Mitsubishi MSC-GA20VB- User Manual
Mitsubishi MSC-GA20VB– User Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – TECHNICAL CHANGES
- Page 3 – PART NAMES AND FUNCTIONS; OUTDOOR UNIT; SPECIFICATION
- Page 5 – NOISE CRITERIA CURVES
- Page 6 – OUTLINES AND DIMENSIONS
- Page 7 – WIRING DIAGRAM; MC; DSAR; MF
- Page 8 – REFRIGERANT SYSTEM DIAGRAM
- Page 9 – MAX. HEIGHT DIFFERENCE; PERFORMANCE CURVES
- Page 10 – INDOOR UNIT
- Page 12 – HEAT operation
- Page 19 – ACTUATOR CONTROL
- Page 20 – TROUBLESHOOTING; SERVICE FUNCTIONS; 0-1. COMPULSORY DEFROSTING MODE FOR SERVICE
- Page 22 – Check of outdoor unit
- Page 24 – How to check mis-wiring and serial signal error
- Page 25 – Check of outdoor thermistor
- Page 27 – DISASSEMBLY INSTRUCTIONS; Removing the cabinet; Photo 1
- Page 28 – OPERATING PROCEDURE; Photo 4
- Page 29 – Removing the compressor
- Page 30 – STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS ······················3
3. SPECIFICATION·················································3
4. NOISE CRITERIA CURVES ·······························5
5. OUTLINES AND DIMENSIONS ·························6
6. WIRING DIAGRAM ············································7
7. REFRIGERANT SYSTEM DIAGRAM ················8
8. PERFORMANCE CURVES ································9
9. ACTUATOR CONTROL····································19
10. SERVICE FUNCTIONS·····································20
11. TROUBLESHOOTING ······································20
12. DISASSEMBLY INSTRUCTIONS·····················27
13. PARTS LIST······················································30
14. RoHS PARTS LIST···········································32
HFC
utilized
R410A
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
MUH-GA20VB
MUH-GA25VB
MUH-GA35VB
Wireless type
Models
MUH-GA20VB-
MUH-GA20VB-
MUH-GA25VB-
MUH-GA25VB-
MUH-GA35VB-
MUH-GA35VB-
E3
E1
E2
E1
E2
E1
SERVICE MANUAL
OUTDOOR UNIT
Indoor unit service manual
MSC-GA
•
VB Series (OB385)
MSC-CA
•
VB Series (OB393)
MSC-CB
•
VB Series (OB439)
No. OB387
REVISED EDITION-B
Please void OB387 REVISED EDITION-A.
Revision B:
●
MUH-GA35VB -
has been added.
E3
NOTE:
• This service manual describes technical data of outdoor units.
• RoHS compliant products have <G> mark on the spec name plate.
For servicing of RoHS compliant products, refer to the RoHS Parts List.
OB387B-1.qxp 07.5.23 2:47 PM Page 1
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Summary
TECHNICAL CHANGES 2 1 MUH-A07YV- ➔ MUH-GA20VB- 1. Indication of capacity has been changed. (BTU base ➔ kw) 2. Dimension of outdoor unit has been changed. (W780mm x H540mm x D255mm ➔ W800mm x H550mm x D285mm) 3. Stop valve cover has been added.4. Outdoor fan motor has been changed. (RC6V20-AB ➔ RA6V2...
3 PART NAMES AND FUNCTIONS 2 ( ) Air inlet Air outlet Drain outlet Piping Drain hose back : MUH-GA20VBback and side : MUH-GA25VB MUH-GA35VB OUTDOOR UNIT MUH-GA20VBMUH-GA25VBMUH-GA35VB ACCESSORIES MUH-GA20VBMUH-GA25VBMUH-GA35VB Drain socket 1 <Outdoor unit: MUH type> 1 SPECIFICATION 3 CapacityD...
5 NOISE CRITERIA CURVES 4 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATETHRESHOLD OFHEARING FORCONTINUOUSNOISE NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 OCT A VE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR BAND CENTER FREQUENCIES, Hz Test conditions, Cooling :DB35 : WB24 :...
