Kenmore 721.80402 Installation Instructions Manual page 8

STEP 2:
PREPARE THE VENTING S YSYTEM
NOTE: The ductwork you need for outside ventilation is not included with your oven. The standard ductwork
fittings and length are shown in Figure 9, page 9.
WARNING - FIRE HAZARD
THIS OVEN MUST BE PROPERLY VENTED!
You may vent your oven in one of three ways:
Roof Venting If your oven is located on an outside wall near the roof, as in Figure 6 (3-1/4" x 10" duct) and
Figure 8 (6" round duct.)
Wall Venting If your oven is located on an outside wall on the first floor of your house, as in
Figure 5 (3-1/4" x 10" duct) and Figure 8 (6" round duct.)
Room Venting If your oven is located on an inside wall of your house, as in Figure 7.
NOTE: If you choose the rear exhaust method (roof or wall venting), be sure there is enough clearance within
the wall for the exhaust duct.
cabinet
.,
Wall venting
Wall Venting
/
3-1/4"xl 0"
duct
Figure 5
wall cap
through-the-wall
cabinet
.-
Roof venting
Roof Venti ng
duct [_
through-the-roof
Figure 6
REMEMBER AS YOU INSTALL THE VENTING:
* Keep the length of the ductwork and the
number of elbows to a minimum to
ventilate your oven efficiently.
See examples on page 9.
• Keep the size of the ductwork the same. cabinet
• Do not install two elbows together.
• Use duct tape to seal all joints in the duct
system.
• Use caulking to seal the exterior wall or
roof opening around the cap.
Room Venting
ove
Figure 7
roof cap
6" min. wall cap
diameter
round
elbow
3-1/4" to round ,/
duct transition
3-1/4" to round
ductwork transition
Figure 8