REFRIGERANT HEATING TYPE AIR-CONDITIONER

摘要

PURPOSE:To optimize the ignition/extinguishment control sequence of two refrigerant heaters by allowing respective combustion fan motors for the two refrigerant heaters provided in a freezing cycle to have a power supply for control in common. CONSTITUTION:In the case where, during the combustion operation of one refrigerant heater 1a, the other refrigerant heater 1b is additionally ignited, the number of revolutions of a combustion fan motor 29a for the refrigerant heater 1a in combustion operation and the opening degree of a gas proportioning valve 31a are put into a state at the time of ignition to keep step with the refrigerant heater 1b to be additionally ignited.