Patent ID: 8225621
Filing Date: 2012-07-24
Classification: F04C,F25B,F25D

Abstract:
1. A control system for a refrigeration system having an electric motor driven compressor, said control system comprising: means for sensing whether said compressor is on; first means for determining whether compressor suction side pressure is at least equal to a predetermined pressure at the end of a first time interval following sensing that said compressor is on; second means for determining whether compressor suction side pressure is at least equal to said predetermined pressure at the end of a second time interval following a determination at the end of said first time interval that compressor suction side pressure is at least equal to said predetermined pressure; means for turning off said motor driven compressor for a third time interval in response to a determination at the end of said second time interval that compressor suction side pressure is at least equal to said predetermined pressure; and means for turning on said motor driven compressor at the end of said third time interval.