– 18 –
9
Tips for saving energy and comfortable
performance
To save energy and perform comfortable cooling and heating
Air conditioner operating conditions
For proper performance, operate the air conditioner under the following temperature conditions:
If air conditioner is used outside of the above conditions, safety protection may operate.
• When the outside temperature exceeds 21 °C, it cannot operate heating. When the outside temperature is below
-10 °C, it cannot operate cooling. In these cases, “
” will be displayed on remote controller display section.
• The cooling performance may decline considerably when total operating capacity of cooling indoor units is less
than 4 HP while ambient temperature is below 0 °C.
Clean the air filter often
• A clogged air filter lowers the cooling/heating
performance.
Do not cool/heat too much
WARNING
Do not expose your body to cool air directly for a
long time and do not cool yourself excessively.
Doing so may result in deteriorated physical condition
and ill health.
• Cooling/Heating too much is bad for your health.
In particular, take care with handicapped/old people
and children.
Close windows and doors
• Do not let cooled/heated air escape from the room.
Cool/Heat the room evenly
• Adjust the air direction with the louver.
Exposing yourself to blowing air directly for a long time
is bad for your health.
Cooling operation
Outdoor temperature
: -10°C to 43°C (Dry-bulb temp.)
Room temperature
: 21°C to 32°C (Dry-bulb temp.), 15°C to 24°C (Wet-bulb temp.)
[CAUTION]
Room relative humidity: less than 80 %. If the air conditioner operates in excess of this
figure, the surface of the air conditioner may cause dewing.
Heating operation
Outdoor temperature
: -20°C to 15.5°C (Wet-bulb temp.)
Room temperature
: 15°C to 28°C (Dry-bulb temp.)
Check
periodically!
Do not cool
down too
much!
Close.
10
Maintenance
WARNING
For daily maintenance including Air Filter cleaning, make sure to ask the qualified service person
particularly following models as the maintenance requires high-place work;
Do not attempt it by yourself.
•
4-way cassette type
•
Compact 4-way cassette type
•
2-way cassette type
•
1-way cassette type
•
Ceiling type
•
Concealed duct standard type
•
Concealed duct high static type
•
Slim duct type
•
Air to Air Heat Exchanger with DX Coil Unit
CAUTION
Do not push buttons with wet hands.
Doing so may result in electric shock.
Cleaning the air filters
• When the filter indicator is displayed on the remote controller, clean the air filters.
• Ask qualified service person to clean the filters for the models listed in the warning on the top of this chapter.
• Clogged filters may lower the cooling and heating performance.
SET
TIME
TIMER SET
TEST
FILTER
RESET
TEMP.
CL
FAN
SAVE
SWING/FIX
VENT
MODE
ON / OFF
UNIT LOUVER
When the cleaning is complete, push the
“
FILTER RESET” button.
The “
FILTER” indicator
disappears.
35-EN
36-EN
