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SAFETY CONSIDERATIONS

Due to system pressure, moving parts and electrical
components, installation and servicing of air conditioning
equipment can be hazardous. Only qualified, trained, service
personnel should install, repair, maintain or service this
equipment.

Observe all precautions in the literature, on labels and tags
accompanying the equipment whenever working on air
conditioning equipment. Be sure to follow all other safety
precautions that apply.

Wear safety glasses and work gloves, and follow all safety
codes. Use a quenching cloth and have a fire extinguisher
available for all brazing operations.

GENERAL

Model BCB units are single package heat pumps designed for
outdoor installation on a rooftop or a slab. Supplemental
electric heaters are available as field-installed accessories.

The units are completely assembled on rigid, permanently
attached base rails. All piping, refrigerant charge, and electrical
wiring is factory installed and tested. The units require only
electric power and duct connections at the point of installation.

The supplemental electric heaters have nickel-chrome
elements and utilize single point power connection.

INSPECTION

As soon as a unit is received, it should be inspected for possible
damage during transit. If damage is evident, the extent of the
damage should be noted on the carrier’s freight bill. A separate
request for inspection by the carrier’s agent should be made in
writing. Refer to Form 50.15-NM for additional information.

REFERENCE

Additional information on the design, installation, operation and
service of this equipment is available in the following reference
forms:

530.18-N9.1V

- Electric Heater Accessory

530.18-N3.2V

- Economizer Accessory

530.18-N3.8V

- Motorized Outdoor Air Damper Accy.

530.18-N3.9V

- Manual Outdoor Air Damper 0-35%

530.18-N3.10V - Manual Outdoor Air Damper 0-100%

530.18-N3.5V

- Fuse Block Accessory

Renewal Parts:

Refer to the Renewal Parts Manual for complete listing of
replacement parts on this equipment.

All forms referenced in this instruction may be ordered from:

Publications Distribution Center
Unitary Products Group
P.O. Box 1592, York, Pa.  17405

APPROVALS

Design certified by U.L. as follows:

1. For use as a heat pump only unit or a heat pump unit with

supplemental electric heat.

2. For outdoor installation only.

3. For installation on combustible material.

SINGLE PACKAGE HEAT PUMPS

7-1/2 & 10 TON

INSTALLATION
INSTRUCTION

Supersedes:  511.06-N2W (398)

511.06-N2Z (1298)

208/230/575 VOLT

MODELS ONLY

208/230/460 VOLT

MODELS ONLY

Installer should pay particular attention to the words:  

NOTE, CAUTION and WARNING. Notes are intended to clarify or

make the installation easier. Cautions are given to prevent equipment damage. Warnings are given to alert installer that per-
sonal injury and/or equipment damage may result if installation procedure is not handled properly.

MODELS BCCB 090 & 120,

MODELS BECB090 & 120

(9 EER)

035-16199

CAUTION

THIS PRODUCT MUST BE INSTALLED IN STRICT COMPLIANCE
WITH THE ENCLOSED INSTALLATION INSTRUCTIONS AND ANY
A PP LI CA BL E L OCA L,  STATE, AND NATIONAL CODES
INCLUDING, BUT NOT LIMITED TO, BUILDING, ELECTRICAL,
AND MECHANICAL CODES.

WARNING

INCORRECT INSTALLATION, ADJUSTMENT, ALTERATION,
SERVICE OR MAINTENANCE CAN CAUSE INJURY OR
PROPERTY DAMAGE. REFER TO THIS MANUAL.  FOR
ASSISTANCE OR ADDITIONAL INFORMATION, CONSULT A
QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS
SUPPLIER

Summary of Contents for BECB 090

Page 1: ...is available in the following reference forms 530 18 N9 1V Electric Heater Accessory 530 18 N3 2V Economizer Accessory 530 18 N3 8V Motorized Outdoor Air Damper Accy 530 18 N3 9V Manual Outdoor Air Damper 0 35 530 18 N3 10V Manual Outdoor Air Damper 0 100 530 18 N3 5V Fuse Block Accessory Renewal Parts Refer to the Renewal Parts Manual for complete listing of replacement parts on this equipment Al...

Page 2: ... 3 Physical Data 6 4 Point Loads 8 5 Supply Air Br Performance 9 6 Accessory Static Resistances 9 7 Blower Motor and Drive Data 10 8 Heat Anticipator Setting 11 9 Blower Motor Pulley Adjustment 11 FIGURES No Description Page 1 Center of Gravity 3 2 Recommended Drain Piping 4 3 Typical Field Wiring 5 4 Dimensions and Clearances 7 5 Point Loads 8 6 Pressure Drop versus Supply Air CFM 11 7 Defrost In...

Page 3: ...d is recommended to prevent mud splashing WARNING The unit should not be installed in an area where mud or ice could cause personal injury Remember that condensate will drip from the outdoor coil during heat and defrost cycles and that this con densate will freeze when the temperature of the outdoor air is below 32 F RIGGING AND HANDLING Exercise care when moving the unit Do not remove any packagi...

Page 4: ...l provide electric resistance heat only The compressors will not run The pilot light will indicate that the switch is on EM HT Nine conductors are required for this application POWER AND CONTROL WIRING Field wiring to the unit must conform to provisions of the National Electrical Code ANSI NFPA latest edition and or local ordinances The unit must be electrically grounded in accordance with N E C A...

