1. Home
  2. Majestic
  3. Majestic BLDV400NSCSL User Manual
  4. Page 16

User Manual - Page 16

For BLDV400NSCSL.

Loading ...
Loading ...
Loading ...
20306741
16
BLDV7 Series Gas Fireplace
VENTING INSTALLATION
VERTICAL SIDEWALL APPLICATION
Minimum clearance between vent pipes and combus-
tible materials is 3" (76 mm) on top, and 1" (25 mm) on
the bottom and sides unless otherwise noted. Refer
to Page 15
When vent termination exits through foundations less
than 20” (508 mm) below siding outcrop, the vent pipe
mustushupwiththesiding.
Itisbesttolocatethereplaceinsuchawaythatminimiz-
esthenumberofoffsetsandhorizontalventlength.
Thehorizontalventrunreferstothetotallengthofvent
pipefromtheuecollarofthereplace(orthetopofthe
Transition Elbow) to the face of the outer wall.
Horizontalplanemeansnoverticalriseexistsonthispor-
tion of the vent assembly.
• The maximum number of 90° elbows per side wall in-
stallation is three (3). Figure 12
• If the min. 12" risewith a90° elbowis tted directly
ontopoftherst12"section,themaximumhorizontal
vent run before the termination or a vertical rise is 36”
(914 mm). Figure 13
• Ifa90°elbowisusedinthehorizontalventrun(lev-
elheightmaintained)thehorizontalventlengthisre-
duced by 36” (914 mm). Figures 13 & 14. This does
not apply if the 90° elbows are used to increase or
redirect a vertical rise. Figure 12
3 x 90°
Elbows
FP1176
Figure 12 -
Maximum Three (3) 90°
Elbows per Installation
Example: According to the vent graph (Page 15) the
maximumhorizontalventlengthinasystemwitha71/2’
(2.3 m) rise is 20’ (6 m) and if a 90° elbow is required in
thehorizontalventitmustbereducedto17’(5.2m).
In Figure 15, dimension A plus B must not be greater than
17’ (5.2 m)
• The maximum number of 45° elbows permitted per in-
stallation is six (6). 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 15
Example: Elbow 1 = 90°
Elbow 2 = 45°
Elbow 3 = 45°
Elbow 4 = 90°
Total angular variation = 270°
Max 20"
Max 20"
36"
(914mm)
Max.
36"
(914mm)
Max.
FP1177
Figure 13 -
Maximum Horizontal Run with 12" Minimum Rise
1
2
3
4
1
2
3
4
1 + 2 + 3 + 4 = 270°
Figure 15 -
Maximum Elbow Usage
FP1180
7'6"
(2.3m)
A
B
A + B = 17' (Max.)
(5.2m)
Figure 14 -
Horizontal Run Reduction
FP1178
90°
Fireplace
Collar
12" (305 mm)
Section Minimum
12" (305 mm)
Section
Minimum
12" (305 mm)
Section Minimum
Loading ...
Loading ...
Loading ...