Carrier manual Wiring Schematics, Wiring Schematic 52SC Ð 208/230 V and 265 V AA and CP Units

Page 51

WIRING SCHEMATICS

Refer to Figures 83 - 87 for typical 52S unit wiring schematics.

NOTE: Figures 83 - 87 should not be substituted for the schematic

located next to the unit control box.

				LEGEND
	FCS Ð Fan Cycle Switch			Component Connection (Unmarked)
	IT	Ð	Indoor Thermostat
				Accessory or Optional Wiring
	L	Ð	Power Supply Line

Component Connections (Marked)	Factory Wiring

NOTES:

1.Recommended for use on grounded power supply only.

2.Compressor and fan motor thermally protected.

3.Use copper conductors only.

4.All wiring must conform with NEC (National Electrical Code) and local codes.

5.Dashed lines indicate components when used.

	SWITCH	CONTACTS MADE
	POSITION	CONTACTS MADE
	POSITION
	OFF	NONE
	FAN	L1	TO LO*
	LO COOL	L1	TO IT3, FCS to LO
	HI COOL	L1	TO IT3, FCS TO HI

*L1 to MED, some models.

FIGURE 83 Ð WIRING SCHEMATIC; 52SC Ð 208/230 V AND 265 V AA AND CP UNITS

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Image 51

Contents Contents Service Technician GuideSummary of DANGERS, WARNINGS, and Cautions IntroductionModel Number Nomenclature To Remove the Unit from the Wall Sleeve General DisassemblyTo Disconnect Power for CORD- Connected Unit To Open the Control BOXDuct Extension Screws Removing the AIR Baffle To Access INDOOR-AIR Section ComponentsTo Remove the TOP Cover Ð Remove the screw To Remove the AIR Discharge GrilleTo Access OUTDOOR-AIR Section Components To Remove the Discharge DeckTo Remove the Gusset Removing Stator Consider the following safety issues before beginning General CleaningCleaning and Safety Component Cleaning ScheduleTools Needed Monthly CleaningCleaning the Indoor AIR Filter Ð Remove Replacing the Indoor AIR Filter Ð AccessCleaning the Vent AIR Filter Replacing the Vent AIR FilterChassis Seasonal Cleaning Accessing the Indoor and OutdoorDisconnect ALL Power to Unit Section Components on Cleaning the Indoor and Outdoor CoilsAccessing the Indoor FAN and Indoor Coils sectionCleaning the Indoor FAN and FAN Disconnect ALL Power to the UnitCleaning the Heater Assembly Ð Once Rotary Compressor Components CompressorBasic Hermetic Compressor Electrical Measurements Compressor TroubleshootingBasic Compressor Troubleshooting Guide SHORTED/OPEN Windings Test Compressor ReplacementRemoving the Compressor Ð Follow the steps Disconnect all power to unitRefrigerant Charging Ð Every mechanical Installed Filter DrierHeaters Common Causes Heater FailureHeater Removal Removing Heater Screws Typical 52S Unit Operating Controls Operating ControlsOutside or Vent AIR Ð Push the FAN only Description of Switch SettingsNON-USER Adjustable Switches High Heat or High Cool Ð Push buttonHeat Pump Units Figure Sequence of OperationHEAT/COOL Units Figure Cooling only Units FigureComponent Operation and Troubleshooting Tools NeededIndoor Thermostat Heat Pump Units Outdoor Frost Thermostat Heat Pump Units Indoor Thermostat IT CONTACTS, ALL 52SQ AA and CP ModelsCapacitor Test Locked OUTOutdoor Frost Thermostat Screws Electrical Components Removal and ReplacementComponent Locations Open Control BOX FAN Motor Troubleshooting FAN MotorBasic FAN Motor Electrical Tests Typical 265 Volt Motors FAN Motor Troubleshooting Chart Typical 208/230 Volt MotorsRemoval FAN Motor ReplacementField Temperature Charts 52S Series Page 52S Series Page 52S Series Page 52S Series Page 52S Series Page 52S Series Page 52S Series Page 52S Series Wiring Schematic 52SC Ð 208/230 V and 265 V AA and CP Units Wiring SchematicsWiring Schematic 52SE Ð 208/230 V and 265 V AA and CP Units Wiring Schematic 52SE Ð 208/230 V and 265 V RC Units Wiring Schematic 52SQ Ð 208/230 V and 265 V AA and CP Units Wiring Schematic 52SQ Ð 208/230 V and 265 V RC Units Most Frequent Ptac Service Questions