to 10 pipe diameters from the unit water

connections. For thorough mixing and temperature stabiliza-

tion, wells m the water piping should extend at least 1/2 pipe

diameter into the pipe. Measuring the condenser waterside

pressure drop and refemng to Tables 5A and 5B can help to

properly set the water flow rate.

Improper fluid flow due to valvmg, piping, or improper

pump operation constitutes abuse that may result in voiding of

unit warranty. The manufacturer will not be responsible for

damages or failures resulting from improper piping design or

piping material selection.

EVAPORATOR CONDENSATE DRAIN -- The condensate

dram connection is 11/4-in. FPT and is located on the same side

of the unit as the condenser water connections. See dimension

drawings (Fig. 2-14) for exact location.

Drain lines should be pitched away from the unit with a

lnmimum slope of l/s-in, per foot and conform to all local and

national codes.

A trap must be installed m the condensate line to ensure free

condensate flow (units are not internally trapped). A vertical air

vent is sometimes required to avoid air pockets.

Install a condensate-trapping dram line at the units drain

connection. See Fig. 20 for correct drain layout.

1/2 P1

Fig. 20 -- Condensate Drain Layout

When calculating trap depth, remember that it is not the

total static pressure but the upstream or downstream static

resistance that is trapped against. For instance, when calculat-

ing the trap depth for a cooling coil condensate pan, trap

against the coil pressure drop m that coil section and any other

pressure drops upstream of it.

If calculating the trap depth for the cooling coil, use the total

static pressure drop (coil plus any other components upstream

of it) plus 1 in. (P1 = negative static pressure + 1 m.), as shown

in Fig. 21.

Traps must store enough condensate to prevent losing the

drain seal at start-up. The "Mimmum 1/2PI" dimension ensures

that enough condensate is stored.

Drain pans should be cleaned periodically to avoid the

build-up of dirt and bacterial growth.

HOT WATER HEAT_G COIL (Optional) --A factory-installed

one or 2-row hot water heating coil is available as an option. The

coil is supplied with hot water from a boiler through separate pip-

mg from the condenser water loop. All controls for heating opera-

tion are field-supplied.

Piping should be in accordance with accepted industry

standards and all components rated for the system pressure

expected. Pipe the coils so that they will drain, and provide a

dram and vent.

Always connect the supply to the top of the coil, and the

return to the bottom. Refer to Fig. 2-14 for hot water supply

and return piping locations.

Water coils should not be subjected to entering air tempera-

tures below 38 F to prevent coil freeze-up. If air temperatures

across the coil are going to be below this value, use a glycol or

brine solution. Use a solution with the lowest concentration

that will match the coldest air expected. Excess concentrations

will greatly reduce coil capacity.

The return air duct system should be carefully designed to

get adequate mixing of the return air and outdoor air streams to

prevent cold spots on the coil that could freeze.

A 2 or 3-way, field-supplied modulating control valve, or a

simple 2-position on-off valve may be used to control water

flow. Select the valve based on the control valve manufacturer's

recolmnendations for size and temperature rating. Select the

control valve CV based on pressure drop and flow rate through

the coil. This information is available from the VPA('Builder

software program or Tables 6A and 6B.

Table 6A -- Hot Water Pressure Drop

50BVC,E,J,K,Q Units

FLOW RATE

(gpm)

10 0.7

15 1.5

20 2.6

25 4.0

30 5.8

35 7.8

40 10.2

45 12.9

50 15.8

LEGEND

GPM -- Flow Rate

PD -- Pressure Drop (ft wg)

SIZE020 ISIZE024 ISIZE028 ISIZE034

Pressure Drop (ft wg)

0.7 0.7 --

1.5 1.5 --

2.6 2.6 --

4.0 4.0 --

5.8 5.8 0.1

7.8 7.8 0.1

10.2 10.2 0.1

12.9 12.9 0.2

15.8 15.8 0.2

-- -- 0.3

-- -- 0.4

Table 6B -- Hot Water Pressure Drop

50BVT, U,V,W,X Units

FLOW RATE SiZEO34I SIZE044I SiZE0S4I SiZE064

(gpm) Pressure Drop (ft wg)

45 2.4 -- -- --

50 3.0 -- -- --

55 3.6 -- -- --

60 4.3 -- -- --

65 5.0 -- -- --

70 5.7 -- -- --

75 6.6 -- -- --

80 7.4 -- -- --

85 8.4 -- -- --

90 9.3 2.5 2.5 2.5

100 -- 3.1 3.1 3.1

110 -- 3.7 3.7 3.7

120 -- 4.4 4.4 4.4

130 -- 5.1 5.1 5.1

140 -- 5.9 5.9 5.9

150 -- 6.7 6.7 6.7

160 -- 7.6 7.6 7.6

170 -- 8.6 8.6 8.6

180 -- 9.6 9.6 9.6

LEGEND

GPM -- Flow Rate

PD -- Pressure Drop (ft wg)

Pipe sizes should be selected based on the head pressure

available from the pump. Water velocity should not exceed

8 fps. Design the piping system for approxhnately 3 ft of loss

per 100 equivalent ft of pipe. The piping system should allow

for.expansion and minhnize vibration between the unit and

piping system.

WATER ECONOMIZER (Optional) -- The optional waterside

economizer (pre-coolmg coil) is factory-installed and piped inter-

nally, m series with the condenser water circuit (Fig. 21). A divert-

mg valve and factory controls are included with the option. Only

one set of field connections needs to be made for condenser water

and economizer water. In addition, when the unit is shipped with

the economizer option, the economizer dram must be connected

to a separate trap. Follow the same steps for the economizer dram

as described for the evaporator condensate dram. An Aquastat is

used to modulate water flow through the economizer. The control-

ler is mounted to the low voltage control box. Electrical connec-

tions are factory installed and wired. The remote bulb is shipped

mtemal to the unit and requires field mounting. Care should be

taken not to dent the bulb or miscalibration may occur. The

Aquastat has a temperature range adjustment (-30 F to 100 F) and

is field set. See Fig. 2-14 for connection locations and sizes. See

Tables 7A and 7B for economizer waterside pressure drop data.

The waterside economizer can also be ordered without

factory-installed piping or controls. This offers additional

flexibility for specific applications. In this case, the coil is

factory mounted, but all supply and return piping and controls

are field supplied.

Table 7A -- Economizer Pressure Drop Curve

(ft wg), 50BVC,E,J,K,Q Units

FLOW RATE S,ZE020I S,ZE024I S,ZE028I S,ZE034

(gpm) Pressure Drop (ft wg)

35 8.9 -- -- --

40 11.5 11.0 -- --

45 14.4 13.8 -- --

50 17.6 16.9 16.9 --

55 21.1 20.4 20.4 --

60 24.9 24.1 24.1 3.5

65 29.0 28.1 28.2 4.1

70 34.4 32.5 32.5 4.7

75 -- 37.1 37.2 5.4

80 -- 42.1 42.1 6.1

85 -- -- 47.4 6.9

90 -- -- 52.9 7.7

95 -- -- 58.7 8.5

100 -- -- 64.9 9.4

105 -- -- -- 10.3

110 -- -- -- 11.3

115 -- -- -- 12.3

120 -- -- -- 13.4

LEGEND

GPM -- Flow Rate

PD -- Pressure Drop (ft wg)

_'... 3-/_ B2L_YvAMLOTEORIZED

] --

N.O.

FLUID IN /

"BULB STRAPPED

TO FLUID" IN LINE

(FIELD INSTALLED)

WATERSIDE

ECONOMIZER

COIL

FLUID TO REFRIGERANT

HEAT EXCHANGER

POSITIVE SHUT-OFF SOLENOID

VALVE FOR VARIABLE SPEED

PUMPING SYSTEM

(FIELD INSTALLED)

Fig. 21 -- Optional Water Economizer

Table 7B -- Economizer Pressure Drop Curve

(ft wg), 50BVT, U,V,W,X Units

FLOW RATE

(gpm)

100

110

120

130

140

150

160

170

180

190

200

210

220

230

240

LEGEND

GPM -- Flow Rate

sizE034I sizE044I slzEos4I sizE064

Pressure Drop (ft wg)

13.1 -- -- --

17.9 -- -- --

23.5 5.8 -- --

29.8 7.3 -- --

36.9 9.1 9.0 --

44.8 11.0 11.0 --

53.4 13.1 13.1 13.1

-- 15.4 15.4 15.4

-- 17.9 17.9 17.9

-- 20.6 20.6 20.6

-- 23.5 23.5 23.5

-- -- 26.6 26.5

-- -- 29.8 29.8

-- -- 33.3 33.2

-- -- 36.9 36.8

-- -- -- 40.7

-- -- -- 44.7

-- -- 48.9

-- -- 53.3

-- Pressure Drop (ft wg)

REMOTE REFRIGERANT PIPING (Remote Air-Cooled

Only)- Carrier 50BVE, tCU,X units are supplied without

condensers. To complete the installation, these units must be

field connected to a suitable remote condenser. The 50BV units

from 18 to 30 tons contain 2 equally sized independent refriger-

ant circuits. Units from 40 to 60 tons have 4 separate equal ca-

pacity refrigerant circuits. It is hnportant that the condenser cir-

cuiting be properly matched to the 50BV unit circuiting. Other-

wise, unsatisfactory operation will result. Carrier will not be

responsible for improperly matched remote condenser selec-

tions. Recolrnnended condenser matches are shown in Table 8.

