50JB-1SB
50JB034, 038, 044, 048, 054, 064
HORIZONTAL SUPPLY AND RETURN
SINGLE-PACKAGE COOLING UNITS
EXTENDED CHASSIS
CONSTANT VOLUME/VARIABLE VOLUME
PRODUCT INTEGRATED CONTROLS
CARRIER COMFORT NETWORK COMPATIBLE
— PERFORMANCE DATA
— TYPICAL FIELD WIRING
— CERTIFIED DIMENSION PRINTS
— CERTIFIED ROOF CURB
DIMENSION PRINTS
1997 Carrier Corporation • Syracuse, New York 13221
Form 50JB-1SB New
Printed in U.S.A.
12-97
Catalog No. 515-074
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UNIT FEATURES
Large hinged access doors.
High efficiency indoor motors (supply and exhaust).
Standard one-year product warranty.
Standard unit as factory-assembled is listed by ETL and/or ETL,
Canada.
Units are rated in accordance with ARI Standard 360.
115-volt and 24-volt control circuit.
Semi-hermetic Carrier compressors.
Tuff-Skin Rx anti-microbial insulation.
Sloped condensate pan.
Manual adjustable outside air intake for up to 25% outside air.
Cabinet made of prepainted galvanized steel.
Evaporator-fan motors are protected by circuit breakers.
Condenser-fan motors are internally protected.
Single-point electric service entry.
Crankcase heaters.
Circuit breaker protection for all power components.
Compressor protection includes high and low pressure cutouts.
Dual refrigeration circuits.
Lifting lugs.
Single low rpm supply fan with 2-in. deflection springs under fan
sled.
Two-inch disposable-type return air filters.
PERFORMANCE DATA
Unit Operating Weight
Indoor Entering Air db
lb
F
Cfm
External Static Pressure
in. wg
lb
F
wb
Curb Weight
COOLING
HEATING
Gross Total Cap.
Btuh @ Condenser Air Temp
F
Btuh
kW
Hp
NO UNIT MOUNTED HEAT AVAILABLE
Gross Sensible Capacity
Compressor Power Input
Indoor Fan Motor Size
Return Fan Motor Size
Hp
ELECTRICAL DATA
Power Supply to Unit
Volts
Phase
Hertz
Minimum Circuit Amps
Maximum Fuse Amps
OPTIONS AND ACCESSORIES
FACTORY-INSTALLED OPTIONS
FIELD-INSTALLED ACCESSORIES
Ⅺ Control Option Module
Ⅺ Two-inch Pleated Filters (30%)
Ⅺ Bag Filters with Prefilters (90%)
Ⅺ Inlet Guide Vanes or Variable Frequency Drives
Ⅺ Alternate Motor and Drive
Ⅺ Roof Curb with Full Perimeter Support (30, 35, 40, 45 ton)
Ⅺ Roof Curb with Condenser and Support (50, 60 ton)
Ⅺ Roof Curb to Enclose the Condenser Section (50, 60 ton)
Ⅺ Outdoor Air Cfm Package
Ⅺ Local Interface Device
Ⅺ Premium-Efficiency Motor and Drive (208/230, 460v)
Ⅺ Differential Enthalpy Control Sensor
Ⅺ Alternate Premium-Efficiency Motor and Drive
Ⅺ Condenser Coil Guard
Ⅺ Space Sensor with Set Point Adjustment
Ⅺ Optional 4-Year Extended Compressor Warranty
(208/230, 460v)
Ⅺ Economizer with Low Leak Dampers and Spring Return Motor
Ⅺ Copper Condenser Coil
Ⅺ Hot Gas Bypass
x
Ⅺ HSIO Keypad and Display Module (required for initial start-up)
Ⅺ
Ⅺ
Ⅺ
Ⅺ Non-Fused Unit Disconnect
3
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TYPICAL FIELD WIRING
FIELD POWER WIRING CONNECTIONS
11
21
22
23
12
13
DISCONNECT PER NEC
EQUIP GND
FIELD CONTROL WIRING
TYPICAL SPACE TEMPERATURE SENSOR WIRING
Field Wiring
CCN COMMUNICATIONS BUS WIRING TO OPTIONAL SPACE SENSOR RJ11 CONNECTOR
CCN
COM
GND
SW
T
—
—
—
—
—
—
—
Thermostat, Heating
TB
TH
*Constant Volume applications only.
4
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CUT ALONG DOTTED LINE
CUT ALONG DOTTED LINE
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CERTIFIED DIMENSION PRINT
NOTES:
1. Dimensions in [ ] are in millimeters.
2.
Center of Gravity includes economizer. Unit weight does
not include economizer or heating coil.
