GE Monogram ZV750 Installation Instructions Manual

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Contents

DUCT FITTINGSThis Hood Must Use an6″ Round Duct. It CanTransition to 3-1/4″ x 10″or 3-1/4″ x 12″ Duct.Use this chart to computemaximum permissible lengthsfor duct runs to outdoors.NOTE: Do not exceed maximumpermissible equivalent lengths!Maximum duct length:100 foot for range hoods.Flexible ducting:If flexible metal ducting is used,all the equivalent feet values inthe table should be doubled.The flexible metal duct shouldbe straight and smooth andextended as much as possible.DO NOT use flexible plasticducting.NOTE: Any home ventilationsystem, such as a ventilation hood,may interrupt the proper flow ofcombustion air and exhaustrequired by fireplaces, gasfurnaces, gas water heaters andother naturally vented systems.To minimize the chance ofinterruption of such naturallyvented systems, follow theheating equipment manufacturer’sguidelines and safety standardssuch as those published by NFPAand ASHRAE.5Installation PreparationTotal Duct Run*Actual length of straight duct plus duct fittingequivalent. Equivalent length of duct pieces arebased on actual tests conducted by GE EvaluationEngineering and reflect requirements for goodventing performance with any ventilation hood.TotalEquivalent Quantity EquivalentDuct Piece Dimensions Length* Used LengthRound, 1 ft. (perstraight foot length)3-1/4″ x 10″ 1 ft. (perstraight foot length)90° elbow 12 ft.45° elbow 7 ft.3-1/4″ x 10″ 14 ft.3-1/4″ x 12″ 10 ft.90° elbow3-1/4″ x 10″ 8 ft.3-1/4″ x 12″ 6 ft.45° elbow3-1/4″ x 10″ 33 ft.3-1/4″ x 12″ 24 ft.90° flat elbow6″ round to 2 ft.rectangularRectangular to 8″ 2 ft.round3-1/4″ x 10″ 4 ft.3-1/4″ x 12″ 4 ft.6″ round to rectangulartransition 90° elbow3-1/4″ x 10″ 4 ft.3-1/4″ x 12″ 4 ft.Rectangular to 6″ roundtransition 90° elbowRound wall cap 24 ft.with damper3-1/4″ x 10″ 24 ft.3-1/4″ x 12″ 18 ft.Rectangular wall capwith damperRound roof cap 33 ft.