Unitary products group BCB Series Technical Manual

Unitary products group BCB Series Technical Manual

Single package heat pump units

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ECHNICAL
ECHNICAL
GUIDE
GUIDE
SINGLE PACKAGE HEAT PUMP UNITS
BCB 036, 048 & 060
3, 4 & 5 NOMINAL TONS
10.0 SEER
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
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.
257098-BTG-A-0506

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Summary of Contents for Unitary products group BCB Series

  • Page 1 GUIDE 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.
  • Page 2: Table Of Contents

    INDOOR BLOWER DIAGRAM ....35 19 HEAT PUMP POWER CIRCUIT 575-3-60 BELT DRIVE INDOOR BLOWER DIAGRAM ....36 Unitary Products Group...
  • Page 3: Product Nomenclature

    Optionally, the control board can be pro- hour salt spray test approval under ASTM-B117 procedures. grammed to lockout the compressors when the outdoor air temperature is low or when free cooling All models are CSA listed. is available. Unitary Products Group...
  • Page 4: Unit Cutaway

    FIGURE 1 - UNIT CUTAWAY Unitary Products Group...
  • Page 5: Factory-Installed Options

    The rain hood is painted to match the basic unit and must be field assembled before installing. • MANUAL OUTDOOR AIR DAMPERS - Provide 0% to 100% outdoor air capability. • ELECTRIC HEATERS - wired for single point power supply. These nickel chromium heater elements are pro- Unitary Products Group...
  • Page 6 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.) Unitary Products Group...
  • Page 7 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. NOMINAL RATING Unitary Products Group...
  • Page 8 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. NOMINAL RATING Unitary Products Group...
  • Page 9 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. NOMINAL RATING Unitary Products Group...
  • Page 10 29.6 36.6 43.3 52.6 61.4 71.8 2000 15.9 21.6 27.2 33.7 39.8 48.4 56.5 66.1 16.2 27.8 34.3 41.4 50.2 58.7 68.6 15.6 21.2 26.7 39.8 48.3 56.4 1500 14.4 19.5 24.6 30.4 36.6 44.5 51.9 60.7 Unitary Products Group...
  • Page 11: Supply Air Blower Performance (3 Ton Belt Drive) - Side Duct Application

    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. Unitary Products Group...
  • Page 12: Supply Air Blower Performance (4 Ton Belt Drive) - Side Duct Application

    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. Unitary Products Group...
  • Page 13: Supply Air Blower Performance (5 Ton Belt Drive) - Side Duct Application

    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. Unitary Products Group...
  • Page 14: Supply Air Blower Performance (3 - 5 Ton Direct Drive) - Side Duct Application

    2.4-3.4 AK56 37.3 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. Unitary Products Group...
  • Page 15: Electric Heater Cfm Limitations

    575-3-60 1200 1200 1300 208/230-3-60 1300 1300 1300 1300 1300 460-3-60 1300 1300 1300 1300 575-3-60 1300 1300 1400 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 Unitary Products Group...
  • Page 16: Electrical Data - Bcb036 - 060 Direct Drive

    21.2 51.0 89.4 None 13.1 2CE04510746 23.3 460-3-60 64.0 2CE04511046 10.1 12.1 28.3 2CE04511546 13.6 16.4 33.6 2CE04512046 19.5 23.5 42.4 None 10.8 2CE04511058 10.6 10.2 23.5 575-3-60 52.0 2CE04511558 15.9 15.3 29.9 2CE04512058 21.2 20.4 36.3 Unitary Products Group...
  • Page 17: Electrical Data - Bcb036 - 060

    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. Unitary Products Group...
  • Page 18 21.2 51.0 89.6 None 13.5 2CE04510746 23.7 460-3-60 64.0 2CE04511046 10.1 12.1 28.7 2CE04511546 13.6 16.4 34.0 2CE04512046 19.5 23.5 42.8 None 11.0 2CE04511058 10.6 10.2 23.8 575-3-60 52.0 2CE04511558 15.9 15.3 30.2 2CE04512058 21.2 20.4 36.5 Unitary Products Group...
  • Page 19 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. Unitary Products Group...
  • Page 20: Physical Data

    TABLE 17: ELECTRIC HEAT CORRECTION TABLE 18: VOLTAGE LIMITATIONS FACTORS VOLTAGE POWER SUPPLY kW CAP. MULTI- MIN. MAX. NOMINAL VOLTAGE VOLTAGE PLIER 208/230-3-60 0.75 460-3-60 0.92 575-3-60 0.92 1. Utilization Range “A” in accordance with ARI Standard 0.92 110. Unitary Products Group...
  • Page 21 REMOVE JUMPER J2 FROM TERMINALS 4 AND 9 ON JUMPER PLUG CONNECTOR P6 ON UNITS WITH ECONOMIZER. TERMINALS A1 AND A2 PROVIDE A RELAY OUT-PUT TO CLOSE THE OUTDOOR ECONOMIZER DAMPERS WHEN THE THERMOSTAT SWITCHES TO THE SET-BACK POSITION. FIGURE 2 - TYPICAL FIELD POWER & CONTROL WIRING Unitary Products Group...
  • Page 22: Unit Dimensions (3 - 5 Ton Heat Pump)

