Technicians prefer the A30 series for its rugged construction and repeatable accuracy in low-ambient cooling conditions

this motor is a critical component for restoring system head pressure

Can I use this as a substitute for a generic 2-pole contactor

The kit includes the refined BCC3 control board

Lochinvar & A.O. Smith 100187859 Switch 318172-701 Technicians prefer the A30 seriesThe Lochinvar & A. O. Smith 100187859 Switch is a critical 2. 0" blocked outlet switch designed for high efficiency gas fired commercial water heaters and boilers. As a genuine OEM replacement part, this pressure switch is calibrated to detect vent obstructions, ensuring the system shuts down safely if exhaust gases cannot be properly expelled. It is commonly utilized in A. O. Smith Cyclone BTH 300A series and comparable Lochinvar Power Fin models.