Servicing and Maintenance
Indoor Unit
• Air Filter
The lter must be cleaned regularly and the frequency of cleaning is to be determined by the degree of
pollution of the environment of application. When washing the lter, rst tap it gently to remove larger particle,
and then rinse the lter in detergent and warm water. The lter must be dried before it is used. The lter is
recommended to be installed before the air grille or the indoor coil.
• Motor
It is not necessary to lubricate the motor for servicing and maintenance.
• Heat Exchanger
After in use for a while, the surface of the coil may collect dust, dirt or other undesirable substances. It is
recommended to clean the aluminum ns of the coil using a nylon brush or vacuum cleaner. If compressed
air is available, it can be used to clean the coil by direct blowing.
However, care must be taken not to damage the ns.
• Drain Pipe
Check the drain pipe regularly to prevent blockages by alien substances.
Outdoor Unit
Under normal operating conditions, outdoor unit should be checked quarterly and the coil surface should
be washed. If the outdoor unit is installed at location which is oily, smoky and dusty, regular service should be
done by a technician to make sure that the heat exchanger is always in optimum condition.
Warning
Do not use oxygen, acetylene, poisonous gas or any other gas that will cause explosion under high
temperatures and pressure for leak checking. Instead, use nitrogen or R22 for air leakage test.
Sakura Air-cooled Split Ducted Air Conditioner
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