SiENBE04-512A Main Functions
Function and Control 47
1.10 Other Functions
1.10.1 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.
1.10.2 Signal Receiving Sign
When the indoor unit receives a signal from the remote control, the unit emits a signal receiving
sound.
1.10.3 ON/OFF Button on Indoor Unit
An ON/OFF switch is provided on the front panel of the unit. Use this switch when the remote
control is missing or if its battery has run out.
Every press of the switch changes from Operation to Stop or from Stop to Operation
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.
1.10.4 Air Purifying Filter with Photocatalytic Deodorizing Function
This filter incorporates the benefits the Air Purifying Filter and Photocatalytic Deodorizing Filter
in a single unit. Combining the two filters in this way increases the active surface area of the
new filter. This larger surface area allows the filter to effectively trap microscopic particles,
decompose odours and deactivate bacteria and viruses even for the high volume of air required
to air-condition large living rooms. The filter can be used for approximately 3 years if periodic
maintenance is performed.
1.10.5 Mold Proof Air Filter
The air filter net is impregnated with a safe, odourless mould preventative to make the filter
virtually immune to mould.
1.10.6 Self-Diagnosis Digital Display
The microcomputer continuously monitors main operating conditions of the indoor unit, outdoor
unit and the entire system. When an abnormality occur, the LCD remote control displays error
code. These indications allow prompt maintenance operations.
1.10.7 Auto-restart Function
Even if a power failure (including one for just a moment) occurs during the operation, the
operation restarts in the condition before power failure automatically when power is restored.
(Note) It takes 3 minutes to restart the operation because the 3-minutes standby function is
activated.
ON/OFF
button
(R2948)
Mode Temperature setting Air flow rate
Cooling Only COOL 22ºC AUTO
Heat Pump AUTO 25ºC AUTO
SiENBE04-512A.book Page 47 Friday, October 5, 2007 1:49 PM
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