Gree R410A Manual page 76

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