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Venting continued-
2.
In order to prevent condensate from draining back into the blow er (vertical
or horizontal runs), an optional condensate kit is available as a service part
(Condensate kit, p/n 239-45875-00). A factory supplied exhaust adapter
w ith drain outlet mounts directly to the blow er outlet and is secured w ith
tw o hose clamps, one to the blow er and the ot her to the vent pipe. Tubing
is provided to drain any accumulated condensate aw ay from the w ater
heater and to a suitable drain. The kit comes complete w ith instructions for
proper installation.
Venting Specifications for: 48 Gallon (181.6 L)
This w ater heater is a pow er vented appliance and is designed to vent its
products of combustion through 3'' (7.6 cm) or 4'' (10.2 cm) diameter
vent pipe to the outdoors. This w ater heater may be either vented
horizontally through the w all or vertically through the roof. Use a 3'' (7.6
cm) to 4'' (10.2 cm) reducer to connect to the vent outlet w hen using 4''
(10.2 cm) vent pipe. Apply the proper cement at the joint locations. Table
1 lists the maximum vent lengths for this w ater heater using 3'' (7.6 cm)
vent pipe. If possible, locate the w ater heater so that the venting length
and number of elbow s are kept to the minimum distance necessary to
reach the outside. If the installation requires venting lengths that exceed
the lengths listed for 3'' (7.6 cm) vent pipe in Table 1, then use 4'' (10.2
cm) vent pipe for the vent connector.
Table 2 lists the venting distances allow ed w ith 4'' (10.2 cm) diameter
vent pipe. When venting with 4'' (10.2 cm) vent pipe, use a 4'' (10.2 cm)
to 3'' (7.6 cm) reducer to exit through the building w all w ith 3'' (7.6 cm)
vent pipe. Use the 3'' (7.6 cm) vent terminal supplied w ith the w ater
heater to terminate on the outside of the building. If the length of 3'' (7.6
cm) vent pipe needed to go through the w all is greater than 14'' (35.5
cm), use 4'' (10.2 cm) to go through the w all and reduce to 3'' (7.6 cm)
vent pipe immediately after exiting the outside w all. Refer to the venting
illustrations on the follow ing pages. Make sure the vent pipe terminal
elbow fitting is at least 1'' (2.5 cm) aw ay from the edge of the w all.
Terminating
Through the Wall
Through the Wall
Through the Wall
Through the Wall
Through the Roof
Through the Roof
Through the Roof
Through the Roof
TABLE 1 - VENT CONNECTOR LENGTHS
FOR 3'' (7.6 cm) DIAMETER VENT PIPE
# of
Elbows
1
2
3
4
0
1
2
3
Maximum straight
Length ft (m)
48 gal.
45 (13.7)
40 (12.2)
35 (10.7)
30 (9.2)
50 (15.2)
45 (13.7)
40 (12.2)
35 (10.7)
12
Minimum straight
Length
ft (m)
2 (.6)
2 (.6)
2 (.6)
2 (.6)
7 (2.1)
7 (2.1)
7 (2.1)
7 (2.1)
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