26
Ceiling Cassette Air Conditioner
Installation
6. Heat Insulation and pipings
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.
Indoor unit
Thermal insulator
(accessory)
Fastening band
(accessory)
Refrigerant piping
HEAT INSULATION
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 be kept at a
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 to the wall by saddle or
equivalent.
In case of the Outdoor unit being installed
below position of the Indoor unit.
FORM THE PIPINGS
Trap is required to prevent water from entering
into electrical parts.
Seal a small opening
around the pipings
with gum type sealer.
Taping
Drain hose
Pipings
Connecting
cable
Plastic Band
Power supply
cord
