Installation / Operation Instruction Manual

Installation (Venting) continued-

Part I - Venting Specifications for:

48 Gallon, 65,000 BTU input (181.7 L, 19.1 kW/Hr)

65 Gallon, 65,000 BTU input (246.1 L, 19.1 kW/Hr)

75 Gallon, 76,000 BTU input (283.9 L, 22.3 kW/Hr)

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 Schedule

40 (solid or cellular core) PVC pipe to the outdoors. This water heater may be

either vented 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)

PVC. Table 2 lists the maximum vent lengths for this water heater using 3” (7.6

cm) PVC. 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) PVC in Table 2, then use 4” (10.2 cm) PVC for the vent

connector. Table 3 lists the venting distances allowed with 4” (10.2 cm)

diameter PVC pipe. When venting with 4” (10.2 cm) PVC, use a 4” (10.2 cm) to

3” (7.6 cm) reducer to exit through the building wall with 3” (7.6 cm) PVC. 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) PVC 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) PVC 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.

TABLE 2 - VENT CONNECTOR LENGTHS

FOR 3” (7.6 cm) DIAMETER PVC

Terminating

# of 90° Elbows

(excluding vent

terminal)

Maximum

Length

Minimum

Length

Through the Wall 1 40 ft (12.2 m) 2 ft (.6 m)

Through the Wall 2 35 ft (10.7 m) 3 ft (.9 m)

Through the Wall 3 30 ft (9.1 m) 5 ft (1.5 m)

Through the Wall 4 25 ft (7.6 m) 8 ft (2.4 m)

Through the Roof 1 40 ft (12.2 m) 2 ft (.6 m)

Through the Roof 2 35 ft (10.7 m) 3 ft (.9 m)

Through the Roof 3 30 ft (9.1 m) 5 ft (1.5 m)

Through the Roof 4 25 ft (7.6 m) 8 ft (2.4 m)

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