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-P3AAH1.UK, PLH-
P4AAH1.UK, PLH-P5AAH1.UK
and PLH-P6AAH1 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
WIRELESS REMOTE
CONTROLLER
ON/OFF TEMP
MODEL SELECT
NOT AVAILABLE
CHECK
TEST RUN
˚C
AMPM
AMPM
PLH-P•AAH.UK PLH-P•AAH1.UK PLH-P•AAH.UK PLH-P•AAH1.UK
Ceiling Cassettes
Series PLH
OC236(181A)---1.qxp 01/9/27 5:30 PM Page 1
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