Desa SDVBND Owner's Operation And Installation Manual page 13

VENTING INSTALLATION
Continued
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.
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".
INSTALLATION FOR HORIZONTAL
TERMINATION
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.
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.
WARNING: Do not recess vent terminal into a wall
or siding.
Snorkel terminations are available for terminations requiring a
vertical rise on the exterior of the building (see Figures 21 and
22). 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
22). 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:
have four locking lugs (indentations). These lugs will slide straight
into matching slots on the male ends of adjacent pipes and fittings.
(All connections must be sealed with high temperature silicone
sealant as specified in the second warning statement on page 12.)
Push the pipe sections together and twist one section clockwise
approximately one-quarter turn until the sections are fully locked.
See Figure 23. Note: Horizontal runs of vent must be supported
every three feet. Use wall straps for this purpose.
For more information, visit www.desatech.com
For more information, visit www.desatech.com
112126-01B
The female ends of the pipes and fittings
Installation for Horizontal Termination
Figure 21 - Snorkel Termination
°
Figure 22 - Snorkel Termination with Drainage Pipe
Female
Locking Lugs
Figure 23 - Vent Pipe Connections
VENTING INSTALLATION
Installation Planning (Cont.)
Snorkel
12" Minimum
(30.5cm)
Snorkel
12" Minimum
(30.5cm)
Adequate
drainage
Male
Slots
Vent Pipe
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