Desa CD36RN - Page 13

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116035-01J 13
VENTING INSTALLATION
Continued
WARNING: Do not recess
  

6.  Position
horizontal vent cap in center of 8
1
/
2
" round
hole and attach to exterior wall with four
wood screws provided. Before attaching
vent cap to exterior wall, run a bead of
non-hardening mastic (pliable sealant)
around outside edges to make a seal
between it and outside wall.
Note: Four wood screws provided should
be replaced with appropriate fasteners for
stucco, brick, concrete or other types of
sidings (see Figure 13).
   For vinyl
siding, stucco or wood exteriors, a siding
standoff may be installed between vent
cap and exterior wall. Siding standoff
prevents excessive heat from damaging
siding materials. Siding material must be
cut to accommodate standoff. Bolt vent
cap to standoff. Apply non-hardening
mastic around outside edge of standoff.
Position standoff/cap assembly in center
of the 11
1
/
2
" square hole and attach to
exterior wall with wood screws provided
(see Figure 14). Siding standoff must sit
ush against exterior fascia material.
7.  
 Fit outer and inner wall restop
into wall before connecting horizontal run
to vent cap (see Figure 15).
Carefully move replace, with vent assem-
bly attached, toward wall and insert vent
pipe into horizontal termination. The pipe
overlap should be a minimum of 1
1
/
4
".
Slide wall restop against interior wall sur-
face and attach with screws provided (see
Figure 16, page 14). See Figure 17, page
14, for horizontal termination details.
Place replace into position and shim with
noncombustible material, if needed. Nail
or screw side anges to framing to secure
unit in place. IMPORTANT: Make sure re-
place is level before securing. If replace
is not level it will not work properly.
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
Figure 15 - Installing Outer Wall Firestop
(Combustible Exterior Wall)
Inner Wall
Firestop
Inner Wall
Firestop
Outer Wall
Firestop
Apply Mastic to
All Four Sides