Hitachi RAK-18QXA, Manual

Page: 10 / 14

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MAINTENANCE
Cleaning and maintenance must be carried out when Þ lter lamp lights. Before cleaning, stop operation and
switch off the power supply.
1. PRE-FILTER
Clean the pre- Þ lter, as it removes dust inside the room. In case the pre- Þ lter is full of dust, the air ß ow
will decrease and the cooling capacity will be reduced. Further, noise may occur. Be sure to clean the
pre-
Þ lter following the procedure below.
! CAUTION
1
Open the front panel and remove the pre- Þ lter
O
Gently lift and remove the air purifying Þ lters
from the air purifying Þ lter frame.
2
Vacuum dust from the pre- Þ lter and air purifying
Þ
lter using vacuum cleaner. If there is too much
dust, rinse under running tap water and gently
brush it with soft bristle brush. Allow
Þ lters to dry
in shade.
3
O
Re-insert the air purifying
Þ
lter to the
Þ
lter frame.
Set the pre- Þ lter with “FRONT” mark facing front,
and slot them into the original state.
O
After attaching the pre- Þ lters, push the front
panel at three arrow portions as shown in
Þ gure and close it.
!
CAUTION
Do not wash with hot water at more than 40°C. The pre- Þ lter 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- Þ lter may shrink.
PROCEDURE