March 2018
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
CONTENTS
1. SAFETY PRECAUTION ······································· 2
2. OVERVIEW OF UNIT ··········································· 5
3. SPECIFICATIONS ················································ 9
4. OUTLINES AND DIMENSIONS ···························10
5. WIRING DIAGRAM ············································· 12
6
. NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION·············
13
7. TROUBLESHOOTING ········································ 17
8. DISASSEMBLY PROCEDURE ··························· 26
BRANCH BOX
HFC
utilized
R410A
Note:
•Thisservicemanual
describestechnicaldataof
branchbox.Asforindoor
unitsandoutdoorunit,
refertoitsservicemanual.
PARTS CATALOG (OCB664)
[Service Ref.]
PAC-MK53BC
PAC-MK53BCB
PAC-MK33BC
PAC-MK33BCB
[Model Name]
<Branch box>
PAC-MK53BC
PAC-MK53BCB
PAC-MK33BC
PAC-MK33BCB
PAC-MK53BC
No. OCH664