Superior DRL6542TEN Installation And Operation Instructions Manual page 21

Innovative Hearth Products
Superior DRL6000 Series Direct-Vent Gas Fireplaces
TM
Figure 15: When to use a vent restrictor
Base Position 1
40
20
13 1/2
10
6 1/2
3.3
1
2
* For straight runs or runs with elbows as illustrated in Vertical Vent Figures/Tables starting on Page 27.
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 16), from inside or outside the unit, in the
inner fireplace collar. The vent restrictor is held in place by friction.
Vent Restrictor with Horizontal Terminations
When horizontally terminating a vent system with a vertical vent run up to 6 ft through an exterior wall, no vent restrictor is required.
If installing more than 6 ft of vertical venting, install the restrictor (Figure 16), from inside or outside the unit, in the
inner fireplace collar. The vent restrictor is held in place by friction.
Table 16: Effective Vent Length
Position 2
20 ft Maximum
horizontal run
Horizontal Distance (ft)
15
5 10 20
Model
SV4.5L6
SV4.5L12
SV4.5L24
SV4.5L36
SV4.5L48
Figure 16: Vent restrictor installation, Top vent
U-Shaped
*
60 ft Maximum vertical run
60
Restrictor
40
Inner
Fireplace
Collar
Appliance Top Vent Outlet
Figure 17: Vent restrictor assembly
10
6
6 ft Minimum
vertical run *
Effective Length
4 1/2"
10 1/2"
22 1/2"
34 1/2"
46 1/2"
Vent
Vent
Collar
Vent
Restrictor
(held in
place by
friction)
Base Vent Restrictor
Vent Restrictor Position 1
Vent Restrictor Position 2
Installation
900077-00, 03/2014
21