Lochinvar & A.O. Smith 100208384 Pressure Switch 320074-702 providing consistent hydronic zone valve

providing consistent hydronic zone valve performance

Optimal Airflow: High-performance 3300 RPM output ensures consistent negative pressure for safe venting and diagnostic compliance

this authentic OEM replacement part is precision-machined to facilitate a leak-proof seal around the valve stem

For differential service

How should the control pipe be installed

Lochinvar & A.O. Smith 100208384 Pressure Switch 320074-702 providing consistent hydronic zone valveThe Lochinvar & A. O. Smith 100208384 Pressure Switch is a critical safety component designed for precise combustion air monitoring in high efficiency commercial boilers and hydronic heaters. Calibrated to an exact 0. 85" WC (Water Column) set point, this OEM replacement part ensures the inducer blower is generating sufficient static pressure before allowing the ignition sequence to proceed. As a veteran preferred SPDT (Single Pole Double Throw)