Manuals / Carrier / Household Appliance / Air Conditioner

Carrier 52S manual

Models: 52S

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LEGEND

			LEGEND
CAP	Ð Capacitor	PL	Ð Plug
COMP	Ð Compressor	PLS	Ð Primary Limit Switch
CR	Ð Cooling Relay	SLS	Ð Secondary Limit Switch
EQUIP GND Ð Equipment Ground		SSS	Ð Speed Selector Switch
FM	Ð Fan Motor	ST	Ð Start Thermistor
FR	Ð Fan Relay	TB	Ð Terminal Board
HR	Ð Heating Relay	TRANS Ð Transformer
IFT	Ð Indoor Frost Thermostat		Component Connection (Marked)
L	Ð Power Supply Line		Component Connection (Marked)
OL	Ð Overload

Component Connection (Unmarked)

Terminal Board Connection

Field Ground Wiring

Field Control Wiring Accessory or Optional Wiring Factory Wiring

To Indicate Common Potential Only. Not to Represent Wire

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.

6.Control center uses thermostat part no. HH01AD045 or equivalent.

7.Field control wire suitable for NEC class 2 control circuit, at 24 volts.

FIGURE 85 Ð WIRING SCHEMATIC; 52SE Ð 208/230 V AND 265 V RC UNITS

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Carrier 52S manual

Contents

52S SERIES CONTENTSSERVICE TECHNICIAN GUIDE PACKAGED TERMINAL AIR CONDITIONERS AND HEAT PUMPSSUMMARY OF DANGERS, WARNINGS, AND CAUTIONS INTRODUCTIONFIGURE 1 Ð REMOVING FRONT PANEL 52S SERIESFIGURE 3 Ð SAMPLE DATA INFORMATION PLATE FIGURE 2 Ð MODEL NUMBER NOMENCLATURETO DISCONNECT POWER FOR CORD- CONNECTED UNIT GENERAL DISASSEMBLYTO OPEN THE CONTROL BOX TO REMOVE THE UNIT FROM THE WALL SLEEVETO REMOVE THE LATERAL DUCT WITH THE LATERAL DUCT ACCESSORY PACKAGEEXTENSION, FOR UNITS EQUIPPED FIGURE 7 Ð DUCT EXTENSION SCREWSLATERAL DUCT ACCESSORY PACKAGE TO ACCESS INDOOR-AIRSECTION COMPONENTSFIGURE 11 Ð DISCHARGE PLENUM ASSEMBLY DISASSEMBLING THE LATERAL DUCTFIGURE 14 Ð REMOVING AIR DISCHARGE GRILLE TO REMOVE THE AIR DISCHARGE GRILLETO REMOVE THE ALUMINUM TOP PANEL FIGURE 15 Ð ALUMINUM TOP PANELTO REMOVE THE DISCHARGE DECK TO ACCESS OUTDOOR-AIRSECTION COMPONENTSTO REMOVE THE GUSSET FIGURE 17 Ð DISCHARGE DECK REMOVALSTATOR CONDENSER ORIFICE CONDENSER COIL FIGURE 20 Ð REMOVING STATORCLEANING AND SAFETY GENERAL CLEANINGCOMPONENT CLEANING SCHEDULE FIGURE 21 Ð FRONT PANEL, CHASSIS, AND SLEEVECLEANING THE INDOOR AIR FILTER Ð Remove MONTHLY CLEANINGREPLACING THE INDOOR AIR FILTER Ð Access TOOLS NEEDEDFIGURE 23 Ð ACCESSING VENT AIR FILTER CLEANING THE VENT AIR FILTERREPLACING THE VENT AIR FILTER CHASSISACCESSING THE INDOOR AND OUTDOOR SEASONAL CLEANING1.DISCONNECT ALL POWER TO UNIT FIGURE 25 Ð SIDE ANGLE SCREWSCoils section ACCESSING THE INDOOR FAN AND INDOOR CLEANING THE INDOOR AND OUTDOOR COILSFIGURE 28 Ð CLEANING THE COILS Section Components on