SERVICE MANUAL
AE3XM18JR
S1804AEX3M18J
AE-X3M18JR
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. SPECIFICATIONS
[1] SPECIFICATION............................................ 1-1
[2] EXTERNAL DIMENSION............................... 1-2
[3] CAPACITY TABLE ......................................... 1-3
[4] ELECTRICAL PARTS .................................... 1-3
[5] WIRING DIAGRAMS...................................... 1-4
CHAPTER 2. EXPLANATION OF CIRCUIT AND OP-
ERATION
[1] BLOCK DIAGARM ......................................... 2-1
[2] FUNCTIONS .................................................. 2-2
[3] ACTIVE FILTER CIRCUIT ............................. 2-4
[4] EXPLANATION OF IPM DRIVE CIRCUIT........ 2-6
CHAPTER 3. FUNCTION AND OPERATION OF PRO-
TECTIVE PROCEDURES
[1] PROTECTIVE FUNCTIONS AND OPERA-
TIONS ............................................................ 3-1
[2] TROUBLESHOOTING GUIDE ......................3-2
CHAPTER 4. REFRIGERATION CYCLE
[1] REFRIGERATION SYCLE.............................4-1
[2] REFRIGERANT PIPE INSTALLATION
WORKS .........................................................4-2
CHAPTER 5. DISASSEMBLING PROCEDURE
[1] OUTDOOR UNIT...........................................5-1
Parts List
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CONTENTS
MULITI SPLIT TYPE
ROOM AIR CONDITIONERS
(OUTDOOR UNIT)
MODEL
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.
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