Carrier 52S manual General Cleaning, Cleaning and Safety, Component Cleaning Schedule

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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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Contents Service Technician Guide ContentsIntroduction Summary of DANGERS, WARNINGS, and CautionsModel Number Nomenclature To Open the Control BOX General DisassemblyTo Disconnect Power for CORD- Connected Unit 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 Component Cleaning Schedule General CleaningCleaning and Safety Consider the following safety issues before beginningReplacing the Indoor AIR Filter Ð Access Monthly CleaningCleaning the Indoor AIR Filter Ð Remove Tools NeededReplacing the Vent AIR Filter Cleaning the Vent AIR FilterChassis Accessing the Indoor and Outdoor Seasonal CleaningDisconnect ALL Power to Unit Coils section Cleaning the Indoor and Outdoor CoilsAccessing the Indoor FAN and Indoor 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 ControlsHigh Heat or High Cool Ð Push button Description of Switch SettingsNON-USER Adjustable Switches Outside or Vent AIR Ð Push the FAN onlyCooling only Units Figure Sequence of OperationHEAT/COOL 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