Mitsubishi Electric MXZ-8B140VA, Technical & Service Manual

Page: 1 / 531

TECHNICAL & SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
CONTENTS
1. SAFETY PRECAUTION ······································ 2
2. OVERVIEW OF UNITS ········································ 5
3. SPECIFICATIONS ············································· 12
4. DATA ·································································· 13
5. OUTLINES AND DIMENSIONS ························ 16
6. WIRING DIAGRAM ············································ 17
7. NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION ··· 19
8. TROUBLESHOOTING ······································· 21
9. ELECTRICAL WIRING ······································ 54
10. WIRING SPECIFICATIONS. ······························ 56
11. SYSTEM CONTROL ·········································· 57
12. REFRIGERANT PIPING TASK·························· 59
13. DISASSEMBLY PROCEDURE ·························· 62
INDOOR UNITS COMBINATION SHEETS
No. OCH480
REVISED EDITION-A
[Model name] [Service Ref.]
<Outdoor unit>
MXZ-8B140VA
MXZ-8B140VA
MXZ-8B160VA
MXZ-8B160VA
MXZ-8B140YA
MXZ-8B140YA
MXZ-8B160YA
MXZ-8B160YA
HFC
utilized
R410A
September 2011
NOTE:
• This service manual
describes technical data
of outdoor unit. As for
indoor units and branch
box(OCH508), refer to its
service manual.
• RoHS compliant products
have <G> mark on the
spec name plate.
OUTDOOR UNIT
Model name
indication
PARTS CATALOG (OCB480)
Revision:
• Errors in "3.
SPECIFICATIONS"
have been corrected in
REVISED EDITION-A.
• Some descriptions have
been modified.
• Please void OCH480.