Unitary products group BCB Series Quick start guide

257098-BTG-A-0506
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
SINGLE PACKAGE HEAT PUMP UNITS
BCB 036, 048 & 060
3, 4 & 5 NOMINAL TONS
10.0 SEER
TECHNICAL
GUIDE
TECHNICAL
GUIDE
DESCRIPTION
BCB Series heat pumps are convertible single package units
with a common cabinet and a common roof curb for the 3, 4
and 5 ton sizes. The units were designed for light commercial
and commercial applications. They can easily be installed on
a roof curb, slab, roof jack or frame.
All units include:
• Powder Paint finish that meets ASTM-B-117 1000 hour
salt spray standards
• Permanently lubricated motors
• Bottom or side air discharge configuration capability
(field convertible)
• Manufactured under the quality standards of ISO9001
• Copper tube/aluminum fin coils
• Easy access to all components
• Rigging holes in base rails for lifting
• Fork lift slots on three sides
• Single point power connection
• Complete factory package - tested, charged and wired
• CSA agency listing on all units
WARRANTY
• Factory Limited Parts Warranty
• One-year parts warranty
• A Five-year parts warranty on the compressor and
electric heat elements.

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TABLE OF CONTENTS
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
PRODUCT NOMENCLATURE . . . . . . . . . . . . . . . . . 3
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
FACTORY-INSTALLED OPTIONS . . . . . . . . . . . . . . 5
FIELD-INSTALLED ACCESSORIES . . . . . . . . . . . . 5
GUIDE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . 37
LIST OF FIGURES
Fig. # Pg. #
1 UNIT CUTAWAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2 TYPICAL FIELD POWER & CONTROL WIRING . . . .21
3 UNIT DIMENSIONS (3 - 5 TON HEAT PUMP)
FRONT VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
4 UNIT WITH ECONOMIZER RAINHOOD . . . . . . . . . . .22
5 UNIT WITH FIXED OUTDOOR AIR/MOTORIZED
DAMPER RAINHOOD . . . . . . . . . . . . . . . . . . . . . . . . .23
6 UNIT DIMENSIONS (REAR VIEW) . . . . . . . . . . . . . . .23
7 DISCONNECT/BLOWER ACCESS LOCATION . . . . .24
8 TYPICAL APPLICATIONS . . . . . . . . . . . . . . . . . . . . . .25
9 FOUR AND SIX POINT LOADING . . . . . . . . . . . . . . . .26
10 ROOF CURB DIMENSIONS . . . . . . . . . . . . . . . . . . . .27
11 HEAT PUMP WITH ELECTRIC HEAT CONTROL
CIRCUIT 208/230-3-60 DIAGRAM . . . . . . . . . . . . . . . .28
12 HEAT PUMP WITH ELECTRIC HEAT CONTROL
CIRCUIT 460-3-60 DIAGRAM . . . . . . . . . . . . . . . . . . .29
13 HEAT PUMP WITH ELECTRIC HEAT CONTROL
CIRCUIT 575-3-60 DIAGRAM . . . . . . . . . . . . . . . . . . .30
14 HEAT PUMP POWER CIRCUIT 208/230-3-60 DIRECT
DRIVE INDOOR BLOWER DIAGRAM . . . . . . . . . . . . .31
15 HEAT PUMP WITH ELECTRIC HEAT POWER CIRCUIT
208/230-3-60 BELT DRIVE INDOOR BLOWER
DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
16 HEATPUMPPOWERCIRCUIT460-3-60DIRECTDRIVE
INDOOR BLOWER DIAGRAM . . . . . . . . . . . . . . . . . . .33
17 HEAT PUMP POWER CIRCUIT 460-3-60 BELT DRIVE
INDOOR BLOWER DIAGRAM . . . . . . . . . . . . . . . . . . .34
18 HEATPUMPPOWERCIRCUIT575-3-60DIRECTDRIVE
INDOOR BLOWER DIAGRAM . . . . . . . . . . . . . . . . . . .35
19 HEAT PUMP POWER CIRCUIT 575-3-60 BELT DRIVE
INDOOR BLOWER DIAGRAM . . . . . . . . . . . . . . . . . . .36
LIST OF TABLES
Tbl. # Pg. #
1 SOUND POWER RATING . . . . . . . . . . . . . . . . . . . . . . . 6
2 CAPACITY RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 BCB036 COOLING CAPACITIES (3 TON) . . . . . . . . . . 7
4 BCB048 COOLING CAPACITIES (4 TON) . . . . . . . . . . 8
5 BCB060 COOLING CAPACITIES (5 TON) . . . . . . . . . . 9
6 BCB HEATING CAPACITIES . . . . . . . . . . . . . . . . . . . 10
7 SUPPLY AIR BLOWER PERFORMANCE (3 TON BELT
DRIVE) - SIDE DUCT APPLICATION . . . . . . . . . . . . . 11
8 SUPPLY AIR BLOWER PERFORMANCE (4 TON BELT
DRIVE) - SIDE DUCT APPLICATION . . . . . . . . . . . . . 12
9 SUPPLY AIR BLOWER PERFORMANCE (5 TON BELT
DRIVE) - SIDE DUCT APPLICATION . . . . . . . . . . . . . 13
10 SUPPLY AIR BLOWER PERFORMANCE (3 - 5 TON
DIRECT DRIVE) - SIDE DUCT APPLICATION . . . . . . 14
11 BELT DRIVE BLOWER MOTOR AND DRIVE DATA. . 14
12 STATIC RESISTANCES . . . . . . . . . . . . . . . . . . . . . . . 15
13 ELECTRIC HEATER CFM LIMITATIONS . . . . . . . . . . 15
14 ELECTRICAL DATA - BCB036 - 060
DIRECT DRIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
15 ELECTRICAL DATA - BCB036 - 060
BELT DRIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
16 PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
17 ELECTRIC HEAT CORRECTION FACTORS . . . . . . 20
18 VOLTAGE LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . 20
19 UTILITIES ENTRY . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
20 MINIMUM CLEARANCES . . . . . . . . . . . . . . . . . . . . . . 24
21 BCB 4 POINT LOADS WEIGHT DISTRIBUTION . . . . 26
22 BCB 6 POINT LOADS WEIGHT DISTRIBUTION . . . . 26
23 CENTER OF GRAVITY . . . . . . . . . . . . . . . . . . . . . . . . 26
24 OPERATING WEIGHTS (LBS.) . . . . . . . . . . . . . . . . . . 26

