Electrolux RH36WC60GS Complete Owner's Guide (English) - Page 8

8 Installing the hood Examples of possible ducting Roof pitch w/ Flashing and cap Pipe Transition Pipe Transition sidewall cap with gravity damper Deflector Pipe Transition Vertical Discharge 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 possible. In order of preference, use 1st. 10" round duct 2nd. 8" round duct 3rd. 3-1/4" x 14" duct 4th. 7" round duct 5th. 3-1/4" x l0" duct 6th. 6" round duct 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. • The height installation is determined by the following image. Mark the location. Installation height • 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.