18
Venting (Part I) continued-
TABLE 3
3” (7.6 cm) VENT CONNECTOR LENGTHS FROM INSIDE WALL FOR
LOW GROUND CLEARANCE INSTALLATIONS
Terminating
# of
Elbows
Max Straight
Length ft (m)
Min
straight
Length
ft (m)
48,65 gal.
(2) 90
°
Elbows with (1) 90
°
Elbow
1
40
(12.2)
5
(1.5)
(2) 90
°
Elbows with (1) 90
°
Elbow
2
35
(10.7)
5
(1.5)
(2) 90
°
Elbows with (1) 90
°
Elbow
3
30
(9.1)
5
(1.5)
(2) 90
°
Elbows with (1) 90
°
Elbow
4
25
(7.6)
5
(1.5)
TABLE 4
4” (10.2 cm) VENT CONNECTOR LENGTHS FROM INSIDE WALL FOR
LOW GROUND CLEARANCE INSTALLATIONS
Terminating (Reduce 4” to 3”)
(Reduce 10.1 cm to 7.6 cm)
# of
Elbows
Max straight
Length ft (m)
Min
straight
Length
ft (m)
48,65 gal.
(2) 90
°
Elbows with (1) 90
°
Elbow
1
160
(48.8)
10
(3.1)
(2) 90
°
Elbows with (1) 90
°
Elbow
2
155
(47.2)
10
(3.1)
(2) 90
°
Elbows with (1) 90
°
Elbow
3
150
(45.7)
10
(3.1)
(2) 90
°
Elbows with (1) 90
°
Elbow
4
145
(44.2)
10
(3.1)
(2) 90
°
Elbows with (1) 90
°
Elbow
5
140
(42.7)
10
(3.1)
HIGH ALTITUDE INSTALLATIONS FOR ELEVATIONS OVER 2,500
FEET (762 m) ABOVE SEA LEVEL
The capacit y of t he induced draf t blow er declines w it h increasing alt it ude
due t o a reduct ion in t he air densit y. In order t o assure saf e and reliable
perf ormance of t he w at er heat er, cont act t he supplier f or high alt it ude kit .
