Carrier 52S manual Duct Extension Screws

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TO REMOVE THE LATERAL DUCT

EXTENSION, FOR UNITS EQUIPPED

WITH THE LATERAL DUCT ACCESSORY

PACKAGE

1.Remove the front panel as shown in Figure 1.

2.Remove the four 13¤4-in. screws that secure the chassis to the wall sleeve (see Figure 6). There are 2 screws on each side.

3.Remove the 2 screws that secure the lateral duct ex- tension to the top of the lateral duct adapter as shown in Figure 7.

FIGURE 7 Ð DUCT EXTENSION SCREWS

4.Locate and remove the 2 screws that secure the lateral duct extension to the bracket ¯ange as shown in Figure 8.

5.Carefully slide the chassis away from the extension duct and remove from the sleeve (as shown in Figure 9).

The unit basepan may have water in it. Tilt the unit back slightly when removing it from the sleeve to drain some of the water into the sleeve.

The chassis weighs between 110 and 150 pounds. Take proper safety precautions to avoid personal in- jury when lifting and moving the chassis.

FIGURE 8 Ð BRACKET FLANGE SCREWS

FIGURE 9 Ð PARTIAL REMOVAL OF CHASSIS

FROM WALL SLEEVE

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Contents Contents Service Technician Guide Summary of DANGERS, WARNINGS, and Cautions IntroductionModel Number Nomenclature To Disconnect Power for CORD- Connected Unit General DisassemblyTo Open the Control BOX To Remove the Unit from the Wall SleeveDuct Extension Screws Removing the AIR Baffle To Access INDOOR-AIR Section ComponentsTo Remove the TOP Cover Ð Remove the screw To Remove the AIR Discharge GrilleTo Remove the Gusset To Access OUTDOOR-AIR Section ComponentsTo Remove the Discharge Deck Removing Stator Cleaning and Safety General CleaningComponent Cleaning Schedule Consider the following safety issues before beginningCleaning the Indoor AIR Filter Ð Remove Monthly CleaningReplacing the Indoor AIR Filter Ð Access Tools NeededChassis Cleaning the Vent AIR FilterReplacing the Vent AIR Filter Disconnect ALL Power to Unit Seasonal CleaningAccessing the Indoor and Outdoor Accessing the Indoor FAN and Indoor Cleaning the Indoor and Outdoor CoilsCoils section Section Components onCleaning the Heater Assembly Ð Once Cleaning the Indoor FAN and FANDisconnect ALL Power to the Unit Rotary Compressor Components CompressorBasic Hermetic Compressor Electrical Measurements Compressor TroubleshootingBasic Compressor Troubleshooting Guide SHORTED/OPEN Windings Test Compressor ReplacementRemoving the Compressor Ð Follow the steps Disconnect all power to unitRefrigerant Charging Ð Every mechanical Installed Filter DrierHeater Removal HeatersCommon Causes Heater Failure Removing Heater Screws Typical 52S Unit Operating Controls Operating ControlsNON-USER Adjustable Switches Description of Switch SettingsHigh Heat or High Cool Ð Push button Outside or Vent AIR Ð Push the FAN onlyHEAT/COOL Units Figure Sequence of OperationCooling only Units Figure Heat Pump Units FigureIndoor Thermostat Heat Pump Units Component Operation and TroubleshootingTools Needed Outdoor Frost Thermostat Heat Pump Units Indoor Thermostat IT CONTACTS, ALL 52SQ AA and CP ModelsCapacitor Test Locked OUTOutdoor Frost Thermostat Screws Electrical Components Removal and ReplacementComponent Locations Open Control BOX Basic FAN Motor Electrical Tests FAN Motor TroubleshootingFAN Motor Typical 265 Volt Motors FAN Motor Troubleshooting Chart Typical 208/230 Volt MotorsRemoval FAN Motor ReplacementField 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 Schematic 52SC Ð 208/230 V and 265 V AA and CP Units Wiring SchematicsWiring 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