Reznor 203932 Pressure Switch Els PW 17895 the S1-025-41321-000 is frequently used

the S1-025-41321-000 is frequently used across both brands

or visible spotting/leaking from the vent cap

This 3-pole contactor is rated for a 30 amp inductive load (FLA) and up to a 40 amp resistive load

Safety Integrity: Prevents catastrophic heat exchanger failure by monitoring air temperature at the most critical point in the plenum

Key Benefits Precise Flow Regulation: The equal percentage flow curve provides linear heat output for superior temperature stability

Reznor 203932 Pressure Switch Els PW 17895 the S1-025-41321-000 is frequently usedThe Reznor 203932 High Altitude Pressure Switch is a critical safety component designed for precise airflow monitoring in gas fired unit heaters and HVAC systems. Engineered as a genuine Reznor OEM replacement part, this switch is factory calibrated to a . 25" WC set point, ensuring the inducer fan generates sufficient draft before permitting the ignition sequence. Featuring a Single Pole Double Throw (SPDT) configuration, it provides versatile