Desa CSDPBN - Manual (Page 13)

111739-01A
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INSTALLATION FOR HORIZONTAL
TERMINATION
Snorkel terminations are available for terminations requiring a
vertical rise on the exterior of the building (see Figures 24 and
25). Snorkel kit VKS-47-K is also available (see page 19). Fol-
low the same installation procedures used for standard horizon-
tal termination with the exception of the external wall firestop.
The snorkel termination does not require the use of the external
wall firestop. If installing the snorkel termination below grade
(basement applications), you must provide proper drainage to
prevent water from entering the snorkel termination (see Figure
25). Do not back fill around the snorkel termination.
2. Vent pipes and fittings have special twist-lock connections. As-
semble the desired combination of pipe and elbows to the appli-
ance adaptor with pipe seams oriented towards the wall or floor.
Twist-lock Procedure: The female ends of the pipes and fittings
have four locking lugs (indentations). These lugs will slide straight
into matching slots on the male ends of adjacent pipes and fit-
tings. (All connections must be sealed with high temperature sili-
cone sealant as specified in the second warning statement on page
12.) Push the pipe sections together and twist one section clock-
wise approximately one-quarter turn until the sections are fully
locked. See Figure 26.
Note: Horizontal runs of vent must be
supported every three feet. Use wall straps for this purpose.
VENTING INSTALLATION
Continued
WARNING: Do not recess vent terminal into a wall
or siding.
Figure 24 - Snorkel Termination
Snorkel
Figure 25 - Snorkel Termination with Drainage Pipe
12" Minimum
(30.5cm)
NOTICE: Treatment of firestops and construction of
the chase may vary from building type to building
type. These instructions are not substitutes for the
requirements of local building codes. You must fol-
low all local building codes.
Note: When installing in a chase, you should insulate the chase as you
would the outside walls of your home. This is especially important in
cold climates. Minimum air space clearance between vent pipes and
combustible materials and/or insulation is 1" (2.54 cm).
Installing Vent System in a Chase
A chase is a vertical box-like structure built to enclose venting that runs
along the outside of a building. A chase is not required for such venting.
Snorkel
Adequate
drainage
12" Minimum
(30.5cm)
Figure 26 - Vent Pipe Connections
Female
Locking Lugs
Male
Slots
Vent Pipe
VENTING INSTALLATION
Installation Planning (Cont.)
Installation for Horizontal Termination
1. Determine the route your horizontal venting will take. Note: The
location of the horizontal vent termination on the exterior wall
must meet all local and national building codes and must not be
blocked or obstructed.
CAUTION: Horizontally terminated venting con-
figurations require one foot of vertical rise from the 45°
elbow before any horizontal run can be made. Failure
to meet venting requirements may cause performance
problems and possible damage to the fireplace.