or a compromised secondary heat exchanger causing flue gases to backup

Reduced Maintenance: Blowout-proof stem design and stainless steel/brass internals resist mineral buildup and mechanical wear

For the mechanical contractor

OEM Compatibility: A direct drop-in replacement for York 026-37915-000

For maximum component life

Reznor 234054 Pressure Switch 340793-762 or a compromised secondary heatThe Reznor 234054 Pressure Switch is a critical safety component designed for precise differential pressure sensing in Reznor unit heaters. Calibrated to a 0. 20" WC setpoint, this single pole, double throw (SPDT) switch monitors the pressure drop across the heat exchanger, ensuring the induced draft motor is providing adequate airflow for safe combustion. Primarily utilized in UDAP, UDAS, UDX, and SDX series gas fired units, it serves as a reliable