pageACCESSING THE HEATER ASSEMBLY Ð To access CLEANING THE INDOOR FAN AND FAN1.DISCONNECT ALL POWER TO THE UNIT CLEANING THE HEATER ASSEMBLY Ð Once the52S SERIES COMPRESSORFIGURE 32 Ð ROTARY COMPRESSOR COMPONENTS BASIC HERMETIC COMPRESSOR ELECTRICAL MEASUREMENTS COMPRESSOR TROUBLESHOOTINGFIGURE 33 Ð ROTARY COMPRESSOR COMPRESSION PROCESS 1.DISCONNECT ALL POWER TO THE UNIT52S SERIES SYMPTOMFIGURE 36 Ð GROUNDED WINDINGS TEST COMPRESSOR REPLACEMENTFIGURE 35 Ð SHORTED/OPEN WINDINGS TEST REMOVING THE COMPRESSOR Ð Follow the steps 1.Disconnect all power to unitFIGURE 37 Ð STRAINER AND LIQUID TUBE FIGURE 38 Ð TUBE INSERTED STRAINERFIGURE 40 Ð SUCTION LINE FILTER DRIER FIGURE 39 Ð INSTALLED FILTER DRIERREFRIGERANT CHARGING Ð Every mechanical Power Consider the following safety issuesAssembly 1.DISCONNECT ALL POWER TO UNIT FIGURE 41 Ð LIMIT SWITCH LOCATIONFIGURE 44 Ð ACCEPTABLE HEATER RESISTANCE VALUES FIGURE 42 Ð REMOVING HEATER SCREWSFIGURE 43 Ð HEATER REMOVED FIGURE 45 Ð TYPICAL 52S UNIT OPERATING CONTROLS OPERATING CONTROLSFIGURE 46 Ð MANUAL THERMOSTAT FIGURE 47 Ð PROGRAMMABLE THERMOSTATNON-USERADJUSTABLE SWITCHES DESCRIPTION OF SWITCH SETTINGSHIGH HEAT OR HIGH COOL Ð Push button and OUTSIDE OR VENT AIR Ð Push the FAN ONLYFIGURE 51 Ð SELECTOR SWITCH CONTACTS FIGURE 50 Ð SELECTOR SWITCH CONTACTSFIGURE 52 Ð SELECTOR SWITCH CONTACTS SEQUENCE OF OPERATIONTOOLS NEEDED COMPONENT OPERATION AND TROUBLESHOOTINGINDOOR THERMOSTAT Heat Pump Units Consider the following safety issuesFIGURE 55 Ð OUTDOOR FROST THERMOSTAT OFT OUTDOOR FROST THERMOSTAT Heat Pump UnitsCONTACTS, ALL 52SQ AA AND CP MODELS LEGEND FiguresFIGURE 56 Ð CAPACITOR TEST FIGURE 57 Ð FAN CYCLE SWITCH 3 TerminalLOCKED OUT FIGURE 60 Ð OUTDOOR FROST THERMOSTAT SCREWS ELECTRICAL COMPONENTS REMOVAL AND REPLACEMENTFIGURE 58 Ð ESCUTCHEON REMOVAL FIGURE 59 Ð TEMPERATURE LIMITERIN OPEN CONTROL BOX FIGURE 61 Ð COMPONENT LOCATIONSFAN MOTOR FAN MOTOR TROUBLESHOOTINGBASIC FAN MOTOR ELECTRICAL TESTS FIGURE 62 Ð TWO-SPEED,PERMANENTTYPICAL 208/230 VOLT MOTORS FIGURE 63 Ð FAN MOTOR TROUBLESHOOTING CHARTTYPICAL 265 VOLT MOTORS FIGURE 64 Ð TYPICAL 52S FAN MOTORSRemoval FAN MOTOR REPLACEMENTFIGURE 65 Ð SPRING CLIP FIGURE 66 Ð REMOVING OUTDOOR FAN FROM MOTOR SHAFTSee Figures 67 - 82 for eld temperature data FIELD TEMPERATURE CHARTS52S SERIES Page 52S SERIES Page 52S SERIES Page 52S SERIES Page 52S SERIES Page 52S SERIES Page 52S SERIES Page 52S SERIES located next to the unit control box WIRING SCHEMATICSÐ Capacitor 52S SERIESPage Ð Capacitor 52S SERIESPage No, only for use on remote control RC models MOST FREQUENT PTAC SERVICE QUESTIONSBy using a slinger ring to evaporate the water on the outdoor coil, and by using an optional acces