Method for controlling a refrigerating cycle apparatus

摘要

A refrigerating cycle apparatus which is constituted by connecting an inverter driven compressor (1) with controllable speed of rotation, a four-way valve (2), an indoor heat exchanger (3), a pressure reducing device (4) and an outdoor heat exchanger (5) by refrigerant pipes (1a, 8a, 8b), comprising: a defrosting condition detector (10, 13) for detecting a frosting state of the outdoor heat exchanger in a heating operation; a defrosting operation controller (11, 13) for carrying out a defrosting operation based on a detection signal from the defrosting condition detector; and at least one of a minimum operable frequency controller (13) for controlling a minimum operable frequency for the compressor on completion of the defrosting operation and a starting speed controller (13) for controlling a starting speed for the compressor on completion of the defrosting operation based on a detection signal from the defrosting condition detector. <IMAGE>