Table 8 -- Recommended Condenser Matches

for 50BVE,K,U,X Units

50BV NO. OF

CKTS CONDENSER(S)

020 2 09DK020 (1)

024 2 09DK024 (1)

028 2 09DK028 (1)

034 2 09DK034 (1)

044 4 09DK024 (2)

054 4 09DK028 (2)

064 4 09DK034 (2)

CONDENSER

CIRCUITING

50/50%

50/50% (each)

Install the air-cooled condenser or condensers according to

the installation instructions provided with the condenser(s).

Connection locations and sizes for the hot gas and liquid lines

on the 50BV units are shown in Fig. 2-14, 22 and 23. For

50BV units up to 30 tons, there will be 2 hot gas lines and 2 liq-

uid lines to install between the unit and the condenser. Above

30 tons, 4 hot gas lines and 4 liquid lines will be installed be-

tween the unit and the 2 condensers. Refer to the System De-

sign Manual, Part 3 for standard refrigerant piping techniques.

Also see the air-cooled condenser installation instructions for

additional guidance.

Remote air-cooled 50BV units (only) are shipped with a dry

nitrogen holding charge. After refrigerant connections are

made, release nitrogen, evacuate, leak test, and charge the

system as described in Charging the System in the Mainte-

nance section of this manual.

TRAP (MUST BE

ABOVE TOP OF

CONDENSER COIL)

SLOPE II -r][

TOWARD _ I H / REMOTE

C ONDENSER__._._ I CONDENSER

HOT GAS

LINE

50BV

UNIT

[]

"_" LIQUID

LINE

Fig. 22 m System with Condenser

Above Evaporator

50BV

UNIT

Ep-m

LIQUID _"

LINE

HOTGAS

LINE

SLOPETOWARD

CONDENSER

REMOTE

CONDENSER

Fig. 23 -- System with Evaporator

Above Condenser

Step 5-- Complete Electrical Connections

Verify that electrical requirements listed on the unit nameplate

match available power supply. The unit voltage must be within

the range shown in Tables 9A and 9B and phases must be

balanced within 2%. Contact the local power company for line

voltage corrections. Never operate a motor where a phase im-

balance in supply voltage is greater than 2%.

Foranunbalanced3-phasesupplyvoltage,usethefollow-

ingformulatodeterminethepercentofvoltageimbalance:

PercentVoltagehnbalance

= 100x maxvoltage deviation from average voltage

average voltage

Example: Supply voltage is 460-3-60.

A _ c AB=452V

BC = 464 V

AC = 455 V

Average Voltage = 452 + 464 + 455

1371

= 457

Determine maximum deviation from average voltage:

(AB)457- 452= 5 V

(BC) 464 - 457 = 7 V

(AC) 457 - 455 = 2 V

Maximum deviation is 7 V.

Determine percent of voltage imbalance:

% Voltage hnbalance = 100 x 7

= 1.53% 457

This amount of phase imbalance is satisfactory as it is be-

low the maximum allowable 2%.

IMPORTANT: If supply voltage phase imbalance is [

more than 2%, contact the local electric utility com- I

pa W innnediately.

POWER WIRING- Properly sized fuses or HACR (Heat-

ing, Air Conditioning and Refrigeration) circuit breakers must

be installed for branch circuit protection, according to the

national and applicable local codes. See unit nameplate and

Tables 9A and 9B for maximum overcurrent protection size.

These units are provided with single point, main power

supply terminal blocks. Refer to Fig. 2-14 for conduit connec-

tion locations. Connect the power leads as indicated on the unit

wiring diagrams (found in the Troubleshooting section) and be

certain to connect the ground lead to the ground lug in the unit

high voltage electrical box. Refer to Tables 9A and 9B for unit

electrical data.

Table 9A -- Electrical Data -- 50BVC,E,J,K,Q

UNIT SIZE

50BVC,E,J,K,Q

020

024

028

034

VOLTAGE COMPRESSOR POWER DISCONNECT

NOMINAL RANGE No. 1 No. 2 INDOOR FAN MOTOR SUPPLY SIZE

VOLTAGE FLA

(3 Ph, 60 Hz) Min Max RLA LRA RLA LRA Qty (HaP) (ea) MCA MOCP FLA

1.5 5.0 84.0 110 75.8

2 6.4 86.8 110 78.6

208/230 187 253 32.9 195 32.9 195 2 3 9.0 92.0 110 83.8

5 12.2 98.4 110 90.2

1.5 2.5 42.1 50 38.0

2 3.2 43.5 50 39.4

3 4.5 46.1 50 42.0

460 414 506 16.5 95 16.5 95 2

5 6.1 49.3 50 45.2

575 518 633 13.6 80 13.6 80

1.5 2.0 34.6 45 31.2

2 2.0 34.6 45 31.2

3 3.6 37.8 45 34.4

5 5.4 41.4 45 38.0

2 6.4 88.4 120 80.0

208/230 187 253 33.6 225 33.6 225 2 3 9.0 93.6 120 85.2

12.2 100.0 120 91.6

3.2 48.3 60 43.6

460 414 506 18.6 114 18.6 114 2 3 4.5 50.85 60 46.2

5 6.1 54.05 60 49.4

2 2.0 34.6 45 31.2

575 518 633 13.6 80 13.6 80 2 3 3.6 37.8 45 34.4

208/230 187 253 53.6 245 53.6 245

5.4 41.4 45 38.0

9.0 138.6 190 125.2

12.2 145.0 190 131.6

3 4.5 55.6 70 50.4

460 414 506 20.7 125 20.7 125 2 5 6.1 58.8 70 53.6

3 3.6 44.1 60 40.0

575 518 633 16.4 100 16.4 100 2 5 5.4 47.7 60 43.6

208_30 187 253 59.1 425 59.1 425 2 5 12.2 157.4 200 142.6

460 414 506 26.4 187 26.4 187 2 5 6.1 71.6 90 65.0

575 518 633 20.5 148 20.5 148 2 5 5.4 56.9 70 51.8

FLA --

LRA --

MCA --

MOCP --

RLA --

LEGEND

Full Load Amps

Horsepower

Locked Rotor Amps

Minimum Circuit Amps

Maximum Overcurrent Protection

Rated Load Amps

UNIT SIZE

50BVT, U,V,W,X

034

044

054

064

Table 9B -- Electrical Data -- 50BVT,U,V,W,X

NOMINAL

VOLTAGE

(3 Ph, 60 Hz) Min Max RLA LRA RLA LRA Qty

VOLTAGE COMPRESSOR INDOOR FAN MOTOR

RANGE No. 1 /No. 2 No. 3 /No. 4

208_30 187 253 62.2 376 -- -- 1

460 414 506 27.6 178 -- -- 1

575 518 633 20.5 148 -- -- 1

208_30 187 253 42.0 239 42.0 239 2

460 414 506 19.2 125 19.2 125 2

575 518 633 12.4 80 12.4 80 2

208/230 187 253 47.1 318 47.1 318 2

460 414 506 22.6 158 22.6 158 2

575

208_30

46O

518 633 17.3 125 17.3 125 2

187 253 62.2 376 62.2 376 2

414 506 27.6 178 27.6 178 2

518 633 20.5 148 20.5 148 2

LEGEND

MCA -- Minimum Circuit Amps

MOCP -- Maximum Overcurrent Protection

RLA -- Rated Load Amps

575

FLA -- Full Load Amps

HP -- Horsepower

LRA -- Locked Rotor Amps

POWER DISCONNECT

SUPPLY SIZE

HP FLA MCA MOCP FLA

(ea) (ea)

7.5 19.4 159.4 200 143.8

10 25.8 165.8 225 150.2

15 38.6 178.6 225 163.0

20 49.6 189.6 250 174.0

7.5 9.7 71.8 90 64.9

10 12.9 75.0 100 68.1

15 19.3 81.4 100 74.5

20 24.8 86.9 110 80.0

7.5 7.8 53.9 70 48.8

10 10.3 56.4 70 51.3

15 15.4 61.5 80 56.4

20 19.8 65.9 80 60.8

7.5 19.4 217.3 250 206.8

10 25.8 230.1 250 219.6

15 38.6 255.7 250 245.2

7.5 9.7 101.0 110 96.2

10 12.9 107.4 125 102.6

15 19.3 120.2 125 115.4

7.5 7.8 68.3 80 65.2

10 10.3 73.3 80 70.2

15 15.4 83.5 90 80.4

7.5 19.4 239.0 250 227.2

10 25.8 251.8 250 240.0

15 38.6 277.4 300 265.6

20 49.6 299.4 300 287.6

7.5 9.7 115.5 125 109.8

10 12.9 121.9 125 116.2

15 19.3 134.7 150 129.0

20 24.8 145.7 150 140.0

7.5 7.8 89.1 100 84.8

10 10.3 94.1 110 89.8

15 15.4 104.3 110 100.0

20 19.8 113.1 125 108.8

7.5 19.4 303.2 350 287.6

10 25.8 316.0 350 300.4

15 38.6 341.6 400 326.0

20 49.6 363.6 400 348.0

7.5 9.7 136.7 150 129.8

10 12.9 143.1 150 136.2

15 19.3 155.9 150 149.0

20 24.8 166.9 175 160.0

7.5 7.8 102.7 110 97.6

10 10.3 107.7 125 102.6

15 15.4 117.9 125 112.8

20 19.8 126.7 125 121.6

Modular Units -- For units with multiple mare air-

conditioning sections, connect the high voltage compressor

power wiring to the line side of the high voltage terminal block

in the second section's high voltage electrical box. This wiring

is located in the upper portion of the compressor compartment.

Connect the low voltage wiring, located in the compressor

compartment, between the two air conditioning sections using

the quick connects provided.

