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SUPERIOR
Step 3. PREPARING APPLIANCE VENT
COLLAR (
with combined top/rear vent)
Each of the unit's two vent collars are sealed
with a cover plate and a seal plate and
gasket. The cover, and seal plate and gasket
must be removed from the vent collar being
used. Refer to Figure 15 for top vent usage
and Figure 16 for rear, and the following
steps to prepare the appropriate collar
for use.
From the vent collar being used, remove the
four screws securing the vent seal plate and
gasket. Remove and discard the seal plate and
gasket.
When the top vent collar is being used,
from inside the firebox, loosen the two
screws in the keyhole slots of the cover plate
and remove the remaining two cover plate
securing screws. Remove and discard the
cover plate. Reinstall and securely tighten
all four screws.
When the rear vent collar is being used,
from inside the firebox, remove the two
screws securing the lintel to the rear wall of
f i r e - p a r t s . c o m
the firebox, then remove the lintel. Remove
the four cover plate securing screws. Remove
and discard the cover plate.
Reinstall and securely tighten all four cover
plate screws. Re-secure the lintel to the rear
wall of the firebox.
WARNING
Failure to reinstall and securely
tighten cover plate screws could
result in leakage of flue products
into the living space. Vent cover
plate and vent seal cap must
remain securely installed on
unused vent collar. Failure to
do so could result in leakage of
flue products into living space.
Step 4. INSTALLING VENT SYSTEM
These instructions should be used as a
guideline and do not supersede local
codes in any way. Install venting according
to local codes, these instructions,
the current National Fuel Gas Code
(ANSI-Z223.1-2009) in the USA or the
current standards of CAN/CGA-B149.1
in Canada.
Ensure clearances are in accordance
with local installation codes and the
requirements of the gas supplier.
Dégagement conforme aux codes
d'installa tion locaux et aux exigences du
foumisseunde gaz.
• DIRECT-VENT GAS FIREPLACES (SDV35-N-2) • INSTALLATION INSTRUCTIONS
®
Use only approved vent components (see
Approved Vent Components on Page 2).
These fireplaces must be vented
directly to the outside.
The vent system may not service multiple
appliances, and must never be connected to
a flue serving a separate solid fuel burning
appliance. The vent pipe is tested to be run
inside an enclosed wall (such as a chase).
There is no requirement for inspection
openings in the enclosing wall at any of the
joints in the vent pipe.
Installation of Vent Restrictor
A vent restrictor may be needed with this
appliance, install vent restrictor (provided)
in the appliance top flue outlet as shown in
Figure 17 or rear flue outlet as shown in
Figure 18. It is held in place by friction, only.
Note: The vent restrictor is included in the
firebox.
TOP VENT SEAL AND COVER PLATE REMOVAL
WHEN USING THE TOP VENT
(OUTSIDE UNIT)
GASKET
CABINET TOP
TOP VENT
FIREBOX TOP
VENT
COVER PLATE
(INSIDE UNIT)
CROSS SECTION
Figure 15: Top vent seal and cover
plate removal—models with
combined top and rear vents
REAR VENT SEAL AND COVER PLATE REMOVAL
WHEN USING THE REAR VENT
COVER PLATE
SECURING SCREWS
REAR VENT
(INSIDE UNIT)
CROSS SECTION
Figure 16: Rear vent seal and
cover plate removal—models with
combined top and rear vents
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Select Venting System—Horizontal or
Vertical
With the appliance secured in framing,
determine vent routing and identify the
exterior termination location. The following
sections describe vertical (roof) and horizontal
(exterior wall) vent applications. Refer to the
section relating to your installation. A list of
approved venting components are shown on
Pages 33 and 34.
vertically terminating the vent system above
the roof (when using the appliance top vent),
install vent restrictor in the top vent of the
If needed, install the restrictor orientated as
shown, either from inside or outside the unit,
U-SHAPED VENT
RESTRICTOR
KNOCKOUT
FIREPLACE
Figure 17: Vent Restrictor
Installation—Top Vent
COVER PLATE
SECURING SCREWS
horzontally terminating the vent system from
appliance rear vent), install vent restrictor in
If needed, install the restrictor orientated as
KNOCKOUT
shown, either from inside or outside the unit,
CAP AND
GASKET
CABINET BACK
(OUTSIDE UNIT)
Figure 18: Vent Restrictor
Installation—Rear Vent
A vent restrictor may be needed when
fireplace outlet.
in the inner fireplace collar.
INNER
COLLAR
APPLIANCE TOP
VENT OUTLET
A vent restrictor may be needed when
the rear of the appliance (when using the
the rear vent of the fireplace outlet, in any
installation that has a vertical vent run in
excess of three feet (0.914 meters).
in the inner fireplace collar.
INNER FIREPLACE
APPLIANCE REAR
COLLAR
VENT OUTLET
U-SHAPED VENT
RESTRICTOR
13
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