Indoor | Carrier 52C, P manual

		26
	(F)
	Coil Delta Temperature	24
35	Coil Delta Temperature	22
	Indoor
		20
		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 62 — 52CQ 12,000 BTU HEAT PUMP UNIT FIELD TEMPERATURE CHART — HIGH COOL — 50% RH

Image 35

Carrier 52C, P manual Indoor

Contents

Contents Service Technician Guide Summary of DANGERS, WARNINGS, and Cautions Introduction Tools Needed Unit DisassemblyDisconnect Power for CORD-CONNECTED Unit Disconnect Power for Permanently Connected Hardwired Units Remove the Unit from the Wall Sleeve Open the Control BOX Remove the Discharge Deck Assembly Accessing Unit ComponentsAccessing INDOOR-AIR Section Components Accessing OUTDOOR-AIR Section Components Remove the AIR Discharge Grille Ptac Unit with Lateral Duct Accessory Installed Gusset Removal Location of Screws on Discharge Grille Reinstall Front Panel Component Cleaning Schedule General CleaningCleaning and Safety Cleaning the Outdoor AIR Vent Filter Monthly Cleaning Access and Clean Indoor FAN and FAN Scroll Seasonal CleaningCleaning the Indoor and Outdoor Coils Ptac Exterior Surfaces Rotary Compressor Components Compressor Basic Hermetic Compressor Electrical Measurements Compressor TroubleshootingDisconnect ALL Power to the Unit Basic Compressor Troubleshooting Guide Compressor Replacement SHORTED/OPEN Windings Test Strainer Capillary Tube Location Heater Removal HeatersCommon Causes Heater Failure Acceptable Heater Resistance Values Disconnect ALL Power to Unit UNIT-MOUNTED Controls Operating Controls WALL-MOUNTED Thermostat Controls Remote Thermostat Troubleshooting Do not daisy chain R 24 VAC NON-USER Adjustable Controls Description of Selector Switch Settings Figure Tools Needed Component Operation and TroubleshootingSequence of Operation Indoor Thermostat IT CONTACTS, ALL 52CE, PE Models Indoor Thermostat IT CONTACTS, ALL 52CQ, PQ Models Capacitor Test Electrical Components Removal and Replacement Component 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 Motors Location of Wiring Schematic On Front Panel of Control BOX FAN Motor Replacement 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 Refer to Figures 68-72 for Typical Wiring Schematics Wiring Diagrams Component Legend CAP Component Connection Marked Fan Motor Page Most Frequent Ptac Service Questions Accessory Form Number Part Number Description Accessories Amps 52C Performance and Physical Data 52PE-512---3 52P Performance and Physical DataPage Page Copyright 2002 Carrier Corporation