For the supply fan in©toe connect the 3-phase high voltage

wiring, coiled behind the high voltage panel, to the line side of

the supply fan motor terminal block located in the fan compart-

ment. For VAV units, connect the 3-phase high voltage wiring

to the line side of VFD.

For units with multiple fans, connect the control power

wiring with the quick connects provided at the fan compart-

ment junction.

CONTROL WIRING (CV Only) -- A standard commercial

thermostat controls constant volume units. These units turn

compressors on or off in response to zone temperature. The

50BV units provide 2 stages of co©ling.

50BVC.E.Q020-034 and 50BVT.U.V034 Only -- These

models have 2 independent refrigerant circuits, each capable of

being staged independently. Thermostat wiring is connected to

the 6-position low voltage terminal block located in the unit

electrical box. The 50BV units have a 24-VAC control

transformer, which provides power to the control circuit and to

the thermostat. The thermostat connections and their functions

are as follows:

C Transformer 24-v ac Common

O Reversing Valve (heat pumps only)

Y1 1st Stage Compressor Contactor

Y2 2nd Stage Compressor Contactor

R Transforlner 24-v ac Hot

G Indoor Fan Contactor

Select an appropriate commercial thermostat that has 2 stag-

es of cooling control. If the unit is a heat pump, make sure the

thermostat is capable of heat pump control. Any of the

Debonair(R) series commercial thermostats will meet the re-

quirements, and are available in a variety of attractive styles, in

programmable and non-programmable versions.

Install the thermostat in the space where the temperature is

being controlled, according to the instructions provided with

the thermostat.

Before wiring the thermostat to the unit, make sure that

mare power to the unit has been disconnected. Failure to

heed this warning could result in personal injury.

To wire the thermostat:

1. Connect the 'C' terminal from the 50BV unit to the 'C'

terminal on the thermostat.

2. Wire the 'YI' and 'Y2' terminals from the 50BV unit

to the 'YI' and 'Y2' terminals, respectively, at the

thermostat.

3. Make a connection between the 'G' terminal on the unit

and the 'G' terminal on the thermostat.

4. Attach a wire from the 'R' terminal at the unit to the 'R'

terminal at the thermostat.

5. 50BVQ and 50BVV ONLY: If the unit is a heat pump,

connect a final wire from terminal 'O' on the heat pump

unit to the 'Wl/O/B' terminal at the thermostat.

Configure the thermostat for heat pump operation using

the installation instructions provided with the thermostat.

Set the reversing valve polarity of the thermostat to 'O'.

See Fig. 24 for typical thermostat wiring.

THERMOSTAT

Y2 R W1 Y1 G C

[24 VAC COMMON

FAN RELAY

COMPRESSOR RELAY

HEAT PUMP

24 VAC RETURN

2nd STAGE COMPRESSOR RELAY

TYPICAL

UNIT

F© C

O o

©Y1

Fig. 24 -- Typical Wiring 18 to 30 Ton Units

(Two-Stage Cooling Units)

50BVT.U.V044-064 Only -- Units larger than 30 tons have 4

independent refrigerant circuits.

These units can be controlled using a standard commercial,

2-stage thermostat. In this case, the first stage of cooling will

turn on compressors 1 and 2, and the second stage will turn on

compressors 3 and 4. It is also possible to have 4 stages of co©l-

ing, using a suitable field-supplied control method.

For 2-stage thermostat wiring, refer to Fig. 25. Jumpers

must be installed between the G and O terminals in Modules A

and B. A field-supplied, 24-v pilot relay should be used to en-

ergize Y2 on Module B whenever Y1 is energized on Module

A. Similarly, a field-supplied 24-v pilot relay should be in-

stalled to energize Y4 on Module B whenever Y3 on Module

A is energized (Y2 stage of thermostat calls for cooling).

Finally, verify that transforlner phasing is consistent

between Modules A and B.

REMOTE CONDENSER FAN CONTACTOR WIR-

ING- For units up to 30 tons, one remote condenser is

required. Install a field-supplied 24-v pilot relay (Aux relay)

between Y1 and C. This will energize the FC contactor on the

remote condenser whenever there is a call for cooling.

For 40 to 60 ton units, 2 remote condensers are required. Be

sure to make piping connections so that compressors 1 and 2 are

connected to condenser 1, and compressors 3 and 4 are connect-

ed to condenser 2. Use an additional set of NO (normally open)

contacts on PR1 to energize FC1 on condenser 1, and a set of

NO contacts on PR2 to energize FC 1 on condenser 2.

CONTROL WIRING (VAV Only) -- The VAV units are de-

signed to operate either with a building management system or

stand alone (local control).

Carrier Comfort Network(R) Control Wiring -- The CC6400

Control Module connects to the Carrier Comfort Network

(CCN) bus in a daisy chain arrangement. Negative pins on

each component must be connected to respective negative pins

and likewise positive pins on each component must be

connected to respective positive pros. The controller signal pros

must be wired to the signal ground pins. Wiring connections

for CCN must be made at the 3-pin plug.

At any baud rate (9600, 19200, 38400 baud), the number of

controllers is lilnited to 239 devices maxilnum. Bus length may

not exceed 4000 ft, with no more than 60 total devices on any

1000-ft section. Optically isolated RS-485 repeaters are

required every 1000 ft.

NOTE: Carrier device default is 9600 baud.

The CCN communication bus wiring is field supplied and

field installed. It consists of shielded 3-conductor cable with

dram (ground) wire. The cable selected must be identical to the

CCN communication bus wire used for the entire network. See

Table 10 for cable recolnmendations.

FIELD-SUPPLIED THERMOSTAT

LEGEND

FC -- Fan Contactor

PR -- Pilot Relay

Fig. 25 -- Typical Wiring 40 to 60 Ton Units

PR2

U IT MODULE 'B'

Remote Condenser Units Only

(#1) FC1-4 i i F01-5

i i

PR1

i i FC1-5

PR2

(#2) FCl-4

Two-Stage Cooling)

Table 10- Recommended Cables

MANUFACTURER PART NUMBER

Alpha 2413 or 5463

American A22503

Belden 8772

Columbia 02525

NOTE: Conductors and dram wire must be at least 20 AWG

(American Wire Gage), stranded, and tinned copper. Individual

conductors must be insulated with PVC, PVC/nylon, vinyl,

Teflon R_*,or polyethylene. An aluminum!polyester 100% foil

shield and an outer jacket of PVC, PVC/nylon, chrome vinyl,

or Teflon with a minimum operating temperature range of

-20 C to 60 C is required.

The colrnnumcation bus shields must be tied together at

each system element. If the colrnnumcation bus is entirely

within one building, the resulting continuous shield must be

connected to ground at only one single point. If the colmnum-

cation bus cable exits from one building and enters another

building, the shields must be connected to the grounds at a

lightning suppressor m each building (one point only).

Wiring Control Devices -- Standard controls require no field

wiring.

Standard controls for VAV applications include: duct static

pressure (DSP), duct high static lhnit switch (DHS), compres-

sor status (CSMUX), supply fan start/stop (SF), and supply fan

speed (SPEED).

Field-installed devices and the factory-supplied supply air

temperature sensor (required) will be wired to the field termi-

nal block (TB2) provided. Refer to Fig. 26 and the following

descriptions. This terminal is located in the control panel as

shown in Fig. 27 and 28.

*Teflon is a registered trademark of E.I. du Pont de Nemours and

Company.

SUPPLY AIR TEMPERATURE SENSOR (SAT) -- The sup-

ply air temperature sensor (Fig. 29) is used to measure the

temperature of the air leaving the unit. The sensor should be

located m the supply air duct, about 1 ft from the unit discharge

connection (Fig. 30). On units with 2 fans, locate the sensor ap-

proximately 5 duct diameters downstream from "pair of pants"

duct connection, allowing for adequate mixing of supply air.

Mount the sensor as follows:

1. Remove the cover of the sensor junction box.

2. Drill a 7/16-m. hole at the selected location.

3. Install the sensor through the hole and secure using 2

no. 8 screws (provided). Do not overtighten.

4. Connect the sensor to the control box. Use an 18 or

20 AWG, 2 conductoc twisted pair cable. This cable is

suitable for distances of up to 500 feet.

Connect the field wires to the supply air sensor using wire

nuts or closed end style crimp connectors. Do not cut the

sensor leads. Use the full length of lead supplied on the sensor.

In the control box, remove the jacket from the cable. Route

the sensor wires over to the right hand side of the field terminal

block (TB2). Strip the insulation back about 1/4-in. from each

conductor. Connect the two wires to terminals 101 and 102

(SAT) on the terminal board. Polarity is not a consideration.

See Table 11 for resistance vs. temperature values.

FIELD CONNECTION

TB2

_) SAT

(_ ROCC

FSD

@ ALM-GM

@ ALARM

(_ WARN

Fig. 26- Field Terminal Block

TRANS-1 PCB1

CSMUX

Fig. 27 -- Modular Unit VAV Control Panel

TB2

PCB1

Fig. 29 -- Supply/Return Air Temperature

Sensor (PIN HH79NZ043)

Fig. 28 -- Single-Piece Unit VAV Control Panel

Fig. 30 -- Supply-Air Temperature Sensor

Installation (Unit Discharge Location)

Table 11 -- Thermistor Resistance vs Temperature

Values for Supply-Air Temperature Sensor

(10 Kilo- ohm)

TEMP

(c)

-40

-35

-30

-25

-20

-15

-10

-5

TEMP

iF)

-40

-31

-22

-13

-4

104

113

122

131

140

149

158

RESISTANCE

(Ohms)

335,651

242,195

176,683

130,243

96,974

72,895

55,298

42,315

32,651

25,395

19,903

15,714

12,494

10,000

8,056

6,530

5,325

4,367

3,601

2,985

2,487

2,082

1,752

SMOKE DETECTOR/FIRE ALARM SHUTDOWN

(FSD) -- To allow a smoke detector to shut the 50BV down,

remove the jumper from FSD to C and wire these terminals to a

set of normally closed contacts on the smoke detector.

