| 摘要 |
PURPOSE:To permit the speedy warming and facilitate operation and carry out clean and safe warming by heating the ventilating air by a ceramic heater separately from a heater core, when an engine is at low temperature. CONSTITUTION:When the warming of a car compartment is started by operating an air conditioner switch 26, a fan is driven, and the inside and outside air is blown into the car compartment through an air ventilating passage from each taking-in port. At this time, a signal is inputted into a control unit 14 from a cooling water temperature sensor 9. and a control signal is outputted into an alternator 13 from the control unit 14. When the cooling water temperature lowers below a set value, a turning-ON signal of a ceramic heater 10 is outputted into the alternator 13. When the cooling water temperature is over a set value, a turning-OFF signal of the ceramic heater 10 is outputted into the alternator 13. Therefore, the speedy warming in case of low temperature can be carried out. |
