SERVICE MANUAL
AY-X9PSR
SC213AYX9PSR/C
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the
safety and performance of the set.
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
CHAPTER 1. SPECIFICATION
[1] SPECIFICATION ...........................................1-1
[2] EXTERNAL DIMENSION ..............................1-2
[3] WIRING DIAGRM..........................................1-3
[4] ELECTRICAL PARTS....................................1-4
CHAPTER 2. EXPLANATION OF CIRCUIT AND OP-
ERATION
[1] BLOCK DIAGRAMS ......................................2-1
[2] MICROCOMPUTER CONTROL SYSTEM........2-3
[3] FUNCTION..................................................2-18
CHAPTER 3. FUNCTION AND OPERATION OF PRO-
TECTIVE PROCEDURES
[1] PROTECTION DEVICE FUNCTIONS AND
OPERATIONS ...............................................3-1
[2] AIR CONDITIONER OPERATION IN
THERMISTOR ERROR...............
..................3-2
[3] THERMISTOR TEMPERATURE CHAR-
ACTERISTICS...............................................3-3
[4] GENERAL TROUBLESHOOTING CHART....3-6
[5] MALFUNCTION (PARTS) CHECK METH-
OD..................................................................3-8
[6] CHART .........................................................3-10
[7] TROUBLE SHOOTING GUIDE ................... 3-11
CHAPTER 4. REFRIGERATION CYCLE
[1] SCHEMATIC DIAGRAM ................................ 4-1
[2] STANDARD CONDITION ...........................
... 4-1
[3] TEMPERATURE AT EACH PART AND
PRESSURE IN 3-WAY VALVE....................... 4-2
[4] PERFORMANCE CURVES ........................... 4-2
CHAPTER 5. DISASSEMBLY PROCEDURE
[1] INDOOR UNIT ............................................... 5-1
[2]
[3]
OUTDOOR UNIT ........................................... 5-4
CHAPTER 6. OPERATION MANUAL
CONTROL BOX............................................. 5-7
PA
RTS LIST
CONTENTS
SPLIT TYPE ROOM AIR CONDITIONER
INDOOR UNIT OUTDOOR UNIT
MODELS
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts
identical to those specified should be used.
AE-X9PSR
AY-X12PSR AE-X12PSR
AY-X9PSR
MODELS
CHAPTER 7. INSTALLATION MANUAL
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