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PRODUCT NOMENCLATURE
FEATURES
All units are self-contained and assembled on full perimeter
base rails with forklift holes on three sides and holes for over-
head rigging. Every unit is completely piped, wired, charged
and tested at the factory to simplify the field installation and to
provide years of dependable operation.
All models (including those with an economizer) are suitable
for either bottom or horizontal duct connections. For bottom
duct, remove the sheet metal panels from the supply and
return air openings through the base of the unit. For horizon-
tal duct, remove the supply and return air panels on the rear
of the unit.
All models are available with the “factory mounted” outdoor
air damper option:
• Single enthalpy economizer
Supply air blowers are equipped with either a direct drive or a
belt drive that can be adjusted to meet the exact require-
ments of the job.
All compressors are equipped with internal pressure relief.
Every refrigerant circuit includes a liquid line filter-drier, a high
pressure switch and a suction line with a freezestat and low
pressure/loss of charge switch to protect all system compo-
nents.
• Control boards have standardized a number of features
previously available only as options or by utilizing addi-
tional controls.
•Low Ambient - An integrated low-ambient control
allows all units to operate in the cooling mode down
to 0ºF outdoor ambient without additional assis-
tance. Optionally, the control board can be pro-
grammed to lockout the compressors when the
outdoor air temperature is low or when free cooling
is available.
•Anti-Short Cycle Protection - To aid compressor
life, an anti-short cycle delay is incorporated into the
standard controls. Compressor reliability is further
ensured by programmable minimum run times. For
testing, the anti short cycle delay can be temporarily
overridden with the push of a button.
•Fan Delays - Fan on and fan off delays are fully pro-
grammable and are independent of one another. All
units are programmed with default values based
upon their configuration of cooling and heat.
•Safety Monitoring - The control board monitors the
high and low-pressure switches, the freezestats, the
gas valve, if applicable, and the temperature limit
switch on gas heat units. The unit control board will
alarm on ignition failures, compressor lockouts and
repeated limit switch trips.
•Nuisance Trip Protection- To prevent nuisance
trouble calls, the control board uses a “three strikes,
you’re out” philosophy. The high and low-pressure
switches and the freezestats must trip three times
within two hours before the unit control board will
lock out the compressor.
•On Board Diagnostics - Each alarm will energize a
trouble light on the thermostat, if so equipped, and
flash an alarm code on the control board LED. Each
high and low-pressure switch alarm as well as each
freezestat alarm has its own flash code. The control
board saves the five most recent alarms in memory,
and these alarms can be reviewed at any time.
Alarms and programmed values are retained
through the loss of power.
All units have long lasting powder paint cabinets with 1000
hour salt spray test approval under ASTM-B117 procedures.
All models are CSA listed.
B D C B A
PRODUCT GENERATION
D = Fourth Generation
E = Fifth Generation
F = Sixth Generation
PRODUCT CATEGORY
B = Single Package Heat Pump
(Air Cooled)
PRODUCT IDENTIFIER
CB = Heat Pump
VOLTAGE CODE
-T = 208/230-3-60
-W = 460-3-60
-X = 575-3-60
036 = 3 Ton
048 = 4 Ton
060 = 5 Ton
30 6- T
FACTORY INSTALLED HEAT
A = No Supplemental Heat
NOMINAL COOLING CAPACITY

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4Unitary Products Group
•Warranty - All models include a one-year limited parts
warranty on the complete unit. Compressors and electric
heater elements carry a five-year warranty
•Electric Heat Operation - All electric heat models are
wired for a single power source and include a bank of
nickel chromium elements mounted at the discharge of
the supply air blower to provide a high velocity and uni-
form distribution of air across the heating elements.
Every element is fully protected against excessive tem-
perature by thermal limit switches.
The power supply wiring can be routed into the control
box through a threaded pipe connection (field supplied)
in the base pan of the unit or through a knockout in the
wiring panel on the side of the unit.
FIGURE 1 - UNIT CUTAWAY

257098-BTG-A-0506
Unitary Products Group 5
FACTORY-INSTALLED OPTIONS
•SINGLE INPUT ELECTRONIC ENTHALPY ECONO-
MIZERS - Includes a slide-in / plug-in damper assembly
with fully modulating spring-return motor actuator capa-
ble of introducing up to 100% outdoor air with nominal
1% leakage type dampers.
The enthalpy system contains one sensor that monitors
the outdoor air and determines when the air is cool
enough and dry enough to provide free cooling.
The rainhood is painted to match the basic unit and must
be field-assembled before installing.
•PHENOLIC COATED CONDENSER COILS - Special
coating process that utilizes Technicoat 10-1TM pro-
cesses. Coating is applied by total immersion of the com-
plete coil for maximum protection.
•BELT DRIVE INDOOR FAN - Includes belt drive indoor
fan and motor with unit access for belt adjustment and
service.
FIELD-INSTALLED ACCESSORIES
•SINGLE INPUT ELECTRONIC ENTHALPY ECONO-
MIZERS - Includes a slide-in / plug-in damper assembly
with fully modulating spring-return motor actuator capa-
ble of introducing up to 100% outdoor air with nominal
1% leakage type dampers.
The enthalpy system contains one sensor that monitors
the outdoor air and determines when the air is cool
enough and dry enough to provide free cooling.
The rainhood is painted to match the basic unit and must
be field-assembled before installing.
•MOTORIZED OUTDOOR AIR INTAKE DAMPER -
Includes a slide-in / plug-in damper assembly with a 2-
position, spring return motor actuator which opens to
some pre-set position whenever the supply air blower is
operating and will drive fully closed when the blower unit
shuts down.
The rain hood is painted to match the basic unit and
must be field assembled before installing.
•ELECTRIC HEATERS - wired for single point power
supply. These nickel chromium heater elements are pro-
vided with limit and automatic reset capability to prevent
operation at excessive temperatures.
•ROOF CURBS - Eight and fourteen-inch high roof curbs
provide a water-tight seal between the unit and the fin-
ished roof. These full perimeter curbs meet the require-
ments of the National Roofing Contractors Association
(NRCA) and are shipped knocked-down for field assem-
bly.
Roof curbs are designed to fit inside the base rails of the
unit and include both a wood nailing strip and duct
hanger supports.
•POWER EXHAUST - Our single input economizer
options are available with power exhaust. Whenever the
outdoor air intake dampers are opened for free cooling,
the exhaust fan will be energized to prevent the condi-
tioned space from being over-pressurized during econo-
mizer operation.
The power exhaust option can only be used on bot-
tom duct configurations.
•BAROMETRIC RELIEF DAMPER - This damper acces-
sory can be used to relieve internal building air pressure
on units with an economizer without power exhaust. This
accessory includes a rain hood, a bird screen and a fully
assembled damper. With bottom duct connections, the
damper should be mounted over the opening in the
return air panel. With horizontal ductwork, the accessory
should be mounted on the return air duct.
•ENTHALPY ACCESSORY CONTROL KIT - This kit
contains the required components to convert a single
enthalpy economizer to dual enthalpy.
•BURGLAR BARS - Mount in the supply and return
openings to prevent entry into the duct work.
•COIL GUARD - Customers can purchase a coil guard kit
to protect the condenser coil from damage. This is not a
hail guard kit.
•HAIL GUARD - Hail guard is available to protect the unit
from hail damage. This is a sloped hood that fits above
the coil.
•MANUAL OUTDOOR AIR DAMPERS - Provide 0% to
100% outdoor air capability.

257098-BTG-A-0506
6Unitary Products Group
NOTES:
SEER = Seasonal Energy Efficiency Ratio - the total cooling output in BTU’s during a normal annual usage period for cooling divided
by the total electric power input in watt-hours during the same period.
EER = Energy Efficiency Ratio - the cooling capacity in BTU’s per hour (BTUH) divided by the power input in watts at any given set of
rating conditions, expressed in BTUH per watt (BTUH/watt).
HSPF = Heating Seasonal Performance Factor - the total heating output during a normal annual usage period for heating divided by
the total electric power input during the same period. (Based on Region IV minimum design heating requirement.)
TABLE 1: SOUND POWER RATING1
UNIT
SIZE CFM ESP BLOWER SOUND POWER (db 10-12 Watts)
Octave Band Centerline Frequency (Hz) SWL
dB(A)
dB(A)
@
10Ft.2
IWG SPEED KW 63 125 250 500 1,000 2,000 4,000 8,000
036 1,200 0.6 LOW 0.60 84 84 74 67 69 62 57 52 74 41
048 1,600 0.55 HIGH 0.80 85 85 75 68 70 63 58 53 75 42
060 2,000 0.45 HIGH 1.00 86 86 76 69 71 64 59 54 76 43
1. These values have been accessed using a model of sound propagation from a point source into the hemispheric\free field. The
dBA values provided are to be used for reference only. Calculation of dBA values cover matters of system design and the fan
manufacture has no way of knowing the details of each system. This constitutes and expectation to any specification or guaran-
tee requiring a dBA value or sound data in any other form than sound power level ratings.
2. At a distance of 10 feet from the blower.
TABLE 2: CAPACITY RATINGS
UNIT SIZE
(MBH)
ARI RATINGS1
COOLING PERFORMANCE SOUND
RATING2
bels HSPF
HEATING CAPACITY
47°F 17°F
MBH SEER EER MBH COP MBH COP
036 39 10.00 9.20 8.6 7.3 39.0 3.0 23.0 2.1
048 48 10.20 9.25 8.6 6.7 48.0 3.0 26.4 2.0
060 59 10.00 9.20 8.4 7.0 59.0 3.0 36.0 2.1
1. Certified in accordance with the Unitary Small Equipment certification program, which is based on ARI Standard 210/240.
2. Rated in accordance with ARI Standard 270.

