Series | Carrier P, 52C instruction

	(F)	24								SERIES	52C,P
	TemperatureDelta	22
		22
36	Coil	20
		20
	Indoor
		18
		50	60	70	80	90	100	110	120	130
					Outdoor Air Temperature (F) (40% RH)

70 F Indoor

75 F Indoor

80 F Indoor

85 F Indoor

FIGURE 63 — 52CE 12,000 BTU HEAT/COOL UNIT FIELD TEMPERATURE CHART — HIGH COOL — 50% RH

Image 36

Carrier P, 52C manual Series

Contents

Service Technician Guide Contents Introduction Summary of DANGERS, WARNINGS, and Cautions Unit Disassembly Disconnect Power for CORD-CONNECTED UnitDisconnect Power for Permanently Connected Hardwired Units Tools Needed Open the Control BOX Remove the Unit from the Wall Sleeve Accessing Unit Components Accessing INDOOR-AIR Section ComponentsAccessing OUTDOOR-AIR Section Components Remove the Discharge Deck Assembly Ptac Unit with Lateral Duct Accessory Installed Remove the AIR Discharge Grille Gusset Removal Reinstall Front Panel Location of Screws on Discharge Grille General Cleaning Cleaning and SafetyComponent Cleaning Schedule Monthly Cleaning Cleaning the Outdoor AIR Vent Filter Seasonal Cleaning Cleaning the Indoor and Outdoor CoilsAccess and Clean Indoor FAN and FAN Scroll Ptac Exterior Surfaces Compressor Rotary Compressor Components Compressor Troubleshooting Disconnect ALL Power to the UnitBasic Hermetic Compressor Electrical Measurements Compressor Replacement Basic Compressor Troubleshooting Guide SHORTED/OPEN Windings Test Strainer Capillary Tube Location Heaters Common Causes Heater FailureHeater Removal Disconnect ALL Power to Unit Acceptable Heater Resistance Values Operating Controls UNIT-MOUNTED Controls Remote Thermostat Troubleshooting WALL-MOUNTED Thermostat Controls Do not daisy chain R 24 VAC Description of Selector Switch Settings Figure NON-USER Adjustable Controls Component 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 Test Component 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 Motors FAN Motor Replacement Location of Wiring Schematic On Front Panel of Control BOX Field 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 Schematics Component Legend CAP Component Connection Marked Fan Motor Page Most Frequent Ptac Service Questions Accessories Accessory Form Number Part Number Description 52C Performance and Physical Data Amps 52P Performance and Physical Data 52PE-512---3Page Page Copyright 2002 Carrier Corporation