The Modine 3H0346700004 is a professional-grade Natural Gas to Propane (LP) conversion kit engineered specifically for Modine unit heaters. This kit allows for precise manifold pressure adjustments and orifice replacement to ensure stoichiometric combustion when switching fuel sources. As the direct field replacement and cross-reference for Modine 28046, this kit maintains the structural integrity and safety parameters of the original burner assembly. Technicians can rely on the 3H0346700004 for a seamless fit in gas valve manifolds, ensuring consistent BTU output and reliable ignition cycles in high-demand commercial environments. Utilizing high-tolerance brass orifices and a calibrated regulator spring, this Modine gas conversion kit addresses the specific specific gravity differences between NAT and LP gas. Proper installation of the Modine LP conversion kit is essential for preventing carbon soot buildup and maintaining heat exchanger longevity. Verify model compatibility with the appliance rating plate before initiating the unit heater fuel conversion process. Key Benefits Direct Cross-Reference: Engineered as the exact technical replacement for the legacy Modine 28046 part number. Precision Metering: Includes high-grade LP gas orifices sized for specific burner port loading to ensure optimal flame stability. Complete Component Set: Features all necessary gaskets, springs, and conversion labels required for a code-compliant NAT to LP conversion. System Reliability: Minimizes the risk of delayed ignition or pilot outages by providing the correct propane gas manifold pressure settings. Common Questions Is the 3H0346700004 compatible with all Modine unit heaters? This kit is designed for specific series units. Always cross-reference your model and serial number against the manufacturer’s parts list to ensure the orifice sizing matches the BTU rating of your specific unit. What is the primary difference between this kit and the 28046? The 3H0346700004 is the current manufacturing standard and serves as the direct replacement for the 28046, offering the same fit, form, and function for field conversions. Are tools beyond a standard manometer required for installation? Standard technician tools, including a calibrated manometer for checking manifold pressure and a socket set for orifice replacement, are required to complete the conversion and verify safe operation. 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.
