Installation / Operation Instruction Manual

Venting continued-

Venting System Condensation

Condensate formation does not occur in all installations of power vented water

heaters but should be protected against on installations where condensation

can form in the venting system.

Formation of condensation in the venting system of Power Vented water

heaters is dependent upon installation conditions including, but not limited to:

• ambient temperature and humidity of installation location;

• ambient temperature and humidity of venting space;

• vent distance and slope;

• and product usage.

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.

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 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.