Mitsubishi Electric PURY-P72 Service Handbook page 351
Hide thumbs
Also See for PURY-P72:
- Service handbook (412 pages) ,
- Service handbook (404 pages) ,
- Service handbook (387 pages)
Table of Contents
[ IX Troubleshooting ]
2. R410A CITY MULTI R2 Solenoid valve block ASSY (SV4a, SV4b, SV4d), Check valve (CV4a, CV6a, CV8a, CV9a)
replacement instructions
* Following instructions show procedures for replacing service parts for Solenoid valve block ASSY (SV4a, SV4b,
SV4d), Check valve (CV4a, CV6a, CV8a, CV9a). Replace them properly according to the procedures.
1. Applicable models
• PURY-P72, 96TKMU-A (-BS), PURY-P72, 96YKMU-A (-BS)
2. Parts to be serviced, Set-content
Following instructions are applicable to 1-4 service parts on the table below.
NO.
Parts to be serviced
Solenoid valve block ASSY
1
(SV4a, SV4b, SV4d)
Check valve
2
(CV4a, CV6a)
Check valve (CV6a)
3
4
Check valve (CV9a)
3. Procedures
* Precautions for starting replacement
• Check that the main power supply is OFF.
• Check that no refrigerant is in the outdoor unit.
Remove each part according to the 1)-3) procedures on the figure above right before replacing service parts.
Mount the removed parts back in place in a reversed procedure of 1)-3) on the figure next page after replacing
service parts.
(1) Solenoid valve block ASSY (SV4a, SV4b, SV4d) replacement procedures
•
To remove Solenoid valve block ASSY
Remove the Solenoid valve block coil cover, Solenoid valve coil, and peripheral cables.
1
Remove the screw (M5) that fixes the supporting plate for Solenoid valve block and the unit base.
2
Debraze A-F parts (total 6 places).
3
Do not damage heat exchanger fins and peripheral piping devices when removing the Solenoid valve block ASSY.
4
Remove the screw (M5) that fixes the Solenoid valve block and the supporting plate for Solenoid valve block.
5
•
To install Solenoid valve block ASSY
Fix the Solenoid valve block ASSY and the supporting plate with the fixing screw (M5).
6
7
Mount the Solenoid valve block ASSY replacement to the unit with care not to damage heat exchanger fins and
peripheral piping devices. Fix the supporting plate for Solenoid valve block and the unit base with the fixing screw (M5).
8
Braze A-F parts (total 6 places).
9
Mount the Solenoid valve block coil cover, Solenoid valve coil, and peripheral cables back in place.
* Precautions for replacing Solenoid valve block ASSY
• Be sure to perform no-oxidation brazing when brazing.
• Place a wet towel on the Solenoid valve block when heating pipes to keep the temperature of the valve
from exceeding 120ºC.
• After brazing, check the condition around the brazing. After confirming no leakage, evacuate the air inside.
• Perform brazing with care of the flame direction so that it does not burn cables and plates etc. in the unit.
• Remove the brazing part protecting heat exchanger fins from burning, and replace the service parts.
HWE1116D
Things required for replacing
Item
Solenoid valve block service parts set
[Set-content]
• Replacement instructions
• Solenoid valve block ASSY
Service parts replacement instructions
[Set-content]
• Replacement instructions
• Check valve
Service parts replacement instructions
[Set-content]
• Replacement instructions
• Check valve
Service parts replacement instructions
[Set-content]
• Replacement instructions
• Check valve
- 342 -
Code
Numbers
KB00S879G13
1
WT06632X01
1
KB00N305G01
1
KB00S879G14
1
WT06632X01
1
P639183X01
1
KB00S879G15
1
WT06632X01
1
P633133X01
1
KB00S879G16
1
WT06632X01
1
P639180X01
1
GB
Hide quick links:
Table of Contents
Troubleshooting
Related Manuals for Mitsubishi Electric PURY-P72
Related Products for Mitsubishi Electric PURY-P72
- Mitsubishi Electric PURY-P700YSLM-A(1)
- Mitsubishi Electric PURY-P750YSLM-A(1)
- Mitsubishi Electric PURY-P700
- Mitsubishi Electric PURY-P750
- Mitsubishi Electric PURY-P72TJMU-A
- Mitsubishi Electric PURY-P72TYJMU-A
- Mitsubishi Electric CITY MULTI PURY-P72YJMU-A
- Mitsubishi Electric CITY MULTI PURY-P72TJMU-A-BS
- Mitsubishi Electric CITY MULTI PURY-P72YJMU-A-BS
- Mitsubishi Electric CITY MULTI PURY-P72THMU-A
- Mitsubishi Electric CITY MULTI PURY-P72THMU-A-BS
- Mitsubishi Electric CITY MULTI PURY-P72YHMU-A
- Mitsubishi Electric CITY MULTI PURY-P72YHMU-A-BS
- Mitsubishi Electric PURY-P600YSLM-A(1)
- Mitsubishi Electric PURY-P900YSLM-A(1)
- Mitsubishi Electric PURY-P200YMF-B