Mitsubishi Electric PLH-4GKSB1.UK User Manual

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
FILTER
CHECK MODE
TEST RUN
REMOTE CONTROLLER
The Slim Line.
From Mitsubishi Electric.
[Service Ref.]
PLH-3GK(H)B 1 .UK
PLH-4GK(H)SB
1 .UK
PLH-5GK(H)SB
1 .UK
PLH-6GK(H)SB
1 .UK

Mitsubishi Electric PLH-4GKSB1.UK Specifications

General

Energy Efficiency Class (Cooling)	A++
Energy Efficiency Class (Heating)	A+
Indoor Unit Noise Level	21 dB(A)
Power Supply	220-240V, 50Hz
Noise Level (Outdoor Unit)	50 dB(A)
Refrigerant	R32