A HOT - GAS DEFROST SYSTEM FOR ENSURING LOW NOISE AND LOW VIBRATION OPERATION DURING DEFROST CONDITION AND METHOD THEROF

摘要

The present invention provides a hot gas defrost system and method for system for ensuring low noise and low vibration operation during defrost condition. According to the present invention, the compressors are switch off on sensing the defrost condition and the refrigerant pressure is equalized within the system by wide opening the expansion valve which is followed by opening of hot gas defrost valve and delayed switching ON of the compressors to carry out defrost operation. This ensures low noise and vibration in the refrigeration system during the defrost operation. Ref Fig. 1