Lennox 66J78 Limit Switch Els PW 17895 Contractors should verify the vacuum

Contractors should verify the vacuum hose integrity and millivolt circuit continuity when installing this factory-authorized sensing device to restore system efficiency and safety compliance

This HVAC expansion valve body is a serviceable TXV spare part

High Load Capacity: Capable of switching 20A resistive loads or 2 HP motors

serving as a direct replacement for existing Erie zone valve applications in fan coils

Its foot mount design ensures a stable

Lennox 66J78 Limit Switch Els PW 17895 Contractors should verify the vacuumExperienced HVAC contractors recognize the Lennox 66J78 Limit Switch as a critical safety component for maintaining furnace integrity and preventing heat exchanger damage. This OEM Lennox replacement part is a 36T series disc style control designed for High Limit or Secondary Rollout applications. It features a Normally Closed (NC) circuit that opens on temperature rise to interrupt the heating cycle if internal temperatures exceed safe operating