Gree LSQWRF35VM/NaA-M Service Manual page 85

Note: be sure power supply has been cut off and refrigerant has been reclaimed before replacement.
Steps
3. Record
the direction
of the 4–way
valve before
desoldering. The
multi-system
unit can not take
other system
as a example.
4. Replace it
with a new one
and clean the
system.
5. Vacuum
the system
and recharge
refrigerant.
Test Operation, Troubleshooting and Maintenance
Replacement of the 4–way valve
Image
• Remember installation direction
before replacement.
• Remove coils.
• Wrap it with wet cloth to keep its
completeness for further analysis.
• Desolder the 4–way valve.
• Do use the one with the same
model for replacement. The one
with different model can be used
after being approved by relative
technicians.
• Wrap it with wet cloth.
• Reconnect the main body with
four pipes as before.
• Solder the pipelines with a
soldering gun.
• Do charge nitrogen during
desoldering.
• Keep the vacuum degree to
-1.0bar. Vacuuming period would
be longer for the repaired unit.
• Charged refrigerant should be
the same as that stated at the
nameplate.
81
Instructions