5056.42562
CAUTION:
The vent restrictor must be fully
open when using the power vent
10'
48'
1
'
30'
0
'
2
'
3
'
4
'
20'
4" OPEN
FULLY OPEN
2" OPEN
Figure 43: Restrictor rise and run
chart.
Figure 44: Vent restrictor.
The vent restrictor is located on the underside of the firebox top. The unit
leaves the factory with the vent restrictor wide open. The restrictor is built into
the appliance for secondary air flow adjustment. Adjustment enables tuning the
airflow for optimum flame appearance and performance for a wide variety of
vent configurations.
Setting:
•
Determine the vent height.
•
Determine the vent horizontal length.
•
From the chart determine the restrictor position.
Refer to the chart in Figure 43 for the correct position of restrictor for the vent
configuration of your installation. Restrictor positions are based upon lab tests. The ideal
position may vary slightly with installation.
Restrictor position is too closed if the flame has the following characteristics:
•
Flame is excessively tall and lifting.
•
Flame lacks movement.
•
Flame soots.
Restrictor position is too open if the flame has the following characteristics:
•
Flame height is low.
•
Flame has excessive movement.
To adjust the restrictor:
•
Loosen the screw holding the restrictor.
•
Move the restrictor to its intended opening.
•
Re-tighten the screw.
WALL AND ROOF
TERMINATION
RESTRICTOR POSITION
VENT RESTRICTOR
OPENING
26
TC54D _111215-44
Vent Restrictor Adjustment
Содержание TC54D
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