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installation, start-up and
564A
Sizes 024-060
service instructions
764A
PACKAGEDAIR
Sizes 024-060
CONDITIONERS
Cancels: II 564A-24-1 II 564A-24-2
6/1/96
IMPORTANT — READ BEFORE INSTALLING
1. Read and become familiar with these installation in-
structionsbeforeinstallingthisunit(Fig.1).Retainthese
instructions for future maintenance and repair.
2. Be sure the installation conforms to all applicable local
andnationalcodes.Wearsafetyglassesandworkgloves.
Usequenchingclothforunbrazingoperations.Have
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LEGEND UNIT CENTER OF GRAVITY mm [in.] UNIT ELECTRICAL NEC — National Electrical Code WEIGHT 564A/764A CHARACTERISTICS Lb Kg X Y Z REQUIRED CLEARANCES TO COMBUSTIBLE MATERIAL, mm [in.] 024 208/230-1-60 222 101 355.6 [14.00] 508.0 [20.00] 241.3 [9.50] Top of Unit ..............................0 030 208/230-1-60 236 107 355.6 [14.00] 508.0 [20.00] 241.3 [9.50] Duct Side of Unit ..........................0 Side Opposite Ducts ........................0 036 208/230-1-60, 208/230-3-60 250 114 355.6 [1
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LEGEND UNIT CENTER OF GRAVITY mm [in.] UNIT ELECTRICAL NEC — National Electrical Code WEIGHT 564A/764A CHARACTERISTICS Lb Kg X Y Z REQUIRED CLEARANCES TO COMBUSTIBLE MATERIAL, mm [in.] 042 208/230-1-60, 208/230-3-60 297 135 355.6 [14.00] 508.0 [20.00] 304.8 [12.00] Top of Unit ..............................0 048 208/230-1-60, 208/230-3-60 310 114 355.6 [14.00] 508.0 [20.00] 304.8 [12.00] Duct Side of Unit ..........................0 Side Opposite Ducts ........................0 Bottom of Unit ..
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LEGEND UNIT CENTER OF GRAVITY mm [in.] UNIT ELECTRICAL NEC — National Electrical Code WEIGHT 564A/764A CHARACTERISTICS Lb Kg X Y Z REQUIRED CLEARANCES TO COMBUSTIBLE MATERIAL, mm [in.] 230-1-60, 208/230-3-60, 060 350 159 355.6 [14.00] 508.0 [20.00] 355.6 [14.00] Top of Unit ..............................0 460-3-60 Duct Side of Unit ..........................0 Side Opposite Ducts ........................0 Bottom of Unit ............................0 NEC REQUIRED CLEARANCES, mm [in.] Between Units
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I. LOCATE THE UNIT A. Clearance Providesufficientspaceforcondenserairflowclearance,wir- ing,andservicingunit.SeeFig.2-4.Locateunitwheresupply- andreturn-airductscanbeconvenientlybroughtouttounit duct connections. Unitmaybeplacedwithductsideasclosetobuilding MAXIMUMALLOWABLE as top removal, duct connections, and power connec- DIFFERENCE (in.) tions permit. Position unit so water or ice from roof does A-B B-C A-C not drop directly on top of unit or in front of coil. Make pro- 1 1 1 ⁄4 ⁄4 ⁄4 visions
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Table 1 — Physical Data UNIT 564AAND 764A 024 030 036 042 048 060 OPERATING WEIGHT (lb) 222 236 250 297 310 350 COMPRESSOR TYPE Reciprocating REFRIGERANT R-22 Charge (lb) 2.8 3.9 4.7 4.4 6.1 7.5 REFRIGERANT METERING DEVICE Acutrol™ System CONDENSER COIL Copper Tubes,Aluminum Plate Fins Rows...Fins/in. 1...17 1...17 2...17 1...17 2...17 2...17 Total Face Area (sq ft) 6.7 7.9 6.2 11.1 8.6 10.7 CONDENSER-FAN MOTOR Propeller Cfm 1600 2000 2000 2600 2600 2800 Nominal Rpm 825 1100 1100 1100 1100 1100
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InstallFlangesforDuctworkConnections(564A/764A060only) 4. Install 2 hand-formed flanges onto return air opening in holes provided to form rectangle around the return The size 060 units are shipped with flanges which must be air opening. field-installed on the unit. 5. Install remaining 2 hand-formed flanges around dis- To install unit flanges: charge air opening in holes provided. 1. Fivepiecesofflangeareshippedonthereturnairopen- 6. Ductwork can now be attached to flanges. ing of the unit. Remove the
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CAUTION: Failuretofollowtheseprecautionscould result in damage to the unit being installed: 1. Make all electrical connections in accordance with NECANSI/NFPA(latestedition)andlocalelectrical codes governing such wiring. In Canada, all elec- trical connections must be in accordance with CSA Standard C22.1 Canadian Electrical Code Part 1 and applicable local codes. Refer to unit wiring diagram. 2. Use only copper conductor for connections between field-supplied electrical disconnect switch and uni
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Route thermostat wires through grommet providing a drip rewire transformer primary as described in Special Proce- loop at the panel. Connect low-voltage leads to the thermo- dures for 208-V Operation section on page 11. stat as shown in Fig. 16. Accessory Electric Heat Wiring Refer to accessory electric heat installation instructions for The unit transformer supplies 24-v power for complete information on installing accessory electric heat. Accessory system including accessory electrical heater.
