Pipe Connection - Gree NCHS2D Owner's Manual

4.2 Pipe Connection

4.2.1 Installation Instruction for Silencer
If there's silencer in the packing accessories, please refer to below diagram for its installation
method. Take NCHS4D for example.
Connect either left or right side of converter to outdoor unit for piping according to installation
space;
(1) Installation instruction for silencer while the right side of converter is connected to outdoor
unit.
Select the size matching the diameter of the muffler on the high-pressure gas pipe of mode
converter, and cut the high-pressure gas pipe of mode converter at a suitable position with a pipe
cutter. The outer diameter of the muffler should match the inner diameter of the high-pressure gas
pipe of mode converter to facilitate the muffler to insert into the high-pressure gas pipe. At the same
time, select the size of low-pressure gas pipe of the mode converter matched with the diameter of the
muffler, and use a pipe cutter to cut the high-pressure gas pipe of the mode converter at a suitable
position, and the outer diameter of the muffler should match the inner diameter of the low-pressure
gas pipe to facilitate the muffler to insert into the low-pressure gas pipe.
Take out the two silencers, insert nozzle ODΦ22 mm in silencer 1 to the high pressure gas pipe
on the right side of converter, then insert nozzle ODΦ28 mm in silencer 2 to the low pressure gas pipe
on the right side of converter, conduct welding.
Fig.4.1.13
Fig.4.2.1
14
GMV6 HR Mode Exchange Box