Method for Operating a Temperature-Control Device of a Motor Vehicle, and Temperature-Control Device for a Motor Vehicle

A method for operating a temperature-control device having a compressor line flowing a total mass flow of refrigerant and having a refrigerant compressor by which the refrigerant is conveyed and compressed, a condenser line branches off from the compressor line and flowing a first partial mass flow of the refrigerant, and having a first expansion valve to set and expand the first partial mass flow, and a condenser to condense the first partial mass flow arranged in the condenser line upstream of the first expansion valve. The refrigerant circuit includes a bypass line which is connected parallel to the condenser line and which branches off from the compressor line and through which a second partial mass flow of the refrigerant thus flows.