Installation / Operation Instruction Manual

12
Venting continued-
Table 3 lists the venting distances allowed with 4 in (10.2 cm) diameter vent
pipe. When venting with 4” (10.2 cm) vent pipe, use a 4 in (10.2 cm) to 2 in
(5.1 cm) reducer to exit through the building wall with 2 in (5.1 cm) vent pipe.
Use the 2 in (5.1 cm) vent terminal supplied with the water heater to terminate
on the outside of the building. If the length of 2 in (5.1 cm) vent pipe needed to
go through the wall is greater than 14 in (35.5 cm), use 4 in (10.2 cm) to go
through the wall and reduce to 2 in (5.1 cm) vent pipe immediately after exiting
the outside wall. Refer to the venting illustrations on the following pages. Make
sure the vent pipe terminal elbow fitting is at least 1 in (2.5 cm) away from the
edge of the wall.
TABLE 1 - VENT CONNECTOR LENGTHS
FOR 2 in (5.1 cm) DIAMETER VENT PIPE
Terminating
# of
Elbows
(excl. vent
terminals)
Minimum
Straight
Length ft
(m)
Maximum
Straight
Length
ft (m)
Elevation of installation
above sea level ft (m)
0-10100
(0-3079)
0-5400
(0-1646)
5401-7800
(1646-2378)
7801-10100
(2378-3079)
Through the Wall
1
2 (.6)
45 (13.7)
30 (9.1)
20 (6.1)
Through the Wall
2
2 (.6)
40 (12.2)
25 (7.6)
15 (4.6)
Through the Wall
3
2 (.6)
35 (10.7)
20 (6.1)
10 (3.0)
Through the Wall
4
2 (.6)
30 (9.1)
15 (4.6)
5 (1.5)
Through the Roof
0
7 (2.1)
50 (15.2)
35 (10.7)
25 (7.6)
Through the Roof
1
7 (2.1)
45 (13.7)
30 (9.1)
20 (6.1)
Through the Roof
2
7 (2.1)
40 (12.2)
25 (7.6)
15 (4.6)
Through the Roof
3
7 (2.1)
35 (10.7)
20 (6.1)
10 (3.0)
TABLE 2 – VENT CONNECTOR LENGTHS
FOR 3 in (7.6 cm) DIAMETER VENT PIPE
Terminating
# of Elbows
(excl. vent
terminals)
Minimum
Straight Length
ft (m)
Maximum
Straight Length
ft (m)
Elevation of installation
above sea level ft (m)
0-10100
(0-3079)
0-10100
(0-3079)
Through the Wall
1
10 (3.1)
115 (35.0)
Through the Wall
2
10 (3.1)
110 (33.5)
Through the Wall
3
10 (3.1)
105 (32.0)
Through the Wall
4
10 (3.1)
100 (30.5)
Through the Wall
5
10 (3.1)
95 (29.0)
Through the Roof
0
15 (4.6)
120 (36.6)
Through the Roof
1
15 (4.6)
115 (35.0)
Through the Roof
2
15 (4.6)
110 (33.5)
Through the Roof
3
15 (4.6)
105 (32.0)
Through the Roof
4
15 (4.6)
100 (30.5)