FULLY OPEN
4“ OPEN
2“ OPEN
1“ OPEN
10’
20’
30’
40’
48’
0
1
2
3
4
Figure 35: Restrictor position chart.
The vent restrictor is located on the underside of the firebox top. The unit
leaves the factory with the vent restrictor open. The restrictor is built into
the appliance for secondary air flow adjustment. Adjustment enables tun-
ing 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 (Figure 35) 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
Figure 36: Vent restrictor.
VENT RESTRICTOR
OPENING
23
TCWS.54CODE_041115-36
5055.5401-A
Vent Restrictor Adjustment
Содержание TCWS.54CODE
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