Dacor DHICH Manuel d'installation télécharger pdf (Page 7)

Calculating the Maximum Duct Run Length

The maximum straight duct length for the hood is 50 feet.

To determine the actual maximum duct run, subtract the

equivalent length of each elbow, transition and cap from

50 feet.

EQUIVALENT LENGTHS

Piece Subtract Piece Subtract

8” 90° elbow 7 feet

10” 90°

elbow

5 feet

8” 45° elbow 3 feet

10” 45°

elbow

2 feet

3¼” X 10”

to round 90°

transition

25 feet

3¼” X 10” to

8”/10” round

transition

4 feet

Roof cap *

Wall cap

with damper

* The equivalent lengths of roof and wall caps vary with

model and configuration. For equivalent length, contact

the manufacturer or a qualified HVAC specialist.

Installation Specifications

Duct Work Design Tips

Wherever possible, reduce the number of transitions and

turns to as few sharp angles as possible. Two staggered

45° angles are better than one 90°.

Keep turns as far away from the hood exhaust as pos-

sible, and as much space between bends as possible.

For best performance, use round duct instead of rectan-

gular, especially when elbows are required.

If multiple elbows are used, try to keep a minimum of 24

inches straight duct between them.

Avoid “S” or “back to back” use of adjacent elbows.

In regions where the weather gets extremely cold, use

thermal breaks, such as a short section of non-metallic

duct, to avoid indoor heat loss. Locate the break as close

as possible to the outside pass through point.

Do not use flexible metal duct.

DO NOT use duct work that is smaller in cross-sectional

area than the recommended types above.

Installation Instructions

Verify the Package Contents

Unpack the parts boxes and verify that all required com-

ponents have been provided. The parts shown below

include the contents of the chimney kit (DHICH),

which is required for installation. If any item is missing

or damaged, please contact the dealer immediately. Do

not install a damaged or incomplete appliance.

■ Hood assembly with filter(s)

■ Chimney assembly (2 piece)

■ Mounting bracket

■ Blower exhaust cowling (2 blower units only)

■ Framework assembly (2 piece)

■ Mounting and assembly hardware

■ Product literature

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Dacor DHICH Manuel d'installation Page 7

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