Electrolux RH36WC40GS Complete Owner's Guide (English) - Page 8

8 Installing the hood Examples of possible ducting Recirculating Vertical discharge Horizontal discharge 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. After having choosen the vent option, proceed as follows: Step 2 Remove the round transition from its seat by unscrewing the its fixing screws (save the screws). 7" Round Transition Step 3 Remove the grease filters.