SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ··································· 3
2. PART NAMES AND FUNCTIONS ····················· 4
3. SPECIFICATION ················································ 4
4. NOISE CRITERIA CURVES ······························ 6
5. OUTLINES AND DIMENSIONS ························ 6
6. WIRING DIAGRAM ············································ 7
7. REFRIGERANT SYSTEM DIAGRAM ··············· 9
8. PERFORMANCE CURVES ····························· 11
9. ACTUATOR CONTROL ··································· 16
10. SERVICE FUNCTIONS ···································· 17
11. TROUBLESHOOTING ····································· 18
12. DISASSEMBLY INSTRUCTIONS ···················· 44
13. RoHS PARTS LIST ·········································· 48
Models
MUZ-GB50VA -
E1
MUZ-GB50VA -
E2
MUZ-GB50VA -
E3
OUTDOOR UNIT
Indoor unit service manual
MSZ-GB·VA Series (OB454)
NOTE:
• This service manual describes technical data of the outdoor units.
HFC
utilized
R410A
Please void OB455 REVISED EDITION-F.
No. OB455
REVISED EDITION-G
Revision G:
• Errors in TROUBLESHOOTING have been
corrected.
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