TECHNICAL & SERVICE MANUAL
SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS
CONTENTS
1. FEATURES ···········································3
2. PART NAMES AND FUNCTIONS········5
3. SPECIFICATIONS·································7
4. DATA ···················································11
5. OUTLINES AND DIMENSIONS··········15
6. WIRING DIAGRAM·····························18
7.
REFRIGERANT SYSTEM DIAGRAM
······19
8. OPERATION FLOW-CHART··············20
9. MICROPROCESSOR CONTROL·······24
10. TROUBLESHOOTING························47
11. 4-WAY AIR FLOW SYSTEM···············55
12. SYSTEM CONTROL···························60
13. DISASSEMBLY PROCEDURE···········65
14. PARTS LIST········································68
15. OPTIONAL PARTS ·····························78
[Model names]
PLH-3GK(H)B
PLH-4GK(H)SB
PLH-5GK(H)SB
PLH-6GK(H)SB
No. OC148
1997
This manual does not cover the following
outdoor units. When servicing them,
please refer to the service manual
No.OC150 and this manual in a set.
[Service Ref.]
PUH-3YKA2.UK
PUH-3VKA2.UK
PUH-4YKSA2.UK
PUH-5YKSA2.UK
PUH-6YKSA2.UK
INDOOR UNIT
Ceiling Cassettes
Series PLH
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