Gree LSQWF65M/N-M - Removal and Installation of Thermal Expansion Valve

AIR COOLED SCROLL CHILLER MAINTENANCE
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Removal and Installation of Thermal Expansion Valve
Remark: Check the various wirings of refrigerant system. If replacement of expansion valve is confirmed, cut off
power of the unit to reclaim refrigerant.
Step Illustration Handling Instruction
1. Reclaim of
refrigerant.
z Cut off power of the unit.
z Reclaim the refigerant.
2. Remove the
expansion valve.
z In order to ensure
completeness of expansion
valve, wrap the 4-way valve
with wet cloth.
z Unsolder the expansion
valve with the welding gun.
3. Replace the new
expansion valve.
z Replace the new 4-way
valve with the same model.
z Wrap the new expansion
valve with wet cloth and
then install it. Connect the
connection pipe.
z Weld it with welding gun.
Notice: Charge nitrogen into the
pipe during welding.