Heat Insulation - Panasonic CS-ME9PB4EA Service Manual

11.6 HEAT INSULATION

Be sure to perform heat insulation on the drain, liquid and gas piping. Imperfection in heat insulation work leads to water
leakage.
1 Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120°C).
2 Precautions in high humidity circumstance.
This air conditioner has been tested according to the "JIS Standard Conditions with Mist" and have been
confirmed that there are no faults. However, if it is operated for a long time in high humid atmosphere (dew
point temperature: more than 23°C), 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 20 mm.
o
Stick glass wool on all air conditioners that are located in ceiling atmosphere.
o
In addition to the normal heat insulation (thickness: more than 8 mm) for refrigerant piping (gas piping:
o
thick piping) and drain piping, add a further of 10 mm to 30 mm thickness material.
Wall seal
When the outdoor unit is installed on a higher
position than the indoor unit, install the trap so as
not to instill rain water into the wall by transmitting
in piping.
Stuff the space among piping, the electric wire,
and the drain hose with "Putty" and seal the
penetration wall hole.
Make sure that rain water do not instill into the
wall.
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