Maytag ACO1520AB Service Manual page 34

Installation Instruction
Room Venting
Oven is located on an inside wall of house.
Room Venting
NOTE: Remember the following when installing venting.
• Keep length of ductwork and the number of
elbows to a minimum to ventilate oven
efficiently.
• Keep the size of the ductwork the same.
• Do not install two elbows together.
• Use duct tape to seal all joints in the ductwork
system.
• Use caulking to seal exterior wall or roof
opening around the cap.
Standard Fittings
NOTE: If existing ductwork is round, a rectangular-to-
round adapter must be used with a rectangular
3" extension duct installed between the damper
assembly and adapter to prevent the exhaust
damper from sticking.
Ductwork Length
The total length of the ductwork system, including
straight duct, elbows, transitions, and wall or roof cap
must not exceed the equivalent of 140 feet.
For best performance, do not use more than three 90°
elbows and keep the length as short as possible.
Following are standard fittings and their equivalent
length in feet.
1 2
3 1/4"x10" 3 1/4"x10" roof
to 6"=5ft.
4 5
3 1/4"x10"
wall cap
90 elbow
=40ft.
=10ft.
16021668 Rev. 0
3
3 1/4"x10" 90
cap=24ft. elbow=25ft.
6 7
3 1/4"x10"
flat elbow
45 elbow
=10ft.
=5ft.
To calculate the equivalent length of each duct piece
used, see examples below.
For 3 1/4"x10" Systems
3 1/4"x10"
90 elbow
1-3 1/4" x 10" 90 elbow
1-Wall Cap
8 feet straight duct
Total Length
For 6" Round Systems
90 elbows
transition
1-transition
2-90 elbows
1-Wall Cap
8 feet straight
Total Length
A–6
6ft. wall cap
2ft.
= 25 ft.
= 40 ft.
= 8 ft.
= 73 ft.
wall cap
6ft.
2ft.
= 5 ft.
= 20 ft.
= 40 ft.
= 8 ft.
= 73 ft.
©2002 Maytag Appliances Company