Field Controls 46417901 Vent Kit

For contractors looking to resolve chimney-related drafting issues, the Field Controls 46417901 SWG-3WH Water Heater Vent Kit provides a robust, field-tested solution for side-wall venting. Engineered specifically for 30mV gas water heaters with heating capacities up to 70,000 BTU, this kit eliminates the need for expensive vertical chimney liners or structural masonry. It creates 100% negative pressure within the vent pipe, allowing for the use of standard galvanized materials rather than high-cost stainless steel, while maintaining peak safety by drawing combustion gases away from the structure.

The system is built around the SWG-3 Power Venter and the CK-20FV Control Kit, ensuring a seamless interlock between the gas valve and the exhaust blower. When the thermocouple-based system calls for heat, the venter motor activates immediately to establish a draft before the burner fires. Integrated spillage switches and a post-purge cycle protect the home from residual flue gases, making it a reliable choice for power venting installations where natural draft is insufficient.

Key Benefits:

• Compatibility: Optimized for 30-millivolt gas water heater systems and LP or natural gas applications up to 70,000 BTU.
• Cost Efficiency: Negative pressure design permits standard galvanized pipe usage, significantly reducing material overhead.
• Flexible Installation: Professional-grade sidewall power venter allows for horizontal exhaust runs when vertical chimneys are unavailable or blocked.
• Safety Interlock: Includes the CK-20FV Control Kit with pressure sensing technology to ensure the burner only activates under proper draft conditions.

Common Questions:

Can I use this kit for a 24V furnace?
No, the 46417901 is specifically tuned for millivolt (30mV) water heater circuits. For 24V appliance applications, a different CK-series control kit is required.

Does this kit support high-efficiency condensing units?
This kit is designed for atmospheric gas water heater venting. Always verify flue gas temperatures at the venter inlet do not exceed the 550°F maximum rating.

Is a barometric draft control required?
Yes, to ensure stable combustion and prevent excessive pull on the burner, a Type MG-1 draft control is typically recommended in conjunction with this power venting system.

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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.