Patent ID: 7836711
Filing Date: 2010-11-23
Classification: F24F,F25B,F25D

Abstract:
1. An air conditioner comprising a refrigerant circuit ( 20 ) wherein the refrigerant circuit ( 20 ) includes: a compressor ( 41 ); a utilization-side heat exchanger ( 53 ); and an expansion valve ( 52 ) for controlling the amount of refrigerant flowing into the utilization-side heat exchanger ( 53 ), to thereby perform a refrigeration cycle, and wherein the air conditioner performs a cooling operation for room cooling while during the cooling operation the air conditioner is able to execute an ice melting operation for melting of ice adhering to the utilization-side heat exchanger ( 53 ) by closing the expansion valve ( 52 ) to thereby feed air to the utilization-side heat exchanger ( 53 ), the air conditioner comprising: high-low pressure difference detection means ( temperature measurement means ( control means ( wherein, based on the value of measurement taken by the high-low pressure difference detection means (