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ALWAYS MEASURE START WINDING CURRENT ON START-UP!
NORMALLY 2 to 10 AMPS (See Page 5 for Details)
BEFORE A SUSPECT COMPRESSOR IS REMOVED, ALWAYS
CHECK LOCKED ROTOR PULL-DOWN VOLTAGE
A & B SERIES
INSTALLATION & SERVICE INSTRUCTIONS
REFRIGERATION/AIR CONDITIONING/HEAT PUMP COMPRESSORS
CAUTION: Bristol compressors are completely interchangeable with other
manufacturers. However, electrical specifications, tubing configurations,
and wiring connections may vary. Before installing and starting this
compressor, you must review the wiring diagrams and check for correct
electrical components.
WARNING
AND
(See Page 2 for Details)
BRISTOL COMPRESSORS, INC.
BRISTOL, VIRGINIA 24202
(276) 466-4121
FAX (276) 645-2423
REVISED:
5/03
SUPERSEDES: 2/98
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Summary of Contents for Bristol A Series
- Page 1 A & B SERIES INSTALLATION & SERVICE INSTRUCTIONS REFRIGERATION/AIR CONDITIONING/HEAT PUMP COMPRESSORS CAUTION: Bristol compressors are completely interchangeable with other manufacturers. However, electrical specifications, tubing configurations, and wiring connections may vary. Before installing and starting this compressor, you must review the wiring diagrams and check for correct electrical components.
- Page 2 Please use this as a checklist, taking each item in its order before proceeding to the next. If more information is required, please call Bristol Compressors’ Service Department. VERIFY PROPER APPLICATION. Verify that the compressor being replaced and the Bristol compressor have a like capacity for the refrigerant being used and that the voltage and frequency characteristics are the same.
- Page 3 INSTALL FILTER DRIERS. Bristol Compressors recommends the use of new adequately sized liquid and suction line driers anytime a compressor is replaced. If the new compressor is to be used to replace a compressor with a burned motor, the use of a high acid neutralizing filter drier is recommended.
- Page 4 Verify that the electrical system is wired according to the unit’s manufacturer and Bristol’s wiring diagram on page 9. Verify that the electrical components match those specified on the compressor electrical data sheet on pages 10 through 14. Start components (start capacitor and relay) are required on all systems that incorporate a hard shut-off or non-bleed thermostatic expansion valve.
- Page 5 CHARGE THE SYSTEM. When a vacuum of at least 200 microns is reached, close gauge valve, remove vacuum pump, and break the vacuum using system refrigerant vapor. Never dump liquid refrigerant into the compressor. Liquid can be used to break the vacuum if it is connected to the liquid line, not the discharge line.
- Page 6 FOR CAPACITOR START/CAPACITOR RUN (CSR) MODELS PUT YOUR CLAMP-ON AMMETER HERE START POTENTIAL WINDING CAPACITOR RELAY LINE LINE WINDING AMPS SHOULD DROP TO IDENTIFIED TERMINAL "0" AFTER START TO LINE SIDE START BLEED CAPACITOR RESISTOR FOR CAPACITOR START INDUCTION RUN (CSIR) MODELS PUT YOUR CLAMP-ON AMMETER HERE START POTENTIAL...
- Page 7 VERIFY SYSTEM WILL NOT ALLOW LIQUID FLOODBACK. HEAT PUMP STEP 1: Operate system in the heating mode with outdoor fan disconnected. STEP 2: Run system until the designed winter condition in your area is reached (may need to cover coil for this test).
- Page 8 Liquid Line Filter: Always replace the original equipment liquid line filter drier(s). If the OEM liquid line drier(s) is not removed from the system, a restriction most likely will result. A slight restriction in this filter will reduce the efficiency of the system. A large restriction will cause the suction pressure and discharge pressure to be reduced.
- Page 9 START ASSIST WIRING DIAGRAM (START AND RUN CAPACITORS): START POTENTIAL WINDING CAPACITOR RELAY LINE LINE WINDING IDENTIFIED TERMINAL TO START LINE SIDE CAPACITOR BLEED RESISTOR Use this diagram on systems with expansion valve and systems that do not allow pressure equalization prior to compressor start.
