Field Controls 46487301 Vent Damper R-410A this 200F limit switch monitors

this 200F limit switch monitors internal water temperatures and triggers an immediate system shutdown if the 200°F threshold is exceeded

Common indicators include grinding or squealing sounds (bearing wear)

Chemical Resistance: The exclusive compounded polyethylene formulation provides superior resistance to corrosion and environmental degradation

Featuring 3/8" flare connections

the switch opens the electrical circuit when temperatures hit the 170°F threshold and resets once the system cools to 130°F

Field Controls 46487301 Vent Damper R-410A this 200F limit switch monitorsThe Field Controls 46487301 (Model GVD 8PL) is a heavy duty, 8 inch automatic gas vent damper designed for seamless integration with 24Vac heating systems. This stainless steel vent damper serves as a direct replacement for Q35RJ 1 and is compatible with both intermittent ignition and standing pilot systems. Engineered to optimize gas boiler efficiency, the motor driven assembly automatically closes the flue during off cycles to prevent conditioned