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TABLE 3: BCB036 COOLING CAPACITIES (3 TON)
CFM WB °F 86 83 80 77 74 71 68 86 83 80 77 74 71 68
72 51 3.4 37 32 28 24 19 - - 47 3.7 34 29 25 22 17 - -
67 46 3.4 40 40 36 31 26 21 16 44 3.7 38 38 34 29 24 20 15
62 42 3.3 42 42 41 39 34 29 24 38 3.6 38 38 37 35 30 26 21
57 42 3.3 42 42 42 40 35 30 25 37 3.6 37 37 37 35 30 26 22
72 49 3.4 35 30 26 22 18 - - 46 3.7 32 28 24 20 16 - -
67 45 3.4 39 37 33 29 24 20 15 42 3.7 36 34 30 27 22 18 14
62 41 3.3 41 41 40 37 32 28 24 37 3.6 37 37 36 33 28 25 21
57 41 3.3 41 41 41 38 34 29 25 36 3.6 36 36 36 33 29 25 21
72 48 3.4 33 29 24 20 16 - - 45 3.7 30 27 22 18 15 - -
67 44 3.3 39 36 32 28 23 20 15 41 3.7 36 33 29 26 21 18 13
62 40 3.3 40 39 38 34 30 26 22 36 3.6 36 35 34 30 27 23 19
57 40 3.3 40 40 39 35 31 27 23 36 3.5 36 36 35 31 27 24 20
72 47 3.4 31 27 24 20 16 - - 44 3.7 29 25 22 18 14 - -
67 41 3.3 36 32 29 25 22 18 14 39 3.6 34 30 27 23 20 17 13
62 38 3.3 38 37 36 32 29 25 21 35 3.6 35 34 33 29 26 23 19
57 37 3.3 37 37 36 33 30 26 22 35 3.5 35 35 34 31 28 24 20
72 45 3.3 28 25 22 19 16 - - 42 3.6 26 23 20 17 14 - -
67 41 3.3 34 30 27 24 20 17 14 38 3.6 31 27 25 22 18 15 12
62 36 3.3 36 35 33 30 27 24 21 34 3.5 34 33 31 28 25 22 19
57 36 3.3 36 36 34 31 28 25 22 33 3.5 33 33 31 28 25 22 20
72 45 3.3 26 24 20 17 15 - - 40 3.6 23 21 17 15 13 - -
67 39 3.3 31 28 25 22 19 17 14 35 3.6 27 25 22 19 17 15 12
62 35 3.2 35 34 32 29 25 23 20 32 3.5 32 30 28 25 22 20 17
57 35 3.2 35 35 32 30 26 24 21 31 3.5 31 31 28 26 23 21 18
CFM WB °F 86 83 80 77 74 71 68 86 83 80 77 74 71 68
72 44 4.0 31 27 24 20 16 - - 42 4.2 30 26 23 19 15 - -
67 40 4.0 34 34 31 26 22 18 13 36 4.1 31 31 28 24 20 16 12
62 35 3.9 35 35 34 32 28 24 20 34 4.1 34 34 33 31 27 23 19
57 35 3.9 35 35 35 33 29 25 20 33 4.1 33 33 33 31 27 23 19
72 43 4.0 30 26 22 19 15 - - 41 4.2 29 25 21 18 15 - -
67 38 4.0 32 31 27 24 20 16 12 35 4.1 30 28 25 22 18 15 11
62 34 3.9 34 34 33 30 26 23 19 33 4.1 33 33 32 29 25 22 19
57 34 3.9 34 34 34 31 28 24 20 32 4.1 32 32 32 29 26 22 19
72 42 4.0 28 25 21 17 14 - - 39 4.2 26 23 19 16 13 - -
67 37 4.0 32 30 26 23 19 16 12 34 4.1 30 27 24 21 17 15 11
62 33 3.9 33 32 31 28 24 21 18 32 4.1 32 31 30 27 24 20 17
57 32 3.8 32 32 31 28 24 21 18 32 4.0 32 32 31 28 24 21 18
72 41 4.0 27 23 20 17 13 - - 37 4.2 24 21 18 15 12 - -
67 35 3.9 30 27 24 21 18 15 11 32 4.1 28 24 22 19 17 14 10
62 32 3.9 32 31 30 26 24 21 17 30 4.1 30 29 28 25 22 19 16
57 31 3.8 31 31 31 27 25 21 18 29 4.0 29 29 29 25 23 20 17
72 40 3.9 24 22 19 16 14 - - 35 4.1 21 19 17 14 12 - -
67 34 3.9 28 24 22 19 16 14 11 31 4.0 25 22 20 18 15 12 10
62 30 3.8 30 29 27 25 22 20 17 29 4.0 29 28 26 24 21 19 16
57 30 3.8 30 30 28 25 23 20 18 28 4.0 28 28 26 24 21 19 17
72 38 3.9 21 20 16 14 12 - - 34 4.1 19 18 15 12 11 - -
67 32 3.9 25 22 20 18 15 13 11 29 4.0 23 20 18 16 14 12 10
62 29 3.8 29 27 25 23 20 18 16 27 4.0 27 25 24 21 18 17 15
57 29 3.8 29 29 26 24 21 19 17 26 4.0 26 26 23 22 19 17 15
NOMINAL RATING
900
TOTAL
CAP.1
MBH
POWER
INPUT2kW
TOTAL
CAP.1
MBH
TOTAL
CAP.1
MBH
POWER
INPUT2kW
TOTAL
CAP.1
MBH
1750
1050
POWER
INPUT2kW
ENTERING DRY BULB, °F ENTERING DRY BULB, °F
AIR ON
EVAPORATOR
COIL
TEMPERATURE OF AIR ON CONDENSER COIL
105°F 115°F
1200
SENSIBLE CAPACITY1
1400
1200
SENSIBLE CAPACITY1
1400
SENSIBLE CAPACITY1
1500
900
1050
1500
ENTERING DRY BULB, °F
AIR ON
EVAPORATOR
COIL
TEMPERATURE OF AIR ON CONDENSER COIL
85°F
POWER
INPUT2kW
95°F
SENSIBLE CAPACITY1
1750
ENTERING DRY BULB, °F
1. These capacities are gross ratings. For net capacity, determine the kW of the supply air blower motor from the SUPPLY AIR BLOWER PERFORMANCE
Table, multiply this value by 3.415 MBH/kW to determine the motor heat, and deduct this heat from the gross capacity of the unit.
2. These ratings include the compressor and the condenser fan motors but not the supply air blower motor. The total condenser fan motor power input
is 0.35kW. Refer to the SUPPLY AIR BLOWER PERFORMANCE Table for the kW of the supply air blower motor.

