LVWO Waste Oil Boiler - Columbia Heating

Replacing the Burner Swing Door Insulation BoardCAUTIONThe hinged burner door is opened by removing the six 3/8” brass nuts located on the top,bottom and right side of the door. The two brass nuts located on the left side hold the door tothe hinge. Do not loosen or remove the brass nuts holding the door to the hinge when theburner is installed.CAUTIONBe sure electric power is off to prevent accidental burner firing.1. Remove the jacket front cover. Remove six 3/8” brass nuts and flat washers from theswing-out burner door. DO NOT REMOVE BRASS NUTS ON HINGE SIDE. Swingburner door open.2. Remove four ¼” wing nuts and flat washers from elevator bolts that hold the refractory tothe rear of the door. Remove refractory.3. Position the new refractory on the door, centering the refractory on the burner tubeopening. Check that the view port is aligned with the refractory. Check the position ofthe refractory frequently during installation.4. Install the four elevator bolts to hold the refractory to the door and install the flat washersand ¼” wing nuts. Tighten the wing nuts to make them snug while checking the positionof the refractory.5. Close the burner swing door slowly allowing the refractory to compress under the hingeand along the surface of the door frame.6. Install two of the 3/8” brass nuts and flat washers on the long bolts on the side of the door.Tighten evenly until the remaining four 3/8” brass nuts and flat washers can be installed.Continue to tighten all six nuts and washers until the refractory gasket is compressedevenly around the frame. Do not over tighten.Replacing the Rear Turn-Around cover RefractoryCAUTIONBe sure electric power is off to prevent accidental burner firing.1. Remove the jacket rear cover. Remove eight 3/8” brass nuts and flat washers. Removethe rear cover.LVWO Manual Page 29 of 48