TECHNICAL & SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ······························2
2.
COMBINATION OF INDOOR AND OUTDOOR UNITS
··2
3. SAFETY PRECAUTION ·······························2
4. PART NAMES AND FUNCTIONS ···············4
5. SPECIFICATIONS ······································10
6. DATA ··························································18
7. OUTLINES AND DIMENSIONS ·················43
8. WIRING DIAGRAM ·······································44
9. REFRIGERANT SYSTEM DIAGRAM··············45
10. TROUBLESHOOTING ·······························47
11. DISASSEMBLY PROCEDURE ··················49
12. PARTS LIST ···············································52
13. OPTIONAL PARTS ····································57
Indoor unit
[Model names]
PLH-P3AAH
PLH-P4AAH
PLH-P5AAH
PLH-P6AAH
No. OC236
REVISED EDITION-A
• PLH-P3AAH
1
.UK, PLH-
P4AAH
1
.UK, PLH-P5AAH
1
.UK
and PLH-P6AAH
1
are added in
REVISED EDITION-A.
Outdoor units PUH-
P3,4VGAA.UK and PUH-
P3,4,5,6YGAA.UK which are con-
nected to those indoor units are
also added in it.
• Please void OC236.
• Refer to the OCT03 REVISED
EDITION-C as for control relation.
This manual does not cover
outdoor units. When serving
them, please refer to the service
manual No.OC180REVISED EDI-
TION-A, OC261 and this manual
in a set.
INDOOR UNIT
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.
WIRED REMOTE
CONTROLLER
SPLIT-TYPE, HEAT PUM PAIR CONDITIONERS
[Service Ref.]
PLH-P3AAH.UK
PLH-P3AAH
1
.UK
PLH-P4AAH.UK
PLH-P4AAH
1
.UK
PLH-P5AAH.UK
PLH-P5AAH
1
.UK
PLH-P6AAH.UK
PLH-P6AAH
1
.UK
R407C
ON/OFF
WIRELESS REMOTE
CONTROLLER
ON/OFF
TEMP
MODEL SELECT
NOT AVAILABLE
CHECK TEST RUN
˚C
AMPM
AMPM
FILTER
CHECK MODE
TEST RUN
PLH-P•AAH.UK PLH-P•AAH
1
.UK
PLH-P•AAH.UK PLH-P•AAH
1
.UK
Ceiling Cassettes
Series PLH
OC236(181A)---1.qxp 01/9/27 5:30 PM Page 1
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