Resideo VR8345Q4563 Gas Valve

The Resideo VR8345Q4563 is a universal electronic ignition gas valve designed for high-demand two-stage natural gas systems. Engineered as a robust dual stage gas valve, it delivers a capacity of 240,000 BTU/hr at a 1-inch pressure drop, making it a reliable choice for larger residential and light commercial equipment. This 24Vac valve features a standard opening with 3/4" x 3/4" NPT inlet/outlet ports and is factory-set for a 1.7" W.C. low-fire and 3.5" W.C. high-fire pressure regulator setting. This unit is the direct replacement for VR8345Q4563, 004826F, 720-082, and 18M65. The kit includes a natural to LP conversion kit and two 3/4" x 1/2" reducer bushings, ensuring maximum field flexibility. For technicians diagnosing manifold pressure, the 1/8" NPT pressure tapping with plug allows for precise manometer readings during commissioning. This 24V intermittent pilot gas valve utilizes 1/4" quick-connect male terminals for straightforward wiring into existing control boards.

Key Benefits

• Interchangeable Design: Serves as a universal replacement for a wide range of two-stage intermittent pilot and direct ignition systems.
• Field Adaptability: Includes necessary bushings and an LP conversion kit to handle various pipe sizes and fuel types on-site.
• Precision Regulation: Features a high-flow 1/2 PSI pressure rating with factory-calibrated two-stage regulator settings for optimal combustion.
• Rugged Construction: Built for continuous duty in cycles ranging from 0°F to 175°F, maintaining consistent performance under demanding conditions.

Common Questions

How do I convert the Resideo VR8345Q4563 to Propane?
The included 393691 LP conversion kit contains the necessary spring and regulator components. Follow the provided conversion instructions to ensure the manifold pressure is adjusted correctly for LP operation.

Can this valve replace a single-stage gas valve?
No, this is a two-stage valve specifically designed for equipment with dual-fire rates. Using it on a single-stage system will result in improper combustion and control board errors.

What are the wiring requirements for this universal valve?
The valve operates on a standard 24Vac signal and uses 1/4" male quick-connect terminals. Ensure your transformer is rated to handle the VA load of the valve and the ignition controller combined.

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.

VR8345Q4563 is the cross for RV0072700