SERVICE MANUAL
Indoor unit
[Model Name] [Service Ref.]
PKA-A12LA
PKA-A12LA.TH
PKA-A18LA
PKA-A18LA.TH
PARTS CATALOG (OCB761)
INDOOR UNIT
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SPLIT-TYPE, AIR CONDITIONERS
No. OCH761
REVISED EDITION-A
May 2021
CONTENTS
1. REFERENCE MANUAL ······················2
2. SAFETY PRECAUTION ······················3
3. PARTS NAMES AND FUNCTIONS ·······5
4. SPECIFICATIONS ······························6
5. NOISE CRITERION CURVES ···············7
6. OUTLINES AND DIMENSIONS ············8
7. WIRING DIAGRAM ···························· 9
8. REFRIGERANT SYSTEM DIAGRAM··· 10
9. TROUBLESHOOTING ······················ 11
10. FUNCTION SETTING ······················· 26
11. SPECIAL FUNCTION ······················· 27
12. DISASSEMBLY PROCEDURE ··········· 29
13. REMOTE CONTROLLER ·················· 33
OCH761 is void.
Revision:
• Outlines and dimensions
have been modified
in REVISED EDITION-A.