Step 4. Install The Venting System - Lennox EDVSTNM-B Installation Instructions Manual

Securing Screws
(OUTSIDE of
Appli
ance)
Insulation
Cabinet Top
Firebox Top
(INSIDE of Appliance)
TOP VENT SEAL CAP REMOVAL
Figure 22 -
(TOP VENT INSTALLATIONS ONLY)
Insulation
CROSS SECTION
(INSIDE of
Appli
ance)
Side Vent
Cabinet Back
SIDE VENT SEAL CAP REMOVAL
Figure 23 -
(SIDE VENT INSTALLATIONS ONLY)
VENT RESTRICTOR INSTALLATION
A vent restrictor may be needed when vertically terminating the vent
system above the roof (when using the appliance top vent), install a vent
restrictor in the top vent of the fireplace outlet.
If needed, install the restrictor as shown, either from inside or outside the
unit, in the inner fireplace collar.
Restrictor
Inner
Fireplace
Collar
Top Shown - Rear Similar
Figure 24
Top Vent
Vent Seal Cap
CROSS SECTION
Vent Seal Cap
(OUTSIDE of
Appli
ance)
Securing Screws
Appliance
Vent Outlet
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Step 4. INSTALL THE VENT SYSTEM
General Information
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) in the
USA or the current standards of CAN/CSA-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'installation locaux et aux exigences
du foumisseunde gaz.
Use only approved venting 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 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. The restrictor is
installed in the appliance top flue outlet as shown in Figure 24, either
before adding vent, from above, or after installation of vent from below,
within the firebox. The restrictor is self securing through a positive
friction fit.
Determine the venting for the appliance. If the vent run will include at
least 8 feet of vertical rise, then install the restrictor in the appliance
collar before connecting any vent (Refer to Figure 24 ). Place the
restrictor inside the appliance vent collar and press in place.
Note: The restrictor is included within the firebox.
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 38 and 39.
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