Superior DRL3042TEN Installation And Operation Instructions Manual page 21

Innovative Hearth Products
Superior™ DRL3000 Linear Direct-Vent Gas Fireplaces
Figure 11: When to use a vent restrictor
Base Position 1
15 ft Maximum
45
10
6
5
4
3
1
Horizontal Distance (ft)
2 4.5
* 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 15), 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 4 ft through an exterior wall, no vent restrictor is required.
If installing more than 4 ft of vertical venting, install the restrictor (Figure 15), 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
Connecting the vent pipe
Secure Vent
(Figure 17 and Figure 18). All of the fireplaces covered in this document are fitted with collars having locking inclined channels. The
dimpled end of the vent components fit over the fireplace/vent collar to create the positive twist lock connection.
Position 2
horizontal run
6 7.5 9 15
Model
SV4.5L6
SV4.5L12
SV4.5L24
SV4.5L36
SV4.5L48
SV4.5 direct-vent system components are unitized concentric pipe components featuring positive twist lock connections
®
Figure 12: Vent restrictor installation, Top vent
U-Shaped
*
60 ft Maximum vertical run
60
Restrictor
Inner
40
Fireplace
Collar
Appliance Top Vent Outlet
Figure 13: 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
900079-02 05/2015
21