Superior DRT2033 Installation And Operation Instructions Manual page 19

Innovative Hearth Products
Superior™ DRT2000 and DRC2000 Direct-Vent Gas Fireplaces
Install the Vent Restrictor (if necessary)
8.
1. Use the vent run descriptions in Figure 12 to determine if a vent restrictor is necessary.
2. If necessary, assemble the vent restrictor and wing as detailed in Figure 12 and Figure 15.
3. If necessary, install the appropriate vent restrictor (Figure 13 and Figure 14).
NOTE: If installing the vent restrictor in a rear vent application, ensure the factory-installed intake air baffle is in place (Figure 14).
NOTE: The vent restrictor is shipped in the firebox.
Figure 12: When to use a vent restrictor
None Base
25 ft Maximum
horizontal run
40
20
5
3
2
1
Elbow
Horizontal Distance (ft)
1.9 5
* For straight runs or runs with elbows as illustrated in Vertical Vent Figures/Tables starting on
Page 25.
Vent Restrictor with Vertical Terminations
When vertically terminating the vent system through the roof and using the vent restrictor, install the vent restrictor
in the top vent of the fireplace outlet.
If installing more than 6 ft of vertical venting, install the restrictor (Figure 13), from inside or outside the unit, in the
inner fireplace collar. The vent restrictor is held in place by friction.
Base + wing
60 ft Maximum vertical run
15
10 25
Figure 13: Vent restrictor installation, Top vent
U-Shaped Vent
*
Restrictor
60
40
Inner
Fireplace
Collar
Figure 14: Vent restrictor installation, Rear vent
20
Inner Fireplace Collar
INNER FIREPLACE
6
Intake Air Baffle
6 ft Minimum
vertical run
*
Figure 15: Vent restrictor assembly
900004-00, 04/2014
Appliance Top Vent Outlet
Appliance Rear
APPLIANCE REAR
Vent Outlet
COLLAR
VENT OUTLET
U-Shaped Vent
U-SHAPED VENT
Restrictor
RESTRICTOR
Base Vent Restrictor
Base Vent Restrictor + Wing
Installation
19