Lochinvar & A.O. Smith 100113143 Switch 320788-702 3 ohm or 9

3 ohm or 9

25" Bore: Ensures accurate shaft seating and reduces mechanical stress on the drive assembly

This Eaton Cutler-Hammer contactor is UL recognized and CSA certified

Frequent indicators include the vacuum pump slowing down shortly after a full charge

Lochinvar & A.O. Smith 100113143 Switch 320788-702 3 ohm or 9The Lochinvar & A. O. Smith 100113143 Blocked Inlet Switch is a critical safety component designed for high efficiency commercial water heaters and boilers, including the Cyclone BTH and State SUF series. This genuine OEM replacement part acts as a normally closed (NC) pressure sensor calibrated to 2. 5" WC. Its primary function is to monitor the integrity of the air intake system, ensuring the combustion blower receives adequate airflow for safe