257098-BTG-A-0506
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TABLE 4: BCB048 COOLING CAPACITIES (4 TON)
CFM WB °F 86 83 80 77 74 71 68 86 83 80 77 74 71 68
72 56 4.1 42 36 31 26 - - - 53 4.5 40 35 29 24 - - -
67 53 4.0 48 47 41 36 30 25 - 51 4.4 46 45 41 35 30 24 -
62 49 4.0 49 49 48 44 38 33 28 46 4.3 46 46 45 41 35 30 24
57 49 3.9 49 49 49 44 38 33 28 46 4.3 46 46 46 41 35 30 24
72 55 4.0 40 35 30 25 - - - 53 4.4 38 33 28 23 - - -
67 52 4.0 47 44 39 34 29 24 - 51 4.4 44 44 39 34 29 24 -
62 48 3.9 48 48 47 43 38 33 28 47 4.3 47 47 45 40 36 31 26
57 48 3.9 48 48 48 43 38 33 28 45 4.2 45 45 45 40 35 30 25
72 53 4.0 37 33 28 24 - - - 52 4.4 36 32 27 23 - - -
67 51 4.0 46 42 37 33 28 24 - 50 4.3 44 43 38 34 29 25 -
62 47 3.9 47 47 46 41 37 32 28 45 4.2 45 45 44 40 36 31 27
57 47 3.9 47 47 47 42 38 33 29 44 4.1 44 44 44 40 36 31 27
72 52 4.0 34 30 26 22 - - - 49 4.3 33 29 25 21 - - -
67 49 3.9 42 38 34 30 26 22 - 47 4.2 42 38 34 30 26 22 -
62 46 3.8 46 45 42 38 34 30 26 43 4.1 43 42 40 36 32 28 24
57 45 3.8 45 45 43 39 35 31 27 42 4.1 42 42 40 36 32 28 24
72 50 3.9 31 27 24 20 - - - 47 4.2 29 25 22 18 - - -
67 47 3.9 38 35 31 28 24 21 - 45 4.2 37 34 30 27 23 20 -
62 44 3.8 44 42 39 35 32 28 25 40 4.1 40 39 36 32 29 25 22
57 44 3.7 44 43 39 36 32 29 25 40 4.0 40 39 36 32 29 25 22
CFM WB °F 86 83 80 77 74 71 68 86 83 80 77 74 71 68
72 51 4.9 40 35 29 24 - - - 49 5.2 39 34 29 23 - - -
67 46 4.7 42 42 39 34 28 23 - 41 5.0 40 40 37 32 26 21 -
62 43 4.6 43 43 42 37 32 27 21 40 4.9 40 40 39 34 29 23 18
57 43 4.6 43 43 43 38 32 28 22 40 4.8 40 40 40 34 30 24 19
72 50 4.8 38 33 28 23 - - - 47 5.1 37 32 27 22 - - -
67 45 4.7 41 41 37 32 27 22 - 40 4.9 37 36 35 30 25 20 -
62 42 4.6 42 42 41 37 32 27 22 39 4.8 39 39 37 34 29 24 19
57 42 4.5 42 42 42 37 33 27 23 38 4.7 38 38 38 33 30 25 20
72 49 4.8 35 31 26 22 - - - 46 5.1 34 29 25 20 - - -
67 44 4.6 40 40 35 31 26 22 - 39 4.9 36 36 32 28 23 19 -
62 41 4.5 41 41 40 35 32 27 23 37 4.7 37 37 36 33 28 24 19
57 41 4.4 41 41 41 36 32 28 23 37 4.7 37 37 37 34 28 25 20
72 47 4.7 32 28 24 20 - - - 44 5.0 31 27 23 19 - - -
67 42 4.5 38 36 32 28 24 20 - 37 4.8 36 34 30 26 21 17 -
62 39 4.4 39 38 37 33 28 25 20 36 4.7 36 35 34 30 26 22 18
57 39 4.4 39 39 37 33 29 25 21 36 4.6 36 36 34 31 26 23 19
72 44 4.6 28 25 21 18 - - - 42 4.9 28 24 21 17 - - -
67 40 4.5 36 32 29 25 22 18 - 36 4.7 34 31 27 24 20 17 -
62 38 4.4 38 36 34 29 27 22 20 35 4.6 35 34 30 28 24 20 17
57 37 4.3 37 37 34 30 27 23 20 35 4.6 35 35 31 29 24 21 18
NOMINAL RATING
1200
TOTAL
CAP.1
MBH
POWER
INPUT2kW
TOTAL
CAP.1
MBH
TOTAL
CAP.1
MBH
POWER
INPUT2kW
TOTAL
CAP.1
MBH
2000
1800
1600
1400
POWER
INPUT2kW
ENTERING DRY BULB, °F ENTERING DRY BULB, °F
AIR ON
EVAPORATOR
COIL
TEMPERATURE OF AIR ON CONDENSER COIL
105°F 115°F
SENSIBLE CAPACITY1SENSIBLE CAPACITY1
SENSIBLE CAPACITY1
ENTERING DRY BULB, °F
AIR ON
EVAPORATOR
COIL
TEMPERATURE OF AIR ON CONDENSER COIL
1200
1400
85°F
POWER
INPUT2kW
95°F
SENSIBLE CAPACITY1
ENTERING DRY BULB, °F
2000
1800
1600
1. These capacities are gross ratings. For net capacity, determine the kW of the supply air blower motor from the SUPPLY AIR BLOWER PERFORMANCE
Table, multiply this value by 3.415 MBH/kW to determine the motor heat, and deduct this heat from the gross capacity of the unit.
2. These ratings include the compressor and the condenser fan motors but not the supply air blower motor. The total condenser fan motor power input
is 0.35kW. Refer to the SUPPLY AIR BLOWER PERFORMANCE Table for the kW of the supply air blower motor.

257098-BTG-A-0506
Unitary Products Group 9
TABLE 5: BCB060 COOLING CAPACITIES (5 TON)
CFM WB °F 86 83 80 77 74 71 68 86 83 80 77 74 71 68
72 68 5.7 51 44 38 31 - - - 67 6.0 51 45 38 31 - - -
67 65 5.6 58 56 50 43 37 30 - 64 5.9 56 56 50 43 37 30 -
62 61 5.6 61 61 59 53 46 39 33 59 5.9 59 59 57 50 44 38 31
57 60 5.5 60 60 59 53 47 40 33 58 5.8 58 58 57 51 44 39 32
72 67 5.6 48 42 36 30 - - - 66 5.9 48 42 36 30 - - -
67 64 5.6 57 54 48 42 36 30 - 63 5.9 55 54 48 42 35 29 -
62 60 5.5 60 60 57 51 45 39 33 57 5.8 57 57 55 50 44 38 32
57 59 5.5 59 59 58 52 46 40 34 57 5.8 57 57 56 50 45 39 33
72 66 5.6 45 40 34 29 - - - 65 5.9 45 40 34 29 - - -
67 63 5.5 56 51 45 40 35 29 - 61 5.9 55 51 45 40 34 29 -
62 59 5.4 59 59 55 50 44 39 33 56 5.8 56 56 54 49 44 38 33
57 58 5.4 58 58 57 52 46 41 36 56 5.7 56 56 55 50 44 39 34
72 64 5.5 42 37 32 27 - - - 62 5.9 43 38 33 28 - - -
67 61 5.5 52 47 42 37 33 28 - 59 5.8 53 48 44 39 34 29 -
62 57 5.4 57 56 51 46 41 37 32 54 5.7 54 54 52 48 43 38 33
57 57 5.4 57 57 53 48 44 39 34 54 5.7 54 54 53 49 43 39 34
72 62 5.5 38 34 30 25 - - - 60 5.8 41 36 32 28 - - -
67 59 5.5 48 43 39 35 31 26 - 57 5.8 51 46 42 38 34 29 -
62 55 5.4 55 52 47 43 39 35 30 52 5.7 52 52 50 46 42 38 34
57 55 5.3 55 54 49 45 41 37 32 52 5.6 52 52 51 47 42 39 35
CFM WB °F 86 83 80 77 74 71 68 86 83 80 77 74 71 68
72 64 6.0 51 44 38 31 - - - 60 6.9 50 43 37 30 - - -
67 59 5.9 51 51 49 42 36 29 - 54 6.6 54 53 47 41 34 27 -
62 54 5.9 54 54 51 46 40 33 26 49 6.5 49 49 48 42 35 28 22
57 54 5.8 54 54 52 46 41 33 26 49 6.5 49 49 49 43 35 28 23
72 63 5.9 48 42 36 30 - - - 60 6.8 47 41 35 29 - - -
67 58 5.9 51 51 46 40 34 28 - 54 6.6 47 47 45 39 32 26 -
62 53 5.8 53 53 52 46 40 34 28 49 6.5 49 49 47 42 36 30 24
57 53 5.8 53 53 52 46 41 35 27 49 6.4 49 49 48 43 37 31 25
72 62 5.9 45 39 34 28 - - - 59 6.8 44 38 33 27 - - -
67 57 5.9 51 49 44 38 33 27 - 53 6.5 45 45 42 36 31 26 -
62 52 5.8 52 52 51 46 40 35 30 48 6.4 48 48 46 42 36 31 25
57 52 5.7 52 52 51 46 40 36 31 47 6.4 47 47 46 43 36 32 25
72 60 5.9 41 37 32 27 - - - 56 6.7 40 35 30 25 - - -
67 55 5.8 48 46 41 36 31 26 - 51 6.5 43 43 38 33 29 24 -
62 50 5.7 50 50 48 43 39 34 29 46 6.4 46 46 43 38 33 28 24
57 50 5.7 50 50 48 43 39 34 30 45 6.3 45 45 43 38 33 28 25
72 57 5.8 38 34 30 25 - - - 53 6.6 36 31 27 23 - - -
67 53 5.8 47 43 38 34 30 26 - 48 6.4 41 39 35 30 26 22 -
62 48 5.7 48 48 45 41 37 32 28 44 6.3 44 44 39 35 30 26 22
57 48 5.6 48 48 45 41 38 32 28 43 6.2 43 43 40 36 30 26 23
NOMINAL RATING
1500
TOTAL
CAP.1
MBH
POWER
INPUT2kW
TOTAL
CAP.1
MBH
TOTAL
CAP.1
MBH
POWER
INPUT2kW
TOTAL
CAP.1
MBH
2500
2250
2000
1750
POWER
INPUT2kW
ENTERING DRY BULB, °F ENTERING DRY BULB, °F
AIR ON
EVAPORATOR
COIL
TEMPERATURE OF AIR ON CONDENSER COIL
105°F 115°F
SENSIBLE CAPACITY1SENSIBLE CAPACITY1
SENSIBLE CAPACITY1
ENTERING DRY BULB, °F
AIR ON
EVAPORATOR
COIL
TEMPERATURE OF AIR ON CONDENSER COIL
1500
1750
85°F
POWER
INPUT2kW
95°F
SENSIBLE CAPACITY1
ENTERING DRY BULB, °F
2500
2250
2000
1. These capacities are gross ratings. For net capacity, determine the kW of the supply air blower motor from the SUPPLY AIR BLOWER PERFORMANCE
Table, multiply this value by 3.415 MBH/kW to determine the motor heat, and deduct this heat from the gross capacity of the unit.
2. These ratings include the compressor and the condenser fan motors but not the supply air blower motor. The total condenser fan motor power input
is 0.35kW. Refer to the SUPPLY AIR BLOWER PERFORMANCE Table for the kW of the supply air blower motor.

