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Bradford White M-2-TW-75T6SX User Manual

Page 18

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18

Venting (Part II) continued-

TABLE 6

VENT CONNECTOR LENGTHS FOR 3” (7.6 cm) DIAMETER VENT PIPE

Terminating

# of 90

° Elbows

(excluding vent

terminal)

Max straight

Length

ft (m)

Min straight

Length

ft (m)

Through the Wall

1

115 (35) 10

(3.1)

Through the Wall

2

110 (33.5) 10

(3.1)

Through the Wall

3

105 (32.0) 10

(3.1)

Through the Wall

4

100 (30.5) 10

(3.1)

Through the Wall

5

95 (29.0) 10

(3.1)

Through the Roof

0

120 (36.6) 15

(4.6)

Through the Roof

1

115 (35) 15

(4.6)

Through the Roof

2

110 (33.5) 15

(4.6)

Through the Roof

3

105 (32.0) 15

(4.6)

Through the Roof

4

100 (30.5) 15

(4.6)

NOTE: When using 3” (7.6 cm) vent pipe, use a 3” (7.6 cm) to 2” (5.1 cm)
reducer and exit the building wall with 2” (5.1 cm)
vent pipe using the 2”
(5.1 cm)
45

° vent terminal supplied. Two 45° elbows are equivalent to one

90

° elbow. Each 90° elbow is equivalent to 5 feet (1.5 m) of straight vent

pipe.

CONNECTION TO 2” (5.1 CM)

VENT PIPE

CONNECTION TO 3” (7.6 CM)

VENT PIPE

Figure 6

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