Check the terminal designations on your old module to ensure they match the Robertshaw 790-400 layout for spark

fitting PDS4 packaged units and numerous RTU models across ICP sub-brands

Key Benefits: Safe Startup: Integrated 30-second pre-purge clears the combustion chamber of residual gases before the ignition cycle begins

Refer to the range configuration table to set the device for 0-1"wc

this unit is the factory-authorized solution for older model numbers including HD46MR122

Modine 5H1022400000 Fan/Motor Assembly 323613-751 Check the terminal designations onThe Modine 5H1022400000 Fan Motor Assembly is a high performance OEM replacement engineered for precise compatibility with specific Modine unit heaters. As a complete fan and motor assy, this unit eliminates the diagnostic guesswork of individual component failure by providing a factory balanced 115V motor and aerodynamically matched fan blade. Whether you are performing a seasonal overhaul or responding to a critical "no heat" call, this Modine