GE MONOGRAM ZV1050 Installation Instructions Manual

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Contents

6Advance PlanningDUCT FITTINGS TotalEquivalent Quantity EquivalentDuct Piece Dimensions Length* Used LengthRound, 1 ft.straight (per footlength)1 ft.3-1/4" x 12" (per footstraight length)90° elbow 17 ft.45° elbow 10 ft.3-1/4" x 12"90° elbow 43 ft.3-1/4" x 12"45° elbow 26 ft.3-1/4" x 12"90° flat elbow 102 ft.8" round to3-1/4" x 12" transition 2 ft.3-1/4" x 12"to 8" round transition 5 ft.8" roundto 3-1/4" x 12"transition 90° elbow 6 ft.3-1/4" x 12" to 8"round transition 90° elbow 13 ft.Roundwall capwith damper 32 ft.3-1/4" x 12" wall capwith damper 75 ft.Roundroof cap 44 ft.Use this chart to compute maximumpermissible lengths for duct runs tooutdoors.NOTe: Do not exceed maximum permissible equivalentlengths!Maximum duct length:100 ft. for range hoods.Flexible ducting:If flexible metal ducting is used, allthe equivalent feet values in the tableshould be doubled. The flexible metalduct should be straight and smoothand extended as much as possible.Do NOT use flexible plastic ducting.Total Duct RunNOTe: Any home ventilation system, such as a ventilationhood, may interrupt the proper flow of combustion air andexhaust required by fireplaces, gas furnaces, gas waterheaters and other naturally vented systems. To minimizethe chance of interruption of such naturally vented systems,follow the heating equipment manufacturer’s guidelinesand safety standards such as those published by NFPAand ASHRAE.* Actual length of straight duct plus duct fitting equivalent.Equivalent length of duct pieces are based on actual testsconducted by GE Evaluation Engineering and reflectrequirements for good venting performance with anyventilation hood.This Hood MustUse 8" Round Duct.It Can Transition to3-1/4" x 12" Duct.