Using Rigid Vent Components - Napoleon GD33NR Installation And Operating Instructions Manual

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5. Remove nails from the shingles, above and to the sides
of the chimney. Place the flashing over the air terminal
connector leaving a min. 3/4" of the air terminal connector
showing above the top of the flashing. Slide the flashing
underneath the sides and upper edge of the shingles.
Ensure that the air terminal connector is properly centred
within the flashing, giving a 3/4" margin all around. Fasten
to the roof. Do not nail through the lower portion of the
flashing. Make weather-tight by sealing with caulking.
Where possible, cover the sides
flashing with roofing material. (Fig. 30)
6. Aligning the seams of the terminal and air terminal
connector, place the terminal over the air terminal
connector making sure the liner goes into the hole in
the terminal. Secure with the three screws provided.
(Fig. 30)
7. Apply a heavy bead of weatherproof caulking 2 inches
above the flashing. Note: Maintain a minimum 2" space
between the air inlet base and the storm collar. Install
the storm collar around the air terminal and slide down
to the caulking. Tighten to ensure that a weather-tight
seal between the air terminal and the collar is achieved.
(Fig. 30)
2"
STORM COLLAR
Spacers are attached to the inner flex liner at
predetermined intervals to maintain a 1-1/4" air gap to
the outer flex liner. These spacers must not be removed.
FIREPLACE VENT CONNECTION
1. Install the 4 inch diameter aluminium flexible liner to
the fireplace. Secure with 3 screws and flat washers. Seal
the joint and screw holes using the high temperature seal-
ant provided.
2. Install the 7 inch diameter aluminium flexible liner to
the fireplace. Attach and seal the joints.
W415-0341 / K / 10.05.07
and top edges of the
FIGURE 30
AIR INLET
BASE
CAULKING
WEATHER
SEALANT
FLASHING
USING RIGID VENT
COMPONENTS
For optimum performance, it is recommended that
horizontal runs have a minimum ¼ inch rise per foot
when using Simpson Dura-Vent, Selkirk Direct Temp,
American Metal Amerivent, or Wolf Steel rigid vent
components.
For safe and proper operation of the fireplace, follow
the venting instructions exactly.
The vent system must be supported approximately every 3
feet for both vertical and horizontal runs. Use Wolf Steel
vent spacers W615-0033 every 3 feet on either side of
each elbow to maintain the minimum 1¼" clearance
between the outer and inner vent pipes. Use Napoleon®
support ring assembly W010-0370 or equivalent
noncombustible strapping to maintain the minimum
clearance to combustibles for both vertical and horizontal
runs.
HORIZONTAL AIR TERMINAL INSTALLATION
1. Move the fireplace into position. Measure the vent length
required between terminal and fireplace taking into account
the additional length needed for the finished wall surface
and any 1¼" overlaps between venting components.
2. Apply high temperature sealant to the outer edge of the
4" inner collar of the fireplace. Attach the first vent compo-
nent and secure using 3 self tapping screws. Repeat using
7" piping.
3. Holding the air terminal (lettering in an upright, read-
able position), insert into both vent pipes with a twisting
motion to ensure that both the terminal sleeves engage
into the vent pipes and the sealant. Secure the terminal to
the exterior wall and make weather tight by sealing with
caulking (not supplied).
The air terminal mounting plate may be recessed into the
exterior wall or siding by 1½", the depth of the return
flange.
FIGURE 31