SiUS04-702 Main FunctionsFunction and Control 311.11 Other Functions1.11.1 Hot Start FunctionHeat Pump OnlyIn order to prevent the cold air blast that normally comes when heating is started, the temperatureof the heat exchanger of the indoor unit is detected, and either the air flow is stopped or is madevery 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 startedor 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 signal receivingsound.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 with thisbutton.Forced operation mode will be set by pressing the ON/OFF button for between 5 to 9 sec. while theunit is not operating.Note: When the ON/OFF button is pressed for 10 sec. or more, the operation will be stopped.See page 46 for the detail of "Forced Operation Mode".ON / OFF button(R2824)Mode Temperature setting Air flow rateHeat Pump AUTO 77ºF AUTO
