High-Altitude Optimization: Specifically calibrated for elevated installations to ensure clean combustion and prevent carbon monoxide buildup

The ICM103 Delay-On-Make Timer is a high-precision

Ensures accurate flame signal detection to prevent nuisance service calls and system lockouts

The Resideo DP2020B5039 PowerPro Definite Purpose Contactor is a reliable 2-pole HVAC contactor designed for high-cycle applications in air conditioning

soot buildup on the electrodes

York S1-025-26339-001 Limit Switch High-Altitude Optimization: Specifically calibrated forThe York S1 025 26339 001 Limit Switch is a primary safety component engineered for precise thermal monitoring in residential and light commercial forced air systems. This 100 250F auto limit switch features an automatic reset mechanism, designed to break the 24V control circuit if the heat exchanger plenum exceeds the calibrated 250F threshold. As a critical furnace high limit sensor, it prevents thermal stress and potential heat exchanger cracks by