Patent ID: 7240502
Filing Date: 2007-07-10
Classification: F25B,Y02B

Abstract:
1. A method for controlling operations of an air-conditioner comprising: a step in which when an operation load of an air-conditioner increases, if an outputted compressing capacity of the air-conditioner is smaller than a compressing capacity corresponding to the operation load and an operation frequency of the first compressor is a maximum frequency of the first compressor, the operation frequency of the first compressor is reduced and then when the operation frequency of the first compressor is higher than the minimum frequency of the first compressor, a second compressor is operated; and a step in which when the operation load is reduced, if the outputted compressing capacity of the air-conditioner is greater than the compressing capacity corresponding to the operation load and the operation frequency of the first compressor is a minimum frequency of the first compressor, the operation frequency of the first compressor is increased and then when the operation frequency of the first compressor is lower than the maximum frequency of the first compressor, the second compressor is stopped.