8 | Installing the hood |
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Examples of possible ducting
Roof pitch w/
Flashing and cap
Pipe | Pipe |
Transition | Transition |
Vertical Discharge
sidewall cap with gravity damper
Deflector |
Pipe |
Transition |
Recirculating |
Ductwork installation guidelines
For safety reasons, ducting should vent directly outdoors (not into an attic, underneath the house, into the garage or into any enclosed space). Keep duct runs as short and straight as possible. Duct fittings (elbows and transitions) reduce air flow efficiency.
Back to back elbows and „S“ turns give very poor delivery and are not recommended.
A short straight length of duct at the inlet of the remote blower gives the best delivery.
Transition to duct from the integral blower or remote duct transition as close to the downdraft as is pos- sible.
In order of preference, use 1st. 10" round duct 2nd. 8" round duct
3rd.
The use of flexible metal round duct should only be used when no other duct fitting exists. Limit use to short lengths and do not crush when making corners.
Ductwork and wiring locations
•Determine the exact location of the vent hood.
•Locate the template packed with the literature.
•Installation height: 30" gas cooktop/range or 24" to 30" electric cooktop/range.
•Use a level to draw a horizontal straight pencil line on the wall, which is your desired installationheight.
•Find the centerline of the cooktop. Use a level to draw a vertical straight pencil line on the wall.
CHECK TO BE SURE THE LINE IS PERFECTLY PERPERNDICULAR.
