Maytag MMV5156AAS Installation Instructions Manual
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Brand: Maytag
Category: Microwave Oven
Type: Installation instructions manual
Model: Maytag MMV5156AAB , Maytag MMV5156AAQ , Maytag MMV5156AAS , Maytag MMV5156AAW
Pages: 19
STEP 2: Prepare The Venting System
Standard Fittings
NOTE: If the existing duct is round, you must use a rectangular-to-round adapter, with a rectangular 3" extension
duct installed between the damper assembly and the adapter to prevent the exhaust damper's sticking.
Duct Length
The total length of the duct system, including straight duct, elbows, transitions, and wall or roof caps must not
exceed the equivalent of 140 feet.
For best performance, do not use more than three 90 degree elbows, and keep length as short as possible.
Below are the standard fittings and their equivalent length in feet.
3 1/4"x10"
to 6"=5ft.
3 1/4"x10" roof
cap=24ft.
3
3 1t4"x10" 90 °
elbow=25tt.
90" elbow
=10ft.
5
3 1/4"x10"
walt cap
=40ft.
6
45" elbow
:5ft.
7
3 1/4"x10"
flat elbow
=10ft.
Figure 9
To calculate the equivalent length of each duct piece used, see the examples below.
For 3 1/4"x10" SYSTEMS
Exam
1-31/4" x10" 90° elbow = 25ft.
1-Wall Cap = 40 ft.
8 feet straight duct = 8 ft.
TOTAL LENGTH = 73 ft.
_les
For 6" ROUND SYSTEMS
90" elbows _ 6ft. _ wall cap
1-transition = 5 ft.
2-90 ° elbows = 20 ft.
1-Wall Cap = 40 ft.
8 feet straight = 8 ft.
TOTAL LENGTH = 73 ft.
10