Operating instructions

Heatmax Furnace Installation and Operation Manual
28
1. Remove the door (F) and place it on a stable work surface, handle down.
2. Using pliers, remove the door gasket (A).
3. Using a scraper or a small flat screwdriver, remove the adhesive left in the gasket
grove in the door then clean the surface using a commercial vacuum.
4. Use a Phillips screwdriver or a power drill to remove the screws (B) that holds the glass
retainer (C).
5. Remove the glass frame (D)
6. Remove the glass (E) (or pieces of glass if it is damaged) and clean the inside of the
door frame.
7. Remove the old glass gasket.
8. Install the new gasket on the glass. Remove a part of the paper covering the gasket
adhesive. Center the gasket on the edge of the glass so that when folded and glued,
the gasket is equal on both sides. Do not stretch the gasket during installation. Remove
a majority of the paper, turn the glass to facilitate and complete the installation of the
gasket. When you return to the starting point, cut the gasket so that the ends overlap
by about ½ inch.
9. Install the glass (E) and glass frame (D) and centering it in the frame of the door and
install the glass retainer frame (D) and glass retainers © taking care not to over tighten
the screws (B). Note that the two main causes of glass breakage are unequal position
in the door and screws too tight.
10. Install the new door gasket (A). To do this, use about ¼ inch. (6mm) of adhesive to the
bottom of the groove that holds the gasket in the door. Then lay the new gasket
starting from the center of the hinge side and taking care not to stretch the gasket
during installation. Leave about ½ inch of gasket exceed the frame of the door. Once
jointed, push the fibers protruding towards the inside of the groove in the adhesive.
Install the door and let dry for 24 hours before using the furnace.