Desa V)CD36RN - Manual (Page 15)

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SNORKEL TERMINATION INSTALLATION
Recommended Applications Models (V)CD36R
and (V)CD36T:
• Installations requiring vertical rise on building
exterior.
• Installation using snorkel termination to achieve
1 ft. above grade.
VENTING INSTALLATION INSTRUCTIONS
Continued
Figure 23 - Snorkel Termination Configuration For Below Ground Installation
HORIZONTAL VENT INSTALLATIONS
USING MULTIPLE 90° ELBOWS (V)CD36T
TOP VENT
The following configurations show the minimum
vertical rise requirements for a horizontal system
using two 90° elbows.
Figure 24 - Horizontal Termination Configuration For Venting Using Two 90° Elbows
(Model (V)CD36T)
venting with Two 90° Elbows
vertical (v)
Horizontal (H)+
Horizontal (H
2
)
7' Min. 10' Max
8' Min. 1' Max
9' Min. 14' Max
10' Min. 16' Max
11' Min. 18' Max
13' Min. 0' Max
Snorkel terminations are available for installations
requiring a vertical rise on the exterior of the build-
ing. If installing snorkel below grade
you must provide proper drainage to prevent water
from entering snorkel (see Figure 23, page 15). Do
not back fill around snorkel termination.
90°
Elbow
90°
Elbow
Snorkel
Termination
1"
Min.
1" Min.
Adequate
Drainage
Snorkel
Termination
Snorkel
Termination
90° Elbow
1" Min.
Wall
Firestop