Hitachi S Series - Maintenance; Pre-Filter Cleaning and Maintenance

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MAINTENANCE
Cleaning and maintenance must be carried out only by qualifi ed service personnel.
Before cleaning, stop operation and switch off the power supply.
CAUTION
CAUTION
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1. PRE-FILTER
Clean the Pre-fi lter, as it removes dust inside the room. In case the Pre-fi lter is full of dust, the air fl ow
will decrease and the cooling capacity will be reduced. Further, noise may occur. Be sure to clean the
Pre-fi lter following the procedure below.
Open the front panel and remove the Pre-fi lter
● Gently lift and remove the air purifying fi lters
from the air purifying fi lter frame.
Vacuum dust from the Pre-fi lter and air purifying
fi lter using vacuum cleaner. If there is too much
dust, rinse under running tap water and gently
brush it with soft bristle brush. Allow fi lters to dry
in shade.
● Re-insert the air purifying fi lter to the fi lter frame.
Set the Pre-fi lter with “FRONT” mark facing front,
and slot them into the original state.
● After attaching the Pre-fi lters, push the front
panel at three arrow portions as shown in
fi gure and close it.
● Do not operate the air conditioner without Pre-fi lter. Dust may enter the air conditioner and fault may
occur.
NOTE:
● Air purifying fi lter should be cleaned every month or sooner if noticeable loading occurs. When
used overtime, it may lose its deodorizing function. For maximum performance, it is recommended
to replace it every 1 year depending on application requirements.
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