Carrier 52C manual Ptac Exterior Surfaces

Page 12

52C,P

SERIES

FIGURE 23 — PTAC EXTERIOR SURFACES

FIGURE 25 — CLEANING COILS

FIGURE 24 — VACUUMING EVAPORATOR

COIL

DRAIN VALVE

FIGURE 26 — BASEPAN SECTION

12

Image 12

Contents Service Technician Guide ContentsIntroduction Summary of DANGERS, WARNINGS, and CautionsUnit Disassembly Disconnect Power for CORD-CONNECTED UnitDisconnect Power for Permanently Connected Hardwired Units Tools NeededOpen the Control BOX Remove the Unit from the Wall SleeveAccessing Unit Components Accessing INDOOR-AIR Section ComponentsAccessing OUTDOOR-AIR Section Components Remove the Discharge Deck AssemblyPtac Unit with Lateral Duct Accessory Installed Remove the AIR Discharge GrilleGusset Removal Reinstall Front Panel Location of Screws on Discharge GrilleGeneral Cleaning Cleaning and SafetyComponent Cleaning Schedule Monthly Cleaning Cleaning the Outdoor AIR Vent FilterSeasonal Cleaning Cleaning the Indoor and Outdoor CoilsAccess and Clean Indoor FAN and FAN Scroll Ptac Exterior Surfaces Compressor Rotary Compressor ComponentsCompressor Troubleshooting Disconnect ALL Power to the UnitBasic Hermetic Compressor Electrical Measurements Compressor Replacement Basic Compressor Troubleshooting GuideSHORTED/OPEN Windings Test Strainer Capillary Tube Location Heaters Common Causes Heater FailureHeater Removal Disconnect ALL Power to Unit Acceptable Heater Resistance ValuesOperating Controls UNIT-MOUNTED ControlsRemote Thermostat Troubleshooting WALL-MOUNTED Thermostat ControlsDo not daisy chain R 24 VAC Description of Selector Switch Settings Figure NON-USER Adjustable ControlsComponent Operation and Troubleshooting Sequence of OperationTools Needed Indoor Thermostat IT CONTACTS, ALL 52CE, PE Models Indoor Thermostat IT CONTACTS, ALL 52CQ, PQ Models Electrical Components Removal and Replacement Capacitor TestComponent Locations Open Control BOX FAN Motor Troubleshooting FAN MotorBasic FAN Motor Electrical Tests FAN Motor Troubleshooting Chart Typical 208/230 Volt Motors Typical 265 Volt MotorsFAN Motor Replacement Location of Wiring Schematic On Front Panel of Control BOXField Temperature Charts 100 110 120 130 52P 12,000 BTU Unit Field Temperature Chart High Cool 50% RH Indoor Series Indoor 52C,P Series Page 000 Btu 52P-12,000 Btu 52C-12,000 Btu 15,000 Btu Wiring Diagrams Refer to Figures 68-72 for Typical Wiring SchematicsComponent Legend CAP Component Connection Marked Fan Motor Page Most Frequent Ptac Service Questions Accessories Accessory Form Number Part Number Description52C Performance and Physical Data Amps52P Performance and Physical Data 52PE-512---3Page Page Copyright 2002 Carrier Corporation