Refrigeration circuit circulating a refrigerant and comprising in the direction of flow of the refrigerant: at least one compressor ; at least one heat rejecting heat exchanger ; at least one expansion device ; and at least one evaporator ; the refrigeration circuit further comprising: at least one heat recovery heat exchanger having a refrigeration circuit side and heat recovery system side and being configured for transferring heat between the refrigeration circuit side and the heat recovery system side , wherein the refrigeration circuit side is fluidly connected in parallel to the at least one heat rejecting heat exchanger for flowing circulating refrigerant through the refrigeration circuit side ; and at least one regulation valve which is configured for regulating the flow of refrigerant flowing through the refrigeration circuit side of the at least one heat recovery heat exchanger ; wherein the at least one regulation valve is switchable between an open position, in which the regulation valve is completely open; a closed position, in which the regulation valve is completely closed; and at least one intermediate position, in which the regulation valve is partially open; characterized in that said at least one regulation valve is arranged only downstream of the heat recovery heat exchanger . at least one compressor ; at least one heat rejecting heat exchanger ; at least one expansion device ; and at least one evaporator ; the refrigeration circuit further comprising: at least one heat recovery heat exchanger having a refrigeration circuit side and heat recovery system side and being configured for transferring heat between the refrigeration circuit side and the heat recovery system side , wherein the refrigeration circuit side is fluidly connected in parallel to the at least one heat rejecting heat exchanger for flowing circulating refrigerant through the refrigeration circuit side ; and at least one regulation valve which is configured for regulating the flow of refrigerant flowing through the refrigeration circuit side of the at least one heat recovery heat exchanger ; wherein the at least one regulation valve is switchable between an open position, in which the regulation valve is completely open; a closed position, in which the regulation valve is completely closed; and at least one intermediate position, in which the regulation valve is partially open; characterized in that said at least one regulation valve is arranged only downstream of the heat recovery heat exchanger . at least one heat recovery heat exchanger having a refrigeration circuit side and heat recovery system side and being configured for transferring heat between the refrigeration circuit side and the heat recovery system side , wherein the refrigeration circuit side is fluidly connected in parallel to the at least one heat rejecting heat exchanger for flowing circulating refrigerant through the refrigeration circuit side ; and at least one regulation valve which is configured for regulating the flow of refrigerant flowing through the refrigeration circuit side of the at least one heat recovery heat exchanger ; wherein the at least one regulation valve is switchable between an open position, in which the regulation valve is completely open; a closed position, in which the regulation valve is completely closed; and at least one intermediate position, in which the regulation valve is partially open; an open position, in which the regulation valve is completely open; a closed position, in which the regulation valve is completely closed; and at least one intermediate position, in which the regulation valve is partially open; characterized in that said at least one regulation valve is arranged only downstream of the heat recovery heat exchanger . <EOS>