22
Purging the unit
From factory the unit is supplied and set with a pre-charge
of nitrogen gas. (insert gas) Therefore, all insert gas must
be purged before connecting the assembly piping.
Unscrew the pinch pipe at the end of each refrigerant pipe.
Result
:
All inert gas escapes from the indoor unit.
Note
To prevent dirt or foreign objects from getting
into the pipes during installation, do NOT remove
the pinch pipe completely until you are ready to
connect the piping.
Gas refrigerant port
Liquid refrigerant
port
Summary of Contents for NS 4CREA Series
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