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Carrier manual General Cleaning, Cleaning And Safety, Component Cleaning Schedule, 52S SERIES

Models: 52S

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GENERAL CLEANING

52S

SERIES

GENERAL CLEANING

Maintaining proper performance of 52S systems (Figure 21) requires conscientious cleaning and care of components. Speci®c components require periodic clean- ing and/or replacement, including the following:

COMPONENT CLEANING SCHEDULE

Indoor Air Filter	Monthly
Vent Air Filter	Monthly
Indoor Coil	Seasonally
Indoor Fan	Seasonally
Outdoor Coil	Seasonally

CLEANING AND SAFETY

Before starting to clean a unit, read the instructions thoroughly and gather the necessary tools for the job. Review all safety information on unit and in literature.

Before cleaning, servicing, performing maintenance, or removing the chassis from the wall sleeve, discon- nect all power to the unit to avoid the possibility of electrical shock and personal injury. Only trained and quali®ed service personnel should perform installation and service procedures on these units. Untrained personnel may perform basic maintenance tasks such as cleaning and replacing ®lters. Refer to General Disassembly section of this manual for proper procedures to disconnect power to 52S units.

Consider the following safety issues before beginning:

·New and unfamiliar tasks should be performed under the supervision of an experienced service technician.

·Personal protective equipment, such as safety glasses and work gloves, should be used.

·The ¯oor around the work area should be clean and free of debris.

·The 52S unit weighs up to 150 pounds. Use a lifting device or ask for assistance if the unit must be moved.

·Make sure tools are the correct tools for the job, and that they are working properly and in good condition.

WALL SLEEVE

CHASSIS

FRONT COVER

FIGURE 21 Ð FRONT PANEL, CHASSIS, AND SLEEVE

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Carrier 52S manual General Cleaning, Cleaning And Safety, Component Cleaning Schedule, Ð Front Panel, Chassis, And Sleeve

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 theFIGURE 32 Ð ROTARY COMPRESSOR COMPONENTS COMPRESSOR52S SERIES FIGURE 33 Ð ROTARY COMPRESSOR COMPRESSION PROCESS COMPRESSOR TROUBLESHOOTINGBASIC HERMETIC COMPRESSOR ELECTRICAL MEASUREMENTS 1.DISCONNECT ALL POWER TO THE UNITSYMPTOM 52S SERIESFIGURE 35 Ð SHORTED/OPEN WINDINGS TEST COMPRESSOR REPLACEMENTFIGURE 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 STRAINERREFRIGERANT CHARGING Ð Every mechanical FIGURE 39 Ð INSTALLED FILTER DRIERFIGURE 40 Ð SUCTION LINE FILTER DRIER Assembly 1.DISCONNECT ALL POWER TO UNIT Consider the following safety issuesPower FIGURE 41 Ð LIMIT SWITCH LOCATIONFIGURE 43 Ð HEATER REMOVED FIGURE 42 Ð REMOVING HEATER SCREWSFIGURE 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 FiguresLOCKED OUT FIGURE 57 Ð FAN CYCLE SWITCH 3 TerminalFIGURE 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