Function of RA Indoor Unit SiBE121135_A
103 Function and Control
1.20 Other Functions
1.20.1 Hot-Start Function
In order to prevent the cold air blast that normally comes when heating operation is started, the
temperature of the indoor heat exchanger is detected, and the airflow is either stopped or made
very weak thereby carrying out comfortable heating of the room.
∗ The cold air blast is also prevented using similar control when the defrosting operation is
started or when the thermostat is turned ON.
1.20.2 Signal Receiving Sign
When the indoor unit receives a signal from the remote controller, the unit emits a signal
receiving sound.
1.20.3 Indoor Unit [ON/OFF] Button
An [ON/OFF] button is provided on the display of the unit.
Press the [ON/OFF] button once to start operation. Press once again to stop it.
The [ON/OFF] button is useful when the remote controller is missing or the battery has run
out.
The operation mode refers to the following table.
In the case of multi system operation, there are times when the unit does not activate with
the [ON/OFF] button.
Ex: Wall mounted type FTXS-J series
1.20.4 Titanium Apatite Photocatalytic Air-Purifying Filter
Wall Mounted Type, Floor Standing Type
This filter combines the Air-Purifying Filter and Titanium Apatite Photocatalytic Deodorizing
Filter as a single highly effective filter. The filter traps microscopic particles, decomposes odors
and even deactivates bacteria and viruses. It lasts for 3 years without replacement if washed
about once every 6 months.
1.20.5 Photocatalytic Deodorizing Filter
Floor / Ceiling Suspended Dual Type
The photocatalytic deodorizing filter powerfully decomposes odor of tobacco, pet, etc. The
deodorizing power is regenerated simply by being exposed to the sunshine. It is recommended
to dry the filter in the sun for about 6 hours (after vacuuming the filter) every 6 months.
1.20.6 Air-Purifying Filter
Floor / Ceiling Suspended Dual Type
The air-purifying filter collects tobacco smoke, pollen, etc. with electrostatic agency.
This filter includes a deodorizing active carbon filter that removes minute particles of odor.
Replace the air-purifying filter every 3 months.
1.20.7 Auto-restart Function
If a power failure (including one for just a moment) occurs during the operation, the operation
restarts automatically when the power is restored in the same condition as before the power failure.
Note: It takes 3 minutes to restart the operation because the 3-minute standby function is activated.
Operation mode Temperature setting Airflow rate
Cooling Only COOL 22°C Automatic
Heat Pump AUTO 25°C Automatic
(R8302)
[ON/OFF] button
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