Manuals / Carrier / Household Appliance / Air Conditioner

Carrier 52S Seasonal Cleaning, Accessing The Indoor And Outdoor, Disconnect All Power To Unit

Models: 52S

1 56

Download 56 pages 47.31 Kb

Page 13

SEASONAL CLEANING

SEASONAL CLEANING

ACCESSING THE INDOOR AND OUTDOOR

COILS Ð The minimum cleaning recommendation for indoor and outdoor coils is once per season. To access the coils for a thorough cleaning, it is necessary to remove the Air System. To accomplish this task, per- form the following steps:

1.DISCONNECT ALL POWER TO UNIT!

2.Remove the unit chassis from the sleeve as described in the General Disassembly section of this manual. See Figure 6.

3.Remove each side angle from unit with a 5¤16-in. nut driver. See Figure 25.

4.Locate and disconnect wires from the compressor. Label each wire for easy reassembly.

For compressors that are known to be dam- aged: Remove refreigerant prior to disconnecting compressor wires. Damaged hermetic compressor ter- minals may become loose and eject from the com- pressor. Wear safety glasses and keep your face away from the area above the terminals when removing compressor wires.

5.For Heat Pump Units Ð Disconnect the wire plug on the reversing valve and carefully remove the out- door thermostat capillary from the outdoor coil.

6.With a 5¤16-in. nut driver, locate and remove the

8 screws mounting the fan section to the chassis. See Figures 26 and 27.

7.Using a ¯at head screw driver, gently pry the plastic condenser ori®ce tabs away from both outdoor coil tube sheets and pull the condenser ori®ce away as shown in Figure 19. See GENERAL DISASSEMBLY section.

8.Carefully remove the fan section from the chassis by lifting fan section straight up and out. The fan deck is awkward; 2 people may be needed for its removal.

9.Remove the stator from the outdoor coil. See GENERAL DISASSEMBLY section. After cleaning, reassemble by reversing steps 1 - 8.

IMPORTANT: During reassembly of the fan section, carefully align the rubber seal around the tubing where it passes through the partition.

FIGURE 25 Ð SIDE ANGLE SCREWS

FIGURE 26 Ð PARTITION FLANGE SCREWS

FIGURE 27 Ð FAN SECTION SCREW LOCATIONS

13

Image 13

Carrier 52S manual Seasonal Cleaning, Accessing The Indoor And Outdoor, Disconnect All Power To Unit, Ð Side Angle Screws

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 theFIGURE 32 Ð ROTARY COMPRESSOR COMPONENTS COMPRESSOR52S SERIES BASIC HERMETIC COMPRESSOR ELECTRICAL MEASUREMENTS COMPRESSOR TROUBLESHOOTINGFIGURE 33 Ð ROTARY COMPRESSOR COMPRESSION PROCESS 1.DISCONNECT ALL POWER TO THE UNIT52S SERIES SYMPTOMFIGURE 35 Ð SHORTED/OPEN WINDINGS TEST COMPRESSOR REPLACEMENTFIGURE 36 Ð GROUNDED 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 STRAINERREFRIGERANT CHARGING Ð Every mechanical FIGURE 39 Ð INSTALLED FILTER DRIERFIGURE 40 Ð SUCTION LINE FILTER DRIER Power Consider the following safety issuesAssembly 1.DISCONNECT ALL POWER TO UNIT FIGURE 41 Ð LIMIT SWITCH LOCATIONFIGURE 43 Ð HEATER REMOVED FIGURE 42 Ð REMOVING HEATER SCREWSFIGURE 44 Ð ACCEPTABLE HEATER RESISTANCE VALUES 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 FiguresLOCKED OUT FIGURE 57 Ð FAN CYCLE SWITCH 3 TerminalFIGURE 56 Ð CAPACITOR TEST 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