Résumé du contenu de la page N° 1
installation, start-up and
569C
service instructions
576B
COMMERCIAL AIR-COOLED
CONDENSING UNITS
Cancels: II 569C-72-4 II 569C-72-5
8/15/00
IMPORTANT — READ BEFORE INSTALLING
1. Read and become familiar with these installation
instructions before installing this unit (Fig. 1).
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.
Retain these instructions for fu
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INSTALLATION using unit frame as a reference. See Table 1 and Fig. 3 for additional information. Operating weight is shown in NOTE: When installing any accessory item, see the manufac- Table 1. turer’s installation instructions packaged with the accessory. These units are designed for overhead rigging only. Rig with A qualified agency must use factory-authorized kits or acces- packaging assembly and wood bumper strips in place to pre- sories when modifying this unit. vent unit damage by rigging
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Table 1 — Physical Data UNIT 569C072 569C090 569C120 576B090 576B102 576B120 1 1 1 NOMINAL CAPACITY (tons) 67 / 10 7 / 8 / 10 2 2 2 OPERATING WEIGHT (lb) Aluminum Coils (Std) 340 392 426 510 564 564 Copper Coils (Optional) 386 460 503 578 632 632 RIGGING WEIGHT (lb) Aluminum Coils (Std) 390 420 445 560 614 614 Copper Coils (Optional) 436 488 522 628 682 682 REFRIGERANT* R-22 Operating Charge† Typical (lb) 11.4 13.6 16.5 14.3 16.4 16.4 Shipping Charge (lb) 2.0 2.0 2.0 2.0 2.0 2.0 Reciprocating, C
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DIMENSIONS (ft-in.) ELECTRICAL CONNECTIONS CONNECTION SIZES UNIT A B C D E F 3 AA 1 / ″ Dia Field Power Supply Hole 8 With Aluminum Coils (Standard) BB 2″ Dia Power Supply Knockout 1 3 1 5 5 569C072 1-6 / 1-2 / —1-2 / 1-4 / 2-9 / 2 4 4 16 16 1 CC 2 / ″ Dia Power Supply Knockout 2 1 13 5 7 569C090 1-8 1-6 / 2-9 / 1-3 2- / 3-5 / 2 16 16 16 7 DD / ″ Dia Field Control Wiring Hole 8 5 7 569C120 1-9 1-8 2-0 1-3 2- / 3-5 / 16 16 SERVICE VALVE CONNECTIONS 3 13 5 7 576B090 1-6 1-4 / 2-9 / 1-3 2- / 3-5 /
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Table 2 — Refrigerant Piping Sizes NOTICE TO RIGGERS HOOK RIGGING SHACKLES THROUGH HOLES IN BASE RAIL, ON ALL FOUR SIDES. HOLES IN BASE RAILS ARE CENTERED AROUND THE UNIT CENTER OF GRAVITY. USE LINEAR LENGTH OF PIPING — FT (M) WOODEN TOP SKID, WHEN RIGGING, TO PREVENT RIGGING STRAPS FROM DAMAGING UNIT. ALL PANELS MUST BE IN PLACE WHEN RIGGING. CAUTION: 0-25 25-50 50-75 75-100 (0-7.6) (7.6-15.2) (15.2-22.9) (22.9-30.5) UNIT Line Size (in. OD) L S L S LS LS 1 1 1 1 1 1 1 1 569C072 / 1 / / 1 / / 1
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the current within 10%. Use the formula shown in Table 4, Note 2, to determine the percent voltage imbalance. Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electrical components. Such opera- tion would invalidate any applicable warranty. 4. Insulate low-voltage wires for highest voltage con- tained within conduit when low-voltage control wires are run in same conduit as high-voltage wires. 5. Do not damage internal components when drill
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Table 4 — Electrical Data VOLTAGE RANGE COMPRESSOR OFM POWER SUPPLY NOMINAL VOLTAGE UNIT (V-Ph-Hz) Min Max RLA LRA FLA MCA MOCP 208/230-3-60 187 254 21.8 158 1.9 30.1 40 569C072 460-3-60 414 508 10.0 79 1.0 13.5 20 575-3-60 518 632 9.0 65 1.9 14.1 20 208/230-3-60 187 254 28.8 195 3.8 39.8 50 569C090 460-3-60 414 508 14.7 95 1.9 20.3 25 575-3-60 518 632 10.8 80 1.9 15.4 20 208/230-3-60 187 254 37.8 239 3.1 51.1 70 569C120 460-3-60 414 508 17.2 125 1.4 23.4 30 575-3-60 518 632 14.3 90 1.4 19.8 25
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PRE-START-UP WARNING: Failure to observe the following warn- ings could result in serious personal injury: 1. Follow recognized safety practices and wear protective goggles when checking or servicing refrigerant system. 2. Do not operate compressor or provide any elec- tric power to unit unless compressor terminal cover is in place and secured. 3. Do not remove compressor terminal cover until all electrical sources have been disconnected. 4. If refrigerant leak is suspected around compres- sor
