Lochinvar & A.O. Smith 100109935 Flue Switch 320788-702 extending the service life of

extending the service life of the valve internal components

The Modine 5H0735910008 Pressure Switch is a critical safety component designed for precise combustion air monitoring in high-efficiency heating systems

Engineered with a 15 PSI open and 19 PSI close setting

providing a seamless mechanical fit

Lochinvar & A.O. Smith 100109935 Flue Switch 320788-702 extending the service life ofMaintain the exhaust integrity and operational safety of your high efficiency heating systems with the Lochinvar & A. O. Smith 100109935 Flue Switch. As a critical safety component, this blocked flue pressure switch is engineered to detect vent obstructions and immediately signal the control board to terminate the ignition cycle, preventing hazardous flue gas recirculation. This genuine OEM part is the designated 100109935 replacement for 9004550215,