Hitachi RCIM-2.0FSN2 Installation Manual page 17

8 MAINTENANCE
Do not operate the system without the air filter to protect
the indoor unit heat exchanger against being clogged.
Turn OFF the main power switch before taking out the
filter. (The previous operation mode may appear.)
8.1. TAKE OUT THE FILTER
4-Way Cassette Type
1. Open the air inlet grille after pushing the two knobs
toward the arrow mark as shown in the figure below.
Air Inlet Grille
8.2. CLEAN THE FILTER
Clean the air filter according to the following steps:
1. Use a vacuum cleaner or let water flow onto the air filter
for removing the dirt from the air filter.
8.3. RESET OF FILTER INDICATION
After cleaning the air filter, press the "RESET" button. The
FILTER indication will disappear and the next filter cleaning
time is set.
The indication, "FILTER" is shown on the display of the
remote control switch. Take out the air filter according to
the indicated steps for each unit.
2. Take out the air filter from the air inlet grille by
supporting the air grille and lifting the air filter after
detaching the filter from the hinges.
Knob
Hinges
Holder
Stopper
CAUTION:
Do not use hot water higher than approximately 40°C
2. Dry the air filter in the shade after shaking off moisture.
3. Do not use cleaner or other chemicals.
8
MAINTENANCE
11
Air Filter
Air Inlet Grille