Table of Contents
Advertisement
Purging the unit
A
On delivery, the indoor unit is loaded with inert gas.
All this gas must therefore be purged before connecting the
assembly piping. To purge the inert gas, proceed as follows.
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.
AM
FNMD
/ AM
AM
JNMD
/ AM
AM
JNMP
Connecting the refrigerant pipe
There are two refrigerant pipes of differing diameters:
A smaller one for the liquid refrigerant
A larger one for the gas refrigerant
The inside of copper pipe must be clean & has no dust.
The connection procedure for the refrigerant pipes varies
according to the exit position of the pipes from the indoor unit,
as seen when facing the indoor in the "A" side.
Liquid refrigerant port
Gas refrigerant port
Drain hose port
FNHD
JNHD
AM
FNLD
AM
MNMD
/ AM
The designs and shape are subject to change
according to the model.
Refrigerant oil
Torque wrench
MNHD
Spanner
Flare nut
Union
21
Hide quick links:
Advertisement
Table of Contents
