Installation Manual 17
Indoor Unit Drain Piping
HEAT INSULATION
1. Use the heat insulation material for the refrigerant piping which has an excellent heat-
resistance (over 120°C(248°F) ).
2. Precautions in high humidity
circumstance:
This air conditioner has been tested
according to the "KS Standard
Conditions with Mist" and con here is
not any default. However, if it is
operated for a long time in high humid
atmosphere (dew point temperature:
more than 23°C(73.4°F)), water drops
are liable to fall. In this case, add heat
insulation material according to the
following procedure:
• Heat insulation material to be prepared... Adiabatic glass wool with thickness 10 to 20mm(0.39
to 0.79inch).
• Stick glass wool on all air conditioners that are located in ceiling atmosphere.
• In addition to the normal heat insulation (thickness: more than 8mm(0.31inch)) for refrigerant
piping (gas piping: thick piping) and drain piping, add further 10mm to 30mm(0.39inch to 1.18
inch) thickness material.
FORM THE PIPINGS
1. Wrap the connecting portion of indoor
unit with the Insulation material and
secure it with two Plastic Bands. (for the
right pipings)
• If you want to connect an additional drain hose,
the end of the drain-outlet should keep distance
from the ground. (Do not dip it into water, and fix
it on the wall to avoid swinging in the wind.)
2. Tape the Pipings, drain hose and
Connecting Cable from bottom to top.
3. Form the pipings gathered by taping
along the exterior wall and fix it onto the
wall by saddle or equivalent.
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