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Friedrich
2007 Friedrich Air Conditioning Co, Post Office Box 1540 San Antonio, Texas, RAC-Svc-07
Models:
2007
1
36
36
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Hermetic Component Replacement
Maintenance
Problem
Timer
Testing The Electronic Control
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Friedrich Air Conditioning Co.
Post Office Box 1540 • San Antonio, Texas
78295-1540
4200 N. Pan Am Expressway • San Antonio, Texas
78218-5212
(210)
357-4400
• FAX (210)
357-4480
www.friedrich.com
Printed in the U.S.A.
RAC-Svc-07
(4-07)
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Contents
Room Air Conditioners
Timer
Power
2007
TABLE OF CONTENTS
INTRODUCTION
TYPICAL UNIT COMPONENTS
ROOM AIR CONDITIONERS LIMITED WARRANTY
FIRST YEAR
SECOND THROUGH FIFTH YEAR
ROUTINE MAINTENANCE
S S 08 L
UNIT IDENTIFICATION
RAC Serial Number Identification Guide
Chassis-Q
ELECTRICAL DATA
ELECTRIC SHOCK HAZARD
FUNCTIONAL COMPONENT DEFINITIONS
ELECTRONIC CONTROLS
TESTING THE ELECTRONIC CONTROLS
MECHANICAL COMPONENTS
TESTING THE ELECTRONIC CONTROL
ELECTRONIC CONTROLS
REFRIGERATION SYSTEM SEQUENCE OF OPERATION
Refrigerant System Components
HERMETIC COMPONENT REPLACEMENT
HERMETIC COMPONENT REPLACEMENT cont’d
EQUIPMENT REQUIRED
EQUIPMENT MUST BE CAPABLE OF
REFRIGERANT CHARGING
METHOD OF CHARGING
REFRIGERANT CHARGING cont’d
UNDERCHARGED REFRIGERANT SYSTEMS
NOTE Heat pump refrigeration drawing
OVERCHARGED REFRIGERANT SYSTEMS
REFRIGERANT CHARGING cont’d
RESTRICTED REFRIGERANT SYSTEM
POSSIBLE CAUSES
CORRECTIONS
NORMAL FUNCTION OF VALVE
MALFUNCTION OF VALVE
Problem
Problem
Problem
Possible Cause
Replace fuse, reset breaker. If repeats, check
Overload inoperative. Opens too soon
Sublimation
Heat anticipator resistor shorted on applicable
TROUBLESHOOTING CHART - COOLING
REFRIGERANT SYSTEM DIAGNOSIS - HEATING
TROUBLESHOOTING CHART - HEATING
ELECTRICAL TROUBLESHOOTING CHART - HEAT PUMP
REFRIGERANT SYSTEM DIAGNOSIS - HEATING
HEAT PUMP
MODELS
MODELS
MODELS
MODEL
SL36L30-A
MODEL
SL28L30-A
SL36L30-B
MODELS
MODEL
EQ08L11-A
ES12L33-A, ES16L33-A, EM18L34-A, EM24L35-A
MODELS
MODEL
EL36L35-A
MODEL
YS09L10-A, YS09L10-B
YS13L33-A, YM18L34-A
MODELS
YL24L35-A
MODELS
Friedrich Air Conditioning Co
Post Office Box 1540 San Antonio, Texas
4200 N. Pan Am Expressway San Antonio, Texas
RAC-Svc-07
