20306750
23
Designer Series Direct Vent Gas Fireplace
•
The maximum number of 45° elbows permitted per side
wall installation is two (2). These elbows can be installed
in either the vertical or horizontal run.
•
For each 45° elbow installed in the horizontal run, the
length of the horizontal run MUST be reduced by 18"
(457 mm). This does not apply if the 45° elbows are
installed on the vertical part of the vent system.
•
The maximum number of elbow degrees in a system is
270°.
Figure 24
FP2838
max vent run
Figure 28 -
Maximum Vent Run with Elbows
FP2838
A + B = 17' Maximum
Horizontal 90° Elbow =
3' Reduction
7'6"
10'
7'
A
B
1
2
3
4
1
2
3
4
FP2307
max elbows
Figure 29 -
Maximum Elbow Usage
1 + 2 + 3 + 4 = 270°
FP2307
HORIZONTAL WITH VERTICAL RISE
(THROUGH-THE-WALL) APPLICATIONS
1. Locate and cut the vent opening in the wall. For
combustible walls first frame in opening.
Combustible Interior Walls:
Cut a 12
1
⁄
2
"H x 10
1
⁄
2
" W
hole through the interior wall.
Combustible Exterior Walls:
Cut a 10
1
⁄
2
"H x 10
1
⁄
2
"W
square hole through the exterior wall frame.
Figure 25
Noncombustible Walls:
Hole opening should be 8
1
⁄
2
"
(216 mm) in diameter.
2. The center of the hole should line up with the center line
of the horizontal rigid vent pipe end. Allow 1/4" minimum
rise per foot.
Figure 30
NOTE: #1222DA reducer must be used when 4 x 6
5
⁄
8
"
venting is preferred. #7TDVP58 reducer must be used
with 4" x 7" venting is preferred. Reducer must be
installed directly onto unit at the firepalce collar before
vertical rise.
W
ARNING
You may use a reducer from 5" x 8" to
4" x 6
5
⁄
8
" or 4" x 7" for horizontal with
vertical rise applications. ONLY use
framing instructions below when using
4" x 6
5
⁄
8
" or 4" x 7" venting.
If the reducer is installed at the rear of the
unit, you must immediately follow with a 90
elbow for a vertical rise before continuing
with any horizontal run. There is a minimum
total height of 7 feet from the fireplace floor
to the last section of pipe before horizontal
run. Refer to graph on Page 19.
VO584-100
Vent Opening
2/99 djt
Vent Opening for Combustible Walls
10
1
⁄
2
”
(267 mm)
Min.
Fireplace Hearth
Framing Detail
Opening for Noncombustible Wall
8Z\x
”
(216 mm)
Fireplace Hearth
FP2293
Figure 30 -
Locate vent opening on wall
10Z\x”
(267 mm) Min.
VENTING INSTALLATION
