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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
The AH13B020 is a standard two-wire model without an integrated auxiliary end switch
This unit is built as a direct 1-to-1 match for part number 69M3301
It typically manages the timing sequence between the thermostat’s call for fan (G-terminal) and the actual activation of the blower motor or heating elements
The high-pressure cutout is set using the range screw located at the top of the unit
Reznor 121600 Gas Valve 30067439-890 The AH13B020 is a standardThe Reznor 121600 Gas Valve is a professional grade liquid propane (LP) gas control engineered for high performance spark ignition systems. This specific 24V gas valve features a standard 1 2" NPT inlet and a 3 4" NPT outlet, making it a drop in replacement for a wide range of Reznor unit heaters and duct furnaces. Designed to handle the rigorous demands of commercial and industrial heating environments, the Reznor 121600 ensures precise fuel