Patent ID: 6684650
Filing Date: 2004-02-03
Classification: F25B,F25D

Abstract:
A method for executing a hot gas heating cycle in a mobile refrigeration unit, comprising the steps of:(a) opening a hot gas stepper valve followed by closing a condenser valve between a condenser and a receiver; (b) monitoring a discharge pressure in said unit; (c) comparing said discharge pressure to a first predetermined pressure; (d) closing, after step (c), said hot gas stepper valve if said hot gas heating cycle is unfinished and said discharge pressure is less than said fist predetermined pressure; (e) opening, after step (c), said hot gas stepper valve if said discharge pressure is greater than or equal to said first predetermined pressure; and (f) opening, after step (c), said condenser valve followed by closing said hot gas stepper valve if said hot gas heating cycle is finished.