Carrier P, 52C manual Introduction, Summary of DANGERS, WARNINGS, and Cautions

52C,P

SERIES

INTRODUCTION

The focus of this manual is to provide basic information on service procedures, safety, troubleshooting, clean- ing, and component replacement for service techni- cians. It is intended for use only by HVAC service technicians who have successfully completed instruction and received Type I Certification from the U.S. Environmental Protection Agency.

The instructions in this manual are general in nature and are not to be substituted for installation and ser- vice instructions shipped with the unit. No attempt to install, operate, adjust, repair, or dismantle any equip- ment should be made until the manufacturer’s instruc- tions are read and thoroughly understood by the service technician. Even equipment that seems famil- iar may have specific model differences from year to year. Always review manufacturer’s instructions.

Model 52C,P packaged terminal air conditioner (PTAC) and heat pump units are self-contained for installation through the wall for individual room heat- ing and cooling. The Model 52C,P polymer and metal sleeves are permanently fastened to the wall; the unit chassis slides out of the sleeve to allow the service technician easy access. Many accessories are offered to complement the unit’s performance and comfort control.

Before beginning any service procedures, it is impor- tant to check the unit model number. See Figure 1 and

2.Units that seem similar may have subtle differences that could affect service procedures. The following units are covered in this manual:

52CE — 60 Hz cooling with electric heat units 52CQ — 60 Hz heat pump with electric heat units 52PE — 60 Hz cooling with electric heat units 52PQ — 60 Hz heat pump with electric heat units 52PC — 60 Hz cooling only units

Knowing which model is being serviced will help deter- mine if the unit is performing at optimum levels. The model number is located on the data information plate beneath the front panel of the unit. See Figure 1. The data information plate also lists voltage ranges and other important electrical information about the unit.

SUMMARY OF DANGERS, WARNINGS, AND CAUTIONS

The terms DANGER, WARNING, and CAUTION have specific meanings that identify the degree of hazard. Typically in the HVAC industry, these specific mean- ings are:

There is an immediate hazard which WILL result in severe personal injury or death.

Potential hazards or unsafe practices which COULD result in minor personal injury or equip- ment damage.

MODEL			52PQA312301AA
SERIAL		3701X11520
DATE OF MFG.						09/12/2001
VOLT RANGE						187-253
VOLTS		230/208
PH	1					HZ	60
MIN CKT AMPACITY							19.3
R-22 OZ		34
DESIGN PSIG 350 HIGH SIDE, 150 LOW SIDE
				COOLING
BTU/HR		12,100/12,000
AMPS		4.8/5.3
WATTS		1090/1122
EER		11.1/10.7
COMP		RLA				6.1
		LRA				29
FAN		FLA				0.75
MOTOR			HP			1/8
					HEATING
BTU/HR		11,000/11,000
AMPS		15.6/14.5
WATTS		3570/2997
COP		3.2/3.2
HEATER		AMPS				14.8/13.7
		WATTS				3400/2850
BTU/HR		WATER
		STEAM
				AMP		CANADIAN INSTALLATION
USE	20
						MAX FUSE		MAX BREAKER
TIME DELAY FUSE
OR HACR TYPE						20	AMP		20	AMP
CIRCUIT BREAKER

FIGURE 1 — SAMPLE DATA INFORMATION

PLATE

Hazards or unsafe practices which COULD result in severe personal injury or death.

2