Beckett Igniter 21979U Gas Valve

The Beckett 21979U Gas Valve is a critical component for high-efficiency heating systems, specifically engineered as a 120v 2-stage gas valve for precise fuel regulation. This redundant gas control valve is designed to handle the sequencing requirements of multi-stage furnaces and boilers, ensuring optimal manifold pressure for both low and high-fire operations. As a direct White Rodgers 36G54-224 replacement, this unit features a compact footprint and standard 1/2-inch NPT inlet/outlet connections, facilitating a straightforward swap-out during service calls. The Beckett 21979U integrates seamlessly with modern furnace control boards to manage intermittent pilot ignition or direct spark systems. Technicians should verify gas valve manifold pressure settings during commissioning to ensure the burner assembly maintains steady combustion across both stages. Built for durability in demanding HVACR environments, this dual stage gas control provides the reliability necessary for consistent residential and light commercial heating performance.

• Precise 2-Stage Modulation: Operates efficiently at low and high fire to match building heat load requirements.
• OEM Compatibility: Serves as a reliable Beckett replacement part for units requiring the 21979U or equivalent 36G series valves.
• Standardized Voltage: Operates on a 120V AC gas valve circuit, compatible with standard North American HVAC control systems.
• Compact Housing: Designed for tight vestibules, making it easier to access and install in confined furnace cabinets.
• Redundant Safety Shutoff: Features dual internal valves to ensure positive gas closure when the thermostat call for heat ends.

Is the Beckett 21979U compatible with LP gas?
This valve is typically configured for natural gas from the factory. A natural gas to LP conversion kit must be installed by a licensed technician if the application requires propane.

Can I use this valve to replace a single-stage model?
No, this is a 2-stage gas valve designed for specific control board logic. It should only be used as a direct replacement for multi-stage systems to ensure safe and proper appliance operation.

What are the inlet and outlet sizes?
The unit features standard 1/2" NPT threading, which is the industry standard for most residential HVAC gas valve replacements.

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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.