Manuals / Carrier / Household Appliance / Air Conditioner

Carrier manual 52S SERIES, Symptom

Models: 52S

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SYMPTOM

52S

SERIES

	SYMPTOM	COMPRESSOR	COMPRESSOR	COMPRESSOR	COMPRESSOR	COMPRESSOR
	SYMPTOM	STARTS AND	STARTS AFTER	WILL NOT	COMPRESSOR	COMPRESSOR
		STARTS AND	STARTS AFTER	WILL NOT	WILL NOT START	CYCLES OFF
		RUNS BUT	CYCLING THE	START. IT HUMS	WILL NOT START	CYCLES OFF
	POSSIBLE CAUSE	CYCLES ON THE	OVERLOAD	AND CYCLES ON	AND MAKES NO	(NOT ON
		OVERLOAD	SEVERAL TIMES	THE OVERLOAD	NOISE	OVERLOAD)
		OVERLOAD	SEVERAL TIMES	THE OVERLOAD
	COILS/FILTERS DIRTY OR PLUGGED	X
	AIR OR NONCONDENSABLE GASES	X	X
	IN SYSTEM	X	X
	IN SYSTEM
	SYSTEM REFRIGERANT OVERCHARGED	X				X
	DISCHARGE LINE RESTRICTED	X	X
	CAPILLARY TUBE OR STRAINER	X	X			X
	RESTRICTED OR PLUGGED	X	X			X
	RESTRICTED OR PLUGGED
	FAN BLADE OR MOTOR DEFECTIVE	X				X
	FAN BLADE OR BLOWER WHEEL STUCK	X				X
	SYSTEM REFRIGERANT UNDERCHARGED	X				X
	EVAPORATOR AIRFLOW RECIRCULATION					X
	UNIT OVERSIZED FOR APPLICATION					X
	COMPRESSOR REQUIRES START ASSIST		X	X
	NO POWER TO UNIT				X
	LOW VOLTAGE TO UNIT	X	X	X		X
	OVERLOAD PROTECTOR OPEN				X
	OVERLOAD PROTECTOR INCORRECT	X		X	X
	OR DEFECTIVE	X		X	X
	OR DEFECTIVE
	CAPACITOR INCORRECT OR DEFECTIVE	X	X	X		X
	THERMOSTAT CONTACTS ARE OPEN				X
	THERMOSTAT IS SET TOO HIGH OR LOW				X
	SELECTOR SWITCH IS OPEN				X
	OR DEFECTIVE				X
	OR DEFECTIVE
	WIRING IS INCORRECT OR DEFECTIVE	X		X	X	X
	SYSTEM PRESSURES NOT EQUALIZED		X	X		X
	COMPRESSOR MOTOR OR	X	X	X	X	X
	MECHANISM DEFECTIVE	X	X	X	X	X
	MECHANISM DEFECTIVE
	COMPRESSOR GROUNDED			X

FIGURE 34 Ð BASIC COMPRESSOR TROUBLESHOOTING GUIDE

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Carrier manual 52S SERIES, Symptom

