Optimized Thermal Management: Shaded pole design provides natural internal overload protection for continuous duty cycles

this low-voltage thermostat serves as a robust replacement part that facilitates consistent burner cycling and precise thermal management across expansive floor plans

Durable diaphragm construction engineered to withstand high-cycle residential and commercial heating demands

electric heat elements

The fuse usually opens due to flames "rolling out" of the combustion chamber

Lennox 15M20 Pressure Switch Els PW 17895 Optimized Thermal Management: Shaded poleThe Lennox 15M20 Pressure Switch is a critical safety component designed for precise draft proving in residential and commercial furnaces and rooftop units. This OEM Lennox 15M20 switch is a single pole, single throw (SPST) normally open configuration that closes when it detects a pressure fall of . 10"wc. Built with a 1 4" barb connection for easy hose attachment, this air proving switch ensures the combustion air inducer is pulling sufficient vacuum