    257098-BTG-A-0506 FIGURE 3 - UNIT DIMENSIONS (3 - 5 TON HEAT PUMP) FRONT VIEW DETAIL “A” FIGURE 4 - UNIT WITH ECONOMIZER RAINHOOD Unitary Products Group...
  • Page 23: Unit With Fixed Outdoor Air/Motorized

    257098-BTG-A-0506 DETAIL “B” FIGURE 5 - UNIT WITH FIXED OUTDOOR AIR/MOTORIZED DAMPER RAINHOOD FIGURE 6 - UNIT DIMENSIONS (REAR VIEW) Unitary Products Group...
  • Page 24 1. Units may be installed on combustible floors made from wood or class A, B, or C roof covering material. 2. Units must be installed outdoors. Overhanging struc- tures or shrubs should not obstruct condenser air dis- charge outlet. Unitary Products Group...
  • Page 25 257098-BTG-A-0506 FIGURE 8 - TYPICAL APPLICATIONS Unitary Products Group...
  • Page 26: Four And Six Point Loading

    3 TON 4 TON 5 TON BASIC UNIT Economizer Motorized Damper 5 - 7 kW OPTIONS Electric Heater 10 - 15 kW 20 - 30 kW ACCY. Roof Curb Barometric Relief / Fixed Air Damper Belt-Drive Blower Unitary Products Group...
  • Page 27 257098-BTG-A-0506 FIGURE 10 - ROOF CURB DIMENSIONS Unitary Products Group...
  • Page 28: Heat Pump With Electric Heat Control Circuit 208/230-3-60 Diagram

    257098-BTG-A-0506 FIGURE 11 - HEAT PUMP WITH ELECTRIC HEAT CONTROL CIRCUIT 208/230-3-60 DIAGRAM Unitary Products Group...
  • Page 29: Heat Pump With Electric Heat Control Circuit 460-3-60 Diagram

    257098-BTG-A-0506 FIGURE 12 - HEAT PUMP WITH ELECTRIC HEAT CONTROL CIRCUIT 460-3-60 DIAGRAM Unitary Products Group...
  • Page 30: Heat Pump With Electric Heat Control Circuit 575-3-60 Diagram

    257098-BTG-A-0506 FIGURE 13 - HEAT PUMP WITH ELECTRIC HEAT CONTROL CIRCUIT 575-3-60 DIAGRAM Unitary Products Group...
  • Page 31: Heat Pump Power Circuit 208/230-3-60 Direct Drive Indoor Blower Diagram

    257098-BTG-A-0506 FIGURE 14 - HEAT PUMP POWER CIRCUIT 208/230-3-60 DIRECT DRIVE INDOOR BLOWER DIAGRAM Unitary Products Group...
  • Page 32: Heat Pump With Electric Heat Power Circuit

    257098-BTG-A-0506 FIGURE 15 - HEAT PUMP WITH ELECTRIC HEAT POWER CIRCUIT 208/230-3-60 BELT DRIVE INDOOR BLOWER DIAGRAM Unitary Products Group...
  • Page 33: Heat Pump Power Circuit 460-3-60 Direct Drive Indoor Blower Diagram

    257098-BTG-A-0506 FIGURE 16 - HEAT PUMP POWER CIRCUIT 460-3-60 DIRECT DRIVE INDOOR BLOWER DIAGRAM Unitary Products Group...
  • Page 34: Heat Pump Power Circuit 460-3-60 Belt Drive Indoor Blower Diagram

    257098-BTG-A-0506 FIGURE 17 - HEAT PUMP POWER CIRCUIT 460-3-60 BELT DRIVE INDOOR BLOWER DIAGRAM Unitary Products Group...
  • Page 35: Heat Pump Power Circuit 575-3-60 Direct Drive Indoor Blower Diagram

    257098-BTG-A-0506 FIGURE 18 - HEAT PUMP POWER CIRCUIT 575-3-60 DIRECT DRIVE INDOOR BLOWER DIAGRAM Unitary Products Group...
  • Page 36: Heat Pump Power Circuit 575-3-60 Belt Drive Indoor Blower Diagram

    257098-BTG-A-0506 FIGURE 19 - HEAT PUMP POWER CIRCUIT 575-3-60 BELT DRIVE INDOOR BLOWER DIAGRAM Unitary Products Group...
  • Page 37: Guide Specifications

    Aluminum foil faced insulation shall be used in the GENERAL furnace compartment and be fastened with ridged fasteners Units shall be manufactured by Unitary Products Group in an to prevent insulation from entering the air stream. Cabinet ISO 9001 certified facility.
  • Page 38 An electric heating section, with nickel chromium elements, ters shall be provided. Simultaneous economizer/com- shall be provided in a range of 5 thru 30 KW, offering two stages of capacity - 16 KW and above on 208/230 volt heat- Unitary Products Group...
  • Page 39 Dampers return to the fully closed position bling. when the indoor fan motor is de-energized. Dampers • MANUAL OUTDOOR AIR DAMPER shall fully close on power loss. • COIL GUARD KIT - Guard for condenser coil. • HAIL GUARD Unitary Products Group...
  • Page 40 Subject to change without notice. Printed in U.S.A. 257098-BTG-A-0506 Copyright © 2006 by Unitary Products Group. All rights reserved. Supersedes: 036-21565-003-A-1005 Unitary 5005 Norman Products York Group Drive 73069...

This manual is also suitable for:

Bcb 036Bcb 048Bcb 060

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