Lennox 11W48 Transformer (Input Choke)

and Arcoaire equipment

sealing rope

If the signal drops below the 1

Exact OEM Match: Direct replacement for HH18HC069 and HH18HC069A

Lochinvar & A.O. Smith 100288430 Switch 321142-301 Lennox 11W48 Transformer (Input Choke)The Lochinvar & A. O. Smith 100288430 Low Air Pressure Switch is a critical safety component designed for high efficiency condensing boilers and water heaters. As a veteran technician knows, this normally open switch is calibrated to a precise 0. 75" water column (W. C.) set point. It serves as the primary "proof of airflow" for the inducer motor, ensuring that the combustion blower is creating sufficient negative pressure to safely evacuate flue