Jenn-Air D156 Use And Care Manual page 41

Ductlng
Information
Jenn-Air's ventilation system is designed to capture both cooking fumes and smoke
from any place on the grill surface. If the system does not, these are some ducting
installation situations to check:
• 6" diameter round or 31/4 '' x 10" rectangular ducting should be used. Note: 5"
diameter round ducting may be used for venting straight out the back of the
cooktop and directly through the wall for 10' or less.
• No more than three 90 ° elbows should be used. Distance between elbows should
be at least 18".
• Recommended Jenn-Air wall cap should be used. Make sure damper moves
freely when ventilation system is operating.
• There should be a minimum clearance of 6" for cooktop installed near a side
wall.
If there is not an obvious improper installation, there may be a concealed problem
such as a pinched joint, obstruction in the pipe, etc. Installation is the responsibility
of the installer and questions should be addressed first by the installer. The installer
should very carefully check the ducting installation instructions.
43