Lochinvar & A.O. Smith 100109522 Switch 320788-703 serving as a vital protection

serving as a vital protection mechanism for evaporator coils and refrigeration circuits

specifically engineered for 90+ efficiency gas furnaces

This model includes a break-off shaft and mounting bracket for fast field replacement of older OEM controls

For contractors performing an AC repair or system overhaul

Lochinvar & A.O. Smith 100109522 Switch 320788-703 serving as a vital protectionThe Lochinvar & A. O. Smith 100109522 Pressure Switch is a critical safety component designed for precise pressure monitoring in high efficiency boilers, furnaces, and water heaters. This SPDT pressure switch (Single Pole Double Throw) features a fixed set point, typically calibrated to 0. 95 WC, ensuring that the combustion blower is moving sufficient air before the ignition sequence initiates. As a genuine OEM replacement part, the 100109522 is