- Page 10 AIR CONDITIONING & HEAT PUMP ELECTRICAL SUCTION PROCESS COMPONENTS PARTS FOR SINGLE PHASE COMPRESSORS H24B SERIES 60 HZ DISCHARGE Capacitors Potential Relays Voltage Start Mars Compressor Phase PTCR µfd/Volts µfd/Volts CRANKCASE HEATER Model Number 3ARR3 6-Pak Starter RECEPTACLE (THIS END) H24B13QABCA 230/208-1-60 15/370 88-108/250...
- Page 11 AIR CONDITIONING & HEAT PUMP ELECTRICAL COMPONENTS PARTS FOR SINGLE PHASE COMPRESSORS H29B SERIES 60 HZ (Continued) Compressor Voltage Capacitors Potential Relays Model Number Phase Hz Start Mars PTCR µfd/Volts µfd/Volts 3ARR3 Starter 6-Pak H29B32UABC 230/208-1-60 40/370 145-175/250 16050 Optional H29B32UABH 265-1-60 30/440...
- Page 12 H24B SERIES 50 HZ Voltage Capacitors Potential Relays Compressor Phase Start Mars µfd/Volts µfd/Volts Model Number 3ARR3 6-Pak PTCR Starter H24B15QABH 220/240-1-50 20/370 88-108/250 10AT Optional H24B17QABH 220/240-1-50 25/370 88-108/250 10AT Optional H24B19QABK 220/240-1-50 25/370 88-108/330 25AS Optional H24B SERIES 50 HZ (Continued) Voltage Capacitors Potential Relays...
- Page 13 H73A SERIES 50 HZ Voltage Capacitors Potential Relays Compressor Phase Start Mars µfd/Volts µfd/Volts Model Number 3ARR3 6-Pak PTCR Starter H73A263ABH 220/240-1-50 35/370 145-175/250 10AS Optional H73A283ABK 220/240-1-50 35/370 145-175/250 10AS Optional H73A303ABH 220/240-1-50 35/370 145-175/250 10AS Optional H73A323ABH 220/240-1-50 40/370 145-175/250 10AT...
- Page 14 H23B SERIES 50 HZ (Continued) Voltage Capacitors Potential Relays Compressor Phase Start Mars µfd/Volts µfd/Volts Model Number 3ARR3 6-Pak PTCR Starter H23B303ABK 220/240-1-50 45/440 88-108/250 25AS Optional H23B30QABK 220/240-1-50 45/440 88-108/250 25AS Optional H23B30SABH 220/240-1-50 40/370 145-175/250 16067 Optional H23B323ABK 220/240-1-50 45/370 88-108/250...
- Page 15 PRESSURE-TEMPERATURE RELATION CHART TEMPERATURE °F TEMPERATURE °F R404A R-407C R404A R-407C Saturated Saturated Saturated Saturated Saturated Saturated PSIG R-22 R-502 R-12 134a Vap/Liq. Vapor Liquid PSIG R-22 R-502 R-12 134a Vap/Liq. Vapor Liquid -41.0 -54.0 34.9 23.4 -39.5 -52.6 36.4 24.9 -38.1 -51.2...
- Page 16 PED LABEL INFORMATION Explanation of the European Pressure Equipment Directive (PED) label information (if the compressor is PED-approved): • The first five digits of the 11-digit serial number give the manufacture and leak test date of the compressor. The first three digits represent the day of the year (for example: 059 = February 28). The next two digits represent the year (for example: 02 = 2002).
- Page 17 .......... P = Pilot Duty – Solid State .......... R = Pilot Duty – Solid State (2 Generation) 00235 0 or 2 = Bristol .......... T = Pilot Duty – Internal Thermostat and External Sensing Elements 02 = 2002 00235 = 235 unit of the day Motor Type......
- Page 18 200022 EN Release 097X01 EN Revision K34005 5/03 Page 18...
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