Desa T32N-a SERIES - Manual (Page 10)

www.desatech.com 116646-01D 10
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 screws (see page 10). Note: The four wood
screws provided should be replaced with ap-
propriate fasteners for stucco, brick, concrete or
other types of sidings. 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.
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 stand-
off. 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 11). The siding standoff must sit flush
against the exterior fascia material.
7.
Combustible Exterior Wall Only:
Slide the wall
firestop over the vent pipe before connecting
horizontal run to vent cap (see Figure 12).
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
" (see Figure 13,
page 11).
9.
Combustible Exterior Wall Only:
Slide wall
firestop against interior wall surface and attach
with screws provided (see Figure 12). See
Figure 13, page 11, for horizontal termination
details.
VENTING INSTallaTION
INSTRUCTIONS
Continued
Figure 10 - Installing Horizontal Vent Cap
(Noncombustible Exterior)
Figure 11 - Installing Siding Standoff
(Combustible Exterior)
Wood
Screw
Vent
Cap
Cut Siding Away to
Fit Standoff
Wood Screw
Screws
Standoff
Vent Cap
Apply Mastic
to All Four Sides
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.
Vent Cap
(Horizontal
Termination)
Interior Wall
Surface
Wall
Firestop
Horizontal
Vent Pipe
Figure 12 - Connecting Vent Cap with
Horizontal Vent Pipe
Screw
Apply Mastic to
All Four Sides