Field Controls 46487501 Vent Damper

The Field Controls 46487501 is a 10-inch GVD series gas vent damper designed for high-efficiency 24Vac atmospheric gas heating systems. As a direct replacement for the Q35RN-1, this power vent damper prevents standby heat loss by closing the flue pipe when the burner is off, significantly improving overall AFUE ratings. This specific Model GVD-10PL is supplied without a wiring harness, making it an ideal choice for service technicians replacing an existing unit where the wire assembly remains intact. The heavy-duty stainless steel construction ensures durability against flue gas condensation and high temperatures. Built with a dual-safety interlock system, the unit prevents the appliance from firing until the damper blade is in a fully open position. This gas vent damper is essential for optimizing combustion efficiency and reducing seasonal energy consumption in large-diameter boiler or furnace venting applications.

• Direct Compatibility: Engineered as the primary interchange for the Q35RN-1, ensuring a precise fit in existing 10-inch vent configurations.
• Superior Heat Retention: Eliminates the "chimney effect" by blocking cold air infiltration and retaining heat within the heat exchanger.
• Fail-Safe Operation: Features a redundant safety circuit that monitors blade position to ensure job site safety and code compliance.
• Standard 24V Control: Integrates seamlessly with standard HVAC 24Vac control circuits and thermostat wiring.
• Reduced Cycles: Minimizes burner cycling by maintaining localized heat, extending the life of the gas valve and ignition system.

Is the wiring harness included with the 46487501?
No, the GVD-10PL is the damper head and body assembly only. The wiring harness must be salvaged from the old unit or purchased separately if a full damper kit replacement is required.

Can this damper be installed on oil-fired equipment?
No, this unit is specifically designed for Category I atmospheric gas appliances. Using this on oil-fired systems will result in failure due to different flue gas temperatures and soot accumulation.

What is the purpose of the manual override switch?
The localized switch allows contractors to lock the damper blade in the open position during combustion analysis or system troubleshooting to prevent backdrafting.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.