AUX ALCF-H18/NDR3HA, Service Manual

Page: 150 / 174

R32
High Efficiency DC Inverter LCAC
9. Insulation
◇
Use heat insulation material with good insulation performanCF to wrap the pipe.
Notes
Drainage pipe and connection piping should be wrapped by heat insulation material
respectively or there will be dew or leakage
During the high temperature working environment, our air conditioner is proved my dew
conditioner experiment. But if it keeps on working during the high humidity (the dew
temperature is more than23
℃
) environment which may lead to water leakage, in such
condition please use following additional insulation material:
◇
Glass fiber insulation material with the thickness between 10~20mm can be used.
◇
The part of indoor unit which get in touch with the back side of ceiling should pasted with
insulation material.
◇
Besides the previously more than 8mm thick insulation material, connection piping (both
gas pipe and liquid pipe), drainage pipe should be wrapped by additional 10~30 mm thick
insulation material.
To seal the hole on the wall.
◇
To prevent rainwater or other foreign bodies from entering the room and air-conditioner
after installing the tubing and drain pipe, the gap between wall hole and tubing, drain pipe
and electric wire should be sealed with mastic, sealant rubber or putty, or poor performance
or leakage will result