Step 2: Prepare The Venting System - Bosch HMV9302 Installation Instructions Manual

STEP 2:
PREPARE THE VENTING SYSTEM
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.
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 Figures 5 (3
and 6 (6" round duct.)
Wall-venting If your oven is located on an outside wall on the first floor of your house, as in Figure 7
(3 / " x 10" duct) and Figure 6 (6" round duct.)
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Room-venting If your oven is located on an inside wall of your house, as in Figure 8.
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.
"roof-venting"
cabinet
oven
Roof-venting
"wall-venting"
cabinet
oven
Wall-venting
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.
•
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.
THIS OVEN MUST BE PROPERLY VENTED!
roof cap
3 1/4"x10"
duct
through-the-roof
Figure 5
wall cap
3 1/4"x10" through-the-wall
duct
Figure 7
roof cap
6" min.
wall cap
diameter
round duct
elbow
3 1/4" to round
duct transition
3 1/4" to round
ductwork transition
Figure 6
room-venting
cabinet
oven
Figure 8
8
1 / " x 10" duct)
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