ALARM (ALARM) AND WARN1NG (WARN) OUT-

PUTS -- Two dry contacts output a discrete signal when the

alarm and warning lights on the display are lit. To pick up the

alarm output signal, wire between the ALARM and ALM-CM

terminals. To pick up the warning output signal, wire between

the WARN and ALM-CM terminals.

REMOTE OCCUPANCY (ROCC) -- The 50BV unit may

be colrnnanded by another control system or a twist timer to

become occupied and run when a set of dry contacts close. In

order for this to occur, wire the contacts to ROCC and C and

set the Local/Ol_Remote switch to REMOTE.

RETURN AIR TEMPERATURE SENSOR (RAS) -- The

return!mixed air temperature sensor is a 5 kiloolun temperature

sensor used as the space control point. For every degree that

the RAS is below the set point, the supply air set point will be

reset by the configured value in the custom configured RESET

RATIO. Refer to Table 12 and Fig. 31.

Table 12 -- Thermistor Resistance vs Temperature

Values for Return-Air Temperature

Sensor (5 kiloohm)

TEMP

(c)

-40

-35

-30

-25

-20

-15

-10

-5

TEMP

iF)

-40

-31

-22

-13

-4

104

113

122

131

140

149

158

167

176

RESISTANCE

(Ohms)

167,835

121,098

88,340

65,121

48,487

36,447

27,648

21,157

16,325

12,697

9,952

7,857

6,247

5,000

4,028

3,265

2,662

2,183

1,801

1,493

1,244

1,041

876

740

628

%.25

_0.22

1.25

\\\\\\\\

659

_0.187

(2 HOLES)

NOTE: All dimensions are in inches,

Fig. 31 -- Return Air Temperature Sensor

(PIN HH79NZ079)

Wire the sensor to PCB1 connector J3, terminals 15 and 16.

Change custom configuration as instructed in Configure the

Custom Progralmning Selections section. Changing this con-

figuration to YES changes the EWT input to be used as return

air temperature input.

START-UP

General -- Complete the Start-Up Checklist on page CL-1

before attempting system start-up.

CRANKCASE HEATERS -- The 50BVT,U,V,W, X034-064

units include crankcase heaters. Crankcase heaters are ener-

gized as long as there is power to the unit and the compressor

is not operating.

Wait 24 house" before starting the compressol_" to pelwfit

wan_fing by the crankcase heatet_'.

AFTER 24 horns', continue with the procedures below.

CONFIRM THE INPUT POWER PHASE SEQUENCE --

The input power phase rotation sequence must be L1-L2-L3 =

ABC (or forward or clockwise) as indicated with a phase

rotation meter. Incorrect input phase rotation will cause the com-

pressors to rotate in reverse, which results in no cooling capacity.

IMPORTANT: On VAV units, fan rotation direction

can NOT be used for the phase sequence check; fan

rotation for VAV units with a variable speed drive is

independent of the unit input wiring sequence.

If the compressor is rotating in the wrong direction, it may:

emit increased noise; shut down due to internal overload

protection; have only a small decrease in suction pressure when

it starts; or have only a small increase in discharge pressure

whenit starts.Also,no coolingwill beproducedat the

evaporator.If anyof theseconditionsoccurs,referto the

Servicesectionto correctthecompressorrotationbefore

continuing.

INTERNALWIRING- Checkallelectricalconnectionsin

unitcontrolboxes;tightenasrequired.

RETURN-AIRFILTERS-Checkthatcorrectfiltersare

installedinfiltertracks(seeTables3Aand3B).Donotoperate

unitwithoutreturn-airfilters.

COMPRESSORMOUNT_G-- Compressorsareinternal-

lyspringmounted.Donotloosenorremovecompressorhold-

downbolts.

REFRIGERANTSERVICEPORTS-- Eachrefrigerantsystem

hasatotalof2Schrader-typeservicegageportspercircuit.One

portislocatedonthesuctionline,andoneonthecompressor

dischargeline.Besurethatcapsontheportsaretight.

CV Unit Start-Up

EVAPORATOR FAN- Fan belt and variable pitch motor

pulleys are factory installed. See Tables 13-20 for fan perfor-

mance data. Be sure that fans rotate in the proper direction.

COOLING -- Set the space thermostat to OFF position. Turn

on unit power. Set space thermostat to COOL and the fan to

AUTO. Adjust the thermostat temperature setting below room

temperature. Compressor 1 starts on closure of contactor (com-

pressors 1 and 2 on 4-circuit units with 2-stage thermostat).

Adjust the thermostat to an even lower setting until the ther-

mostat energizes Y2 (the second cooling stage). Compressor 2

starts on closure of contactor (compressors 3 and 4 on &circuit

units with 2-stage thermostat).

Adjust the thermostat temperature to a setting just below

room temperature. The second stage of cooling should turn off.

Set the thermostat temperature above room temperature. All

compressors and the unit fan should now be off.

HEATING (Heat Pump Units Only) -- Follow the same se-

quence as for cooling (above), except set the space thermostat

to HEAT, and instead of adjusting the thermostat below room

temperature, adjust it above. Verify that the compressors turn

on and the unit runs in reverse cycle mode.

Set the thermostat below room temperature and confirm

that the compressors and fan turn off.

Table 13 -- Fan Performance- 50BVC,E,Q020

4500

5000

5500

6000

6500

7000

7500

8000

8500

9000

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

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

))J 638 545 0.61

655 641 0.72 725 755 0.85

608 641 0.72 676 755 0.85 742 878 0,99 807 1001 1,13

636 755 0.85 699 878 0.99 761 1010 1,14 821 1142 1,29

0.87 666 906 1.02 726 1029 1.16 784 1170 1,32 841 1311 1,48

1.03 693 1057 1.19 750 1189 1,34 805 1330 1,50 858 1480 1,67

1.22 723 1226 1,38 777 1377 1,55 829 1526 1,72 880 1676 1,89

1,43 753 1423 1,60 804 1573 1,77 853 1732 1,95 902 1836 2,13

1,67 785 1638 1,84 833 1745 2,02 881 1908 2,21 927 2071 2,40

AIRFLOW AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

(cfm) 1.2 1.4 1.6 1.8

Watts Bhp Rpm Watts Bhp Rpm Watts

5000 l))))))ili)))))i_iiiii)

5500 ))))))))i_i))))))i)_)))i))11)))()))))))))),)i'_)t))))))))))w)

6000 ))))))))i)) )))))))( )))))i)i;;_)ii))J))))])ii;ii)))))O

6500 1283 1,44 ,Y,-,-_)',))J)))!(;;i

7000 1451 1,63 951 1601 1,80

7500 1629 1,83 963 1727 2,00 1014 1881

8000 1781 2,07 979 1935 2,24 1028 2098

8500 1989 2,31 997 2152 2,50 1043 2323

9000 2233 2,59 1018 2404 2,79 1062 2576

LEGEND 2,

Bhp -- Brake Horsepower Input to Supply Fan 3,

Watts -- Input Power to Supply Fan Motor 4,

NOTES:

1. Units are available with the following motor and drive combina-

tions: 1.5, 2, 3, 5 HP standard drive; 1.5, 2, 3 HP medium static

drive.

For 1.5, 2, 3 HP standard drives, the drive range is 753 to

952 rpm. For medium static drives, the drive range is 872 to

1071 rpm. For 5 HP standard drives, the drive range is 967 to

1290 rpm.

2.0

F'pm Bhp

2,81

1134 3,09

1149 3,39

Itafics indicates field-supplied drive required,

Do not operate in shaded area,

Static pressure losses must be applied to external static pres-

sure before entering the fan performance table,

Interpolation is permitted, extrapolation is not,

Fan performance is based on filter, unit casing and wet coil

losses,

Bhp values are per fan, Watts values are per motor. Unit has

2 supply fans and 2 motors,

AIRFLOW

(cfm) 0.2

Bhp

6,000

6,500

7,000 0.87

7,500 634 1.03

8,000 667 1.22

8,500 700 1.43

9,000 735 1.67

9,500 769 1.93

10,000 802 2.21

Table 14 -- Fan Performance -- 50BVC,E,Q024

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

0.4 0.6 0.8

Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp

638 545 0.61

655 641 0.72 725 755 0.85

608 641 0.72 676 755 0.85 742 878 0.99

636 755 0.85 699 878 0.99 761 1010 1.14

666 906 1.02 726 1029 1.16 784 1170 1.32

693 1057 I. 19 750 1189 1.34 805 1330 1.50

723 1226 1.38 777 1377 1.55 829 1526 1.72

753 1423 1.60 804 1573 1.77 853 1732 1.95

785 1638 1.84 833 1745 2.02 881 1908 2.21

816 1827 2.12 863 1989 2.31 908 2152 2.50

848 2080 2.41 892 2251 2.61 936 2422 2.81

1.0

Rpm Wa_s Bhp

807 1001 1.13

821 1142 1.29

841 1311 1.48

858 1480 1.67

880 1676 1.89

902 1836 2.13

927 2071 2.40

952 2323 2.69

978 2624 3.01

AIRFLOW

(cfm) 1.2 1.4 1.6

Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm

5,000

5,500

6,000

6,500 881 1283 1.44

7,000 897 1451 1.63 951 1601 1.80

7,500 911 1629 1.83 963 1727 2.00 1014 1881

8,000 930 1781 2.07 979 1935 2.24 1028 2098 2.43 1076

8,500 950 1989 2.31 997 2152 2.50 1043 2323 2.69 1089

9,000 973 2233 2.59 1018 2404 2.79 1062 2576 2.99 1106

9,500 996 2494 2.89 1039 2697 3.09 1081 2879 3.30 1123

10,000 1020 2806 3.22 1061 2988 3.42 1102 3178 3.64 1142

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

1.8 2.0

Bhp Rpm Bhp

iiiiiiiiHiiiiiiiHii iiiiiiiiiiiiliNiii iiii!i!ili/iiliiiiiiiii!!iiiiii!!iiiiiiiii/iiiiii!iiiii!i!iiiiiiiiiiii/iiii:

