matching the correct orifice size is vital to prevent over-pressurization and ensure the internal relief valve (IRV) functions within its design parameters

allowing for body installation before the electrical components are attached

rotate the adjustment screw clockwise to increase the set point or counter-clockwise to decrease it

Smith 100111591 is a high-performance 14 inch burner assembly specifically engineered for commercial and residential natural gas (NG) water heaters and boilers

Key Benefits: Precise Thermal Regulation: Delivers accurate temperature readings to the control board to prevent system overheating

Modine 3H0330740006 Burner Assembly 322027-701 matching the correct orifice sizeThe Modine 3H0330740006 Burner Assembly is a factory spec stainless steel replacement burner (replaces older aluminized 3H0330730006 units) engineered specifically for high demand commercial heating environments. This 8 burner, 3 inlet manifold configuration is critical for maintaining precise unit heater combustion and flame stability in Modine PDP175 and PA175 gas fired units, including the Modine PA170, PAE145, and PV145 series. Constructed from