Desa V)CD36RN - Manual (Page 12)

www.desatech.com 116035-01E 1
VENTING INSTALLATION
INSTRUCTIONS
Continued
WARNING: Do not recess
vent termination into any wall.
This will cause a fire hazard.
6.
Noncombustible Exterior Wall:
Position the
horizontal vent cap in the center of the 8 1 /
2
"
round hole and attach to the exterior wall with
four wood screws provided. Before attaching
the vent cap to exterior wall, run a bead of
non-hardening mastic (pliable sealant) around
the outside edges to make a seal between it and
the outside wall. Note: The four wood screws
provided should be replaced with appropriate
fasteners for stucco, brick, concrete or other
types of sidings (see Figure 13).
Combustible Exterior Wall:
For vinyl siding,
stucco or wood exteriors, a siding standoff
may be installed between the vent cap and
exterior wall. The siding standoff prevents
excessive heat from damaging the siding
materials. Siding material must be cut to
accommodate standoff. Bolt the vent cap to
the standoff. Apply non-hardening mastic
around outside edge of standoff. Position the
standoff/cap assembly in the center of the 10
3 /
4
" square hole and attach to exterior wall
with wood screws provided (see Figure 14).
The siding standoff must sit flush against the
exterior fascia material.
7.
Combustible Exterior Wall Only:
Fit the outer
and inner wall firestop into the wall before
connecting horizontal run to vent cap (see
Figure 15).
Figure 13 - Installing Horizontal Vent Cap
(Noncombustible Exterior)
Wood Screw
Vent Cap
Figure 14 - Installing Siding Standoff
(Combustible Exterior Wall)
Cut Siding Away
to Fit Standoff
Screws
Standoff
Vent
Cap
Apply Mastic
to All Four Sides
8. Carefully move fireplace, with vent assembly
attached, toward wall and insert vent pipe
into horizontal termination. The pipe overlap
should be a minimum of 1 1 /
4
".
9.
Combustible Exterior Wall Only:
Slide wall
firestop against interior wall surface and attach
with screws provided (see Figure 16, page
13). See Figure 17, page 13, for horizontal
termination details.
10. Place fireplace into position and shim with
noncombustible material, if needed. Nail or
screw side flanges to framing to secure unit in
place. IMPORTANT: Make sure fireplace is
level before securing. If fireplace is not level
it will not work properly.
NOTICE: Do not seal termination
cap to vent pipe. Cap must be
removable for vent inspection
and maintenance.
Figure 15 - Installing Outer Wall Firestop
(Combustible Exterior Wall)
Inner Wall
Firestop
Inner Wall
Firestop
Inner Wall
Firestop