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installation
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40
UNIT INSTALLATION WITH
HORIZONTAL
TERMINATION
4" X 6-5/8" OR 5" X 8"
VENTING
(Rigid Vent Systems)
Minimum Vent Clearances
to Combustibles
* Clearances noted below must be maintained;
except when passing through a wall, ceiling or at the
termination where the use of a firestop or wall thimble
reduces clearance to 1-1/2" (38mm).
Horizontal Top*
Horizontal Side
Horizontal Bottom
Vertical Vent
Below are the recommended framing
dimensions (inside measurements) for the
4" x 6-5/8" and 5" x 8" rigid vent terminations -
for use with a firestop or wall thimble.
Recommended Framed Opening Size
Vent Size
Framing Size
4" x 6 - 5/8"
10" x 10"
5" x 8"
11" x 11"
Install the vent system according to the
manufacturer's instructions included with the
components.
1) Set the unit in its desired location. Check to
determine if wall studs or roof rafters are in
the way when the venting system is attached.
If this is the case, you may want to adjust
the location of the unit. Rough in the gas
preferably on the right side of the unit and the
electrical (junction block is on the left side)
on the left.
2) Direct Vent pipe and fittings are designed with
special twist-lock connections to connect the
venting system to the appliance flue outlet.
A twist-lock appliance adaptor is required.
3) In conjunction with the Approved Vent system,
install the adaptor after the unit is set in its
desired location. Put a bead of Mill-Pac inside
the outer section of the adapter and on the
inner collar. Slip the adapter over the existing
inner and outer flue collar. Fasten to the outer
collar only with the 3 supplied screws (drilling
pilot holes will make this easier).
4) Level the fireplace and fasten it to the framing
using nails or screws through the top and
side nailing strips.
Diagram 1
40 |
Bellavista
®
B36XTCE-10 Gas Fireplace
5) Assemble the desired combination of pipe
and elbows to the appliance adaptor and
twist-lock for a solid connection.
Note: For best results and optimum
Horizontal runs of vent must be
2" (51mm)*
1-1/2 " (38mm)
1-1/2" (38mm)
1-1/2" (38mm)
6) Mark the wall for a square hole.-see chart
to left for size. The center of the square hole
should line up with the center-line of the
horizontal pipe. Cut and frame the square
hole in the exterior wall where the vent will
be terminated. See Diagram 2 for center line
requirements.
If the wall being penetrated is constructed of
non-combustible material, i.e. masonry block
or concrete, an 8" (203mm) diameter hole
is acceptable.
Note:
a) The horizontal run of vent must be level,
b) The location of the horizontal vent
performance with each approved
venting system, it is highly
recommended to apply "Mill-
Pac" sealant (supplied) to every
inner pipe connection. Failure to
do so may result in drafting or
performance issues not covered
under warranty.
supported every 3 feet (0.9meter).
Wall straps are available for this
purpose.
or have a 1/4 inch rise for every 1 foot
of run towards the termination. Never
allow the vent to run downward. This
could cause high temperatures and may
present the possibility of a fire.
termination on an exterior wall must meet
all local and national building codes, and
must not be blocked or obstructed. See
"Exterior Vent Termination Locations"
section for more details.
center
of hole
C L
C L
Diagram 2
7) Ensure that
the pipe clearances to
combustible materials are maintained
(Diagram 3). Install the termination cap.
Note: If installing termination on a
vinyl siding covered wall, a vinyl
siding standoff or furring strips
must be used to ensure that the
termination is not recessed into
the siding.
Diagram 3
The four wood screws provided should be re-
placed with appropriate fasteners for stucco,
brick, concrete, or other types of sidings.
8) Before connecting the horizontal run of vent
pipe to the vent termination, slide the Wall
Thimble over the vent pipe. The wall thimble
is required for all horizontal terminations.
9) Slide the appliance and vent assembly
towards the wall carefully inserting the vent
pipe into the vent cap assembly. It is important
that the vent pipe extends into the vent cap
sufficient distance so as to result in a minimum
pipe overlap of 1-1/4 inches (32mm). Secure
the connection between the vent pipe and
the vent cap.
10) Install wall thimble in the center of the framed
hole and attach with wood screws (Diagram
4).
Diagram 4
ASTROCAP # 946-523/P
DIMENSIONS
11"
(279mm)
11"
(279mm)
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