20302381
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
VeNTING INSTaLLaTIoN
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
Z\x
"H x 10
Z\x
" W
hole through the interior wall.
Combustible exterior walls:
Cut a 10
Z\x
"H x 10
Z\x
"W
square hole through the exterior wall frame.
Figure 25
Noncombustible walls:
Hole opening should be 8
Z\x
"
(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
B\,
"
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
a
RNING
you may use a reducer from 5" x 8" to 4" x
6
B\,
" or 4" x 7" for horizontal with vertical rise
applications. oNLy use framing instructions
below when using 4" x 6
B\,
" 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
Z\x
”
(267 mm)
Min.
Fireplace Hearth
Framing Detail
opening for Noncombustible wall
8
Z\x
”
(216 mm)
Fireplace Hearth
FP2293
Figure 30 -
Locate vent opening on wall
10
Z\x
”
(267 mm) Min.