Reznor 196983 Gas Valve

The Reznor 196983 Gas Valve is an essential OEM replacement component designed for high-capacity single stage heating applications. Operating on a 24V control circuit, this unit is factory-calibrated for Liquid Propane (LP) systems with a standard 11" WC (Water Column) manifold pressure setting. Engineered for heavy-duty performance, it features 3/4" NPT inlet and outlet connections, ensuring the high flow rates required for larger Reznor unit heaters. This combination gas valve serves as a direct drop-in for Reznor models UDAP, UDAS, UDBP, and UDBS (sizes 225-400), as well as the UBX, UBZ, UDX, and UDZ series. Its robust solenoid construction provides reliable pilot-to-main-burner ignition sequencing, maintaining the tight pressure regulation necessary for consistent combustion and thermal efficiency. When onsite, verify your heating load and manifold requirements against the 196983 data plate to ensure precise field integration.

• OEM Precision: Guaranteed compatibility with Reznor 225-400 units eliminates field modification and mounting issues.
• High-Flow Capacity: The 3/4" gas valve sizing supports the BTU demands of large-scale industrial and commercial unit heaters.
• LP-Specific Calibration: Simplified installation with pre-set 11" WC regulation for propane gas valve applications.
• Durable Solenoid Design: Engineered to withstand high cycles in demanding HVACR environments without pilot drop-out.

Is the 196983 compatible with Natural Gas units?
No, this specific part is factory-configured for Liquid Propane (LP). Installing this on a Natural Gas system without a conversion kit or using the incorrect valve can result in hazardous combustion conditions.

Can I use a 1/2" reducer if my supply line is smaller?
While reducers are physically possible, HVAC technicians should verify that the supply line can deliver the total BTU requirements of the Reznor garage heater or unit heater to prevent pressure drops at the 24V gas valve.

What are the symptoms of a failing Reznor gas valve?
Common indicators include the pilot staying lit while the main burner fails to fire, erratic manifold pressure, or an audible hum from the solenoid without port opening.

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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.