Installation / Operation Instruction Manual

Venting (Venting System Condensation) continued-

In order to effectively control condensate from adversely affecting the

mechanical components of the water heater several methods may be

employed:

1. For horizontal installations the vent pipe can be installed with a downward

slope (not less than 1/8 in (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.

Venting Specifications for 48 Gallon (181.6 L):

This water heater is a power vented appliance and is designed to vent its

products of combustion through 3 in (7.6 cm) or 4 in (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 in (7.6 cm) to 4 in

(10.2 cm) reducer to connect to the vent outlet when using 4 in (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 in (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 in (7.6 cm) vent

pipe in Table 1, then use 4 in (10.2 cm) vent pipe for the vent connector.

Table 2 lists the venting distances allowed with 4 in (10.2 cm) diameter vent

pipe. When venting with 4 in (10.2 cm) vent pipe, use a 4 in (10.2 cm) to

3 in (7.6 cm) reducer to exit through the building wall with 3 in (7.6 cm) vent

pipe. Use the 3 in (7.6 cm) vent terminal supplied with the water heater to

terminate on the outside of the building. If replacing a water heater and the

existing vent terminal supplied with the new water heater, replacement of the

vent terminal is not required. The vent terminal should be inspected to make

sure that it is in good condition.

If the length of 3 in (7.6 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 3

in (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 in (2.5 cm) away from the edge of the wall.