Maytag MMMF6030PZ Owners Manual - Page 20

Recommended Standard Fittings, Recommended Vent Length

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A B C D E G F A. Roof cap B. 6" (15.2 cm) minimum diameter round vent C. Elbow (for wall venting only) D. Wall cap E. 31/4" x 10" to 6" (8.3 cm x 25.4 cm to 15.2 cm) rectangular-to-round transition piece F. Vent extension piece, at least 3" (7.6 cm) high G. 3" (7.6 cm) Recommended Standard Fittings The following length equivalents are for use when figuring vent length. See the examples in "Recommended Vent Length". A B C Recommended Vent Length A 31/4" x 10" (8.3 cm x 25.4 cm) rectangular or 6" (15.2 cm) round vent should be used. The total length of the vent system including straight vent, elbow (s), transitions and wall or roof caps must not exceed the equivalent of 140 ft (42.7 m) for either type of vent. See the "Recommended Standard Fittings" section for equivalent lengths. For best performance, use no more than three 90° elbows. To calculate the length of the system you need, add the equivalent lengths of each vent piece used in the system. See the following examples: 31/4" x 10" (8.3 cm x 25.4 cm) vent system = 73 ft (22.2 m) total A B D E C A. One 31/4" x 10" (8.3 cm x 25.4 cm) 90° elbow= 25 ft (7.6 m) B. 1 wall cap = 40 ft (12.2 m) C. 2 ft (0.6 m) + 6 ft (1.8 m) straight = 8 ft (2.4 m) D. 6 ft (1.8 m) E. 2 ft (0.6 m) 6" (15.2 cm) vent system = 73 ft (22.2 m) total A B E F D E F G A. Rectangular-to-round transition piece: 31/4" x 10" to 6" = 5 ft (8.3 cm x 25.4 cm to 15.2 cm = 1.5 m) B. Roof cap: 31/4" x 10" = 24 ft (8.3 cm x 25.4 cm = 7.3 m) C. 90° elbow: 31/4" x 10" = 25 ft (8.3 cmx 25.4 cm = 7.6 m) D. 90° elbow: 6" = 10 ft (152 mm = 3 m) E. Wall cap: 31/4" x 10" = 40 ft (8.3 cm x 25.4 cm = 12.2 m) F. 45° elbow: 6" = 5 ft (152 mm = 1.5 m) G. 90° flat elbow: 31/4" x 10" = 10 ft (8.3 cm x 25.4 cm = 3 m) C D A. Two 90° elbows = 20 ft (6.1 m) B. 1 wall cap = 40 ft (12.2 m) C. 1 rectangular-to-round transition piece = 5 ft (1.5 m) D. 2 ft (0.6 m) + 6 ft (1.8 m) straight = 8 ft (2.4 m) E. 6 ft (1.8 m) F. 2 ft (0.6 m) If the existing vent is round, a rectangular to round transition piece must be used. In addition, a rectangular 3" (7.6 cm) extension vent between the damper assembly and rectangular to round transition piece must be installed to keep the damper from sticking. 20

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20
A
B
C
E
F
G
D
A.
Roof cap
B.
6" (15.2 cm) minimum diameter round vent
C.
Elbow (for wall venting only)
D.
Wall cap
E.
3
1
/
4
" x 10" to 6" (8.3 cm x 25.4 cm to 15.2 cm)
rectangular-to-round transition piece
F.
Vent extension piece, at least 3" (7.6 cm) high
G.
3" (7.6 cm)
Recommended Standard Fittings
The following length equivalents are for use when figuring vent
length. See the examples in “Recommended Vent Length”.
A
B
C
D
E
F
G
A.
Rectangular-to-round transition piece: 3
1
/
4
" x 10" to 6" = 5 ft (8.3 cm x
25.4 cm to 15.2 cm = 1.5 m)
B.
Roof cap: 3
1
/
4
" x 10" = 24 ft (8.3 cm x 25.4 cm = 7.3 m)
C.
90° elbow: 3
1
/
4
" x 10" = 25 ft (8.3 cmx 25.4 cm = 7.6 m)
D.
90° elbow: 6" = 10 ft (152 mm = 3 m)
E.
Wall cap: 3
1
/
4
" x 10" = 40 ft (8.3 cm x 25.4 cm = 12.2 m)
F.
45° elbow: 6" = 5 ft (152 mm = 1.5 m)
G.
90° flat elbow: 3
1
/
4
" x 10" = 10 ft (8.3 cm x 25.4 cm = 3 m)
Recommended Vent Length
A3
1
/
4
" x 10" (8.3 cm x 25.4 cm) rectangular or 6" (15.2 cm) round
vent should be used.
The total length of the vent system including straight vent, elbow
(s), transitions and wall or roof caps must not exceed the
equivalent of 140 ft (42.7 m) for either type of vent. See the
“Recommended Standard Fittings” section for equivalent lengths.
For best performance, use no more than three 90° elbows.
To calculate the length of the system you need, add the equivalent
lengths of each vent piece used in the system. See the following
examples:
3
1
/
4
" x 10" (8.3 cm x 25.4 cm) vent system = 73 ft (22.2 m) total
A
B
C
D
E
A.
One 3
1
/
4
" x 10" (8.3 cm x 25.4 cm) 90° elbow= 25 ft
(7.6 m)
B.
1 wall cap = 40 ft (12.2 m)
C.
2 ft (0.6 m) + 6 ft (1.8 m) straight = 8 ft (2.4 m)
D.
6 ft (1.8 m)
E.
2 ft (0.6 m)
6" (15.2 cm) vent system = 73 ft (22.2 m) total
A
B
C
D
E
F
A.
Two 90° elbows = 20 ft (6.1 m)
B.
1 wall cap = 40 ft (12.2 m)
C.
1 rectangular-to-round transition piece = 5 ft (1.5 m)
D.
2 ft (0.6 m) + 6 ft (1.8 m) straight = 8 ft (2.4 m)
E.
6 ft (1.8 m)
F.
2 ft (0.6 m)
If the existing vent is round, a rectangular to round transition piece
must be used. In addition, a rectangular 3" (7.6 cm) extension
vent between the damper assembly and rectangular to round
transition piece must be installed to keep the damper from
sticking.