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Содержание 541A

Страница 1: ...ow clearance wiring refrig erant piping and servicing unit See Fig 1 3 for unit dimensions Figure 4 shows typical component locations for 541A180 units Locate unit so that outdoor coil airflow is unre...

Страница 2: ...it securely to pad or supports after unit is in position and is level Be sure to mount unit level to ensure proper oil return to compressors Mounting holes on unit can be used to secure unit to vibrat...

Страница 3: ...3 Fig 2 575C090 120 Unit Dimensions...

Страница 4: ...lows local codes or jurisdictions may prevail Side compressor 31 2 ft 1067 mm Side opposite compressor 3 ft 914 mm Ends 2 ft 616 mm Top 5 ft 1524 mm WEIGHT DISTRIBUTION UNIT 541A WEIGHT lb kg Total Op...

Страница 5: ...rol Solenoid 4 Compressor Lockout CLO Device 23 Filter Drier 5 Outdoor Fan Relay 14 Control Relay CR3 24 Muffler 6 Outdoor Fan Contactor 15 Liquid Line Solenoid 25 Oil Solenoid 7 Compressor Contactor...

Страница 6: ...ting Charge Typical lb 20 20 22 37 Shipping Charge lb 1 9 9 3 COMPRESSOR Scroll Semi hermetic reciprocating Qty Model 1 SR_75 1 ZR_94 1 ZR125 1 06DF537 Oil Charge oz 88 90 110 128 No Cylinders N A 6 S...

Страница 7: ...drop Complete the refrigerant piping from indoor unit to outdoor unit before opening the liquid and vapor lines at the outdoor unit For specific filter driers see Table 4 D Liquid Line Piping Procedu...

Страница 8: ...ration only Wind baffles field supplied and field installed are recommended for all units with low ambient head pressure control Refer to Low Ambient Control Installation Instructions shipped with acc...

Страница 9: ...ystem is to be shut down for a prolonged period it is recommended that the suction and discharge valves be closed to prevent an excessive accumulation of refrigerant in the com pressor oil 3 Terminals...

Страница 10: ...MOCP values are calculated in accordance with the NEC Article 440 2 Motor RLA and LRA values are established in accordance with Underwriters Laboratories UL Standard 1995 3 The 575 v units are UL Can...

Страница 11: ...al Electrical Code NFPA No 70 and in conformance with local codes and authorities having jurisdiction 2 For use with copper conductors only BK Black BL Blue O Orange R Red W White Y Yellow CAUTION Not...

Страница 12: ...IP Equipment GND Ground HC Heater Contactor IFC Indoor Fan Contactor IFM Indoor Fan Motor NEC National Electrical Code TB Terminal Block Fig 11 Wiring Diagram 541A180 Unit With Standard Thermostat and...

Страница 13: ...RCUIT BREAKER 5 HP AND LARGER UNIT WIRING IFM BLK BLK BLK 21 22 23 12 13 11 1 2 3 HTR1 IFC RELAY BOARD 33ZCRLYBRD TSTAT CR Y2 R Y1 C X W1 W2 G Y2 R Y1 C X W1 W2 G CR LEGEND NOTE Use copper conductors...

Страница 14: ...W2 G C X CR LEGEND Do not configure TSTAT for heat pump NOTE Use copper conductors only CR Control Relay Field Supplied EQUIP Equipment GND Ground HC Heating Contactor HTR Electric Heater IFC Indoor...

Страница 15: ...g do not exceed 150 psi b Using soap bubbles and or an electronic leak detector test refrigerant piping connections and joints and the indoor coil See Fig 16 c Check for leaks Evacuate and dehydrate e...

Страница 16: ...f the unit power leads 4 Reapply power to the compressor verify correct pressures The suction and discharge pressure levels should now move to their normal start up levels II COMPRESSOR OVERLOAD This...

Страница 17: ...us operating conditions Accurate pressure gage and temperature sensing device are required Connect the pressure gage to the service port on the liquid line service valve Mount the temperature sensing...

Страница 18: ...warm air supplying the conditioned space Defrost mode is terminated when the DFT reaches 65 F D Air Circulation When the fan switch is at FAN ON the indoor air fans oper ate continuously to provide ve...

Страница 19: ...ise the circuit is completed from R to Y2 and the Cooling mode is initiated in Heat Pump B in a similar manner When the thermostat is satisfied the contacts open deener gizing first the Heat Pump B an...

Страница 20: ...pressor 5 Remove screws from compressor mounting plate 6 Remove or disconnect crankcase heater from com pressor base 7 Remove compressor from unit 8 On 541A180 unit remove compressor holddown bolts an...

Страница 21: ...frigerant is then directed to flow through check valve C which is open through the filter drier and into the liquid header assembly 3 The liquid refrigerant is expanded as it passes through the capill...

Страница 22: ...G DEVICE FILTER DRIER CK VALVE C CK VALVE A CK VALVE B FILTER DRIER COMPR CK VALVE B CK VALVE A CK VALVE C LLSV LIQUID HOT GAS GAS AND OIL MUFFLER ACCUMULATOR REVERSING VALVE REFRIGERANT MIXTURE FROM...

Страница 23: ...hich secure tube sheets and replace top cover and rear corner posts 7 Restore unit power B Cleaning and Maintaining E Coated Coils Routine cleaning of coil surfaces is essential to maintain proper ope...

Страница 24: ...struc tions included with the cleaner The optimum solution temperature is 100 F 4 Thoroughly apply Environmentally Sound Coil Cleaner solution to all coil surfaces including finned area tube sheets an...

Страница 25: ...25 TROUBLESHOOTING CHART HEATING CYCLE LEGEND CCH Crankcase Heater N C Normally Closed...

Страница 26: ...Copyright 2004 Bryant Heating Cooling Systems Printed in U S A CATALOG NO 5357 506 TROUBLESHOOTING CHART COOLING CYCLE LEGEND CCH Crankcase Heater TXV Thermostatic Expansion Valve...

Страница 27: ...ALL WIRING TERMINALS including main power supply TIGHT Y N ______________ HAS CRANKCASE HEATER BEEN ENERGIZED FOR 24 HOURS Y N ______________ INDOOR UNIT HAS WATER BEEN PLACED IN DRAIN PAN TO CONFIRM...

Страница 28: ...WING OIL LEVEL IN VIEW Y N NOTES ______________________________________________________________________________________________________________ ________________________________________________________...

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