Desa VDVF36PN/PP Owner's Operation And Installation Manual page 11

VENTING INSTALLATION
Continued
Note: Horizontal runs of vent must be supported every three feet.
Use wall straps for this purpose.
Flexible vent pipe must be installed with spacer springs every
12". See Figure 16, page 10. All connections must be clamped
tightly and sealed with high temperature silicone sealant as speci-
fied in the second warning statement on page 9.
3. Attach vent pipe assembly to the fireplace. Set fireplace in
front of it's permanent location to insure minimum clearances.
Mark the wall for a 10" square hole (for noncombustible ma-
terial such as masonry block or concrete, a 7
hole is acceptable). See Figure 17. The center of the hole
should line up with the center-line of the horizontal rigid vent
pipe. Cut a 10"x10" (25.4cm x 25.4cm) square hole through
combustible exterior wall (7
noncombustible). Frame as necessary (see Figure 17).
4.
Noncombustible Exterior Wall:
ing mastic around the outside edge of the vent cap. Position the
vent cap in the center of the 7
the arrow on the vent cap pointing up. Attach the vent cap with
four wood screws provided (see Figure 18). Note : Replace the
wood screws with appropriate fasteners for stucco, brick, con-
crete, or other types of siding.
WARNING: Do not recess vent termination in to
any wall. This will cause a fire hazard.
Figure 17 - Vent Opening Requirements
Figure 18 - Installing Horizontal Vent Cap
(Noncombustible Exterior)
For more information, visit www.desatech.com
For more information, visit www.desatech.com
105706-01B
1 / " diameter
2
1 / " [19.1cm] diameter hole if
2
Apply a bead of non-harden-
1
/ " hole on the exterior wall with
2
Vent Cap
Wood Screw
VENTING INSTALLATION
Installation for Horizontal Termination (Cont.)
Combustible Exterior Wall:
exteriors, a siding standoff must be installed between the vent
cap and exterior wall. The siding standoff prevents excessive
heat from damaging siding materials. Siding materials must be
cut to accommodate standoff. Bolt the vent cap to the stand-
off. Apply non-hardening mastic around outside edge of the
standoff. Position the standoff/cap assembly in the center of
the 10" square hole and attach to exterior wall with wood screws
provided (see Figure 19). The siding standoff must sit flush
against the exterior fascia material.
5.
Combustible Exterior Wall Only:
firestop over the vent pipe before connecting the horizontal
run to the vent cap (see Figure 20).
6. Carefully move the fireplace with vent assembly attached to-
ward the wall and insert the vent pipe into the horizontal termi-
nation. The pipe overlap should be a minimum of 1
all vent pipe connections (except vent cap) with screws pro-
vided. Refer to Framing on pages 6 and 7 for instructions on
securing unit to framing or floor.
7.
Combustible Exterior Wall Only:
against the interior wall surface and attach with screws pro-
vided (see Figure 20).
Apply Mastic
to All Four Sides
Figure 19 - Installing Vinyl Siding Standoff (Combustible
Exterior Wall)
Vent Cap
(Horizontal
Termination)
Figure 20 - Connecting Vent Cap with Horizontal Vent Pipe
For vinyl siding, stucco, or wood
Slide the interior wall
1 / ". Fasten
4
Slide the wall firestop
Cut Vinyl Siding
Away to Fit Standoff
Standoff
Wood Screw
Vent Cap
Bolt
Interior Wall
Surface
Interior Wall Firestop
(Combustible
Exterior Wall Only)
Horizontal
Vent Pipe
Screw
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