iiiiiii!!iiiiii!!iiiiiiii!i{iii/iiiiiiii iiiiiiii!!iiiiii!!iii:iiiii!!iiiiiii/

iiiiiiii/iiiiiiii/i_,i',',iiiii_i;i;:iiii iiiiiiiii/iiiiiii//iiiii!!i;iiiii!i_

iiii!iiiiii/iiiii; iiiiiiiiiiii;iiiiiiii_,_iiiiiii/iiiii

2.62 1124 2.81

2.88 1134 3.09

3.18 1149 3.39

3.51 1165 3.73

3.85 1182 4.08

LEGEND

Bhp -- Brake Horsepower Input to Supply Fan

Watts -- Input Power to Supply Fan Motor

NOTES:

1. Units are available with the following motor and drive combina-

tions: 2, 3, and 5 HP standard drive; 2, 3 HP medium static

drive.

For 2, 3 HP standard drives, the drive range is 753 to 952 rpm.

For medium static drives, the drive range is 872 to 1071 rpm.

For 5 HP standard drives, the drive range is 967 to 1290 rpm.

2. Itafics indicates field-supplied drive required.

3. Do not operate in shaded area.

4. Static pressure losses must be applied to external static pres-

sure before entering the fan performance table.

5. Interpolation is permitted, extrapolation is not.

6. Fan performance is based on filter, unit casing and wet coil

losses.

7. Bhp values are per fan. Watts values are per motor. Unit has

2 supply fans and 2 motors.

Table 15 -- Fan Performance- 50BVC,E,Q028

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

AIRFLOW

(cfm) 0.2 0.4 0.6 0.8 1.0

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

6,250 624 678 0.79 689 797 0.92 753 917 1.06 815 1045 1.21

7,000 604 751 0.87 666 880 1.02 726 999 1.16 784 1136 1.32 841 1273 1.48

7,500 634 889 1.03 693 1027 1.19 750 1155 1.34 805 1291 1.50 858 1437 1.67

8,000 667 1054 1.22 723 1191 1.38 777 1337 1.55 829 1482 1.72 880 1627 1.89

8,500 700 1237 1.43 753 1382 1.60 804 1528 1.77 853 1682 1.95 902 1836 2.13

9,000 735 1437 1.67 785 1591 1.84 833 1745 2.02 881 1908 2.21 927 2071 2.40

9,500 769 1664 1.93 816 1827 2.12 863 1989 2.31 908 2152 2.50 952 2323 2.69

10,000 802 1908 2.21 848 2080 2.41 892 2251 2.61 936 2422 2.81 978 2624 3.01

10,500 835 2179 2.53 879 2350 2.73 921 2531 2.93 963 2742 3.14 1004 2924 3.35

11,000 870 2467 2.86 912 2688 3.08 952 2870 3.29 992 3060 3.51 1032 3251 3.73

11,500 904 2824 3.24 944 3015 3.46 983 3206 3.67 1022 3405 3.90 1060 3605 4.13

12,000 937 3169 3.63 976 3369 3.86 1014 3569 4.09 1051 3777 4.33 1088 3985 4.57

12,500 972 3550 4.07 1010 3759 4.31 1046 3967 4.55 1082 4184 4.80

AIRFLOW

(cfm) 1.2

Rpm Watts Bhp

6,250 877 1173 1.36

7,000 897 1410 1.63

7,500 911 1582 1.83

8,000 930 1781 2.07

8,500 950 1989 2.31

9,000 973 2233 2.59

9,500 996 2494 2.89

10,000 1020 2806 3.22

10,500 1044 3106 3.56

11,000 1070 3451 3.95

11,500 1097 3804 4.36

12,000 1124 4193 4.81

12,500

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

1.4 1.6 1.8

Rpm Watts Bhp Rpm Watts Bhp Rpm Watts

iiiiillliiii 'Yl' iiii!iliiiiii 951iilli ili@ii!iiiiiiiii:ii iiilliiiilli i,; i !iiii!i!iliiii,15551.80

963 1727 2.00 1014 1881 2.18

2.0

Bhp Rpm Watts Bhp

979 1935 2.24 1028 2098 2.43 1076 2260 2.62 1124 2422 2.81

997 2152 2.50 1043 2323 2.69 1089 2485 2.88 1134 2697 3.09

1018 2404 2.79 1062 2576 2.99 1106 2779 3.18 1149 2960 3.39

1039 2697 3.09 1081 2879 3.30 1123 3060 3.51 1165 3251 3.73

1061 2988 3.42 1102 3178 3.64 1142 3360 3.85 1182 3559 4.08

1084 3296 3.78 1123 3496 4.01 1161 3686 4.23 1200 3886 4.45

1109 3641 4.17 1146 3840 4.40 1184 4049 4.64 1220 4248 4.87

1134 4012 4.60 1170 4221 4.84 1206 -- --

LEGEND

Bhp -- Brake Horsepower Input to Supply Fan

Watts -- Input Power to Supply Fan Motor

NOTES:

1. Units are available with 3 or 5 HP standard drive or 3 HP

medium static drive.

For 3 HP standard drives, the drive range is 753 to 952 rpm.

For medium static drives, the drive range is 872 to 1071 rpm. 5

HP standard drives have drive range of 967 to 1290 rpm.

2. Itafics indicates field-supplied drive required.

3. Do not operate in shaded area.

4. Static pressure losses must be applied to external static pres-

sure before entering the fan performance table.

5. Interpolation is permitted, extrapolation is not.

6. Fan performance is based on filter, unit casing and wet coil

losses.

7. Bhp values are per fan. Watts values are per motor. Unit has

2 supply fans and 2 motors.

AIRFLOW

(cfm) Rpm

9,000 639

9,500 665

10,000 693

10,500 721

11,000 749

11,500 777

12,000 805

12,500 835

13,000 865

13,500 894

14,000 924

Table 16 -- Fan Performance- 50BVC,E,Q034

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

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

1187 1.36 693 1334 1.53 745 1490 1.71 795 1646 1.89 843 1802 2.07

1362 1.56 717 1518 1.74 766 1674 1.92 814 1839 2.11 861 2004 2.30

1555 1.78 743 1720 1.97 791 1894 2.17 836 2058 2.36 881 2232 2.56

1775 2.03 769 1949 2.23 815 2122 2.43 859 2296 2.63 902 2478 2.84

2004 2.30 795 2186 2.51 840 2369 2.71 882 2551 2.92 924 2742 3.14

2259 2.59 822 2451 2.81 864 2642 3.03 906 2833 3.25 946 3024 3.47

2533 2.90 848 2733 3.13 889 2933 3.36 929 3133 3.59 968 3333 3.82

2842 3.26 877 3042 3.49 917 3251 3.73 955 3460 3.97 993 3668 4.20

3169 3.63 905 3378 3.87 944 3596 4.12 981 3813 4.37 1018 4021 4.61

3514 4.03 933 3741 4.29 971 3958 4.54 1007 4184 4.80

3895 4.46 961 4121 4.72 998 4356 4.99

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

AIRFLOW

(cfm) 1.2 1.4 1.6 1.8 2.0

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

9,000 890 1958 2.24 936 2122 2.43 982 2296 2.63 1026 2460 2.82 1071 2642 3.03

9,500 906 2168 2.48 950 2341 2.68 994 2515 2.88 1037 2688 3.08 1079 2870 3.29

10,000 925 2405 2.76 967 2578 2.96 1009 2760 3.16 1051 2942 3.37 1092 3124 3.58

10,500 944 2660 3.05 986 2842 3.26 1026 3024 3.47 1066 3215 3.68 1105 3405 3.90

11,000 965 2924 3.35 1004 3115 3.57 1043 3315 3.80 1082 3505 4.02 1120 3705 4.25

11,500 985 3224 3.69 1024 3414 3.91 1062 3614 4.14 1099 3813 4.37 1136 4021 4.61

12,000 1006 3532 4.05 1044 3732 4.28 1080 3940 4.52 1117 4148 4.75 1152 4356 4.99

12,500 1030 3877 4,44 1066 4085 4,68 1102 4302 4,93 i_I_ _I_ i_I _ _I_ I i_

13,000 1053 4239 4.86

14,000 ................

LEGEND

Bhp -- Brake Horsepower Input to Supply Fan

Watts -- Input Power to Supply Fan Motor

NOTES:

1. Unit is available with 5 HP standard drive only. The drive range

is 967 to 1290 rpm.

2. Italics indicates field-supplied drive required.

3. Do not operate in shaded area.

4. Static pressure losses must be applied to external static pres-

sure before entering the fan performance table.

