Hitachi RAC-50WPA, Manual, Page: 10 / 15

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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
●
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
●
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.
●
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
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UM RAK-50PPARAC-50WPA_8 languages.indb 10 2012/11/22 下午 11:37:42