257098-BTG-A-0506
10 Unitary Products Group
TABLE 6: BCB HEATING CAPACITIES
CAP
&KW-100 102030405060
MBH 13.1 16.4 23.5 29.1 30.2 41.7 47 48.2
KW 2.9 3 3.2 3.3 3.5 3.7 3.8 3.9
MBH 11.9 15 21.5 26.7 27.7 38.2 43.1 44.1
KW 3 3.1 3.4 3.4 3.6 3.8 3.9 4.1
MBH 10.9 13.6 19.6 24.3 25.2 34.8 39.3 40.2
KW 3.1 3.2 3.4 3.5 3.8 3.9 4.1 4.2
MBH 12.4 15.5 22.5 27.7 28.7 39.6 44.7 45.8
KW 2.7 2.9 3 3.1 3.3 3.5 3.6 3.7
MBH 11.4 14.1 20.3 25.2 26.1 36.1 40.7 41.6
KW 2.9 3 3.2 3.3 3.5 3.7 3.8 3.9
MBH 10.4 13.1 18 23.2 24.2 33.3 37.6 38.5
KW 3 3.1 3.2 3.4 3.6 3.8 3.9 4
MBH 11.8 14.8 21.3 26.5 27.5 37.8 42.7 43.7
KW 2.7 2.8 3 3.1 3.3 3.4 3.5 3.6
MBH 10.8 13.5 19.4 24 24.9 34.4 38.8 39.7
KW 2.9 3 3.1 3.3 3.4 3.6 3.7 3.8
MBH 9.9 12.4 17.8 22 22.9 31.5 35.6 36.5
KW 2.9 3.1 3.2 3.4 3.5 3.7 3.8 3.9
MBH 11.2 14.1 20.3 25.2 26.1 35.9 40.6 41.6
KW 2.6 2.7 2.9 3 3.3 3.3 3.5 3.5
MBH 10.2 12.8 18.5 22.8 23.6 32.7 36.9 37.8
KW 2.8 2.9 3 3.2 3.3 3.5 3.6 3.7
MBH 9.3 11.7 16.7 20.7 21.5 29.8 33.6 34.4
KW 2.8 3 3.1 3.3 3.4 3.6 3.7 3.8
MBH 12.3 17.3 22.5 28.2 36.3 44.5 53.8 61.6
KW 3.4 3.5 3.6 3.6 3.8 4 4.6 5.2
MBH 11.8 16.6 21.6 27.1 34.9 42.8 51.7 59.2
KW 3.5 3.6 3.8 3.8 4 4.2 4.8 5.4
MBH 10.9 15.3 19.9 24.9 32.1 39.4 47.6 54.5
KW 3.6 3.7 4 4 4.1 4.4 5 5.7
MBH 12.1 17 22 27.7 34.5 42.3 51.2 58.6
KW 3.3 3.4 3.5 3.6 3.6 3.8 4.4 5
MBH 11.6 16.3 21.2 26.6 33.2 40.7 49.2 56.3
KW 3.4 3.5 3.6 3.7 3.8 4 4.6 5.2
MBH 10.7 15 19.5 24.5 30.5 37.4 45.3 51.8
KW 3.5 3.6 3.8 3.9 4 4.2 4.8 5.4
MBH 10.9 15.3 19.9 24.9 31.7 38.9 47 53.8
KW 3.1 3.2 3.3 3.4 3.5 3.7 4.2 4.8
MBH 10.5 14.7 19.1 24 30.5 37.4 45.2 51.7
KW 3.2 3.3 3.4 3.5 3.6 3.8 4.4 5
MBH 9.6 13.5 17.6 22 28.1 34.4 41.6 47.6
KW 3.3 3.4 3.5 3.6 3.8 4 4.6 5.2
MBH 18.2 24.7 31.1 38.4 45.6 55.4 64.7 75.6
KW 5 5.1 5.2 5.3 5.3 5.6 5.9 6.5
MBH 17.5 23.7 29.9 37 43.9 53.3 62.2 72.7
KW 5.2 5.3 5.4 5.5 5.6 5.9 6.2 6.8
MBH 16.1 21.8 27.5 34 40.4 49 57.2 66.9
KW 5.4 5.6 5.7 5.8 5.9 6 6.5 7.2
MBH 18 24.4 30.8 38.1 45 54.7 63.9 74.7
KW 4.7 4.8 4.9 5 5.3 5.5 5.8 6.4
MBH 17.3 23.5 29.6 36.6 43.3 52.6 61.4 71.8
KW 4.9 5 5.1 5.2 5.5 5.8 6.1 6.7
MBH 15.9 21.6 27.2 33.7 39.8 48.4 56.5 66.1
KW 5.1 5.3 5.4 5.5 5.8 6.1 6.4 7
MBH 16.2 22 27.8 34.3 41.4 50.2 58.7 68.6
KW 4.5 4.6 4.7 4.8 5 5.3 5.5 6.1
MBH 15.6 21.2 26.7 33 39.8 48.3 56.4 66
KW 4.7 4.8 4.9 5 5.2 5.5 5.8 6.4
MBH 14.4 19.5 24.6 30.4 36.6 44.5 51.9 60.7
KW 4.9 5 5.1 5.2 5.5 5.8 6.1 6.7
1750
1400
55
70
80
55
70
80
55
70
80
55
70
80
55
70
80
70
55
80
70
80
55
70
80
55
70
80
55
70
80
1500
4
2000
2500
1200
1600
OUTDOOR AIR TEMPERATURE, °F (72% RH)
55
5
CFM RET. AIR °FModel Tonnage
2000
1050
1200
3

