35 |
|
|
|
| Restrictor |
|
|
| Fully Closed |
|
|
30 |
|
|
|
Height in Feet From Vent Collar | Restrictor |
|
|
| 2/3 Closed |
|
|
18 |
|
|
|
| Restrictor |
|
|
| 1/3 Closed |
|
|
10 |
|
|
|
9 | Restrictor |
|
|
MinimumHeight 7 | Open |
|
|
| Both | ||
|
| ||
Max.Two | 5/8 Vent |
| |
4/6 Vent |
|
| |
Elbows - |
|
| |
|
|
| |
90° or 45° |
|
|
|
| 7 | 10 | 12 |
Horizontal Run in Feet
Figure 12. Vent Window for vertical termination using 5/8 or 4/6 pipe.
Vertical Termination
The vent must terminate within the shaded area designated on the graphs in Figs. 12 and 13.
•Maximum Elbows - Two 90° or Two 45° (Do not count the first elbow off the vent collar.)
•Use the restrictor settings indicated in the graph as general guide. The specific characteristics of your installation may require different settings.
Horizontal Termination
The vent must terminate within the shaded area designated in Figs. 15 and 16. (Do not count the first elbow off the vent collar.)
•Max. Elbows - One 90° or one 45°.
•Use of 4/6 pipe requires a minimum 1 foot rise. Fig. 16.
35
Restrictor
Fully Closed
30 
Restrictor
2/3 Closed
18
FeetinCollarVent
Height FromRestrictor
1/3 Closed
10 |
|
9 |
|
7 | Restrictor |
| |
| Open |
Max.Two 45°
Elbows
5 | 10 | 12 |
Horizontal Run in Feet
Figure 13. Vent Window for offset vertical termination using 5/8 or 4/6 pipe.
Figure 14. Minimim centerline for horizontal termination of 4/6 pipe
52”
(990 mm)
10
