Venting Installation instructions
Continued
CORNER INSTALLATION
Recommended Applications:
•Corner ground floor installation
•Ground floor installation where pipe vents horizon- tally through wall (over 12" horizontal pipe)
•Basement installation where one foot clearance from ground to termination is possible
Not to Exceed (H) Limits | 90° Elbow | |
| ||
Square | As Required | |
Termination | ||
for (V), See | ||
| ||
| Chart for | |
| Pipe Section | |
| Required | |
Wall |
| |
Firestop |
|
Not to Exceed
(H)Limits 90° Elbow 
Wall
Firestop
45° Elbow
Square Termination
12" Min.
45° Elbow |
| Required |
|
Vertical (V) | Vertical Pipe | Horizontal (H) |
*43 1/2" min. | None | 30" max. |
54 1/2" min. | 1 ft. | 48" max. |
66 1/2" min. | 2 ft. | 60" max. |
78 1/2" min. | 3 ft. | 84" max. |
90 1/2" min. | 4 ft. | 20' max. |
* Ground Floor Corner Venting
Figure 15 - Horizontal Termination Configuration for Corner Installation Using One
90° Elbow
SNORKEL TERMINATION INSTALLATION
Recommended Applications:
•Installations requiring a vertical rise on building exterior
•Any installation using snorkel termination to achieve one foot above ground
Snorkel terminations are available for installations requiring a vertical rise on the exterior of the build- ing. If installing snorkel termination below grade, you must provide proper drainage to prevent water from entering snorkel termination (see Figure 16).
Do not back fill around snorkel termination.
| Snorkel Termination | Wall |
| Firestop | |
|
| |
Snorkel Termination | 90° Elbow | |
12" |
Min. |
12" Min.
12" Min.
45° Elbow
Adequate
Drainage
Figure 16 - Snorkel Termination Configurations for Below Ground Installation
www.desatech.com | 13 |