Napoleon Vittoria GD19N Installation And Operation Instructions Manual page 11

TOP EXIT / HORIZONTAL TERMINATION
Simple venting confi guration
(only one 90° elbow)
See graph to determine the required vertical rise V
required horizontal run H
150
REQUIRED
140
VERTICAL
RISE IN
130
INCHES V
T
120
110
100
90
80
70
60
50
40
30
20
10
HORIZONTAL VENT RUN PLUS OFFSET IN FEET H
The shaded area within the lines represents acceptable
values for H and V
T
For vent confi gurations requiring more than one 90° elbow
the following formulas apply:
Formula 1: H
T
Formula 2: H
T
FIGURE10
V
1
NorthlineExpress.com
(H ) > (V )
T T
FIGURE 9
.
T
0 5 10 15
.
T
< 4.2 V
T
+ V < 24.75 feet
T
H
1
90°
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Example 2:
V = V
= 6 ft
1 T
H
= 3 ft
1
H
= 5 ft
2
H = H + H
R 1
H
= .03(two 90° elbows - 90°) = .03(180° - 90°) = 2.7 ft
O
H = H + H
T R
H + V
= 10.7 + 6 =16.7
T T
H
Formula 1:
10.7 < 25.2
H
Formula 2:
16.7 < 24.75
Since both formulas are met, this vent configuration is
acceptable.
for the
T
Example 3:
V
1
V
= 4 ft
1
V
= 1.5 ft
2
V = V + V
T 1
H
= 2 ft
1
H
= 1 ft
2
H
20
= 1 ft
3
H
= 1.5 ft
T
4
H = H + H
R 1
H
= .03(four 90° elbows - 90°) = .03(360° - 90°) = 8.1 ft
O
H = H + H
T R
H + V
= 13.6 + 5.5 = 19.1 ft
T T
Formula 1: H
13.6 < 23.1
Formula 2: H
19.1 < 24.75
H
Since both formulas are met, this vent confi guration is
2
acceptable.
= 3 + 5 = 8 ft
2
= 8 + 2.7 = 10.7 ft
O
< 4.2 V
T T
4.2 V
= 4.2 x 6 = 25.2 ft
T
+ V < 24.75 feet
T T
90°
H
1
H
H
2
90°
FIGURE 11
= 4 + 1.5 = 5.5 ft
2
+ H + H
= 2 + 1 + 1 + 1. 5 = 5.5 ft
2 3 4
= 5.5 + 8.1 = 13.6 ft
O
< 4.2 V
T T
4.2 V
= 4.2 x 5.5 = 23.1 ft
T
+ V < 24.75 feet
T T
W415-0612 / C / 01.25.08
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11
H
4
V
2
3