COMPRESSOR OIL RECOVERY METHOD OF REFRIGERATOR

摘要

PURPOSE: A compressor oil recovery method for a refrigerator is provided to collect the oil of refrigerant pipes and to balance the pressure of storage chambers. CONSTITUTION: A compressor oil recovery method for a refrigerator is as follows: If one of multiple storage chambers are turned off(S100), whether or not to satisfy oil recovery conditions is determined(S110). If satisfying the oil recovery conditions(S120), whether or not to satisfy compressor operating conditions is determined(S130). If satisfying the compressor operating conditions, valves in storage chambers are simultaneously opened during the operation of a compressor. [Reference numerals] (AA) Start; (BB) End; (S100) One of storage chambers is turned off?; (S110) Exterior air temperature <= 15°C (S120) 72 hours has passed?; (S130) Compressor operating conditions are satisfied?; (S140) Simultaneously opening valves of storage chambers which are turned on/off; (S150) Predetermined time has passed?; (S160) Closing the storage chambers which are turned off