Lochinvar & A.O. Smith 100233301 Switch 320720-756 Engineered with non-volatile memory

Engineered with non-volatile memory

professional finish on every service call or retrofit project

this normally open switch ensures the inducer motor is generating sufficient draft before allowing the ignition sequence to proceed

The SP20867C is designed for specific newer-generation Rheem-Ruud models

Lochinvar & A.O. Smith 100233301 Switch 320720-756 Engineered with non-volatile memoryThe Lochinvar & A. O. Smith 100233301 Switch is a critical fixed setting Normally Open (N. O.) air pressure switch designed for negative pressure sensing applications in high efficiency venting systems. Calibrated specifically to 1. 25" WC, this OEM component serves as a primary safety proving switch, ensuring the combustion blower is generating sufficient draft before the ignition sequence initiates. For veteran technicians, this 100233301 pressure