Main Functions Si04-306E56 Function and Control1.11 Other Functions1.11.1 Hot Start FunctionHeat Pump OnlyIn order to prevent the cold air blast that normally comes when heating is started, thetemperature of the heat exchanger of the indoor unit is detected, and either the airflow isstopped 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 isstarted or when the thermostat gets turned ON.1.11.2 Signal Receiving SignWhen the indoor unit receives a signal from the remote controller, the unit emits a signalreceiving sound.1.11.3 ON/OFF Button on Indoor UnitAn ON/OFF switch is provided on the front panel of the unit. Use this switch when the remotecontroller 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 controller 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 withthis button.Forced operation mode will be set by pressing the ON/OFF button for between 5 to 9 sec. whilethe unit is not operating.Note: When the ON/OFF button is pressed for 10 sec. or more, the operation will be stopped. See page 73 for the detail of "Forced Operation Mode".1.11.4 Air Purifying Filter with Photocatalytic Deodorizing FunctionThis filter incorporates the benefits the Air Purifying Filter and Photocatalytic Deodorizing Filterin a single unit. Combining the two filters in this way increases the active surface area of thenew 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 requiredto air-condition large living rooms. The filter can be used for approximately 3 years if periodicmaintenance is performed.1.11.5 Air FilterThe filter net is treated with mold resisting agent TBZ (harmless, colorless, and odorless). Dueto this treatment, the amount of mold growth is much smaller than that of normal filters.ON / OFF button(R2824)Mode Temperature setting Airflow rateCooling Only COOL 22ºC AUTOHeat Pump AUTO 25ºC AUTO