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START-UP thermostat is also energized, allowing the field-supplied and -installed (24v) indoor (evaporator) fan contactor to func- I. START-UP AND ADJUSTMENTS tion. A field-supplied and -installed liquid line valve (con- nected between Terminals G and C at the outdoor unit), will CAUTION: Complete the required procedures also open. This allows the system to function in cooling; the given in the Pre-Start-Up section and unit start-up LPS will not open if compressor is not running. As cooling che
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SERVICE WARNING: When servicing unit, shut off all elec- trical 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. Condenser Coil Inspect coil monthly. Clean condenser coil annually, or as required by location and outdoor-air conditions. Clean coil as follows: Fig. 9 — Propping Up Top Panel 1. Turn off unit power and tag disconnect. 2. Remove and save top panel screw
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IV. CAPACITY CONTROL (576B120 Only) 7. Remove compressor from unit. A suction pressure-actuated unloader controls 2 cylinders 8. Clean system. Add new liquid line filter drier. and provides capacity control. Unloaders are factory set (see 9. Install new compressor in unit. Table 1), but may be field adjusted: 10. Connect suction and discharge lines to compressor. A. Control Set Point Ensure that compressor holddown bolts are in place. The control set point (cylinder load point) is adjustable fro
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VIII. REFRIGERANT SERVICE PORTS IX. HIGH FLOW VALVES Each unit has 3 service ports: one on the suction line, one on Located on the compressor hot gas and suction tubes are the liquid line, and one on the compressor discharge line. Be High Flow Valves. Large black plastic caps distinguish these sure caps on the ports are tight. valves with O-rings located inside the caps. These valves can not be accessed for service in the field. Ensure the plastic caps are in place and tight or the possibility o
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TROUBLESHOOTING GUIDE SYMPTOM CAUSE REMEDY Compressor does not run — Power off. Restore power. Contactor open Replace with correct fuses after finding cause Fuses blown. and correcting. Replace transformer if primary windings are Transformer open/shorted. receiving power and no output. Thermostat circuit open. Check thermostat setting. Check for refrigerant undercharge or system Low-pressure switch open. leak. Check for refrigerant over charge or High-pressure switch open. obstruction of outdoor
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LEGEND FOR FIG. 15 AND 16 LPS — Low-Pressure Switch C— Contactor, Compressor Terminal (Marked) NEC — National Electrical Code CAP — Capacitor OFC — Outdoor (Condenser) Fan Contactor CB — Circuit Breaker Terminal (Unmarked) OFM — Outdoor (Condenser) Fan Motor CH — Crankcase Heater OL — Overload Relay Terminal Block CLO — Compressor Lockout QT — Quadruple Terminal COMP — Compressor Motor TB — Terminal Block Factory Wiring COTP — Compressor Temperature Protection TDR — Time-Delay Relay EQUIP — Equi
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START-UP CHECKLIST I. PRELIMINARY INFORMATION OUTDOOR: MODEL NO. __________________________________ SERIAL NO.____________________________________ INDOOR: AIR HANDLER MANUFACTURER _____________________________________________________________ MODEL NO. ___________________________________ SERIAL NO.____________________________________ ADDITIONAL ACCESSORIES ______________________________________________________________________________ II. PRE-START-UP OUTDOOR UNIT IS THERE ANY SHIPPING DAMAGE? ___
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III. START-UP CHECK EVAPORATOR-FAN SPEED AND RECORD. _______ CHECK CONDENSER-FAN SPEED AND RECORD. _______ AFTER AT LEAST 15 MINUTES RUNNING TIME, RECORD THE FOLLOWING MEASUREMENTS: OIL PRESSURE (576B only) SUCTION PRESSURE SUCTION LINE TEMP DISCHARGE PRESSURE DISCHARGE LINE TEMP ENTERING CONDENSER-AIR TEMP LEAVING CONDENSER-AIR TEMP EVAP ENTERING-AIR DB (dry bulb) TEMP EVAP ENTERING-AIR WB (wet bulb) TEMP EVAP LEAVING-AIR DB TEMP EVAP LEAVING-AIR WB TEMP COMPRESSOR AMPS (L1/L2/L3) _____ / _____
