TECHNICAL & SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES······························2
2. COMBINATION OF INDOOR AND OUTDOOR UNITS··3
3. SAFETY PRECAUTION·······························3
4. PART NAMES AND FUNCTIONS ···············5
5. SPECIFICATIONS ······································11
6. DATA ··························································23
7. OUTLINES AND DIMENSIONS ·················52
8. WIRING DIAGRAM ····································53
9.
REFRIGERANT SYSTEM DIAGRAM
··············54
10. TROUBLESHOOTING ·······························58
11. DISASSEMBLY PROCEDURE ··················60
12. PARTS LIST ···············································63
13. OPTIONAL PARTS ····································68
Indoor unit
[Model names]
PLA-P3AA
PLA-P4AA
PLA-P5AA
PLA-P6AA
No.OC241
REVISED EDITION-B
Ceiling Cassettes
Series PLA
WIRED REMOTE
CONTROLLER
[Service Ref.]
PLA-P3AA.UK
PLA-P3AA
1.UK
PLA-P4AA.UK
PLA-P4AA
1.UK
PLA-P5AA.UK
PLA-P5AA
1.UK
PLA-P6AA.UK
PLA-P6AA
1.UK
R407C
WIRELESS REMOTE
CONTROLLER
SPLIT-TYPE AIR CONDITIONERS
ON/OFF TEMP
MODEL SELECT
NOT AVAILABLE
CHECK
TEST RUN
˚C
AMPM
AMPM
ON/OFF
CENTRALLY CONTROLLED
ERROR CODE
CLOCK
ON OFF
˚C
CHECK
CHECK MODE
FILTER
TEST RUN
FUNCTION
˚C
1Hr.
NOT AVAILABLE
STAND BY
DEFROST
TEMP.
PLA-P•AA.UK
PLA-P•AA
1.UK
PLA-P•AA.UK PLA-P•AA
1.UK
Model name
indication
Revision:
• “12. PARTS LIST” has been
modified.
•
Program timer <P
AC-YT32PT
A>
has been added in
“13. OPTIONAL PARTS”.
• Please void OC241 REVISED
EDITION-A.
Note:
• Refer to the OCT03 REVISED
EDITION-E as for control
relation. This manual does
not cover outdoor units. When
servicing them, please refer to
the service manual No.OC180
REVISED EDITION-A OC261
and this manual in a set.
OC241-B-1.qxp 04.9.29 5:16 PM Page 1
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