this specific model is designed for 277V/460V primary input

and blowers where a dry contact signal is required for the BAS (Building Automation System)

Technicians can rely on this OEM blower control board for precise fan delay-off timings

Compatible with a wide range of brands including Intertherm

Lennox 51M91 Gasket 322057-301 this specific model is designedThe Lennox 51M91 Blower Gasket is a critical high temperature seal designed specifically for Lennox furnace blower assemblies and 4 inch inducer motor housings. Engineered to withstand the thermal cycling inherent in high efficiency HVAC systems, this 4 inch blower gasket ensures an airtight seal between the blower housing and the furnace cabinet, preventing bypass air and maintaining static pressure integrity. This OEM replacement component is vital