METHOD CONTROLLING HEATING OF HEAT-PUMP TYPE ARICONDITIONER

摘要

A heating control method of a heat pump type air conditioner is disclosed. First, whether the operation state is for cooling or heating is determined. When the operation state is for heating, the three-direction valve and the four-direction valve are controlled to allow refrigerant to flow in the heat exchanger. The time for valve control is delayed for a predetermined time. After the delay time, the compressor is driven. Thus, effect of heating in a heating operation during the winter time is improved.