WEIGHT
lb kg
A
3. Unit clearances:
UNIT
SIZE
Top — Do not restrict condenser fans
Control Box End — 6Ј-0Љ
mm
ft-in.
50JB034 6470 2934 4418 14-515⁄16
50JB038 6595 2991 4474 14-81⁄8
Sides — 6Ј-0Љ
Economizer End — 6Ј-0Љ (except power exhaust units 10Ј-0Љ)
For smaller service and operating clearances, contact Carrier
Application Engineering Department.
4. Suggested field connections to be made inside or outside of
2.28 in. (32.5 mm) flange.
5. When the unit is slab mounted, plug the factory drilled auxil-
iary condensate drain holes.
6. Auxiliary heating coil is field supplied and installed.
7. Auxiliary heating coil dimensions (maximum):
Length (header included), 7Ј-01⁄4Љ [2140]
Width, 0Ј-95⁄8Љ [244]
Height, 4Ј-515⁄16Љ [1370]
8. Economizer side hoods are folded inside unit for
shipping.
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CERTIFIED DIMENSION PRINT
NOTES:
WEIGHT
lb kg
A
UNIT
SIZE
1. Dimensions in [ ] are in millimeters.
mm
ft-in.
2.
Center of Gravity includes economizer. Unit weight does not include economizer
or heating coil.
50JB044 7120 3229 5211 17-11⁄8
50JB048 7160 3247 5239 17-21⁄4
3. Unit clearances:
Top — Do not restrict condenser fans
Control Box End — 6Ј-0Љ
Sides — 6Ј-0Љ
Economizer End — 6Ј-0Љ (except power exhaust units 10Ј-0Љ)
For smaller service and operating clearances, contact Carrier
Application Engineering Department.
4. Suggested field connections to be made inside or outside of 1.28 in. (32.5 mm) flange.
5. When the unit is slab mounted, plug the factory drilled auxiliary condensate drain holes.
6. Auxiliary heating coil is field supplied and installed.
7. Auxiliary heating coil dimensions (maximum):
Length (header included), 7Ј-01⁄4Љ [2140]
Width, 0Ј-95⁄8Љ [244]
Height, 4Ј-515⁄16Љ [1370]
8. Economizer side hoods are folded inside unit for
shipping.
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CUT ALONG DOTTED LINE
CUT ALONG DOTTED LINE
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CERTIFIED DIMENSION PRINT
NOTES:
1. Dimensions in [ ] are in millimeters.
WEIGHT
lb kg
A
B
C
D
E
F
UNIT
SIZE
mm ft-in. mm ft-in. mm
ft-in.
mm
ft-in.
mm
ft-in.
mm
ft-in.
2.
Center of Gravity includes economizer. Unit weight does not include economizer or
heating coil.
50JB054 8800 3990 2959 9-81⁄2 6940 22-93⁄4 6393 20-1111⁄16 1163 3-925⁄32 11 780 38-713⁄16 12 164 39-107⁄8
50JB064 9100 4127 2959 9-81⁄2 6940 22-93⁄4 6393 20-1111⁄16 1163 3-925⁄32 11 780 38-713⁄16 12 164 39-107⁄8
3. Unit clearances:
Top — Do not restrict condenser fans
Control Box End — 6Ј-0Љ
Sides — 6Ј-0Љ
Economizer End — 6Ј-0Љ
For smaller service and operating clearances, contact Carrier Application Engineering
Department.
4. Suggested field connections to be made inside or outside of 1.28 in. (32.5 mm) flange.
5. When the unit is slab mounted, plug the factory drilled auxiliary condensate drain holes.
6. Auxiliary heating coil is field supplied and installed.
7. Auxiliary heating coil dimensions (maximum):
Length (header included), 7Ј-01⁄4Љ [2140]
Width, 0Ј-95⁄8Љ [244]
Height, 4Ј-515⁄16Љ [1370]
8. Economizer side hoods are folded inside unit for
shipping.
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CERTIFIED ROOF CURB DIMENSION PRINT
Download from Www.Somanuals.com. All Manuals Search And Download.
CUT ALONG DOTTED LINE
CUT ALONG DOTTED LINE
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CERTIFIED ROOF CURB DIMENSION PRINT
Download from Www.Somanuals.com. All Manuals Search And Download.
CERTIFIED ROOF CURB DIMENSION PRINT
Download from Www.Somanuals.com. All Manuals Search And Download.
CUT ALONG DOTTED LINE
CUT ALONG DOTTED LINE
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CERTIFIED ACCESSORY ROOF CURB DIMENSION PRINT
Download from Www.Somanuals.com. All Manuals Search And Download.
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