Reznor 177395 Gas Valve

The Reznor 177395 is a professional-grade VR8204Q2400 combination gas control, specifically engineered for two-stage gas valve applications in Reznor unit heaters and industrial HVAC systems. This 1/2" NPT valve is factory-configured for liquid propane (LP) and features an intermittent pilot ignition system designed for high-efficiency operation. By utilizing 2-stage regulation, this component allows your heating equipment to modulate between low and high fire rates, significantly reducing short-cycling and improving thermal comfort in commercial environments. The Honeywell VR8204Q2400 chassis provides a straight-through body pattern with a 24V, 60Hz electrical rating, drawing a consistent 0.5A during dual-operator engagement. Built for demanding mechanical rooms, it maintains reliable performance within an ambient temperature range of -4°F to +158°F and supports a maximum inlet pressure of 14" W.C. (1/2 PSI). As a critical HVAC replacement part, it ensures precise manifold pressure control for LP-fired appliances, maintaining the strict combustion parameters required by veteran service technicians.

• Optimized LP Regulation: Specifically calibrated for liquid propane, ensuring stable gas delivery for 2-stage heating cycles.
• Intermittent Pilot Technology: Reduces fuel waste by eliminating the need for a standing pilot, improving overall AEO efficiency values.
• OEM Compatibility: Direct replacement for Reznor 177395 and Honeywell VR8204Q2400, ensuring zero-clearance fitment in supported unit heaters.
• Industrial Durability: Features a fine mesh inlet screen to protect internal valve solenoids from gas line debris and contamination.
• Straight-Through Design: Simplifies installation in tight mechanical cabinets with standard 1/2" inlet and outlet NPT threading.

Is the Reznor 177395 compatible with natural gas systems?
This specific model is factory-set for liquid propane. While VR8204 series valves can often be converted, a specific conversion kit must be used to ensure safe manifold pressures for natural gas applications.

What are the wiring requirements for a 2-stage HVAC gas valve like the VR8204Q?
The valve requires a 24VAC power supply. As a two-stage component, it typically utilizes a 3-wire connection to allow the thermostat or ignition module to toggle between the first and second stage solenoids.

How do I troubleshoot low heat output with this valve?
Verify that the 24V signal is reaching the high-stage operator. If the valve only fires on the low stage, check for a faulty second-stage solenoid or improper manifold pressure settings at the regulator adjustment screw.

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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.