Built to withstand rugged mechanical room environments

DEFROST RELAY

Adjustments are made via the adjustment screw on the pilot assembly

offering identical pressure ranges and mounting specs with updated internal components for modern HVAC requirements

reducing downtime during component sourcing and installation

Lochinvar & A.O. Smith 100208660 Flow Switch 320735-701 Built to withstand rugged mechanicalThe Lochinvar & A. O. Smith 100208660 Flow Switch is a critical OEM safety component engineered to monitor fluid velocity within the primary heat exchanger loop. As a veteran grade HVAC replacement part, this liquid flow switch utilizes a high precision #1 paddle assembly to detect consistent water movement, preventing the dry firing of high efficiency boilers. It serves as a direct replacement for WTR2210, WTR2210K, and 100173714 part numbers.