Carrier 52S manual Rotary Compressor Components

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52S

SERIES

COMPRESSOR

A cutaway view of the rotary compressor with key com- ponents labeled is shown in Figure 32. The motor sta- tor is rigidly attached to the compressor shell. The rotor is pressed onto the eccentric shaft, which is supported by 2 bearings. Both the discharge valve and discharge muffler are attached to the motor bearing. The pump

bearing provides a thrust surface for the shaft and the rolling piston. Compressed gas is separated from the suction gas by the vane. Discharge gas pressure and the vane spring keep the vane in contact with the rolling piston.

DISCHARGE TUBE

SUCTION INLET

SUCTION MUFFLER/ ACCUMULATOR

PISTON

VANE

OIL TUBE

SHELL

STATOR

ECCENTRIC SHAFT

ROTOR

MOTOR BEARING

DISCHARGE MUFFLER

DISCHARGE VALVE

CYLINDER

PUMP BEARING

MOUNTING PLATE

FIGURE 32 Ð ROTARY COMPRESSOR COMPONENTS

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Contents Service Technician Guide ContentsIntroduction Summary of DANGERS, WARNINGS, and CautionsModel Number Nomenclature General Disassembly To Disconnect Power for CORD- Connected UnitTo Open the Control BOX To Remove the Unit from the Wall SleeveDuct Extension Screws To Access INDOOR-AIR Section Components Removing the AIR BaffleTo Remove the AIR Discharge Grille To Remove the TOP Cover Ð Remove the screwTo Remove the Discharge Deck To Access OUTDOOR-AIR Section ComponentsTo Remove the Gusset Removing Stator General Cleaning Cleaning and SafetyComponent Cleaning Schedule Consider the following safety issues before beginningMonthly Cleaning Cleaning the Indoor AIR Filter Ð RemoveReplacing the Indoor AIR Filter Ð Access Tools NeededReplacing the Vent AIR Filter Cleaning the Vent AIR FilterChassis Accessing the Indoor and Outdoor Seasonal CleaningDisconnect ALL Power to Unit Cleaning the Indoor and Outdoor Coils Accessing the Indoor FAN and IndoorCoils section Section Components onDisconnect ALL Power to the Unit Cleaning the Indoor FAN and FANCleaning the Heater Assembly Ð Once Compressor Rotary Compressor ComponentsCompressor Troubleshooting Basic Hermetic Compressor Electrical MeasurementsBasic Compressor Troubleshooting Guide Compressor Replacement SHORTED/OPEN Windings TestDisconnect all power to unit Removing the Compressor Ð Follow the stepsInstalled Filter Drier Refrigerant Charging Ð Every mechanicalCommon Causes Heater Failure HeatersHeater Removal Removing Heater Screws Operating Controls Typical 52S Unit Operating ControlsDescription of Switch Settings NON-USER Adjustable SwitchesHigh Heat or High Cool Ð Push button Outside or Vent AIR Ð Push the FAN onlySequence of Operation HEAT/COOL Units FigureCooling only Units Figure Heat Pump Units FigureTools Needed Component Operation and TroubleshootingIndoor Thermostat Heat Pump Units Indoor Thermostat IT CONTACTS, ALL 52SQ AA and CP Models Outdoor Frost Thermostat Heat Pump UnitsLocked OUT Capacitor TestElectrical Components Removal and Replacement Outdoor Frost Thermostat ScrewsComponent Locations Open Control BOX FAN Motor FAN Motor TroubleshootingBasic FAN Motor Electrical Tests FAN Motor Troubleshooting Chart Typical 208/230 Volt Motors Typical 265 Volt MotorsFAN Motor Replacement RemovalField 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 Schematics Wiring Schematic 52SC Ð 208/230 V and 265 V AA and CP UnitsWiring 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