Table of Contents
Advertisement
installation
Unit Installation with Vertical
Termination - 5" x 8" Venting
(Rigid Vent Systems)
Must use rigid pipe adaptor #770-994
*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).
1. Maintain the 2" clearances (air spaces) to
combustibles when passing through ceilings,
walls, roofs, enclosures,
attic rafter, or other nearby
combustible surfaces.
Do not pack air spaces
with insulation. Check
"Venting" Sections for the
maximum vertical rise of
the venting system and
the maximum horizontal
offset limitations.
2. Set the gas appliance in
its desired location. Drop
a plumb bob down from
the ceiling to the position
of the appliance flue exit,
and mark the location
Diagram 1
where the vent will pen-
etrate the ceiling. Drill a
small hole at this point. Next, drop a plumb
bob from the roof to the hole previously
drilled in the ceiling, and mark the spot
where the vent will penetrate the roof.
3. A Firestop spacer must be installed in the
floor or ceiling of every level. To install the
Firestop spacer in a flat ceiling or wall, cut
a 11 inch square hole. Frame the hole as
shown in Diagram 2 and install the firestop.
4. Assemble the desired lengths of pipe and
elbows. Ensure that all pipes and elbow
connections are in the fully twist-locked
position and sealed.
Note: All vertical terminations are vented
using 5" x 8" venting and rigid pipe adap-
tor #770-994.
11"(279mm)
square hole
framing
firestop
spacer
Diagram 2
|
44
Regency Bellavista
®
5. Cut a hole in the roof centered on the small
drilled hole placed in the roof in Step 2. The
hole should be of sufficient size to meet
the minimum requirements for clearance to
combustibles of 2". Slip the flashing under
the shingles (shingles should overlap half
the flashing) as per Diagram 3.
NOTE: For best results and optimum perfor-
mance with each approved venting system,
it is highly recommended to apply "Mill-Pac"
sealant (supplied) to every inner pipe connec-
tion. Failure to do so may result in drafting
or performance issues not covered under
warranty.
6. Continue to assemble pipe lengths.
Note: If an offset is necessary in the
attic to avoid obstructions, it
is important to support the
vent pipe every 3 feet, to avoid
excessive stress on the elbows,
and possible separation. Wall
straps are available for this
purpose.
Diagram 3: The upper half of the flashing is in-
stalled under the roofing material and not nailed
down until the chimney is installed. This allows
for small adjustments.
Galvanized pipe is desirable above the roofline
due to its higher corrosion resistance. Continue
to add pipe sections through the flashing until
the height of the vent cap meets the minimum
height requirements specified in Diagram 4 or
local codes. Note that for steep roof pitches,
the vertical height must be increased. A poor
draft, or down drafting can result from high
wind conditions near big trees or adjoining
roof lines, in these cases, increasing the
vent height may solve the problem.
7. Ensure vent is vertical and secure the base
of the flashing to the roof with roofing rails,
slide storm collar over the pipe section and
seal with a mastic.
8. Install the vertical termination cap by twist-
locking it.
Note: Any closets or storage spaces,
B41XTE -11 Gas Fireplace
which the vent passes through must
be enclosed.
Diagram 4
Minimum Vent
Height
Roof Pitch
Feet
flat to 7/12
2
over 7/12 to 8/12
2
over 8/12 to 9/12
2
over 9/12 to 10/12
2.5
over 10/12 to 11/12
3.25
over 11/12 to 12/12
4
over 12/12 to 14/12
5
over 14/12 to 16/12
6
over 16/12 to 18/12
7
over 18/12 to 20/12
7.5
over 20/12 to 21/12
8
Gas Line Installation
The gas line is brought through the right side of
the appliance. The gas valve is situated on the
right hand side of the unit and the gas inlet is
on the right hand side of the valve.
The gas line connection may be made of rigid
pipe, copper pipe or an approved flex connector.
(If you are using rigid pipe, ensure that the valve
can be removed for servicing.) Since some
municipalities have additional local codes it is
always best to consult with your local authorities
and the CAN/CGA B149 installation code.
For USA installations follow local codes and/
or the current National Fuel Gas Code, ANSI
Z223.1.
When using copper or flex connectors use only
approved fittings. Always provide a union so that
gas lines can be easily disconnected for servicing.
Flare nuts for copper lines and flex connectors
are usually considered to meet this requirement.
Important: Always check for gas leaks with a
soap and water solution or gas leak detector.
Do not use open flame for leak testing.
Meters
0.61
0.61
0.61
0.76
0.99
1.22
1.52
1.83
2.13
2.29
2.44
Advertisement
Table of Contents
