Indoor Unit (RA Models) SiEN18-622
130 Function
7.12 Other Functions
7.12.1 Hot Start Function
Heat Pump Only
In order to prevent the cold air blast that normally comes when heating is started, the
temperature of the heat exchanger of the indoor unit is detected, and either the air flow is
stopped or is made very weak thereby carrying out comfortable heating of the room.
*The cold air blast is also prevented using a similar control when the defrosting operation is
started or when the thermostat gets turned ON.
7.12.2 Signal Receiving Sign
When the indoor unit receives a signal from the remote control, the unit emits a signal receiving
sound.
7.12.3 ON/OFF Button on Indoor Unit
An ON/OFF button is provided on the front panel of the unit. Use this button when the remote
control is missing or if its battery has run out.
Every press of the button switches from ON to OFF or from OFF to ON.
In case of 20-35 Class
Push this button once to start operation. Push once again to stop it.
This button is useful when the remote control is missing.
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
this button.
7.12.4 Titanium Apatite Photocatalytic Air-Purifying Filter
This filter combines the Air Purifying Filter and Titanium Apatite Photocatalytic Deodorizing
Filter in a single highly effective unit. The filter traps microscopic particles, decompose odours
and even deactivates bacteria and viruses. It lasts for three years without replacement if
washed about once every six months.
G
limit free
WRB5[W5W]
WRB4[W4W]
WRB3[W3W]
WRB2[W2]
WRB1[W1]
W0
F
E
D
C
B
A
G
F
E
D
C
B
A
free or WRB5
free or WRB5 or WRB4
WRB2
WRB1
up
down
[36°C]
[36°C]
[34°C]
[33°C]
[25°C]
[20°C]
[8°C]
[3°C]
[Reference]
(R6361)
Heat exchanger
temperature zone
(R4269)
ON/OFF
ON/OFF button
Mode Temperature setting Air flow rate
Cooling Only COOL 22°C AUTO
Heat Pump AUTO 25°C AUTO
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