Hitachi RPC-1.5FSN3 Installation And Operation Manual page 19

MAINTENANCE
10.1 daily maintenance
10.1.1 Cleaning air filter
Clean the air filter when the filter sign
1 Open the air inlet grille.
Press and slide the cover of the air inlet grille in the direction of
the arrow with fingers in the holes on the cover.
2 remove the air filter.
Push the air filter toward arrow direction to unhook it from the air
inlet grille, and remove the air filter.
Air filter
Lift up the air filter.
3 Clean the air filter.
• Vacuum the dust by a cleaner, or wash the air filter by water
or neutral detergent.
• Dry the air filter in the shade (it is to prevent the air filter from
degradation by ultraviolet).
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• Do not use hot water more than 50ºC. The air filter may be deformed
by heat.
• Do not dry the air filter by an open fire, a dryer or a heater. The air
filter may be deformed.
4 Attach the air filter.
After the air filter is dried, correctly attach it with "FrONT"
indication frontward to the indoor unit.
17 PMML0254A rev.4 - 12/2018
is turned ON.
FLTR
Holes
(2 or 3 portions)
Air inlet grille
Upper side
Catch
Lower side
Catch
5 Close the air inlet grille.
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Be sure to attach the air filter. If the indoor unit is operated without the air
filter, it may cause malfunction of the indoor unit.
6 reset the filter sign.
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If the accumulated time of filter cleaning is not got to setting time, the
indication " " is turned ON and "Setting disabled" will be displayed.
• Press " " (menu).
Select "Filter sign reset" from the menu and press "OK". The
confirmation screen will be displayed.
• Select "yes" by pressing "◄" or "►" and press "OK". The
indication of "FLTr" will be turned OFF and the screen will
return to the normal mode.
10.1.2 Removing, attaching and cleaning air
inlet grille
Wipe the air panel by a soft cloth which is soaked in lukewarm
water and squeezed.
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n o t e
Use a soft cloth to clean the air inlet grille and the air panel. If bengine,
thinner or detergent (with surfactant) is used to clean, the resin part may
be changed color or deformed. In addition, pay attention that the parts
around the air outlet (louver, guide, etc.) may be damaged if an excessive
force is applied.
The air inlet grille can be removed and cleaned.
1 Open the air inlet grille.
Press and slide the cover of the air inlet grille in the direction
of the arrow with fingers in the holes on the cover.
Holes
(2 or 3 portions)
Air inlet grille