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ML-SERIES FIREPLACE
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4.
You will now be able to access the burner orifice, which is located inside the air shutter box. Using a ½” deep well socket
wrench, remove the orifice. When removing and installing the orifices be sure to use a wrench to keep the fitting the orifice
screws onto from rotating. The ML72 has two air shutter boxes, both orifices need to be replaced.
5.
Thread a new orifice on the orifice mounting brass fittings. Tighten down the orifice. Next continue to follow the instructions to
convert the pilot for LP Gas.
