An open switch usually indicates a restricted flue

Easy Installation: Equipped with pressure plate terminals and teardrop keyholes for rapid mounting and secure wiring

Simplified Installation: Standard 1/4" NPT connection and NPSM 1/2-14 swivel cable connector for efficient field integration

Featuring a 1/4" NPT connection

This ensures that the sensing element remains isolated from the airflow's humidity

McDonnell & Miller WFE-24V Water Feeder Els PW 29614 An open switch usually indicatesThe McDonnell & Miller WFE 24V Water Feeder (Part Number 169550) is a heavy duty electronic water feeder designed for seamless integration with low water cut off (LWCO) systems in residential and light commercial steam boiler applications. Operating on 24Vac, this Uni Match model features field adjustable dwell feed cycles, allowing technicians to fine tune the timing and prevent overfeeding or "hunting" in the system. The 3 8" NPT connections and