5. Interpolation is permitted, extrapolation is not.

6. Fan performance is based on filter, unit casing and wet coil

losses.

7. Bhp values are per fan. Watts values are per motor. Unit has

2 supply fans and 2 motors.

AIRFLOW

(cfm)

9,000

9,500

10,000

10,500

11,000

11,500

12,000

12,500

13,000

13,500

14,000

14,500

15,000

0.2

Rpm Watts Bhp

564 3,167 3. 76

590 3,666 4.35

617 4,226 5.01

643 4,820 5.72

669 5,503 6.53

696 6,236 7.40

722 6,952 8.34

750 7,816 9.38

777 8,595 10.49

804 9,572 11.68

832 10,634 12.97

859 11,747 14.33

886 12,953 15.80

Table 17 -- Fan Performance -- 50BVT,U,V034

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

0.4 0.6 0.8 1.0

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

605 3,483 4.13 645 3,798 4.51 683 4,112 4.88 718 4,392 5.21

629 3,999 4.74 667 4,331 5.14 704 4,671 5.54 738 4,977 5.90

655 4,584 5.44 691 4,933 5.85 726 5,282 6.27 761 5,654 6.71

678 5,194 6.16 713 5,583 6.62 747 5,963 7.07 780 6,263 7.51

704 5,901 7.00 737 6,298 7.47 770 6,612 7.93 802 7,005 8.40

729 6,577 7.89 761 6,987 8.38 792 7,388 8.86 823 7,798 9.36

754 7,380 8.85 784 7,798 9.36 815 8,225 9.87 845 8,510 10.38

780 8,260 9.91 810 8,561 10.44 839 8,990 10.97 868 9,427 11.50

806 9,050 11.04 835 9,504 11.59 863 9,949 12.14 891 10,403 12.69

832 10,043 12.25 860 10,514 12.83 887 10,985 13.40 914 11,447 13.96

859 11,122 13.57 886 11,610 14.16 912 12,097 14.76 938 12,585 15.35

885 12,217 14.90 911 12,756 15.56 936 13,260 16.18 962 13,765 16.79

911 13,474 16.44 936 13,996 17.07 961 14,517 17.71 986 15,038 18.34

AIRFLOW

(cfm)

9,000

9,500

10,000

10,500

11,000

11,500

12,000

12,500

13,000

13,500

14,000

14,500

15,000

1.2

Rpm Watts Bhp

751 4,663 5.53

771 5,264 6.25

792 5,963 7.07

812 6,603 7.92

833 7,388 8.86

854 8,199 9.84

874 8,921 10.88

896 9,855 12.02

919 10,857 13.24

941 11,918 14.54

964 13,064 15.94

987 14,269 17.41

1010 15,560 18.98

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

1.4 1.6 1.8 2.0

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

785 4,933 5.85 817 5,212 6.18 849 5,512 6.54 881 5,804 6.89

802 5,574 6.61 834 5,866 6.96 864 6,166 7.31 895 6,394 7.67

822 6,272 7.44 852 6,498 7.80 882 6,804 8.16 911 7,118 8.54

841 6,926 8.31 870 7,240 8.69 899 7,563 9.07 927 7,885 9.46

861 7,720 9.26 889 8,051 9.66 917 8,253 10.07 944 8,578 10.46

882 8,441 10.30 909 8,784 10.72 936 9,127 11.13 962 9,469 11.55

903 9,332 11.38 930 9,701 11.83 955 10,060 12.27 981 10,420 12.71

924 10,283 12.54 951 10,702 13.06 976 11,079 13.51 1001 11,456 13.97

945 11,302 13.79 972 11,747 14.33 997 12,166 14.84 1022 12,551 15.31

967 12,380 15.10 993 12,850 15.67 1018 13,303 16.23 1042 13,722 16.74

990 13,551 16.53 1015 14,030 17.11 1040 14,517 17.71 1064 14,979 18.27

1011 14,765 18.01 1036 15,261 18.62 1060 15,765 19.23 1084 16,260 19.83

1034 16,081 19.62 _ _ _ _ _ _ _ _ _

LEGEND

Bhp -- Brake Horsepower Input to Supply Fan

Watts -- Input Power to Supply Fan Motor

NOTES:

1. Unit is available with the following motor and drive combina-

tions: 7.5, 10, 15, 20 HP standard drive; 7.5, 10, 15, 20 HP

medium-static drive; 7.5, 10, 15, 20 HP high-static drive.

For 7.5 HP standard drives, the drive range is 780 to 960 rpm.

For 10, 15, 20 HP standard and 7.5 HP medium-static drives,

the drive range is 805 to 991 rpm. For 10, 15, 20 HP

medium-static and 7.5 HP high-static drives the drive range is

960 to 1146 rpm. For 10, 15, 20 HP high-static drives the drive

range is 1119 to 1335 rpm.

2. Italics indicates field-supplied drive required.

3. Do not operate in shaded area.

4. Static pressure losses must be applied to external static pres-

sure before entering the fan performance table.

5. Interpolation is permitted, extrapolation is not.

6. Fan performance is based on filter, unit casing and wet coil

losses.

7. This unit has one supply fan and one fan motor.

AIRFLOW

(cfm) 2.2

Rpm Watts Bhp

9,000 912 6,095 7.23

9,500 925 6,690 8.03

10,000 940 7,423 8.91

10,500 955 8,199 9.84

11,000 971 8,913 10.87

11,500 988 9,812 11.97

12,000 1006 10,771 13.14

12,500 1025 11,824 14.42

13,000 1045 12,936 15.78

13,500 1065 14,124 17.23

14,000 1086 15,397 18.78

14,500

15,000

Table 17 -- Fan Performance -- 50BVT, U,V034 (cont)

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

2.4 2.6 2.8 3.0

Rpm Wa_s Bhp Rpm Wa_s Bhp Rpm Wa_s Bhp Rpm Wa_s Bhp

943 6,324 7.59 974 6,629 7.95 1005 6,943 8.33 1035 7,266 8.72

955 6,996 8.39 984 7,310 8.77 1013 7,624 9.15 1042 7,955 9.54

969 7,746 9.29 997 8,060 9.67 1025 8,253 10.07 1053 8,578 10.46

982 8,390 10.23 1010 8,715 10.63 1037 9,041 11.03 1063 9,375 11.44

998 9,238 11.27 1024 9,572 11.68 1050 9,915 12.09 1076 10,257 12.51

1014 10,155 12.39 1040 10,506 12.82 1065 10,848 13.23 1090 11,207 13.67

1031 11,130 13.58 1056 11,490 14.02 1080 11,849 14.45 1104 12,217 14.90

1050 12,191 14.87 1074 12,568 15.33 1097 12,944 15.79 1121 13,320 16.25

1069 13,320 16.25 1092 13,714 16.73 1115 14,098 17.20 1138 14,492 17.68

1088 14,526 17.72 1110 14,927 18.21 1133 15,329 18.70 1155 15,731 19.19

1108 15,816 19.29 1131 16,235 19.80 iiiiiiiiiiiiii!:iiii_iiiiii:!iiiiiiiiiiiiiiiiiiii!:iiii_iiiiiiiliiiiiiiiiiiiii!:iiii_iiiiii:!iiiiiiiiiiiiiiiiiii!:iiii_iiiiiiiliiiiiiiiiiiii!:iiii_iiiiii:!iiii_iiiiiiiiiiiiiii!:iiii_iiiiWiiiiiiii

AIRFLOW

(cfm) 3.2

Rpm Watts Bhp

9,000 1065 7,606 9.13

9,500 1071 8,286 9.94

10,000 1081 8,904 10.86

10,500 1090 9,718 11.85

11,000 1102 10,608 12.94

11,500 1115 11,558 14.10

12,000 1128 12,585 15.35

12,500 1144 13,697 16.71

13,000 1160 14,876 18.15

13,500 1177 16,132 19.68

14,ooo

14,500

15,000

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

3.4 3.6 3.8 4.0

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

1095 7,946 9.53

1100 8,493 10.36 1128 8,835 10.78 1157 9,195 11.22 1185 9,564 11.67

1108 9,247 11.28 1136 9,598 11.71 1163 9,958 12.15 1190 10,326 12.60

1116 10,060 12.27 1143 10,411 12.70 1169 10,771 13.14 1195 11,139 13.59

1127 10,959 13.37 1153 11,319 13.81 1178 11,678 14.25 1203 12,046 14.69

1139 11,918 14.54 1164 12,286 14.99 1188 12,653 15.43 1212 13,038 15.90

1152 12,953 15.80 1176 13,329 16.26 1200 13,705 16.72 1223 14,090 17.19

1167 14,073 17.17 1190 14,457 17.64 1213 14,850 18.12 1236 15,235 18.58

1183 15,269 18.63 1205 15,662 19.11 1227 16,064 19.60 @::_

i i i i i i i i

LEGEND

Bhp -- Brake Horsepower Input to Supply Fan

Watts -- Input Power to Supply Fan Motor

NOTES:

1. Unit is available with the following motor and drive combina-

tions: 7.5, 10, 15, 20 HP standard drive; 7.5, 10, 15, 20 HP

medium-static drive; 7.5, 10, 15, 20 HP high-static drive.

For 7.5 HP standard drives, the drive range is 780 to 960 rpm.

For 10, 15, 20 HP standard and 7.5 HP medium-static drives,

the drive range is 805 to 991 rpm. For 10, 15, 20 HP

medium-static and 7.5 HP high-static drives the drive range is

960 to 1146 rpm. For 10, 15, 20 HP high-static drives the drive

range is 1119 to 1335 rpm.

