The compressor of control methodological null 2 step compressed type of the refrigerating cycle device, the heating pump

摘要

PROBLEM TO BE SOLVED: To properly adjust a heating capacity even when a second electric expansion valve has more than a specific opening in a split cycle operation (single expansion intermediate cooling).;SOLUTION: When a refrigerant discharge temperature on a high pressure side of a compressor 1 detected by a temperature detecting sensor 46 is within a first prescribed temperature range, a microcomputer 40 controls an opening of a first electric expansion valve 6 to be kept in a constant state. A timer 47 times a state in which the opening of the first electric expansion valve 6 is kept in the specific state, and the detection temperature of the temperature detecting sensor 46 is within the first prescribed temperature range. When the timer 47 continuously counts the prescribed time, the opening of the second electric expansion valve 11 is kept in the specific state, when the detection temperature of the temperature detecting sensor 46 is within a second prescribed temperature range lower than the first prescribed temperature range.;COPYRIGHT: (C)2008,JPO&INPIT