The York S1-3500-411P/A Heater Element Kit is a direct OEM replacement heating part designed for high-demand residential and commercial HVAC applications

Key Benefits Direct Compatibility: Engineered specifically for Lennox EAC-20

If the metal has thinned or the aperture is obstructed

Simplified Diagnostics: Standardized spade terminals allow for rapid multimeter testing and integration with 24V control boards

Optimized Sealing: Provides a secure fit to maintain the NEMA-rated enclosure integrity of the heater cabinet

Reznor 259521 Relay Kit/Sequencer Els PW 17895 The York S1-3500-411P/A Heater ElementThe Reznor 259521 Relay Kit Sequencer is a critical OEM replacement part designed to maintain precise control over blower and venting sequences in gas fired unit heaters. This professional grade time delay relay replaces obsolete components, including P N 46233 (Texas Instruments #60000GO 17) and P N 259518 (ICM #CTVR AT1207). It is engineered for industrial furnace repair and commercial HVAC applications, facilitating the correct sequencing of