Resideo 394588 Conversion Kit

The Resideo 394588 Conversion Kit is a professional-grade solution engineered to convert single-stage gas valves from Liquid Propane (LP) to Natural Gas. Designed for field reliability, this kit provides a precise 3" to 5" W.C. adjustment range, ensuring optimal manifold pressure for burner efficiency. This kit is a direct replacement for the Honeywell 394588/U and is compatible with a broad range of combination gas controls, including the VR8200, VR8300, VR8104, and VR8305 series. For technicians servicing intermittent pilot or standing pilot systems, this hardware provides the necessary components to maintain BTU input ratings according to appliance manufacturer specifications.

This conversion kit includes a replacement regulator spring, O-ring, pressure regulator adjustment screw, and cap screw. It is compatible with standard and slow opening valves but cannot be used with step-opening regulators. Compatibility extends to the VR4200, VR4300, and SV9500 SmartValve families, making it a versatile addition to any service truck. Proper installation requires a manometer to verify the 3.5" W.C. nominal setting and ensuring the main burner orifices are sized correctly for natural gas applications.

• Broad Compatibility: Seamlessly integrates with VR8204, VR8304, VR4204, and VR4304 gas control series.
• Precise Pressure Control: Features a high-tensile regulator spring designed for consistent 3-5 inch water column delivery.
• Complete Hardware Set: Includes all critical gas valve parts such as the adjustment screw and O-ring for a leak-free seal.
• Standard/Slow Opening Support: Optimized for single stage gas valve conversion on both 24V and millivolt systems.
• OEM Reliability: Guaranteed mechanical fit for Resideo and Honeywell gas controls, including the VR8205 (excluding VR8205S).

Can this kit be used on a step-opening gas valve?
No, this kit is specifically designed for standard and slow opening pressure regulators. Step-opening valves require a different regulator stack and are not compatible with the 394588 spring and screw assembly.

Is the 394588 and 394588/U the same part?
Yes, the 394588 is identical to the 394588/U SKU. The "/U" suffix typically denotes "universal" packaging for the retail channel, but the technical specifications and components remain identical.

What is the nominal pressure setting for this kit?
While the adjustment range is 3" to 5" W.C., the typical preliminary setting for natural gas conversion is 3.5" W.C. Always verify the appliance nameplate and use a digital manometer for final calibration.

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.