Carrier 52C, P manual Indoor

Page 35

		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

Contents Contents Service Technician GuideSummary of DANGERS, WARNINGS, and Cautions IntroductionTools Needed Unit DisassemblyDisconnect Power for CORD-CONNECTED Unit Disconnect Power for Permanently Connected Hardwired UnitsRemove the Unit from the Wall Sleeve Open the Control BOXRemove the Discharge Deck Assembly Accessing Unit ComponentsAccessing INDOOR-AIR Section Components Accessing OUTDOOR-AIR Section ComponentsRemove the AIR Discharge Grille Ptac Unit with Lateral Duct Accessory InstalledGusset Removal Location of Screws on Discharge Grille Reinstall Front PanelComponent Cleaning Schedule General CleaningCleaning and Safety Cleaning the Outdoor AIR Vent Filter Monthly CleaningAccess and Clean Indoor FAN and FAN Scroll Seasonal CleaningCleaning the Indoor and Outdoor Coils Ptac Exterior Surfaces Rotary Compressor Components CompressorBasic Hermetic Compressor Electrical Measurements Compressor TroubleshootingDisconnect ALL Power to the Unit Basic Compressor Troubleshooting Guide Compressor ReplacementSHORTED/OPEN Windings Test Strainer Capillary Tube Location Heater Removal HeatersCommon Causes Heater Failure Acceptable Heater Resistance Values Disconnect ALL Power to UnitUNIT-MOUNTED Controls Operating ControlsWALL-MOUNTED Thermostat Controls Remote Thermostat TroubleshootingDo not daisy chain R 24 VAC NON-USER Adjustable Controls Description of Selector Switch Settings FigureTools 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 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 MotorsLocation of Wiring Schematic On Front Panel of Control BOX FAN Motor ReplacementField 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 DiagramsComponent Legend CAP Component Connection Marked Fan Motor Page Most Frequent Ptac Service Questions Accessory Form Number Part Number Description AccessoriesAmps 52C Performance and Physical Data52PE-512---3 52P Performance and Physical DataPage Page Copyright 2002 Carrier Corporation