Contents

SERVICE TECHNICIAN GUIDE CONTENTS52S SERIES PACKAGED TERMINAL AIR CONDITIONERS AND HEAT PUMPSFIGURE 1 Ð REMOVING FRONT PANEL INTRODUCTIONSUMMARY OF DANGERS, WARNINGS, AND CAUTIONS 52S SERIESFIGURE 2 Ð MODEL NUMBER NOMENCLATURE FIGURE 3 Ð SAMPLE DATA INFORMATION PLATETO OPEN THE CONTROL BOX GENERAL DISASSEMBLYTO DISCONNECT POWER FOR CORD- CONNECTED UNIT TO REMOVE THE UNIT FROM THE WALL SLEEVEEXTENSION, FOR UNITS EQUIPPED WITH THE LATERAL DUCT ACCESSORY PACKAGETO REMOVE THE LATERAL DUCT FIGURE 7 Ð DUCT EXTENSION SCREWSFIGURE 11 Ð DISCHARGE PLENUM ASSEMBLY TO ACCESS INDOOR-AIRSECTION COMPONENTSLATERAL DUCT ACCESSORY PACKAGE DISASSEMBLING THE LATERAL DUCTTO REMOVE THE ALUMINUM TOP PANEL TO REMOVE THE AIR DISCHARGE GRILLEFIGURE 14 Ð REMOVING AIR DISCHARGE GRILLE FIGURE 15 Ð ALUMINUM TOP PANELTO REMOVE THE GUSSET TO ACCESS OUTDOOR-AIRSECTION COMPONENTSTO REMOVE THE DISCHARGE DECK FIGURE 17 Ð DISCHARGE DECK REMOVALFIGURE 20 Ð REMOVING STATOR STATOR CONDENSER ORIFICE CONDENSER COILCOMPONENT CLEANING SCHEDULE GENERAL CLEANINGCLEANING AND SAFETY FIGURE 21 Ð FRONT PANEL, CHASSIS, AND SLEEVEREPLACING THE INDOOR AIR FILTER Ð Access MONTHLY CLEANINGCLEANING THE INDOOR AIR FILTER Ð Remove TOOLS NEEDEDREPLACING THE VENT AIR FILTER CLEANING THE VENT AIR FILTERFIGURE 23 Ð ACCESSING VENT AIR FILTER CHASSIS1.DISCONNECT ALL POWER TO UNIT SEASONAL CLEANINGACCESSING THE INDOOR AND OUTDOOR FIGURE 25 Ð SIDE ANGLE SCREWSFIGURE 28 Ð CLEANING THE COILS CLEANING THE INDOOR AND OUTDOOR COILSCoils section ACCESSING THE INDOOR FAN AND INDOOR Section Components on page1.DISCONNECT ALL POWER TO THE UNIT CLEANING THE INDOOR FAN AND FANACCESSING THE HEATER ASSEMBLY Ð To access CLEANING THE HEATER ASSEMBLY Ð Once theCOMPRESSOR FIGURE 32 Ð ROTARY COMPRESSOR COMPONENTS52S SERIES FIGURE 33 Ð ROTARY COMPRESSOR COMPRESSION PROCESS COMPRESSOR TROUBLESHOOTINGBASIC HERMETIC COMPRESSOR ELECTRICAL MEASUREMENTS 1.DISCONNECT ALL POWER TO THE UNITSYMPTOM 52S SERIESCOMPRESSOR REPLACEMENT FIGURE 35 Ð SHORTED/OPEN WINDINGS TESTFIGURE 36 Ð GROUNDED WINDINGS TEST FIGURE 37 Ð STRAINER AND LIQUID TUBE 1.Disconnect all power to unitREMOVING THE COMPRESSOR Ð Follow the steps FIGURE 38 Ð TUBE INSERTED STRAINERFIGURE 39 Ð INSTALLED FILTER DRIER REFRIGERANT CHARGING Ð Every mechanicalFIGURE 40 Ð SUCTION LINE FILTER DRIER Assembly 1.DISCONNECT ALL POWER TO UNIT Consider the following safety issuesPower FIGURE 41 Ð LIMIT SWITCH LOCATIONFIGURE 42 Ð REMOVING HEATER SCREWS FIGURE 43 Ð HEATER REMOVEDFIGURE 44 Ð ACCEPTABLE HEATER RESISTANCE VALUES FIGURE 46 Ð MANUAL THERMOSTAT OPERATING CONTROLSFIGURE 45 Ð TYPICAL 52S UNIT OPERATING CONTROLS FIGURE 47 Ð PROGRAMMABLE THERMOSTATHIGH HEAT OR HIGH COOL Ð Push button and DESCRIPTION OF SWITCH SETTINGSNON-USERADJUSTABLE SWITCHES OUTSIDE OR VENT AIR Ð Push the FAN ONLYFIGURE 52 Ð SELECTOR SWITCH CONTACTS FIGURE 50 Ð SELECTOR SWITCH CONTACTSFIGURE 51 Ð SELECTOR SWITCH CONTACTS SEQUENCE OF OPERATIONINDOOR THERMOSTAT Heat Pump Units COMPONENT OPERATION AND TROUBLESHOOTINGTOOLS NEEDED Consider the following safety issuesCONTACTS, ALL 52SQ AA AND CP MODELS OUTDOOR FROST THERMOSTAT Heat Pump UnitsFIGURE 55 Ð OUTDOOR FROST THERMOSTAT OFT LEGEND FiguresFIGURE 57 Ð FAN CYCLE SWITCH 3 Terminal LOCKED OUTFIGURE 56 Ð CAPACITOR TEST FIGURE 58 Ð ESCUTCHEON REMOVAL ELECTRICAL COMPONENTS REMOVAL AND REPLACEMENTFIGURE 60 Ð OUTDOOR FROST THERMOSTAT SCREWS FIGURE 59 Ð TEMPERATURE LIMITERFIGURE 61 Ð COMPONENT LOCATIONS IN OPEN CONTROL BOXBASIC FAN MOTOR ELECTRICAL TESTS FAN MOTOR TROUBLESHOOTINGFAN MOTOR FIGURE 62 Ð TWO-SPEED,PERMANENTTYPICAL 265 VOLT MOTORS FIGURE 63 Ð FAN MOTOR TROUBLESHOOTING CHARTTYPICAL 208/230 VOLT MOTORS FIGURE 64 Ð TYPICAL 52S FAN MOTORSFIGURE 65 Ð SPRING CLIP FAN MOTOR REPLACEMENTRemoval FIGURE 66 Ð REMOVING OUTDOOR FAN FROM MOTOR SHAFTFIELD TEMPERATURE CHARTS See Figures 67 - 82 for eld temperature data52S SERIES Page 52S SERIES Page 52S SERIES Page 52S SERIES Page 52S SERIES Page 52S SERIES Page 52S SERIES Page 52S SERIES WIRING SCHEMATICS located next to the unit control box52S SERIES Ð CapacitorPage 52S SERIES Ð CapacitorPage By using a slinger ring to evaporate the water on MOST FREQUENT PTAC SERVICE QUESTIONSNo, only for use on remote control RC models the outdoor coil, and by using an optional acces