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Bryant 575A manual

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Table of contents for the manual

  • Page 1

    IMPORT ANT — READ BEFORE INST ALLING 1. Read and become familiar with these installation in- structions before installing this unit. 2. Be sure the installation conforms to all applicable local and national codes. 3. These instructions contain important information for the proper maintenance and repair of this equipment. Re- tain these instructio[...]

  • Page 2

    UNIT 575A UNIT W/ ALUMINUM-FIN COIL UNIT W/ COPPER-FIN COIL WEIGHT (WITH ALUMINUM-FIN COIL) WEIGHT (WITH COPPER-FIN COIL) Std Unit Corner W Corner X Corner Y Corner Z Std Unit Corner W Corner X Corner Y Corner Z Dim. A Dim. B Dim. A Dim. B Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg 090 1 8 -8 9 [508.0] 1 8 -5 9 [431.8] 1 8 -9 1 ⁄[...]

  • Page 3

    T able 1 — Physical Data UNIT 575A 090 OPERA TING WEIGHT (lb) Aluminum Coils (Standard) 540 Copper Coils (Optional) 608 RIGGING WEIGHT (lb) Aluminum Coils (Standard) 590 Copper Coils (Optional) 658 REFRIGERANT* R-22 COMPRESSOR Reciprocating, Semi-Hermetic Quantity ...T ype 1...06DA818 Quantity Cylinders 4 Speed (rpm) 1750 Oil Charge (oz) (ea) 88 [...]

  • Page 4

    III. COMPLETE REFRIGERANT PIPING CONNECTIONS Suction connection is sweat with plastic cap; liquid connec- tion is sweat with plastic cap. Refer to T able 2 for the proper line sizes. Follow standard piping practices. T able 2 — Refrigerant Piping Sizes LINEAR LENGTH OF PIPING — ft UNIT 575A 0-25 25-50 50-75 75-100 Line Size (in. OD) LSLSLSLS 09[...]

  • Page 5

    LEGEND NEC — National Electrical Code TXV — Thermostatic Expansion V alve *Accessory item. †Field supplied. NOTES: 1. All piping must follow standard refrigerant piping techniques. 2. All wiring must comply with the applicable local and national codes. 3. Wiring and piping shown are general points-of-connection guides only and are not intende[...]

  • Page 6

    IV . MAKE ELECTRICAL CONNECTIONS W ARNING: Unit cabinet must have an uninterrupted, unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur . This ground may consist of electrical wire connected to unit ground lug in control compartment, or conduit ap- proved for electrical ground when installed[...]

  • Page 7

    T able 4 — Electrical Data UNIT 575A NOMINAL VOL T AGE (V -Ph-Hz) VOL T AGE RANGE COMPRESSOR OFM POWER SUPPL Y MINIMUM DISCONNECT Min Max RLA LRA FLA MCA MAX FUSE OR HACR BRKR AMPS FLA LRA 090 208/230-3-60 187 254 31.5 160 3.1 42.5 50 45 177 460-3-60 414 508 15.7 80 1.4 21.0 25 25 89 LEGEND FLA — Full Load Amps HACR — Heating, Air Conditionin[...]

  • Page 8

    C. Field Control Wiring Install an approved accessory thermostat assembly accord- ing to installation instructions included with the accessory . Locate thermostat assembly on a solid wall in the condi- tioned space to sense average temperature in accordance with thermostat installation instructions. Route thermostat cable or equivalent single leads[...]

  • Page 9

    B. Oil Charging Allow unit to run for about 20 minutes. Stop unit and check compressor oil level. Add oil only if necessary to bring oil into view in sight glass. See T able 1 for oil charge. Use only ap- proved compressor oil as follows: Suniso 3GS and WF32-150 Do not reuse drained oil or use any oil that has been exposed to atmosphere. Procedures[...]

  • Page 10

    C. Defrost Defrost board (DB) is a time and temperature control, which includes a field-selectable time period between checks for frost (30, 50, and 90 minutes). Electronic timer and defrost cycle start only when contactor is energized and defrost thermo- stat (DFT) is closed (below 28 F). Defrost mode is identical to Cooling mode, except outdoor-[...]

  • Page 11

    SERVICE CAUTION: When servicing unit, shut of f all electri- cal power to unit to avoid shock hazard or injury from rotating parts. I. CLEANING Inspect unit interior at the beginning of each cooling season and as operating conditions require. A. Outdoor Coil Inspect coil monthly . Clean outdoor coil annually and as re- quired by location or outdoor[...]

  • Page 12

    II. LUBRICA TION A. Compressors Compressor has its own oil supply . Loss of oil due to a leak in the system should be the only reason for adding oil after the system has been in operation. See Start-Up, Oil Charging section. B. Fan Motor Bearings Fan motor bearings are permanently lubricated. No further lubrication is required. III. OUTDOOR F AN AD[...]

  • Page 13

    TROUBLESHOOTING CHART , HEA TING CYCLE LEGEND N.C. — Normally Closed —13—[...]

  • Page 14

    TROUBLESHOOTING CHART , COOLING CYCLE LEGEND TXV — Thermostatic Expansion V alve Copyright 1995 Carrier Corporation CA TALOG NO. BDP-3357-502[...]

  • Page 15

    ST ART -UP CHECKLIST I. PRELIMINAR Y INFORMA TION OUTDOOR: MODEL NO. INDOOR: MODEL NO. SERIAL NO. SERIAL NO. ADDITIONAL ACCESSORIES B. Pre-Start-Up OUTDOOR UNIT IS THERE ANY SHIPPING DAMAGE? (Y/N) IF SO, WHERE: WILL THIS DAMAGE PREVENT UNIT ST ART -UP? (Y/N) CHECK POWER SUPPL Y . DOES IT AGREE WITH UNIT? (Y/N) HAS THE GROUND WIRE BEEN CONNECTED? (Y[...]

  • Page 16

    C. Start-Up CHECK INDOOR-F AN SPEED AND RECORD. CHECK OUTDOOR-F AN SPEED AND RECORD. AFTER A T LEAST 15 MINUTES RUNNING TIME, RECORD THE FOLLOWING MEASUREMENTS: COOLING HEA TING OIL PRESSURE SUCTION PRESSURE SUCTION LINE TEMP DISCHARGE PRESSURE DISCHARGE LINE TEMP ENTERING OUTDOOR-AIR TEMP LEA VING OUTDOOR-AIR TEMP INDOOR ENTERING-AIR DB (dry bulb)[...]