Gree R410A, Manual

Page: 76 / 90

74
for North America
Photovoltaic Direct-driven VRF
3. Replace
4-way valve
● Replace 4-way valve
Note: During welding process, do not
4. Replace
4-way valve
● Weld the connection position
between 4-way valve and pipeline
Note: During welding process, do not
Remival operation for eletronic expansion valve
Remark: Before removing the electronic expansion valve, please make sure that there’s no refrigerant in th pipeline of system and the
power is disconnected
Process Photo Operation Instruction
1. Disconnec
the electronic
expansion
valve from the
pipeline
● Remove the coil of electroc
● Weld the connection pipe for
expansion valve, and then pull out the
connection pipe
Note
：
During welding process, do
2. Take out
the electronic
expansion valve
and replace it
Take out the electronic expansion
valve and replace it