A method for controlling a vapour compression system at a reduced suction pressure

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.