Daikin FTY25GXV1, Service Manual

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Functions SiBE01-829
22 Functions and Control
1.8 Other Functions
1.8.1 Hot Start Function
In order to prevent the cold draft that normally comes when heating operation starts, the
temperature of the indoor heat exchanger is detected, and either the airflow is stopped or is
made very weak thereby carrying out comfortable heating of the room.
*The cold draft is also prevented using a similar control when the thermostat turns OFF.
1.8.2 Signal Receiving Sign
When the indoor unit receives a signal from the remote controller, the unit emits a signal
receiving sound.
1.8.3 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
controller is missing or if its battery has run out.
Push this switch once to start operation. Push once again to stop it.
The operation mode refers to the following table.
1.8.4 Air-Purifying Filter
The Air purifying filter with bacteriostatic, virustatic functions can be renewed by washing it with
water once every 6 months. We recommend replacing it once every 3 years.
1.8.5 Air Filter
The filter net is treated with mold resisting agent TBZ (harmless, colorless, and odorless). Due
to this treatment, the amount of mold growth is much smaller than that of normal filters.
1.8.6 Self-Diagnosis Digital Display
The microcomputer continuously monitors operating conditions of the indoor unit, the outdoor
unit, and the entire system. When an abnormality occurs, the remote controller displays error
code on the LCD. These indications allow prompt maintenance operations.
1.8.7 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.
ON/OFF
ON/OFF button
(R8512)
Mode Temperature setting Airflow rate
AUTO 25°C AUTO