this unit features a factory-broached 1/4" x 1/8" keyseat specifically sized for a 1 1/8" shaft to ensure standard ANSI compliance

using a capacitor rated for 330Vac to replace a 250Vac or 320Vac unit provides increased durability and is standard practice in high-performance HVACR service

Common Questions: Will this replace a 30VA transformer

facilitating quick field installation in tight furnace plenums

Will this tool remove surface oxidation from the coils

York S1-025-36115-001 Switch Els PW 17895 this unit features a factory-broachedThe York S1 025 36115 001 Air Proving Switch is a critical safety component engineered for York HVAC systems, including packaged rooftop units and residential furnaces. As an HVAC air pressure switch, it functions as a differential pressure sensor, monitoring the supply fan to ensure sufficient airflow before allowing ignition or cooling stages to engage. This OEM replacement part is built with a NEMA 1 electrical enclosure and is compatible with R