Lennox 15W12 Expansion Valve 319847-401 Clean the motor shaft thoroughly

Clean the motor shaft thoroughly and ensure the set screw is seated on the flat portion of the shaft

this plug-in transformer eliminates the need for complex hardwiring

Best non-spring return actuator for commercial HVAC

Bus Communication: Utilizes the AK2 Local Bus to ensure high-speed data transmission between the module and frontend managers

Field technicians must verify the manifold pressure and shank length to ensure a proper fit within the combustion chamber

Lennox 15W12 Expansion Valve 319847-401 Clean the motor shaft thoroughlyThe Lennox 15W12 Indoor Expansion Valve is a critical OEM component engineered for high precision refrigerant metering in residential and light commercial R410A HVAC systems. As a thermal expansion valve (TXV), it utilizes a 1 2 inch outlet and 3 8 inch inlet connection to maintain the precise superheat required for optimal evaporator performance. This replacement expansion valve is designed to replace part number 100254 06, directly addressing issues