Page 5: ...14 1 7 1 5 8 130 64 52 2 3 1 3 1 3 5 7 2 6 2 1 7 5 3 4 2 7 42 0 21 1 17 7 43 8 21 9 18 3 50 25 20 50 25 20 120 208 230 3 60 460 3 60 575 3 60 16 7 17 3 9 6 8 3 150 73 62 3 5 2 5 2 5 7 5 3 4 2 7 10 6 4 8 3 9 52 8 30 0 26 5 55 9 31 4 27 7 70 35 30 70 40 35 NOTES 1 Dual element time delay type 2 Maximum HACR breaker of the same AMP size is applicable Dual numbers indicate amps for compressor 1 2 resp...

Page 6: ...3 FINS PER INCH 15 13 FACE AREA Sq Ft 7 8 13 4 OUTDOOR FANS Two Per Unit PROPELLER DIA in 24 ea 24 ea FAN MOTOR HP 1 2 ea 3 4 ea NOM CFM TOTAL 2900 ea 4400 ea OUTDOOR COIL ROWS DEEP 2 2 FINS PER INCH 13 15 FACE AREA Sq Ft 20 0 29 3 AIR FILTERS SEE NOTE QUANTITY PER UNIT 12 X 24 X 2 2 QUANTITY PER UNIT 16 X 24 X 2 2 3 QUANTITY PER UNIT 18 X 24 X 2 2 TOTAL FACE AREA sq ft 9 3 14 0 CHARGE REFRIGERANT...

Page 7: ...Control Wiring Side 7 8 Bottom B 2 Power Wiring Side or Bottom Knockouts in the bottom of the unit can be located by the slice in the insulation UTILITIES ENTRY DATA RETURN AIR SUPPLY AIR OUTDOOR AIR OUTDOOR AIR Economizer L H E N D V I E W 3 3 4 A 2 7 3 4 C O N D E N S A T E D R A I N M U S T B E T R A P P E D 7 B P O W E R W I R I N G E N T R Y 2 9 5 8 3 1 2 4 1 2 7 1 E C O N O M I Z E R R A I N...

Page 8: ...1 355 460 388 NOTE These weights are with economizer and 36 kW electric heat UNIT BCB 6 POINT LOADS LBS TOTAL A B C D E F 090 1 154 154 188 211 235 193 173 120 1 504 200 237 272 307 259 229 NOTE These weights are with economizer and 24 kW electric heat TABLE 4 FOUR AND SIX POINT LOADS LBS A E D B F C FRONT 6 POINT LOADS 511 06 N2W 8 Unitary Products Group ...

Page 9: ...4 2 62 2 45 0 92 2 91 2 72 1050 1 89 1 98 1 84 1 78 2 25 2 10 1 57 2 55 2 37 1 35 2 86 2 67 1 12 3 17 2 96 1090 2 08 2 12 1 97 1 97 2 41 2 24 1 78 2 72 2 54 1 55 3 06 2 86 MODEL BCB120 SIDE DUCT APPLICATIONS BLOWER SPEED RPM CFM 3000 3500 4000 4500 5000 ESP BHP KW ESP BHP KW ESP BHP KW ESP BHP KW ESP BHP KW 860 1 01 1 40 1 31 0 80 1 58 1 48 0 54 1 80 1 68 0 23 2 05 1 9114 915 1 19 1 55 1 45 1 00 1...

Page 10: ...e compressors out when the suction line temperature drops below 26 F This is an automatic reset device HEATING SEQUENCE OF OPERATION The following sequence of operation is based on using a standard YORK heat pump two stage heating two stage cooling thermostat subbase Economizer if supplied operation is not allowed in the heating mode however the minimum position does operate FIRST STAGE HEAT When ...

Page 11: ...e filter access and the blower access panels as shown in Figure 4 2 Insert at least 8 of 1 4 inch tubing into each of these holes for sufficient penetration into the air flow on both sides of the indoor coil NOTE The tubes must be inserted and held in a position perpendicular to the air flow so that velocity pres sure will not affect the static pressure readings 3 Using an inclined manometer deter...

Page 12: ...frost time cycle will restart 10 minutes after the start of the defrost cycle even though the liquid sensor terminated defrost after 3 minutes During troubleshooting the defrost time can be reduced to 20 seconds by shorting out the SW1 test pins on the module The pins are 1 2 long 3 16 apart and are mounted on a white base See Figure 10 LOCKOUT CONTROL Any one of four conditions will put the syste...

Page 13: ... power to the unit to prevent personal injury FILTERS Inspect once a month Replace disposable or clean permanent type as necessary DO NOT replace permanent type with disposable MOTORS Indoor fan and outdoor fan motors are permanently lubricated and require no maintenance SECURE OWNER S APPROVAL When the system is functioning properly secure the owner s approval Show him the location of all disconn...

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Page 16: ...des 511 06 398 Subject to change without notice Printed in U S A Copyright by Unitary Products Group 1998 All rights reserved 511 06 N2Z Code SBL F 5005 York Drive Norman Oklahoma 73069 Unitary Products Group ...

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