2. Italics indicates field-supplied drive required.

3. Do not operate in shaded area.

4. Static pressure losses must be applied to external static pres-

sure before entering the fan performance table.

5. Interpolation is permitted, extrapolation is not.

6. Fan performance is based on filter, unit casing and wet coil

losses.

7. This unit has one supply fan and one fan motor.

AIRFLOW

(cfm)

12,000

12,500

13,000

13,500

14,000

14,500

15,000

16,000

17,000

17,500

18,000

19,000

19,500

0.2

Rpm Watts Bhp

403 1057 1.25

413 1173 1.39

423 1280 1.52

436 1422 1.69

446 1546 1.83

459 1706 2. 02

469 1847 2.19

495 2200 2.61

518 2570 3.05

531 2781 3.30

543 3001 3.56

568 3474 4.12

580 3728 4.42

Table 18 -- Fan Performance -- 50BVT,U,V044

AVAILABLE EXTERNAL STATIC PRESSURE(in. wg)

0.4 0.6 0.8

Rpm Wa_s Bhp Rpm Wa_s Bhp Rpm Wa_s

461 1271 1.51 512 1458 1.73 561 1644

470 1395 1.66 519 1591 1.89 567 1785

478 1520 1.80 527 1723 _04 573 1927

489 1661 1.97 537 1883 _23 582 2086

498 1803 _14 546 2033 _41 589 2253

509 1962 _33 557 2209 _62 599 2438

518 2121 _52 565 2385 _83 607 2614

541 2482 _94 585 2772 3.29 627 3036

562 2878 3.41 604 3176 3.77 645 3474

573 3097 3.67 614 3404 4.04 654 3710

584 3325 3.94 625 3640 4.32 664 3955

607 3815 4.53 646 4147 4.92 684 4488

619 4077 4.84 657 4418 _24 693 4767

1.0

Bhp Rpm Watts Bhp

1.95 608 1838 2.18

2.12 613 1980 2.35

2.29 618 2130 2.53

2.47 626 2297 2.73

2.67 632 2465 2.92

2.89 640 2658 3.15

3.10 647 2843 3.37

3.60 665 3272 3.88

4.12 681 3736 4.43

4.40 691 3990 4.73

4.69 700 4252 5.04

5.32 720 4820 5.72

5.66 729 5107 6.06

AIRFLOW

(cfm) 1.2

Rpm Wa_s Bhp Rpm

12,000 654 2042 _42 700

12,500 657 2183 _59 702

13,000 661 2341 _78 704

13,500 668 2517 _99 709

14,000 673 2693 3.19 713

14,500 680 2886 3.42 719

15,000 686 3079 3.65 724

16,000 702 3518 4.17 739

17,000 717 3990 4.73 752

17,500 726 4252 _04 760

18,000 735 4523 _37 768

19,000 753 5107 &06 785

19,500 762 5433 &45 794

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

1.4 1.6 1.8

Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm

2561240322622.852"683.04746745 27902640 3.313"13 _ t_I;

2737 3.25 750 2974 3.53 791 3220 3,82

2913 3.46 753 3150 3.74 792 3395 4,03

2.0

Watts Bhp

iiiiiii/iiiiiiiii_i!!iiii_iiiiii

3115 3.69 758 3351 3.98 796 3605 4,28 834 3859 4,33

3316 3.93 762 3553 4.21 799 3806 4,52 836 4069 4,57

3771 4.47 774 4016 4.76 810 4278 5,08 844 4540 5,11

4252 _04 786 4514 5,36 820 4785 5,68 853 5055 5,70

4523 _37 794 4793 5,69 827 5064 6,01 859 5353 6,02

4802 _70 801 5072 6,02 833 5371 6,37 865 5662 6,37

5415 6,42 816 5707 6,77 848 5998 7,12 878 6298 7,09

5733 6,80 825 6033 7,16 855 6263 7,51 885 6568 7,48

AIRFLOW

(cfm)

12,000

12,500

13,000

13,500

14,000

14,500

15,000

16,000

17,000

17,500

18,000

19,000

19,500

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

2.2 2.4 2.6 2.8 3.0

Bhp

7,81

8,15

8,53

9,32

9,75

LEGEND

Bhp -- Brake Horsepower Input to Supply Fan

Watts -- Input Power to Supply Fan Motor

NOTES:

1. Unit is available with the following motor and drive com-

binations: 7.5, 10, 15 HP standard drive; 7.5, 10, 15 HP

medium-static drive; 7.5, 10, 15 HP high-static drive.

For 7.5 HP standard drives, the drive range is 780 to 960 rpm.

For 10, 15 HP standard and 7.5 HP medium-static drives, the

drive range is 805 to 991 rpm. For 10, 15 HP medium-static and

7.5 HP high-static drives the drive range is 960 to 1146 rpm.

For 10, 15 HP high-static drives the drive range is 1119 to

1335 rpm.

2, Itafics indicates field-supplied drive required.

3, Do not operate in shaded area,

4, Static pressure losses must be applied to external static pres-

sure before entering the fan performance table.

5. Interpolation is permitted, extrapolation is not.

6. Fan performance is based on filter, unit casing and wet coil

losses,

7. Bhp values are per fan. Watts values are per motor, Unit has

2 supply fans and 2 motors.

AIRFLOW

(cfm)

15,000

16,000

17,000

18,000

18,500

19,000

19,500

20,000

20,500

21,000

22,000

23,000

24,000

Table 19 -- Fan Performance -- 50BVT,U,V054

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

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

489 1953 2.32 537 2227 2.64 582 2473 2.93 623 2711 3.22 663 2939 3.49

513 2315 2.75 559 2596 3.08 603 2878 3.41 642 3132 3.72 680 3369 4.00

540 2728 3.24 583 3027 3.59 624 3325 3.94 663 3605 4.28 699 3868 4.59

564 3167 3.76 605 3483 4.13 645 3798 4.51 683 4112 4.88 718 4392 5.21

578 3413 4.05 618 3745 4.44 657 4069 4.83 694 4392 5.21 729 4680 5.55

590 3666 4.35 629 3999 4.74 667 4331 5.14 704 4671 5.54 738 4977 5.90

604 3938 4.67 642 4278 5.08 679 4628 5.49 715 4968 5.89 749 5299 6.29

617 4226 5.01 655 4584 5.44 691 4933 5.85 726 5282 6.27 761 5654 6.71

629 4505 5.34 665 4872 5.78 701 5238 6.21 736 5618 6.67 770 5980 7.09

643 4820 5.72 678 5194 6.16 713 5583 6.62 747 5963 7.07 780 6263 7.51

669 5503 6.53 704 5901 7.00 737 6298 7.47 770 6612 7.93 802 7005 8.40

696 6236 7.40 729 6577 7.89 761 6987 8.38 792 7388 8.86 823 7798 9.36

722 6952 8.34 754 7380 8.85 784 7798 9.36 815 8225 9.87 845 8510 10.38

AIRFLOW

(cfm)

15,000

16,000

17,000

18,000

18,500

19,000

19,500

20,000

20,500

21,000

22,000

23,000

24,000

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

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

701 3167 3.76 739 3413 4.05 777 3658 4.34 814 3,911 4.64 850 4,174 4.95

717 3623 4.30 753 3868 4.59 789 4121 4.89 824 4,383 5.20 858 4,654 5.52

734 4121 4.89 769 4383 5.20 803 4645 5.51 837 4,915 5.83 870 5,194 6.16

751 4663 5.53 785 4933 5.85 817 5212 6.18 849 5,512 6.54 881 5,804 6.89

762 4968 5.89 794 5247 6.22 826 5548 6.58 857 5,839 6.93 889 6,130 7.27

771 5264 6.25 802 5574 6.61 834 5866 6.96 864 6,166 7.31 895 6,394 7.67

781 5618 6.67 812 5919 7.02 843 6219 7.38 873 6,446 7.73 903 6,743 8.09

792 5963 7.07 822 6272 7.44 852 6498 7.80 882 6,804 8.16 911 7,118 8.54

801 6307 7.48 831 6542 7.85 860 6856 8.23 890 7,170 8.60 918 7,484 8.98

812 6603 7.92 841 6926 8.31 870 7240 8.69 899 7,563 9.07 927 7,885 9.46

833 7388 8.86 861 7720 9.26 889 8051 9.66 917 8,253 10.07 944 8,578 10.46

854 8199 9.84 882 8441 10.30 909 8784 10.72 936 9,127 11.13 962 9,469 11.55

874 8921 10.88 903 9332 11.38 930 9701 11.83 955 10,060 12.27 981 10,420 12.71

LEGEND

Bhp -- Brake Horsepower Input to Supply Fan

Watts -- Input Power to Supply Fan Motor

NOTES:

1. Unit is available with the following motor and drive com-

binations: 7.5, 10, 15, 20 HP standard drive; 7.5, 10, 15, 20 HP

medium-static drive; 7.5, 10, 15, 20 HP high-static drive.

For 7.5 HP standard drives, the drive range is 780 to 960 rpm.

For 10, 15, 20 HP standard and 7.5 HP medium-static drives,

the drive range is 805 to 991 rpm. For 10, 15, 20 HP medium-

static and 7.5 HP high-static drives the drive range is 960 to

1146 rpm. For 10, 15, 20 HP high-static drives the drive range

is 1119 to 1335 rpm.

2. Itafics indicates field-supplied drive required.

3. Do not operate in shaded area.

4. Static pressure losses must be applied to external static pres-

sure before entering the fan performance table.

