Gree LSQWRF35VM/NaA-M Service Manual page 94

A series modular air-cooled chiller (heat pump)
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Note: be sure there is no refrigerant inside the system and power supply has been cut off before
replacement.
Steps
4. Take out the main
body.
5. Replace it with a
new one.
6. Tighten coils,
pipe clamps and
rubber pads;
vacuum the system;
recharge refrigerant
and then put back
the panel.
(3) LSQWRF130VM/NhA-M
Test Operation, Troubleshooting and Maintenance
Replacement of the electric expansion valve
Image
Take out the main body of the electric
expansion valve.
• Solder pipes.
• Do charge nitrogen during soldering.
• Protection measures should be
taken during soldering to prevent
surrounding objects from being burnt
out.
• The bulge of the coil should match
with the recess of the main body of
the valve.
• 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.
• Power off the unit and then power it
on again.
• Put back the panel.
90
Instructions

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