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Appendix C:
Changing Orifices
To change the orifices, such as when derating for
altitude, follow these steps.
1. Remove the side trim panels according to the
directions on page 12 to gain access to the levers
that secure the glass door, then remove the glass
door according to the directions on page 7.
2. Disconnect the electrical connections and the
gas line fitting from the fuel module.
3. Remove the cross log, the front logs, and the
two ember strips following the directions on page
7.
4. Pull the module out an inch or so so that there
is enough room to remove the rear log.
5. Remove the burner system module.
6. Pull the top tray forward so that it disengages;
lift the front edge up, then remove it.
8. Remove the center burner.
9. Remove the front burner.
10. Remove the 1/4-20 fasteners and retainer clip
that secure the rear burner, then remove the rear
burner.
11. Lift the rear air deflector straight up, and
rock it forward.
12. Remove the orifice compartment cover;
(before it can be removed, it may be necessary to
use pliers to straighten the tab that goes throught
the T-slot, which holds the cover in place. Pull the
cover to the left and lift it out. The orifices will now
be visible).
13. Lift the orifice compartment dividers straight
up to remove them for better access. When you re-
install the dividers, make sure they are seated all
the way in to prevent air leakage from one com-
partment to another.
14. Re-install all components in the reverse order
that they were removed.
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