Superior DRC3035DEN - Page 22

Installation
900285-00 05/2015
Innovative Hearth Products
Superior
TM
DRT/C3000 Series Direct-Vent Gas Fireplaces
22
10.
Install the Vent Restrictor (if necessary)
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 Figure 13: Vent restrictor installation, Top vent
2 1/2”
Break-Away
1
3
20
40
6
10
40
25 ft Maximum
horizontal run (flat to near level)
60 ft Maximum vertical run
60
1.9
25
Horizontal Distance (ft)
Vertical Height (ft) from top of unit
Vertical Height (ft)
2
5
Elbow**
5 10
15
3” Base + wing3” Base
6 ft Minimum
vertical run
6 ft Minimum vertical run
None
*
*
U-Shaped Vent
Restrictor
Inner
Fireplace
Collar
Appliance Top Vent Outlet
U-SHAPED VENT
RESTRICTOR
APPLIANCE REAR
VENT OUTLET
INNER FIREPLACE
COLLAR
Inner Fireplace Collar Appliance Rear
Vent Outlet
U-Shaped Vent
Restrictor
Intake Air Baffle
Base Vent Restrictor
Base Vent Restrictor + Wing
With break-away
raised***
Figure 14: Vent restrictor installation, Rear vent
U-Shaped Vent
Restrictor
Inner
Fireplace
Collar
Appliance Top Vent Outlet
U-SHAPED VENT
RESTRICTOR
APPLIANCE REAR
VENT OUTLET
INNER FIREPLACE
COLLAR
Inner Fireplace Collar
Appliance Rear
Vent Outlet
U-Shaped V
ent
Restrictor
Intake Air Baffle
Base Vent Restrictor
Base Vent Restrictor + Wing
With break-away
raised***
Inner Fireplace Collar
Appliance Rear
Vent Outlet
U-Shaped Vent
Restrictor
Intake Air Baffle
Figure 15: Vent restrictor assembly
U-Shaped Vent
Restrictor
Inner
Fireplace
Collar
Appliance Top Vent Outlet
U-SHAPED VENT
RESTRICTOR
APPLIANCE REAR
VENT OUTLET
INNER FIREPLACE
COLLAR
Inner Fireplace Collar Appliance Rear
Vent Outlet
U-Shaped Vent
Restrictor
Intake Air Baffle
Base Vent Restrictor
Base Vent Restrictor + Wing
With break-away
raised***
Base Vent Restrictor
U-Shaped Vent
Restrictor
Inner
Fireplace
Collar
Appliance Top Vent Outlet
U-SHAPED VENT
RESTRICTOR
APPLIANCE REAR
VENT OUTLET
INNER FIREPLACE
COLLAR
Inner Fireplace Collar Appliance Rear
Vent Outlet
U-Shaped Vent
Restrictor
Intake Air Baffle
Base Vent Restrictor
Base Vent Restrictor + Wing
With break-away
raised***
Base Vent Restrictor + Wing
* For straight runs or runs with elbows as illustrated in Vertical Vent Figures/Tables starting on
Page 28
** No rise required.
*** On 33” Models, use the 3” base restrictor. Do not raise the break-away tab.
NOTE: When venting Rear Horizontal with slip collar and termination only, install base vent
restrictor with the breakaway portion raised.
With
break-away
raised***
***