257098-BTG-A-0506
Unitary Products Group 11
TABLE 7: SUPPLY AIR BLOWER PERFORMANCE (3 TON BELT DRIVE) - SIDE DUCT APPLICATION
RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS
2000 843 860 880 925 919 1005 956 1065 993 1145 1030 1195 1067 1235
1900 817 775 854 850 893 920 930 995 970 1065 1008 1125 1046 1170
1800 790 700 828 760 867 840 906 905 944 980 985 1040 1025 1100
1700 - - 802 670 840 745 881 815 920 900 961 970 1001 1030
1600 ----818665858740898820940890980950
1500 ------842695882755922835962895
1400 ------833650867705904765942820
1300 --------858665893725932785
1200 --------847640880680916730
RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS
2000 1103 1270 ------------
1900 1085 1210 ------------
1800 1064 1145 1102 1180 ----------
1700 1040 1075 1081 1115 1121 1140 --------
1600 1020 1005 1060 1050 1100 1085 --------
1500 1003 945 1044 995 1086 1035 --------
1400 982 880 1024 920 1067 965 1107 1000 ------
1300970835101087010539201099960------
120095378099281510348551080905------
31, 2
AVAILABLE EXTERNAL STATIC PRESSURE-IWG 3
0.90 1.00 1.10 1.20 1.30 1.40 1.50
UNIT
TONNAGE
AIR
FLOW
CFM
31, 2
UNIT
TONNAGE
AIR
FLOW
CFM
0.60 0.70 0.80
AVAILABLE EXTERNAL STATIC PRESSURE-IWG 3
0.20 0.30 0.40 0.50
1. 230/460/575 Volts
2. For 208 Volts multiply values by 0.95.
3. Includes allowances for a wet evaporator coil and 1” filters. Refer to STATIC RESISTANCE Table
for resistance values on applications other than units with side duct airflows.

257098-BTG-A-0506
12 Unitary Products Group
TABLE 8: SUPPLY AIR BLOWER PERFORMANCE (4 TON BELT DRIVE) - SIDE DUCT APPLICATION
RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS
2000 843 860 880 925 919 1005 956 1065 993 1145 1030 1195 1067 1235
1900 817 775 854 850 893 920 930 995 970 1065 1008 1125 1046 1170
1800 790 700 828 760 867 840 906 905 944 980 985 1040 1025 1100
1700 - - 802 670 840 745 881 815 920 900 961 970 1001 1030
1600 ----818665858740898820940890980950
1500 ------842695882755922835962895
1400 ------833650867705904765942820
1300 --------858665893725932785
1200 --------847640880680916730
RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS
2000 1103 1270 ------------
1900 1085 1210 ------------
1800 1064 1145 1102 1180 ----------
1700 1040 1075 1081 1115 1121 1140 --------
1600 1020 1005 1060 1050 1100 1085 --------
1500 1003 945 1044 995 1086 1035 --------
1400 982 880 1024 920 1067 965 1107 1000 ------
1300970835101087010539201099960------
120095378099281510348551080905------
4
1, 2
AVAILABLE EXTERNAL STATIC PRESSURE-IWG
3
0.90 1.00 1.10 1.20 1.30 1.40 1.50
UNIT
TONNAGE
AIR
FLOW
CFM
4
1, 2
UNIT
TONNAGE
AIR
FLOW
CFM
0.60 0.70 0.80
AVAILABLE EXTERNAL STATIC PRESSURE-IWG
3
0.20 0.30 0.40 0.50
1. 230/460/575 Volts
2. For 208 Volts multiply values by 0.95.
3. Includes allowances for a wet evaporator coil and 1” filters. Refer to STATIC RESISTANCE Table for
resistance values on applications other than units with side duct airflows.

257098-BTG-A-0506
Unitary Products Group 13
TABLE 9: SUPPLY AIR BLOWER PERFORMANCE (5 TON BELT DRIVE) - SIDE DUCT APPLICATION
RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS
2500 1059 1560 1077 1590 1095 1630 1114 1650 1134 1660 1158 1685 1181 1720
2400 1032 1405 1054 1470 1074 1525 1094 1560 1116 1595 1140 1620 1167 1640
2300 1005 1260 1024 1275 1049 1370 1069 1440 1090 1475 1116 1505 1142 1535
2200 980 1160 1002 1170 1022 1190 1044 1250 1066 1350 1090 1410 1117 1440
2100 930 1060 957 1070 983 1080 1010 1100 1039 1160 1064 1260 1092 1340
2000 877 950 908 975 941 1000 976 1020 1009 1050 1040 1100 1070 1225
1900 ----8948859409409809801014102010471095
1800 ----8558159038609509059889401022970
1700 ------8848159258509648801001910
1600 ------864770908805948835987870
1500 --------882740926780965830
RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS
2500 --------------
2400 1193 1665 ------------
2300 1170 1580 1202 1620 ----------
2200 1148 1480 1180 1530 ----------
2100 1121 1385 1155 1425 1190 1475 --------
2000 1100 1285 1133 1340 1169 1385 1205 1445 ------
1900 1079 1180 1110 1240 1143 1280 1178 1330 1222 1375 ----
1800 1058 1060 1090 1135 1122 1190 1158 1240 1196 1295 ----
1700 1035 960 1071 1030 1103 1100 1134 1140 1164 1175 1197 1205 - -
1600 1020 900 1056 965 1088 1035 1118 1065 1145 1105 1170 1130 1198 1150
1500 1004 860 1038 880 1070 925 1101 980 1130 1045 1158 1075 1184 1110
5
1, 2
AVAILABLE EXTERNAL STATIC PRESSURE-IWG 3
0.90 1.00 1.10 1.20 1.30 1.40 1.50
UNIT
TONNAGE
AIR
FLOW
CFM
5
1, 2
UNIT
TONNAGE
AIR
FLOW
CFM
0.60 0.70 0.80
AVAILABLE EXTERNAL STATIC PRESSURE-IWG 3
0.20 0.30 0.40 0.50
1. 230/460/575 Volts
2. For 208 Volts multiply values by 0.95.
3. Includes allowances for a wet evaporator coil and 1” filters. Refer to STATIC RESISTANCE Table for
resistance values on applications other than units with side duct airflows.

