are calibrated to match original factory performance curves

facilitating communication between the sensors and the firing mechanism

while the included straight connector simplifies the installation process for field technicians

the Lennox 26H61 Damper Switch is a critical component for ensuring the HVAC air damper is positioning correctly within the ductwork

using this factory authorized part is preferred over field-fabricated jumpers to ensure HVAC system compatibility and high-performance signal integrity

York S1-7970-3281/A Limit Switch 320819-301 are calibrated to match originalThe York S1 7970 3281 A Limit Switch is a critical safety component designed for precise thermal monitoring in residential and light commercial HVAC systems. This high limit cutout switch features a 145F Open (FOP) and 115F Close (FCLS) configuration, ensuring the furnace heat exchanger remains within safe operating parameters. Acting as a normally closed thermal disc, the S1 7970 3281 A interrupts the burner circuit if airflow is restricted or