Maintenance; Air Filter - Hitachi RAS-25CNH1 Service Manual

MAINTENANCE

!
Before the cleaning, stop operation and disconnect the power supply.
1.

AIR FILTER

Clean the air filter, as it removes dust inside the room. In case the air filter is full of dust, the air flow
will decrease and the cooling capacity will be reduced. Further, noise may occur. Be sure to clean the
filter following the procedure below.
PROCEDURE
1
Open the front panel and remove the filter
Gently lift and remove the air cleansing and
deodorizing filters from the air filter frame.
2
Vacuum dust from the air filter and air
cleansing and deodorizing filters using
vacuum cleaner. If there is too much dust,
rinse under running tap water and gently
brush it with soft bristle brush. Allow filters to
dry in shade.
3
Re-insert the air cleansing and deodorizing
filters to the filter frame. Set the filter with
"FRONT" mark facing front, and slot them
into the original state.
After attaching the filter, push the front panel
at three arrow portions as shown in figure
and close it.
NOTE:
Air cleansing and deodorizing filter should be cleaned every month or sooner if noticeable loading
occurs. When used overtime, it may loose its deodorizing function. For maximum performance,
it is recommended to replace it every 3-6 months depending on application requirements.
CAUTION
!
Do not wash with hot water at more than 40°C. The filter may shrink.
When washing it, shake off moisture completely and dry it in the shade; do not expose it directly
to the sun. The filter may shrink.
Do not use detergent on the air cleansing and deodorizing filter as some detergent may deteriorate
the filter electrostatic performance.
CAUTION
– 25 –
REMOVING METHOD
Air cleansing and
deodorizing filter
INSTALLATION METHOD
Air filter