Quiet Operation: Soft-start capabilities eliminate the abrupt noise associated with motor cycle-up

significantly reducing labor hours and long-term diagnostic calls

providing the mechanical reliability required for maintaining system static pressure and overall thermal efficiency in large-scale furnace and AC configurations

Dual-stage filtration provides 3-micron particulate removal and bulk liquid separation in a single housing

Lochinvar & A.O. Smith 100208379 Pressure Switch 319848-301 Quiet Operation: Soft-start capabilities eliminateThe Lochinvar & A. O. Smith 100208379 Pressure Switch is a critical safety component designed for precise combustion air monitoring in high efficiency water heaters and boilers. Calibrated to a . 95" WC (Water Column) set point, this normally open switch ensures the inducer motor is generating sufficient draft before allowing the ignition sequence to proceed. As a genuine OEM replacement, it maintains the specific pressure differential required to