257098-BTG-A-0506
14 Unitary Products Group
TABLE 10: SUPPLY AIR BLOWER PERFORMANCE (3 - 5 TON DIRECT DRIVE) - SIDE DUCT APPLICATION
CFM WATTS CFM WATTS CFM WATTS CFM WATTS CFM WATTS
HI ------17208251665795
MED 1660 850 1630 820 1590 780 1550 750 1500 720
LOW 1470 750 1440 725 1410 700 1370 675 1330 650
HI - - - - 2000 1010 1950 975 1905 945
MED 1810 910 1780 880 1740 850 1700 825 1665 800
LOW 1635 810 1610 780 1580 760 1555 740 1540 730
HI - - - - 2500 1400 2420 1350 2340 1300
MED 2390 1350 2350 1300 2300 1255 2245 1210 2190 1165
LOW 2270 1320 2230 1270 2190 1220 2145 1170 2090 1110
CFM WATTS CFM WATTS CFM WATTS CFM WATTS
HI 1600 765 1540 735 1490 700 1380 670
MED 1450 690 1400 665 1360 650 1270 610
LOW 1290 625 1250 610 1220 600 1130 560
HI 1840 910 1770 825 1660 825 1530 775
MED 1620 775 1560 740 1480 700 1390 660
LOW 1510 715 1460 690 1400 660 1300 615
HI 2260 1250 2160 1190 2060 1135 1925 1065
MED 2130 1120 2065 1075 1990 1030 1900 970
LOW 2030 1070 1960 1020 1890 970 1810 920
31
41
0.70
AVAILABLE EXTERNAL STATIC PRESSURE-IWG
2
0.90 00.108.0
31
41
51
AVAILABLE EXTERNAL STATIC PRESSURE-IWG
2
51
0.600.20 0.30 0.40 0.50
UNIT
TONNAGE MOTOR SPEED
UNIT
TONNAGE MOTOR SPEED
1. Side Duct application (230/460/575 Volts)
2. Includes allowances for a wet evaporator coil and 1” filters. Refer to STATIC RESISTANCES Table for resistance values.
TABLE 11: BELT DRIVE BLOWER MOTOR AND DRIVE DATA
MODEL
SIZE
BLOWER
RANGE
(RPM)
MOTOR1ADJUSTABLE MOTOR PULLEY FIXED BLOWER PULLEY BELT
(NOTCHED)
HP FRAME DESIG-
NATION
OUTSIDE
DIA.
(IN.)
PITCH
DIA.
(IN.)
BORE
(IN.) DESIG- NATION
OUTSIDE
DIA.
(IN.)
PITCH
DIA.
(IN.)
BORE
(IN.) DESIG- NATION
PITCH
LENGTH
(IN.) QTY.
3 TON 790/1120 1 1/2 56 1VL40 2.7-3.7 2.4-3.4 5/8 AK61 5.9 5.7 1 A36 37.3 1
4 TON 790/1120 1 1/2 56 1VL40 2.7-3.7 2.4-3.4 5/8 AK61 5.9 5.7 1 A36 37.3 1
5 TON 850/1220 1 1/2 56 1VL40 2.7-3.7 2.4-3.4 5/8 AK56 5.4 5.2 1 A36 37.3 1
1. All motors have solid bases and are inherently protected. these motors can be selected to operate into their service factor because they are located
in the moving air, upstream of any heating device.

257098-BTG-A-0506
Unitary Products Group 15
TABLE 12: STATIC RESISTANCES
1000 1200 1400 1600 1800 2000 2200 2400 2600
0.07 0.08 0.09 0.11 0.13 0.15 0.17 0.20 0.23
5-15KW 0.04 0.05 0.06 0.07 0.08 0.10 0.12 0.14 0.16
20-30KW 0.06 0.07 0.08 0.09 0.11 0.13 0.15 0.17 0.20
0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.14 0.16
BOTTOM DUCT CONNECTIONS
1
ELECTRIC
HEATERS
1
RESISTANCE, IWG
CFM
DESCRIPTION
ECONOMIZER
1, 2
1. Deduct these resistance values from the available external static pressure shown in SUPPLY AIR BLOWER PERFORMANCE Tables.
2. The pressure through the economizer is greater for 100% outdoor air than for 100% return air. If the resistance of the return air
duct system is less than 0.25 IWG, the unit will deliver less CFM during full economizer operation.
TABLE 13: ELECTRIC HEATER CFM LIMITATIONS
UNITMODELSIZENOMINAL
TONS VOLTAGE
MINIMUM SUPPLY AIR CFM
HEATER SIZE NOMINAL KW
5 7 10 15 20 30
3
208/230-3-60 1100 1100 1200 1200 1300 -
460-3-60 - 1100 1200 1200 1300 -
575-3-60 - - 1200 1200 1300 -
4
208/230-3-60 1300 1300 1300 1300 1300 -
460-3-60 - 1300 1300 1300 1300 -
575-3-60 - - 1300 1300 1400 -
5
208/230-3-60 1600 1600 1600 1600 1600 1600
460-3-60 - 1600 1600 1600 1600 1600
575-3-60 - - 1600 1600 1600 1800

257098-BTG-A-0506
16 Unitary Products Group
TABLE 14: ELECTRICAL DATA - BCB036 - 060 DIRECT DRIVE
MODEL VOLTAGE
COMPRESSORS OD FAN
MOTOR
FLA
ID
BLOWER
MOTOR
FLA
ELECTRIC HEATER
MODEL NO. HEATER KW HEATER AMPS
MIN.
CIRCUIT
AMPACITY
(AMPS)
MAX. FUSE/
BRKR1
SIZE
(AMPS)
RLA
EACH LRA EACH
BCB036
208-3-60 11.9 85.0 1.7 4.4
None -- -- 21.0 30
2CE0451052524.0 11.1 34.9 40
2CE0451072525.6 15.5 40.4 45
2CE04511025 8.0 22.2 48.7 50
2CE04511525 11.9 33.0 62.3 70
2CE04512025 15.9 44.1 76.1 80
230-3-60 11.9 85.0 1.7 4.4
None -- -- 21.0 30
2CE0451052525.3 12.7 36.9 45
2CE0451072527.5 18.0 43.5 50
2CE04511025 10.6 25.5 52.8 60
2CE04511525 15.9 38.2 68.8 70
2CE04512025 21.2 51.0 84.7 90
460-3-60 5.9 42.0 1.0 2.2
None -- -- 10.6 15
2CE0451074626.8 8.2 20.8 25
2CE04511046210.1 12.1 25.8 30
2CE04511546213.6 16.4 31.0 35
2CE04512046219.5 23.5 39.9 40
575-3-60 4.8 34.0 1.0 2.2
None -- -- 8.6 15
2CE04511058 10.6 10.2 21.3 25
2CE04511558 15.9 15.3 27.7 30
2CE04512058 21.2 20.4 34.1 35
BCB048
208-3-60 14.7 130.0 2.3 5.0
None -- -- 25.7 35
2CE0451052524.0 11.1 39.6 50
2CE0451072525.6 15.5 45.1 50
2CE04511025 8.0 22.2 53.4 60
2CE04511525 11.9 33.0 67.0 70
2CE04512025 15.9 44.1 80.8 90
230-3-60 14.7 130 2.3 5.0
None -- -- 25.7 35
2CE0451052525.3 12.7 41.6 50
2CE0451072527.5 18.0 48.2 50
2CE04511025 10.6 25.5 57.5 60
2CE04511525 15.9 38.2 73.5 80
2CE04512025 21.2 51.0 89.4 90
460-3-60 7.7 64.0 1.3 2.2
None -- -- 13.1 20
2CE0451074626.8 8.2 23.3 25
2CE04511046210.1 12.1 28.3 30
2CE04511546213.6 16.4 33.6 35
2CE04512046219.5 23.5 42.4 45
575-3-60 6.4 52.0 1.3 2.2
None -- -- 10.8 15
2CE04511058 10.6 10.2 23.5 25
2CE04511558 15.9 15.3 29.9 30
2CE04512058 21.2 20.4 36.3 40

257098-BTG-A-0506
Unitary Products Group 17
MODEL VOLTAGE
COMPRESSORS OD FAN
MOTOR
FLA
ID
BLOWER
MOTOR
FLA
ELECTRIC HEATER
MODEL NO. HEATER KW HEATER AMPS
MIN.
CIRCUIT
AMPACITY
(AMPS)
MAX. FUSE/
BRKR1
SIZE
(AMPS)
RLA
EACH LRA EACH
BCB060
208-3-60 19.3 137.0 2.3 6.6
None -- -- 33.0 45
2CE0451052524.0 11.1 46.9 60
2CE0451072525.6 15.5 52.5 60
2CE04511025 8.0 22.2 60.8 70
2CE04511525 11.9 33.0 74.3 80
2CE04512025 15.9 44.1 88.2 90
2CE04513025 22.2 61.6 110.1 125
230-3-60 19.3 137.0 2.3 6.6
None -- -- 33.0 45
2CE0451052525.3 12.7 49.0 60
2CE0451072527.5 18.0 55.6 70
2CE04511025 10.6 25.5 64.9 70
2CE04511525 15.9 38.2 80.8 90
2CE04512025 21.2 51.0 96.8 100
2CE04513025 29.6 71.2 122.0 125
460-3-60 10.0 62.0 1.3 3.3
None -- -- 17.1 25
2CE0451074626.8 8.2 27.3 35
2CE04511046210.1 12.1 32.3 35
2CE04511546213.6 16.4 37.5 40
2CE04512046219.5 23.5 46.4 50
2CE04513046228.8 34.6 60.4 70
575-3-60 7.9 50.0 1.3 3.3
None -- -- 13.5 20
2CE04511058 10.6 10.2 26.2 30
2CE04511558 15.9 15.3 32.6 35
2CE04512058 21.2 20.4 39.0 40
2CE04513058 30.4 29.3 50.1 60
1. HACR Type per NEC.
2. These electric heaters do not include a fuse box. If a fuse box is required to meet a local code (i.e. Chicago), the fuse block
accessories 2FB04700825 and 2FB04700846 are available for field installation.
TABLE 14: ELECTRICAL DATA - BCB036 - 060 DIRECT DRIVE (CONTINUED)