5. Interpolation is permitted, extrapolation is not.

6. Fan performance is based on filter, unit casing and wet coil

losses.

7. Bhp values are per fan. Watts values are per motor, Unit has

2 supply fans and 2 motors.

Table 19 -- Fan Performance -- 50BVT, U,V054 (cont)

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

AIRFLOW

(cfm) 2.2 2.4 2.6 2.8 3.0

Rpm Wa_s Bhp Rpm Wa_s Bhp Rpm Wa_s Bhp Rpm Wa_s Bhp Rpm Wa_s Bhp

15,000 886 4,444 5.27 922 4,741 5.62 958 5,046 5.99 993 5,380 6.38

16,000 893 4,924 5.84 927 5,212 6.18 961 5,539 6.57 994 5,857 6.95

17,000 903 5,495 6.52 935 5,795 6.87 967 6,095 7.23 999 6,341 7.61 1031 6,664 8.00

18,000 912 6,095 7.23 943 6,324 7.59 974 6,629 7.95 1005 6,943 8.33 1035 7,266 8.72

18,500 919 6,359 7.63 950 6,664 8.00 980 6,970 8.36 1010 7,284 8.74 1039 7,606 9.13

19,000 925 6,690 8.03 955 6,996 8.39 984 7,310 8.77 1013 7,624 9.15 1042 7,955 9.54

19,500 932 7,048 8.46 962 7,362 8.83 991 7,676 9.21 1019 7,999 9.60 1047 8,330 9.99

20,000 940 7,423 8.91 969 7,746 9.29 997 8,060 9.67 1025 8,253 10.07 1053 8,578 10.46

20,500 946 7,798 9.36 975 8,121 9.74 1003 8,304 10.13 1030 8,630 10.53 1057 8,955 10.92

21,000 955 8,199 9.84 982 8,390 10.23 1010 8,715 10.63 1037 9,041 11.03 1063 9,375 11.44

22,000 971 8,913 10.87 998 9,238 11.27 1024 9,572 11.68 1050 9,915 12.09 1076 10,257 12.51

23,000 988 9,812 11.97 1014 10,155 12.39 1040 10,506 12.82 1065 10,848 13.23 1090 11,207 13.67

24,000 1006 10,771 13.14 1031 11,130 13.58 1056 11,490 14.02 1080 11,849 14.45 1104 12,217 14.90

AIRFLOW

(cfm)

15,000

16,000

17,000

18,000

18,500

19,000

19,500

20,000

20,500

21,000

22,000

23,000

24,000

AVAILABLEEXTERNALSTATICPRESSURE(in. wg)

3.4 3.6 3.8

Bhp

11.67

12.12

12.60

13.07

13.59

14.69

15.90

17.19

LEGEND

Bhp -- Brake Horsepower Input to Supply Fan

Watts -- Input Power to Supply Fan Motor

NOTES:

1. Unit is available with the following motor and drive combina-

tions: 7.5, 10, 15, 20 HP standard drive; 7.5, 10, 15, 20 HP

medium-static drive; 7.5, 10, 15, 20 HP high-static drive.

For 7.5 HP standard drives, the drive range is 780 to 960 rpm.

For 10, 15, 20 HP standard and 7.5 HP medium-static drives,

the drive range is 805 to 991 rpm. For 10, 15, 20 HP medium-

static and 7.5 HP high-static drives the drive range is 960 to

1146 rpm. For 10, 15, 20 HP high-static drives the drive range

is 1119 to 1335 rpm.

2. Italics indicates field-supplied drive required.

3. Do not operate in shaded area.

4. Static pressure losses must be applied to external static pres-

sure before entering the fan performance table.

5. Interpolation is permitted, extrapolation is not.

6. Fan performance is based on filter, unit casing and wet coil

losses.

7. Bhp values are per fan. Watts values are per motor. Unit has

2 supply fans and 2 motors.

AIRFLOW

(cfm)

18,000

19,000

20,000

21,000

22,000

23,000

24,000

25,000

26,000

27,000

28,000

29,000

0.2

Rpm Watts Bhp

564 3,167 3.76

590 3, 666 4.35

617 4,226 5.01

643 4,820 5.72

669 5,503 6.53

696 6,236 7.40

722 6,952 8.34

750 7,816 9.38

777 8,595 10.49

804 9,572 11.68

832 10,634 12.97

859 11,747 14.33

Table 20 -- Fan Performance -- 50BVT,U,V064

AVAILABLE EXTERNAL STATIC

0.4 0.6

Rpm Watts Bhp Rpm Watts

605 3,483 4.13 645 3,798

629 3,999 4. 74 667 4,331

655 4,584 5.44 691 4,933

678 5,194 6.16 713 5,583

704 5,901 7.00 737 6,298

729 6,577 7.89 761 6,987

754 7,380 8.85 784 7,798

780 8,260 9.91 810 8,561

806 9,050 11.04 835 9,504

832 10,043 12.25 860 10,514

859 11,122 13.57 886 11,610

885 12,251 14.94 911 12,756

PRESSURE (in. wg)

0.8 1.0

Bhp Rpm Watts Bhp Rpm Watts Bhp

4.51 683 4,112 4.88 718 4,392 5.21

5.14 704 4,671 5.54 738 4,977 5.90

5.85 726 5,282 6.27 761 5,654 6.71

6.62 747 5,963 7.07 780 6,263 7.51

7.47 770 6,612 7.93 802 7,005 8.40

8.38 792 7,388 8.86 823 7,798 9.36

9.36 815 8,225 9.87 845 8,510 10.38

10.44 839 8,990 10.97 868 9,427 11.50

11.59 863 9,949 12.14 891 10,403 12.69

12.83 887 10,985 13.40 914 11,447 13.96

14.16 912 12,097 14.76 938 12,585 15.35

15.56 936 13,260 16.18 962 13,765 16.79

AIRFLOW

(cfm)

18,000

19,000

20,000

21,000

22,000

23,000

24,000

25,000

26,000

27,000

28,000

29,000

1.2

Rpm Watts Bhp

751 4,663 5.53

771 5,264 6.25

792 5,963 7.07

812 6,603 7.92

833 7,388 8.86

854 8,199 9.84

874 8,921 10.88

896 9,855 12.02

919 10,857 13.24

941 11,918 14.54

964 13,064 15.94

987 14,269 17.41

AVAILABLE EXTERNAL STATIC

1.4 1.6

Rpm Watts Bhp Rpm Wa_s

785 4,933 5.85 817 5,212

802 5,574 6.61 834 5,866

822 6,272 7.44 852 6,498

841 6,926 8.31 870 7,240

861 7,720 9.26 889 8,051

882 8,441 10.30 909 8,784

903 9,332 11.38 930 9,701

924 10,283 12.54 951 10,702

945 11,302 13.79 972 11,747

967 12,380 15.10 993 12,850

990 13,551 16.53 1015 14,030

1011 14,765 18.01 1036 15,261

PRESSURE (in. wg)

1.8 2.0

Bhp Rpm Watts Bhp Rpm Watts Bhp

6.18 849 5,512 6.54 881 5,804 6.89

6.96 864 6,166 7.31 895 6,394 7.67

7.80 882 6,804 8.16 911 7,118 8.54

8.69 899 7,563 9.07 927 7,885 9.46

9.66 917 8,253 10.07 944 8,578 10.46

10.72 936 9,127 11.13 962 9,469 11.55

11.83 955 10,060 12.27 981 10,420 12.71

13.06 976 11,079 13.51 1001 11,456 13.97

14.33 997 12,166 14.84 1022 12,551 15.31

15.67 1018 13,303 16.23 1042 13,722 16.74

17.11 1040 14,517 17.71 1064 14,979 18.27

18.62 1060 15,765 19.23 1084 16,260 19.83

LEGEND

Bhp -- Brake Horsepower Input to Supply Fan

Watts -- Input Power to Supply Fan Motor

NOTES:

1. Unit is available with the following motor and drive combina-

tions: 7.5, 10, 15, 20 HP standard drive; 7.5, 10, 15, 20 HP

medium-static drive; 7.5, 10, 15, 20 HP high-static drive.

For 7.5 HP standard drives, the drive range is 780 to 960 rpm.

For 10, 15, 20 HP standard and 7.5 HP medium-static drives,

the drive range is 805 to 991 rpm. For 10, 15, 20 HP medium-

static and 7.5 HP high-static drives the drive range is 960 to

1146 rpm. For 10, 15, 20 HP high-static drives the drive range

is 1119 to 1335 rpm.

2. Itafics indicates field-supplied drive required.

3. Do not operate in shaded area.

4. Static pressure losses must be applied to external static pres-

sure before entering the fan performance table.

5. Interpolation is permitted, extrapolation is not.

6. Fan performance is based on filter, unit casing and wet coil

losses.

7. Bhp values are per fan. Watts values are per motor, Unit has

2 supply fans and 2 motors.

AIRFLOW

(cfm) 2.2

Rpm Watts Bhp

18,000 912 6,095 7.23

19,000 925 6,690 8.03

20,000 940 7,423 8.91

21,000 955 8,199 9.84

22,000 971 8,913 10.87

23,000 988 9,812 11.97

24,000 1006 10,771 13.14

25,000 1025 11,824 14.42

26,000 1045 12,936 15.78

27,000 1065 14,124 17.23

28,000 1086 15,397 18.78

29,000 ,,,_ ,,,

Table 20 -- Fan Performance -- 50BVT, U,V064 (cont)

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

2.4 2.6 2.8 3.0

Rpm Wals Bhp Rpm Wals Bhp Rpm Wals Bhp Rpm Wals Bhp