This specific model is a non-automatic version

bolt-on expansion valve is designed to optimize superheat by precisely regulating refrigerant flow into the evaporator coil

Operating with a 208-240V AC coil

offering the added functionality of a multi-speed fan selector that the previous model lacked

this component efficiently converts electrical energy into the mechanical force required to actuate ASCO solenoid valves

Mueller Industries A17938 Check Valve 30067439-890 This specific model is aThe Mueller Industries A17938 Check Valve is a veteran grade 3 4 Magnetic Check Valve engineered for high performance backflow prevention in commercial refrigeration and HVAC systems. Unlike standard spring loaded designs, this CheckMaster magnetic check valve utilizes a magnetically operated poppet that eliminates the mechanical fatigue often associated with traditional springs. This design ensures a more reliable unidirectional flow with a pressure