GE AVM4160DFWS Manuel d'instructions télécharger pdf (Page 6)

EQUIVALENT NUMBER EQUIVALENT

DUCT PIECES LENGTH x USED = LENGTH

Rectangular-to-Round 5 Ft. x ( ) = Ft.

Transition Adaptor*

Wall Cap 40 Ft. x ( ) = Ft.

90° Elbow 10 Ft. x ( ) = Ft.

45° Elbow 5 Ft. x ( ) = Ft.

90° Elbow 25 Ft. x ( ) = Ft.

45° Elbow 5 Ft. x ( ) = Ft.

Roof Cap 24 Ft. x ( ) = Ft.

Straight Duct 6s Round or 1 Ft. x ( ) = Ft.

ø4s x 10s Rectangular

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Equivalent lengths of duct pieces are based on actual tests and

reflect requirements for good venting performance with any vent

hood.

* IMPORTANT: If a rectangular-to-round transition

adaptor is used, the bottom corners of the damper

will have to be cut to fit, using the tin snips, in order

to allow free movement of the damper

NOTE: If you need to install ducts, note that the total duct

length of 3

ø4s x 10s rectangular or 6s diameter round duct

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Outside ventilation requires a HOOD EXHAUST DUCT.

Read the following carefully:

NOTE: It is important that venting be installed using

the most direct route and with as few elbows as possible.

This ensures clear venting of exhaust and helps prevent

blockages. $OVRPDNHVXUHGDPSHUVVZLQJIUHHO\DQG

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Exhaust connection:

The hood exhaust has been designed to mate with

a standard 3

ø4s x 10s rectangular duct.

If a round duct is required, a rectangular-to-round

transition adaptor must be used. Do not use less than

a 6s diameter duct.

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For satisfactory air movement, the total duct length of

ø4s x 10s rectangular or 6s diameter round duct should

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Elbows, transitions, wall and roof caps, etc.,

present additional resistance to airflow and are equivalent

to a section of straight duct which is longer than their actual

physical size. When calculating the total duct length, add the

equivalent lengths of all transitions and adaptors plus the

length of all straight duct sections. The chart below shows

you how to calculate total equivalent ductwork length using

the approximate feet of equivalent length of some typical

duct pieces.

Installation Instructions

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GE AVM4160DFWS Manuel d'instructions Page 6

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