Installation manual

www.desatech.com
118531-01C12
VENTING INSTALLATION
Continued
WARNING: Do not recess
  

6.    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 11
1
/
2
" square hole and attach to exte-
rior wall with wood screws provided (see
Figure 11). Siding standoff must sit ush
against exterior fascia material.
7. 
  Slide wall restop over vent
pipe before connecting horizontal run to
vent cap (see Figure 12).
Carefully move replace, with vent as-
sembly attached, toward wall and insert
vent pipe into horizontal termination. Pipe
overlap should be a minimum of 1
1
/
4
".
Slide wall restop against interior wall sur-
face and attach with screws provided.
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 12 - Installing Siding Standoff
(Combustible Exterior Wall)
Cut Siding Away
to Fit Standoff
Screws
Standoff
Vent
Cap
Apply Mastic
to All Four Sides
Figure 13 - Installing Outer Wall Firestop
(Combustible Exterior Wall)
Inner Wall
Firestop
Inner Wall
Firestop
Outer Wall
Firestop
NOTICE: Do not seal termination

   

WARNING: Never run vent
downward as this may cause
  

-
   

