Gree GWHD(18)NK3FO Service Manual page 59

6.Remove soundproof sponge and
Since the piping ports on the soundproof sponge are
1
torn easily, remove the soundproof sponge carefully
2
Discharge the refrigerant completely;unsolder
the pipelines connecting the compressor and
the condenser assy,and then remove the 4-way
valve assy.
7. Remove
Isolation sheet
Remove the 3 screws fixing the isolation sheet
and then remove the Isolation sheet.
4-way valv e assy
Isolation sheet
soundproof sponge
4-way valv e assy
Connection Pipe