This unit is the direct replacement for the legacy EP2121S1

this SPST (Single Pole Single Throw) switch provides reliable protection against overheating by breaking the circuit when the temperature exceeds the safety threshold

Corrosion Resistant: Features a robust bronze body and seat with a high-temperature EPDM diaphragm for extended service life in harsh water conditions

Reliable Integration: Integrated end switches allow for 100% confirmation of damper position to the zoning system

Lennox 60M27 Ignition Module Refrigerant This unit is the directThe Lennox 60M27 Ignition Module is a critical OEM furnace control board engineered for high reliability sequence management in gas fired heating systems. This hot surface ignition (HSI) controller, also identified under the part number 60M2701 and the 1018 series, is designed to handle 120 240V output requirements common in residential and light commercial HVAC replacement parts. As a veteran grade ignition control module, it manages the inducer