Patent ID: 8266920

Claim:
A method of controlling a refrigerant cycle, the refrigerant cycle comprising: a compressor, a condenser, an expansion valve, and an evaporator through which a refrigerant circulates in the stated order; and a control section which controls, based on a first instruction for setting temperature control, at least an operation of the compressor, and an interval and a driving amount for driving the expansion valve, the method executing the steps of: (a) obtaining a second instruction for setting whether or not a countermeasure against electrical noise is taken; (b) adopting, in a case where the second instruction indicates that the countermeasure against electrical noise is not taken, a first value as the interval based on the first instruction; (c) adopting, in a case where the second instruction indicates that the countermeasure against electrical noise is taken, a second value larger than the first value as the interval; and (d) transmitting, after the steps (b) and (c) are performed, the driving amount to the expansion valve at the interval.