| 摘要 |
PROBLEM TO BE SOLVED: To prevent drying of the heat-exchanger of an indoor unit by a method wherein the opening of a motor-drive expansion valve situated in a refrigerating cycle is properly controlled. SOLUTION: In an air-conditioner, when a compressor is operated, an operation degree D-dis is computed from a discharge temperature T-dis and a preceding target discharge temperature TGT-dism. When the absolute value of the computed operation degree D-dis attains a given range, a dry degree D-sh is computed from a charge temperature T-sh and a coil temperature T-coil (at steps 200-204). Thereafter, an operation amount USH is set from the computed operation degree D-dis and the dry degree D-sh to determine a correction amount CSH (at steps 206-214). Based on a target discharge temperature Tgt-dis corrected by a discharge temperature Tgt-dis computed by the correction amount CSH, the opening of the motor-drive expansion valve is controlled. |
