SiBE18-821_C RA Indoor Unit
Operation Manual 203
To change the airflow rate setting
5. Press “FAN setting button”.
NOTE
DRY mode AUTO or COOL or HEAT or FAN mode
The airflow rate setting is not variable.
Five levels of airflow rate setting from “ ” to “ ”
plus “ ” “ ” are available.
When the airflow is set to “ ”, the noise from the indoor unit will become quieter.
Use this when making the noise quieter.
Note on HEAT operation
•
Since this air conditioner heats the room by taking heat from outdoor air to indoors, the heating
capacity becomes smaller in lower outdoor temperatures. If the heating effect is insufficient, it
is recommended to use another heating appliance in combination with the air conditioner.
• The heat pump system heats the room by circulating hot air around all parts of the room.
After the start of heating operation, it takes some time before the room gets warmer.
• In heating operation, frost may occur on the outdoor unit and lower the heating capacity. In
that case, the system switches into defrosting operation to take away the frost.
• During defrosting operation, hot air does not flow out of indoor unit.
• A pinging sound may be heard during defrosting operation, which, however does not mean
that the air conditioner has failures.
Note on COOL operation
• This air conditioner cools the room by blowing the hot air in the room outside, so if the
outside temperature is high, the performance of the air conditioner drops.
Note on DRY operation
• The computer chip works to rid the room of humidity while maintaining the temperature as
much as possible. It automatically controls temperature and airflow rate, so manual
adjustment of these functions is unavailable.
Note on AUTO operation
• In AUTO operation, the system selects a temperature setting and an appropriate operation
mode (COOL or HEAT) based on the room temperature at the start of the operation.
• The system automatically reselects setting at a regular interval to bring the room
temperature to user-setting level.
• If you do not like AUTO operation, manually change the set temperature.
Note on airflow rate setting
• At smaller airflow rates, the cooling (heating) effect is also smaller.
• Indoor unit quiet operation
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