Installation / Operation Instruction Manual

12
Venting continued-
1. For horizontal installations the vent pipe can be installed with a
downward slope (not less than 1/8"
(3 cm) ) and away from the
blower.
2. In order to prevent condensate from draining back into the blower
(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 with drain outlet mounts directly to the
blower outlet and is secured with two hose clamps, one to the
blower and the other to the vent pipe. Tubing is provided to drain
any accumulated condensate away from the water heater and to a
suitable drain. The kit comes complete with instructions for proper
installation.
Part I - Venting Specifications for:
48 Gallon (181.6 L)
65 Gallon (246.0 L)
This water heater is a power 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 water heater may be either vented horizontally
through the wall or vertically through the roof. Use a 3”
(7.6 cm) to 4”
(10.2 cm) reducer to connect to the vent outlet when using 4” (10.2 cm)
vent pipe. Apply the proper cement at the joint locations. Table 1 lists the
maximum vent lengths for this water heater using 3”
(7.6 cm) vent pipe. If
possible, locate the water heater so that the venting length and number of
elbows 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 allowed with 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 wall with 3” (7.6 cm) vent
pipe. Use the 3”
(7.6 cm) vent terminal supplied with the water heater to
terminate on the outside of the building. If the length of 3”
(7.6 cm) vent
pipe needed to go through the wall is greater than 14”
(35.5 cm) , use 4”
(10.2 cm) to go through the wall and reduce to 3” (7.6 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”
(2.5 cm) away from the edge of the wall.