Page 25
8 - Loosen two screws at the gas manifold support brackĆ
et.
9 - Pull on the left side of the gas manifold and follow with
tension to the right side. The manifold support bracket
will be free of the mounting screws on the vestibule
panel. Set the gas manifold/gas valve assembly aside.
Take care not to damage foam gaskets on each end of
the gas manifold.
10 - Using a 1/4 inch nut driver, remove the burner mountĆ
ing screws from underneath the burners.
11 - While supporting ignitor and sensor lines at the gromĆ
met, grasp burners and simultaneously pull burners
and grommet out of the burner box.
12 - Remove ignitor and sensor bracket assemblies from
burners using a 1/4 inch nut driver to remove two
screws from each bracket.
13 - Clean burner by running a vacuum with a soft brush atĆ
tachment over face of burners. Visually inspect inside of
burners and crossovers for any blockage caused by forĆ
eign matter. Remove any blockage.
14 - ReĆinstall ignitor and sensor bracket assemblies on
burners.
NOTE - Ignitor must be installed on the opposite side of
the burner from the metal button protrusions. Screws
which attached the ignitor bracket must be installed
from the same side as the ignitor and through the brackĆ
et to engage in the smaller holes located in the burner.
The correct burner orientation is with metal button proĆ
trusions always pointing up.
15 - Replace burner ignitor assembly back into burner box
so that grommet groove fits back into sheet metal
notch and makes a good seal. The burners sit on top of
the burner box flanges. Make certain that the screws
from the underneath the box pass through the larger
holes in the flange and engage in the smaller holes in
the burner. ReĆinstall the two screws.
16 - ReĆinstall the gas manifold/gas valve assembly by first
inserting the right hand side of the gas manifold into
the burner box. Swing left side of manifold into box
while engaging support bracket to vestibule panel
screws. Check that foam gaskets are providing a seal
around each end of the gas manifold. All gas orifices
should be engaged. If at this point the burners were
mounted in the wrong holes, this needs to be corĆ
rected. The saddle brackets on the gas manifold
should be flush with the front surfaces on the burner
box sides.
17 - Inspect the dual layered metal pieces at the front lip of
the cover. These pieces must sandwich around the
metal. ReĆinstall burner box cover.
18 - ReĆinstall the screws to secure the burner box cover.
Make sure screws are tight to ensure a leak tight burnĆ
er box. Tighten the two screws underneath the box.
Again, inspect the grommet to ensure a tight seal.
19 - Tighten the two screws holding the manifold bracket to
the vestibule panel.
20 - ReĆinstall the electrical connections to the gas valve.
Orange wire to M1 and yellow wire to C2.
21 - ReĆinstall the 2Ćpin ignitor plug at the burner box. ReĆ
install sensor line to ignition control spade connector.
22 - Reconnect gas line to gas valve.
23 - Replace lower access panel.
24 - Following lighting instructions and gas line connection
test procedures from installation manual.
25 - Replace upper access panel.
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