AUX AL-H12/4R1D, Service Manual

Page: 108 / 157

AUX-Light CAC 50Hz R410A Trouble shooting
108
Heat insulation package of piping
◇
Use heat insulation material with good insulation performanCF to wrap the pipe.
Incorrect Correct
Gas pipe and liquid pipe should
not be put together to insulate
Insulate the gas pipe
(cooling only)
Insulate the gas pipe and
liquid 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°C)
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
◇
If the outdoor unit is higher than indoor unit, tubing should be bent to ensure that the lowest point of the
tubing is lower than the wall hole to prevent rainwater entering the room or air-conditioner along the
piping system.