Lochinvar & A.O. Smith 100208407 Switch Freon preventing short-cycling and optimizing system

preventing short-cycling and optimizing system efficiency

Precision Calibration: Factory-set trip points specific to Copeland motor characteristics for accurate overload protection

While cleaning with a light abrasive can temporarily restore signal

Versatile Ignition Support: Fully compatible with both Direct Spark Ignition (DSI) and Hot Surface Ignition (HSI) control boards

Lochinvar & A.O. Smith 100208407 Switch Freon preventing short-cycling and optimizing systemThe Lochinvar & A. O. Smith 100208407 Blocked Flue Switch is a critical safety component designed for high efficiency condensing boilers and water heaters. As a factory authorized replacement for PRS2708 and PRS2708K, this blocked flue pressure switch is calibrated to a specific 55" WC set point to detect dangerous venting restrictions. When flue gases cannot exit the heat exchanger due to obstructions like bird nests, ice, or excessive condensate