A refrigeration system comprising: a compressor having an outlet and an inlet, a condenser operably coupled to the compressor outlet and configured to receive refrigerant fluid from the compressor; a plurality of evaporators (49, 50, 51) each operating and coupled in parallel to the condenser and each having an inlet pressure side and an outlet pressure side and each receiving refrigerant fluid from the condenser via the inlet pressure side and each outputting refrigerant fluid at different evaporator outlet pressures; and refrigerant fluid conduits (42, 57, 58, 59, 60, 61) operably coupling the compressor, the condenser and the plurality of evaporators (49, 50, 51) thereby forming a refrigerant fluid circuit for the transmission of the refrigerant fluid between the compressor, the condenser, and the plurality of evaporators (49, 50, 51); and a valve operably coupled to the outlet pressure side of each of the plurality of evaporators (49, 50, 51) using the refrigerant fluid conduits (57, 58, 59), wherein the valve provides an inlet pressure of refrigerant fluid to the compressor at a pressure between a highest evaporator outlet pressure and a lowest evaporator outlet pressure of the different outlet pressures of the plurality of evaporators (49, 50, 51); characterized in that: the valve is a pulse width modulation switch valve configured to switch between any one evaporator of the plurality of evaporators (49, 50, 51) when providing an inlet pressure of refrigerant fluid to the compressor. a compressor having an outlet and an inlet, a condenser operably coupled to the compressor outlet and configured to receive refrigerant fluid from the compressor; a plurality of evaporators (49, 50, 51) each operating and coupled in parallel to the condenser and each having an inlet pressure side and an outlet pressure side and each receiving refrigerant fluid from the condenser via the inlet pressure side and each outputting refrigerant fluid at different evaporator outlet pressures; and refrigerant fluid conduits (42, 57, 58, 59, 60, 61) operably coupling the compressor, the condenser and the plurality of evaporators (49, 50, 51) thereby forming a refrigerant fluid circuit for the transmission of the refrigerant fluid between the compressor, the condenser, and the plurality of evaporators (49, 50, 51); and a valve operably coupled to the outlet pressure side of each of the plurality of evaporators (49, 50, 51) using the refrigerant fluid conduits (57, 58, 59), wherein the valve provides an inlet pressure of refrigerant fluid to the compressor at a pressure between a highest evaporator outlet pressure and a lowest evaporator outlet pressure of the different outlet pressures of the plurality of evaporators (49, 50, 51); characterized in that: the valve is a pulse width modulation switch valve configured to switch between any one evaporator of the plurality of evaporators (49, 50, 51) when providing an inlet pressure of refrigerant fluid to the compressor. the valve is a pulse width modulation switch valve configured to switch between any one evaporator of the plurality of evaporators (49, 50, 51) when providing an inlet pressure of refrigerant fluid to the compressor.