Modine 3H0346700004 Conversion Kit 30067439-890 The Mueller Industries A14848 is

The Mueller Industries A14848 is a professional-grade 1/4" straight packless diaphragm valve designed for high-performance refrigeration and air conditioning systems

and the required natural gas orifice with a breakaway ferrule nut for a leak-free seal

the circuit should be wired to break on pressure fall

The 14004697-001 is designed to maintain the intended stroke length of the 13-inch MP953 series

Use the Fast setting for high-efficiency gas furnaces and the Slow setting for oil or larger mass systems to prevent short cycling

Modine 3H0346700004 Conversion Kit 30067439-890 The Mueller Industries A14848 isThe 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.