HEAT PUMP AIR CONDITIONER AND CONTROL METHOD THEREOF FOR HEATING OPERATION

摘要

PURPOSE: A heat pump air conditioner and control method thereof for heating operation are provided to appropriately control blast capacity by temperature of outside air. CONSTITUTION: An air conditioner includes an outside air temperature sensor(18); a pipeline temperature sensor(19); and a control circuit(20). The outside air temperature sensor detects temperature of air of outside where an outdoor hit exchanger(16) is placed. The pipeline temperature sensor detects temperature of a pipeline of an indoor heat exchanger(13). The control circuit comprises a control part and a driving part to adjust blast capacity correspondingly with change of the temperature of the pipeline when the temperature of the outside air is lower than a preset value. The control part calculates and processes indoor fan driving signal based on the temperature of the pipeline. The driving part drives an indoor fan(14) varying rotation velocity of the indoor fan according to the driving signal processed in the control part.