Hitachi RAS-18SH3 Instruction Manual page 30

FILTER CLEANING OPERATION
CAUTION
Do not put your fingers or a stick etc into the top part of the indoor unit during filter cleaning
operation.
It may result in injury or malfunction.
1
Automatic filter cleaning operation
• Automatically cleans the micro mesh stainless filter when the basic air-conditioning operation such as
cooling has ended. (Refer to page 31 for automatic filter cleaning operation)
• Automatic filter cleaning mode is set at the time of purchase.
Dust catcher
(1) Cleaning unit collects the dust
swept by the cleaning unit on
its forth movement.
(2) It turns over by the travelling
force of the cleaning unit which
is travelling back. At this time,
the dust collected by the dust
catcher is put into the dust
box.
(Filter Cleaning Unit Operation Check, page 10)
Forward movement
Sweeps and collects the dust on the
micro mesh stainless filter.
Backward movement
Once the filter cleaning operation has been
completed, the cleaning unit returns to the
position at which air conditioning operation
is not obstructed.
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