Reznor 201159 Pressure Switch Els PW 17895 it utilizes a 24V control

it utilizes a 24V control circuit to actuate internal bimetal heaters

This ACR tube fitting is fully compatible with copper

it eliminates the communication errors and "Out of Range" faults often associated with drifted or failed thermistors

making it ideal for 2-wire or 4-wire retrofit applications

Reznor 201159 Pressure Switch Els PW 17895 it utilizes a 24V controlThe Reznor 201159 Pressure Switch is a critical OEM safety component engineered for precise combustion airflow monitoring in high capacity gas fired unit heaters. Calibrated to a specific 1. 40" WC (Water Column) set point, this SPST (Single Pole Single Throw) switch ensures the inducer motor maintains the necessary static pressure for safe flue gas venting before ignition. Featuring dual 1 4" barb connections for secure pneumatic tubing attachment,