Horizontal Termination - Napoleon BHD4P Installation And Operating Instructions Manual

16
3.9

HORIZONTAL TERMINATION

EN
90°
Simple venting confi guration (only one 45° and 90° elbow)
H
4
V
2
90°
For vent confi gurations requiring more than one 45° elbow and 90° elbow, the following formulas
apply:
45°
Formula 1: H
H
1
Formula 2: H
90°
H
4
3
V
Example:
2
V
= 8 FT (2.4m)
2
1
V = V
T 1
H
= 2.5 FT (0.8m)
1
H
= 2 FT (0.6m)
2
H = H
R 1
H
= .03 (one 45° elbow + two 90° elbows - 135°) = .03 (225 - 135°) = 2.7 FT (0.8m)
O
H = H
T R
H + V
T T
90°
Formula 1:
Formula 2:
Since both formulas are met, this vent confi guration is acceptable.
45°
H
1
W415-1285 / F / 12.21.16
H
2
V
1
< V
T T
+ V < 40 feet (12.2m)
90°
T T
= 8 FT (2.4m)
+ H
= 2.5 FT (0.8m) + 2 FT (0.6m) = 4.5 FT (1.4m)
2
+ H
= 4.5 FT (1.4m) + 2.7 FT (0.8m) = 7.2 FT (2.2m)
O
= 7.2 FT (2.2m) + 8 FT (2.4m) = 15.2 FT (4.6m)
H
2
H < V
T T
7.2 FT (2.2m) < 8 FT (2.4m)
H + V < 40 FT (12.2m)
T T
V
15.2 FT (4.6m) < 40 FT (12.2m)
1
90°
(H ) < (V )
T T
40 (12.2)
39 (11.9)
30 (9.1)
REQUIRED
VERTICAL RISE
VERTICAL
20 (6.1)
RISE IN FEET
(MILLIMETERS) V
(METERS) V
T
10 (3.1)
0
90°
90°
H HORIZONTAL VENT RUN PLUS OFFSET IN
90°
3
H
1 H
2
90°
V
1
45°
40 (12.2)
39 (11.9)
30 (9.1)
REQUIRED
VERTICAL
20 (6.1)
RISE IN FEET
(METERS) V
T
10 (3.1)
0
HORIZONTAL VENT RUN PLUS
OFFSET IN FEET (METERS) H
See graph to determine the required vertical
rise V for the required horizontal run H
150 (3810)
T
147 (3733.8)
REQUIRED
100 (2540)
IN INCHES
T
57 (1447.8)
50 (1270)
2.5 5 7.5 10
(0.8) (1.5) (2.3) (3.1)
H
4
V
FEET (METERS) H
2
0
The shaded area within the lines represents
acceptable values for H HORIZONTAL VENT RUN PLUS
OFFSET IN FEET (METERS) H
90°
V
45°
H
0
1
2.5 5 7.5 10
(0.8) (1.5) (2.3) (3.1)
HORIZONTAL VENT RUN PLUS OFFSET IN
FEET (METERS) H
16.5A
5 10 15 20
(1.5) (3.1) (4.6) (6.1)
12.5
(3.8)
T
.
T
12.5 15 17.5 20
(3.8) (4.6) (5.3) (6.1)
5 T 15
10 20
(1.5) (4.6)
(3.1) (6.1)
12.5
(3.8)
and V
T T
T
H
2
1
12.5 15 17.5 20
90°
(3.8) (4.6) (5.3) (6.1)
T
R
(