257098-BTG-A-0506
18 Unitary Products Group
TABLE 15: ELECTRICAL DATA - BCB036 - 060 BELT DRIVE
MODEL VOLTAGE
COMPRESSORS OD FAN
MOTOR
FLA
ID
BLOWER
MOTOR
FLA
ELECTRIC HEATER
MODEL NO. HEATER KW HEATER AMPS
MIN.
CIRCUIT
AMPACITY
(AMPS)
MAX. FUSE/
BRKR1
SIZE
(AMPS)
RLA
EACH LRA EACH
BCB036
208-3-60 11.9 85.0 1.7 5.2
None -- -- 21.8 30
2CE0451052524.0 11.1 35.7 40
2CE0451072525.6 15.5 41.2 45
2CE04511025 8.0 22.2 49.5 50
2CE04511525 11.9 33.0 63.1 70
2CE04512025 15.9 44.1 76.9 80
230-3-60 11.9 85.0 1.7 5.2
None -- -- 21.8 30
2CE0451052525.3 12.7 37.7 45
2CE0451072527.5 18.0 44.3 50
2CE04511025 10.6 25.5 53.6 60
2CE04511525 15.9 38.2 69.6 70
2CE04512025 21.2 51.0 85.5 90
460-3-60 5.9 42.0 1.0 2.6
None -- -- 11.0 15
2CE0451074626.8 8.2 21.2 25
2CE04511046210.1 12.1 26.2 30
2CE04511546213.6 16.4 31.4 35
2CE04512046219.5 23.5 40.3 45
575-3-60 4.8 34.0 1.0 2.0
None -- -- 8.8 15
2CE04511058 10.6 10.2 21.5 25
2CE04511558 15.9 15.3 27.9 30
2CE04512058 21.2 20.4 34.3 35
BCB048
208-3-60 14.7 130.0 2.3 5.2
None -- -- 25.9 35
2CE0451052524.0 11.1 39.8 50
2CE0451072525.6 15.5 45.3 50
2CE04511025 8.0 22.2 53.6 60
2CE04511525 11.9 33.0 67.2 70
2CE04512025 15.9 44.1 81.0 90
230-3-60 14.7 130 2.3 5.2
None -- -- 25.9 35
2CE0451052525.3 12.7 41.8 50
2CE0451072527.5 18.0 48.4 50
2CE04511025 10.6 25.5 57.7 60
2CE04511525 15.9 38.2 73.7 80
2CE04512025 21.2 51.0 89.6 90
460-3-60 7.7 64.0 1.3 2.6
None -- -- 13.5 20
2CE0451074626.8 8.2 23.7 25
2CE04511046210.1 12.1 28.7 30
2CE04511546213.6 16.4 34.0 35
2CE04512046219.5 23.5 42.8 45
575-3-60 6.4 52.0 1.3 2.0
None -- -- 11.0 15
2CE04511058 10.6 10.2 23.8 25
2CE04511558 15.9 15.3 30.2 35
2CE04512058 21.2 20.4 36.5 40

257098-BTG-A-0506
Unitary Products Group 19
MODEL VOLTAGE
COMPRESSORS OD FAN
MOTOR
FLA
ID
BLOWER
MOTOR
FLA
ELECTRIC HEATER
MODEL NO. HEATER KW HEATER AMPS
MIN.
CIRCUIT
AMPACITY
(AMPS)
MAX. FUSE/
BRKR1
SIZE
(AMPS)
RLA
EACH LRA EACH
BCB060
208-3-60 19.3 137.0 2.3 5.2
None -- -- 31.6 40
2CE0451052524.0 11.1 45.5 60
2CE0451072525.6 15.5 51.1 60
2CE04511025 8.0 22.2 59.4 70
2CE04511525 11.9 33.0 72.9 80
2CE04512025 15.9 44.1 86.8 90
2CE04513025 22.2 61.6 108.7 110
230-3-60 19.3 137.0 2.3 5.2
None -- -- 31.6 40
2CE0451052525.3 12.7 47.6 60
2CE0451072527.5 18.0 54.2 60
2CE04511025 10.6 25.5 63.5 70
2CE04511525 15.9 38.2 79.4 80
2CE04512025 21.2 51.0 95.4 100
2CE04513025 29.6 71.2 120.6 125
460-3-60 10.0 62.0 1.3 2.6
None -- -- 16.4 25
2CE0451074626.8 8.2 26.6 30
2CE04511046210.1 12.1 31.6 35
2CE04511546213.6 16.4 36.8 40
2CE04512046219.5 23.5 45.7 50
2CE04513046228.8 34.6 59.7 60
575-3-60 7.9 50.0 1.3 2.0
None -- -- 12.9 20
2CE04511058 10.6 10.2 25.6 30
2CE04511558 15.9 15.3 32.0 35
2CE04512058 21.2 20.4 38.4 40
2CE04513058 30.4 29.3 49.4 50
1. HACR Type per NEC.
2. These electric heaters do not include a fuse box. If a fuse box is required to meet a local code (i.e. Chicago), the fuse block
accessories 2FB04700825 and 2FB04700846 are available for field installation.
TABLE 15: ELECTRICAL DATA - BCB036 - 060 BELT DRIVE (CONTINUED)

257098-BTG-A-0506
20 Unitary Products Group
TABLE 16: PHYSICAL DATA
MODELS BCB
036 048 060
EVAPORATOR
BLOWER
Centrifugal Blower (Dia. x Wd. in.) 12 X 10 12 X 10 12 X 10
Fan Motor HP (Direct Drive) 1/2 3/4 1
Fan Motor HP (Belt Drive) 1 1/2 1 1/2 1 1/2
EVAPORATOR
COIL
Rows Deep 4 3 3
Fins Per Inch 16 15 15
Face Area (Sq. Ft.) 4.3 5.1 5.1
CONDENSER
FANS
Propeller Dia. (in.) 22 22 24
Fan Motor Hp 1/3 1/2 1/2
Nom. CFM 4300 4200 4500
CONDENSER
COILS
Rows Deep 1 1 1
Fins Per Inch 20 20 20
Face Area (Sq. Ft.) 17.1 17.1 17.1
COMPRESSOR
(Qty. Per Unit) Reciprocating Type 1 1 1
AIR
FILTERS
Quantity Per Unit (15” X 20” X 1” or 2“) 2 2 2
Quantity Per Unit (14” X 25” X 1” or 2“) 1 1 1
Total Face Area (sq. ft.) 6.6 6.6 6.6
CHARGE Refrigerant 22
(lbs./oz.) 7/12 9/2 8/4
TABLE 17: ELECTRIC HEAT CORRECTION
FACTORS
NOMINAL VOLTAGE VOLTAGE kW CAP. MULTI-
PLIER
208 208 0.75
240 230 0.92
480 460 0.92
600 575 0.92
TABLE 18: VOLTAGE LIMITATIONS1
1. Utilization Range “A” in accordance with ARI Standard
110.
POWER SUPPLY VOLTAGE
MIN. MAX.
208/230-3-60 187 253
460-3-60 414 506
575-3-60 518 506