Lochinvar & A.O. Smith 100167835 Control 320788-703 restoring the precise compression ratios

restoring the precise compression ratios required for commercial HVACR systems

and temperature extremes

Key Benefits Precise 24VAC Output: Ensures stable power delivery to thermostats and ignition controls

This spring is the standardized replacement for the MP953 series

these carbon post-filters cannot be cleaned or vacuumed and must be discarded once the carbon is saturated

Lochinvar & A.O. Smith 100167835 Control 320788-703 restoring the precise compression ratiosThe Lochinvar & A. O. Smith 100167835 Control is a critical integrated control board engineered specifically for the Knight WH199 wall mount boiler series. Designed for peak hydronic heating performance, it serves as the central intelligence for your appliance, managing the firing rate, combustion fan speed, and multi zone pump logic. This OEM replacement part replaces previous iterations with improved firmware to handle sophisticated modulating