TECHNICAL & SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
CONTENTS
1. FEATURES ···········································2
2. PART NAMES AND FUNCTIONS ········3
3. SPECIFICATIONS·································6
4. DATA ·····················································8
5. OUTLINES AND DIMENSIONS··········14
6. WIRING DIAGRAM·····························18
7. REFRIGERANT SYSTEM DIAGRAM ······19
8. OPERATION FLOW-CHART ··············20
9. MICROPROCESSOR CONTROL·······24
10. TROUBLESHOOTING ························41
11. DISASSEMBLYPROCEDURE ···········49
12. PARTS LIST ········································51
13. OPTIONAL PARTS ·····························55
Indoor unit
PEH-2.5EKHA
PEH-3EKHA
PEH-4EKHSA
PEH-5EKHSA
No. OC153
[Models]
PEH-2.5EKHA
2
.TH
PEH-3EKHA
2
.TH
PEH-4EKHSA
2
.TH
PEH-5EKHSA
2
.TH
[Service Ref.]
This manual does not cover the following
outdoor units. When servicing them,
please refer to the service manual
No.OC128,150 and this manual in a set.
[Service Ref.]
PUH-2.5VKA
2
PUH-3VKA
2
,3YKA
2
PUH-4YKSA
3
PUH-5YKSA
3
PUH-2.5VKA
2
.UK
PUH-3VKA
2
.UK
PUH-3YKA
2
.UK
PUH-4YKSA
2
.UK
PUH-5YKSA
2
.UK
Indoor unit
Ceiling Concealed
Series PEH
The Slim Line.
From Mitsubishi Electric.
FILTER
CHECK MODE
TEST RUN
Remote controller