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Table 2 — Electrical Data VOLTAGE DISCONNECT COMPRESSOR OFM IFM ELECTRIC HEAT POWER SUPPLY NOMINAL RANGE SIZE UNIT VOLTAGE 564A/764A Nominal (V-Ph-Hz) Min Max RLA LRA FLA FLA FLA MCA MOCP FLA LRA kW* —/— —/— 16.9/ 16.9 20/ 20 16/ 16 024 208/230-1-60 187 254 10.9 61.0 0.9 2.4 3.8/ 5.0 18.1/20.8 25.6/ 29.0 30/ 30 24/ 27 68 7.5/10.0 36.1/41.7 48.1/ 55.1 50/ 60 44/ 51 —/— —/— 22.9/ 22.9 30/ 30 22/ 22 3.8/ 5.0 18.1/20.8 25.6/ 29.0 30/ 30 24/ 27 030 208/230-1-60 187 254 15.2 69.4 1.5 2.4 79 7.5/10.0 3
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Fig. 17 — Electric Heater Wiring Special Procedures for 208-V Operation PRE-START-UP WARNING:Failure to observe the following warn- WARNING:Make sure that the power supply to the ings could result in serious personal injury: unitisswitchedOFFbeforemakinganywiringchanges. 1. Follow recognized safety practices and wear protec- Electrical shock can cause personal injury or death. tive goggles when checking or servicing refrigerant system. 1. Disconnect the orange transformer-primary lead from the c
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Proceed as follows to inspect and prepare the unit for initial 4. Afterthecallforheathasbeensatisfied,theevaporator start-up: fan will stop. For units equipped with time-delay relay, evaporator fan will stop after a 30-second time delay. 1. Remove all access panels. To shut off unit, set system selector switch at OFF position 2. Read and follow instructions on all WARNING, CAU- or set heating set point lever below room temperature. TION,andINFORMATIONlabelsattachedto,orshipped with, unit. B. Heat
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C. Unit Controls Table 3 — Dry Coil Air Delivery — Horizontal Discharge Compressor High-PressureReliefValve—Valveislocatedincompressor. UNIT IFM SPEED AIRFLOW ESP POWER 564A/764A SETTING (Cfm) (in. wg) (Watts) Reliefvalveopensatapressuredifferentialofapproximately 450 psi between suction (low side) and discharge (high side) Low 800 0.30 282 to allow pressure equalization. 024 Med 800 0.65 349 High 800 0.80 439 Internal Current and Temperature Sensing Overload — Low* 1000 — — Deviceresetsautomati
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CARE AND MAINTENANCE I. AIR FILTER NOTE: The following steps should be performed by a quali- CAUTION: Never operate the unit without a suit- fied service person. ableairfilterinthereturn-airductsystem.Alwaysre- placethefilterwiththesamedimensionalsizeandtype WARNING:Before installing or servicing unit, turn as originally installed. See Tables 1 and 2 for recom- off main power to system to avoid shock hazard or in- mended filter sizes. jury from rotating parts. There may be more than one disconnectsw
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SERVICE Inspect the condenser coil, evaporator coil, and condensate drainpanatleastonceeachyear.Properinspectionandclean- NOTE: The following steps should be performed by a quali- ing requires the removal of the unit top. See Unit Top fied service person. Removal section above. Thecoilsareeasilycleanedwhendry;therefore,inspectand WARNING:Before installing or servicing unit, turn clean the coils either before or after each cooling season. off main power to system to avoid shock hazard or in- Remov
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IV. ELECTRICAL CONTROLS AND WIRING A. Adjusting Refrigerant Charge Inspect and check the electrical controls and wiring an- Amountofrefrigerantchargeislistedonunitnameplate(also nually. Be sure to turn off all electrical power to the unit. refer to Table 1). Refer to Carrier Refrigerant Service Tech- niques Manual, Refrigerants section. Removethecontrol,evaporatorfan,andcompressorcompart- ment access panels to locate all the electrical controls and Unit panels must be in place when unit is opera
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Fig. 19 — Cooling Charging Chart — 564A/764A024 Fig. 21 — Cooling Charging Chart — 564A/764A036 Fig. 20 — Cooling Charging Chart 564A/764A030 Fig. 22 — Cooling Charging Chart — 564A/764A042 —17—
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Fig. 24 — Cooling Charging Chart — 564A/764A060 Fig. 23 — Cooling Charging Chart — 564A/764A048 —18—
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COOLING TROUBLESHOOTING CHART SYMPTOM CAUSE REMEDY Compressor and con- Power failure Call power company. denser fan will not Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker. start. Defective thermostat, contactor, transformer, Replace component. or control relay Insufficient line voltage Determine cause and correct. Incorrect or faulty wiring Check wiring diagram and rewire correctly. Thermostat setting too high Lower thermostat setting below room temperature. Compres
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