Venting installation instructions, Continued – Desa CHDV42NRA User Manual
Page 11
111906-01C
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For more information, visit www.desatech.com
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11
Figure 15 - Horizontal Termination Configuration for Corner Installation Using One 90° Elbow
Square
Termination
Wall
Firestop
Not to Exceed
(H) Limits
As Required for (V)
See Chart for Pipe
Section Required
45°
Elbow
90° Elbow
90° Elbow
Square
Termination
Wall
Firestop
45° Elbow
12" Minimum
CORNER INSTALLATION
Recommended Applications:
• Corner ground floor installation
• Ground floor installation where pipe vents horizontally through wall
(over 12" horizontal pipe)
• Basement installation where one foot clearance from ground to
termination is possible
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 building. 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.
VENTING INSTALLATION
INSTRUCTIONS
Continued
VENTING INSTALLATION INSTRUCTIONS
Installation Planning (Cont.)
12"
Minimum
Snorkel
Termination
12"
Minimum
Snorkel
Termination
Wall
Firestop
90° Elbow
45°
Elbow
Figure 16 - Snorkel Termination Configurations for Below Ground Installation
Vertical (V)
Required
Horizontal (H)
Vertical Pipe
46
1
/
4
" min.
None
30" max.
57
1
/
4
" min.
1 ft.
48" max.
69
1
/
4
" min.
2 ft.
60" max.
81
1
/
4
" min.
3 ft.
84" max.
93
1
/
4
" min.
4 ft.
20' max.
Not to Exceed
(H) Limits
12"
Minimum
Snorkel
Termination
Adequate
Drainage