Hitachi RAC-F18CF, Manual

Page: 16 / 62

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MAINTENANCE
Cleaning and maintenance must be carried out when fi lter lamp lights. Before cleaning, stop
operation and switch off the power supply.
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.
! CAUTION
1
Open the front panel and remove the pre- fi lter.
2
Vacuum dust from the pre- 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.
3
●
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.
! CAUTION
● Do not wash with hot water at more than 40°C. The pre- fi lters may shrink.
● When washing it, shake off moisture completely and dry it in the shade; do not expose it directly
to the sun. The pre-
fi lters may shrink.
● Do not use detergent on the pre- fi lter as some detergent may deteriorate the fi lter electrostatic
performance.
(EN3) RAS-F18CF (13-20) 16 (EN3) RAS-F18CF (13-20) 16 3/14/15 9:26 AM 3/14/15 9:26 AM