D. Vent Diagrams
WARNING
Fire Risk. Explosion Risk.
Do NOT pack insulation or other combustibles between ceiling firestops.
•ALWAYS maintain specified clearances around venting and firestop systems.
•Install wall shield and ceiling firestops as specified.
Failure to keep insulation or other material away from vent pipe may cause fire.
1. Top Vent - Horizontal Termination
One Elbow
V1
H1
Figure 5.3
| V1 Minimum | H1 Maximum | |||||
1/2 ft | 152 mm | 2 ft |
| 610 mm | |||
| 1 ft | 305 mm | 2 ft |
| 610 mm | ||
| 2 ft | 610 mm | 5 ft |
| 1.5 m | ||
| 3 ft | 914 mm | 8 ft |
| 2.4 m | ||
| 4 ft |
| 1.2 m | 11 ft |
| 3.4 m | |
| 5 ft |
| 1.5 m | 14 ft |
| 4.3 m | |
| 6 ft |
| 1.8 m | 17 ft |
| 5.2 m | |
| 7 ft |
| 2.1 m | 20 ft |
| 6.1 m | |
| 8 ft |
| 2.4 m | 23 ft |
| 7.0 m | |
| V1 = 40 ft. (12.2 m) Maximum | ||||||
| H1 | = 23 ft. (7.0 m) Maximum | |||||
| V1 + H1 = 63 ft. (19.2 m) Maximum | ||||||
Note: Must have | Minimal Vertical Vent | ||||||
a minimum verti- | Model |
| ft. | mm | |||
cal vent before |
| ||||||
1/2 | 152 | ||||||
attaching a 90º | |||||||
elbow to the unit. | 1 | 305 | |||||
See chart. |
|
|
|
|
|
Two Elbows
H2
| V1 Minimum | H1 Maximum | |||
1/2 ft | 152 mm | 2 ft | 610 mm | ||
| 1 ft | 305 mm | 2 ft | 610 mm | |
| 2 ft | 610 mm | 5 ft | 1.5 m | |
| 3 ft | 914 mm | 8 ft | 2.4 m | |
| 4 ft | 1.2 m | 11 ft | 3.4 m | |
| 5 ft | 1.5 m | 14 ft | 4.3 m | |
| 6 ft | 1.8 m | 17 ft | 5.2 m | |
V1 | 7 ft | 2.1 m | 20 ft | 6.1 m | |
8 ft | 2.4 m | 23 ft | 7.0 m | ||
H1 | |||||
V1 + H1 | + H2= 63 ft. (19.2 m) Maximum | ||||
| |||||
| H1 + H2 = 23 ft. (7.0 m) Maximum |
INSTALLED | Note: Must have | Minimal Vertical Vent | ||
HORIZONTALLY | ||||
| a minimum verti- | Model | ft. | mm |
| cal vent before | |||
| 1/2 | 152 | ||
| attaching a 90º | |||
| elbow to the unit. | 1 | 305 | |
| See chart. |
|
|
|
Figure 5.4
16 | Heat & Glo • |