Maintenance - Hitachi RAC-70YHA4 Manual

MAINTENANCE

CAUTION
!
Cleaning and maintenance must be carried out only by qualifi ed service personnel. Before cleaning,
stop operation and switch off the power supply.
1. PRE-FILTER
Please clean the Pre-fi lter once about every two weeks. By doing so, the power rates are saved. In
case the air 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.
1
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.
2
Vacuum dust from the Pre-fi lter and air purifying
fi lter using vacuum cleaner. If there is too much
dust, wipe the fi lter with wet clotch or sponge.
Allow fi lters to dry in shade.
3
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.
NOTE:
Air purifying fi lter 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 1 year depending on application requirements.
! CAUTION
Do not operate the air conditioner without Pre-fi lter. Dust may enter the air conditioner and fault
●
may occur.
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