Service manual

TECHNICAL & SERVICE MANUAL
SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS
CONTENTS
1. FEATURES ···········································2
2. SPECIFICATIONS·································5
3. DATA·····················································6
4. OUTLINES AND DIMENSIONS··········16
5. WIRING DIAGRAM·····························22
6. REFRIGERANT SYSTEM DIAGRAM ······25
7. OPERATION FLOW-CHART··············26
8. MICROPROCESSOR CONTROL·······30
9. TROUBLESHOOTING························51
10. SYSTEM CONTROL···························59
11. DISASSEMBLY INSTRUCTIONS ·······64
12. PARTS LIST········································71
13. OPTIONAL PARTS ·····························83
<Indoor unit>
Models
Indoor unit
Wall Mounted
Series PKH
MITSUBISHI ELECTRIC
-CENTRALLY CONTROLLED-
STAND BY
DEFROST
ON
CHECK DRY
COOL
HEAT
CHECK
SET TEMP
TIMER OFF
AUTO STOP
AUTO START
F
HR
F
LOW HIGH
AUTO RETURN
CHECK TEST RUN
POWER
ON/OFF
HEAT
SET
TEMPERATURE
AUTO COOL/DRY
COOLERWARMER
TIMER MODE HOURS
FAN SPEED LOW/HIOGH
AIR
DISCHARGE
UP/DOWN
SWING
STOP
CHECK TEST RUN
REMOTE CONTROLLER
The Slim Line.
From Mitsubishi Electric.
PKH18FK / PUH18EK
PKH24FK / PUH24EK
PKH30FK / PUH30EK
PKH36FK / PUH36EK
No. OC120
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OC120--1.qxp 24/6/97 12:20 AM Page 1