13
PIPING WORK
Rubber gasket must be mounted (factory supplied), otherwise
water leakage may be caused.
valves and drain valve, which are essential to maintenance.
Provide a 50 mesh or more water strainer at the water inlet
through a narrow space between the plates. Therefore, there
is a possibility that freezing or corrosion may occur if foreign
This is not required when cooling mode is not used.
Water Strainer
(50 mesh or more recommended)
Water Flow Direction →
The water piping connection needs to be completed after
Drain pipe is not needed if cooling operation is not used.
The recommended drain pipe of the indoor unit is polyvinyl
chloride pipe with a 1 inch inner diameter.
otherwise it may cause water leakage.
The drain pipe should always be open to the atmosphere, free
of frost and in continuous slope to the down side in case that
water leakage exists.
The safety valve is activated when water pressure
reaches 3 bar.
(2) Additional water strainer
8.3.2 Drain pipes connection
For a correct drainage, connect the drain pipe for the unit to
the general draining system.
valve
Step 1 Insert the drain
pipe for the safety valve
into the drain pipe for the
indoor unit.
of indoor unit
Insert the drain pipe of
indoor unit completely to
the end of the hose
connection.
.
3
Insulate the drain pipe after connecting
the drain hose.
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