Patent ID: 11959676
Assignee: DANFOSS A/S
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 13:
14. A method for controlling a vapour compression system comprising a compressor unit comprising one or more compressors, a heat rejecting heat exchanger, a receiver, an expansion device and an evaporator arranged in a refrigerant path, the expansion device being arranged to control a supply of refrigerant to the evaporator, the method comprising the steps of:
obtaining a pressure value indicating a pressure prevailing inside the receiver,
comparing the obtained pressure value to a first threshold pressure value, and
in the case that the obtained pressure value is below the first threshold pressure value, controlling the compressor(s) of the compressor unit in order to reduce a suction pressure of the vapour compression system;, wherein the step of controlling the compressor(s) of the compressor unit comprises the steps of:
reducing a suction pressure setpoint value from an initial suction pressure setpoint value, P0,set, to a reduced suction pressure setpoint value, P0,red, and
controlling the compressor(s) of the compressor unit based on the reduced suction pressure setpoint value, P0,red.