Setting The Proper Combustion Levels - Garland MWE3W Service Manual

GARLAND CLAMSHELL GRILLS WITH PRODUCT RECOGNITION
INSTALLATION & STARTUP (continued)

Setting the Proper Combustion levels

In order to maintain proper combustion levels, the measurement of uA is not required. Using the following
procedure will ensure that the proper O
contact 1-800-446-8367.
1. Remove control panel and lower front panel. Set on
floor, leaving all connections in place.
2. The regulator comes set at 3.5" W.C (0.864 KPA) from
the factory. Verify pressure is consistent at 3.5".
3. Slightly loosen nut holding butterfly air shutter
adjuster on the combustion air blower connected to
the burner being adjusted just enough that it can be
rotated but will stay in place when force is removed.
4. From a cold start, turn
on the zone (burner)
and allow it to run
for 30 seconds to a
minute. Or with a
heated zone, place
a load on the grill
surface to keep the
burner operating for
a couple of minutes.
Adjust the air shutter
to reduce the air to the
point that the flame
on the burner begins
to lift and dance off of
the burner surface.
a. Mark a line along the
edge of the air shutter
from the hole along
the edge of the shutter
marking the position
of the shutter on the
side of the blower face.
b. If this condition
already exists, mark
the line at that
position and move to
the next step.
PART #4526396 (03/30/10)
, CO , & CO levels are reached. If you have any questions, please
2 2
5. Rotate the air shutter
open to the point that
the flame loses its
inner light blue cone
and becomes less
bright and the tip of
the flame elongates
and becomes about an
inch (25.4 mm) long.
Mark a line off the
edge of the shutter at
this position..
a. Or if air shutter is fully
open, mark the line at
that point.
6. Turn off burner (zone)
and measure the
distance between the
outside ends of the 2
line previously marked
and place another
mark in the center of
the 2 marks.
a. Add another mark
1/16" (1.6 mm) more
than the center mark.
b. Rotate the butterfly
shutter to this point,
and retighten.
SERVICE MANUAL
Page 17