Top Exit Horizontal Termination - Napoleon GD36NTR Installation And Operating Instructions Manual
Natural gas model/propane gas model
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- Installation and instruction manual (124 pages) ,
- Installation and operating instructions manual (52 pages) ,
- Installation and operation instructions manual (36 pages)
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16
2.8
TOP EXIT HORIZONTAL TERMINATION
Simple venting configuration
(only one 90° elbow)
For vent configurations requiring more than one 90° elbow, the following formulas apply:
Formula 1: H
< V
T
Formula 2: H
+ V
T
Example 1:
V
= 3 FT
1
V
= 8 FT
2
V
= V
+ V
= 3 + 8 = 11 FT
T
1
2
H
= 2.5 FT
1
H
= 2 FT
2
H
= H
+ H
= 2.5 + 2 = 4.5 FT
R
1
2
H
= .03 (three 90° elbows - 90°) = .03 (270° - 90°) = 5.4 FT
O
H
= H
+ H
= 4.5 + 5.4 = 9.9 FT
T
R
O
H
+ V
= 9.9 + 11 = 20.9 FT
T
T
Formula 1:
Formula 2:
Since both formulas are met, this vent configuration is acceptable.
W415-0210 / S /03.10.09
See graph to determine the required vertical rise V
FIGURE 2.8a
T
< 40 feet
T
H
< V
T
T
9.9 < 11
H
+ V
< 40 FT
T
T
20.9 < 40
(H
) < (V
)
T
T
40
39
30
REQUIRED
VERTICAL
20
RISE IN
FEET V
T
10
0
2.5
HORIZONTAL VENT RUN PLUS OFFSET IN
40
39
30
REQUIRED
VERTICAL
20
RISE IN
FEET V
T
10
0
2.5
HORIZONTAL VENT RUN PLUS OFFSET IN
The shaded area within the lines represents
FIGURE 2.8b
for the required horizontal run H
T
5
7.5
10
12.5
15
FEET H
T
5
7.5
10
12.5
15
FEET H
T
acceptable values for H
and V
T
90°
V
2
90°
H
90°
1
V
1
16.2
.
T
GD36
17.5
20
BGD36
17.5
20
T
H
2
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