Modine 3H0337490008 Conversion Kit

As a field technician, you understand that a precise fuel transition is critical for maintaining combustion stability and system safety. The Modine 3H0337490008 Conversion Kit is the essential OEM replacement part designed to adapt your natural gas (NAT) unit heater for liquid propane (LP) operation. This specific kit is the direct engineering successor to the Modine 3H33749-8, ensuring a drop-in fit without the need for manifold modifications. When performing a gas conversion, this kit provides the high-precision burner orifices and gas valve regulator springs necessary to manage the higher BTU density of propane. Proper installation ensures the burner flame remains within the manufacturer’s specified manifold pressure, typically 10" W.C. for LP units, preventing soot accumulation and protecting the heat exchanger’s integrity. This LP conversion kit is compatible with various Modine Hot Dawg and industrial series heaters, making it the standard choice for contractors converting units in residential garages or commercial warehouses.

Key Benefits:

• Exact OEM Specifications: Direct replacement for Modine 3H33749-8, ensuring perfect compatibility with the original gas train.
• Complete Conversion Package: Includes the required propane orifices and regulator spring kit for a comprehensive field update.
• Enhanced Combustion Safety: Engineered to provide the correct fuel-to-air ratio for liquid propane, reducing the risk of delayed ignition or carbon monoxide production.
• Versatile Application: Designed for Modine unit heaters, providing flexibility for job sites where natural gas utility lines are unavailable.

Common Questions:

• Can I use this kit for high-altitude installations? This kit is generally rated for 0-2,000 feet; always verify the orifice size if your job site exceeds this elevation to ensure proper de-rating.
• Is this compatible with all gas valves? It is designed for specific Honeywell or White-Rodgers valves used in Modine equipment; check your valve model prefix before starting the LP conversion.
• Do I need specialized tools for installation? A calibrated manometer is required to set and verify the manifold pressure after the regulator spring is swapped.

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.