Cooker hoods 500 - 1000m3/hr

DK 6/7 3M long 6R6R

6R100R

6R100R

6D4R

6D11R

6D100F

DK 6/100 6DCLIP

6DCLIP

1M

6D1R Louvred Wall Vent6D2R Cowled Wall Outlet6D300F 3 metre 6” (150mm) Flexi Hose6D600F 6 metres 6” (150mm) Flexi Hose6D150A Round Aluminum Duct 1.5M Long6D300A Round Aluminum Duct 3M Long 6DCLIP Hose Clip 6” (150mm)6D4R Round/Rectangular Elbow (150mm round/ 6R100R 150mm Rectangular)6D5R Round/Rectangular Elbow (150mm round/ 5R100R 125mm Rectangular)6D11R Threaded Hose Connector (150mm)6D16R Round Pipe Connector and Damper6D17R Wall Outlet with Gravity Flap6D18D Round to Round 90° bend6DR1R Rectangular/Round Connector6R6R Connector for Rectangular Rigid Ducting6R8R Horizontal Bend6R9R Vertical Bend6R100R Rectangular Rigid Duct 100cm Long6R19R Flat Channel Clip (one needed either side)6D100R Round Rigid Pipe 100cm Long6R300F Flexible Rectangular Hose 3M Long6R7R Double Airbrick6R3R Double Airbrick Adapter Adapter6DALUCLIP Aluminum Duct ClipUB41 Universal Roof Vent

6D17R6D1R 6D2R

6D100R 6DR1R6D4R 6R8R

6R100R

6D16R6R6R6R3R 6D18D

6R9R

6R19R

6DALUCLIP

6R7R

6DCLIP6D300F/6D600F

6R300F 6D150A6D300A

Suitable for 100, 125, 150 & 160, round pipe with 500mm sq. lead flashing skirt.

UB41

DK 6/1 1M longDK 6/2 2M longDK 6/3 3M long

6” (150mm) nominalor rectangular equivalentMaximum airflow performance can be achieved with 150mm

dia. ducting. Particularly suitable for larger fans and

more powerful cooker hoods.

Separate parts can be ordered using appropriate code. Please

ring for further advice.

6D1R

1M/2M/3M

6DCLIP

DK 6/12 3M long

6D17R

6DCLIP

3M

ELICA.indd 1 13/7/04 8:13:52

DR Cooker Hoods Ltd2 Alpha Road

Aldershot HampshireGU12 4RG

Tel: (01252) 351111 Fax:(01252) 311608

email:sales@drcookerhoods.co.ukwww.elica.co.uk

Issue 0604

The company reserves the right to alter specifications, sizes, ratings, etc., as quoted in this leaflet, without prior notice of such changes, additions or deletions.

ELICA.indd 2 13/7/04 8:13:56

Ventilation Ducting

DR Cooker Hoods Ltd

ELICA.indd 3 13/7/04 8:14:02

54mm

110mm

60mm

204mm

90mm

220mm

Up to 250m3 / hr

Up to 500m3 / hr

500 - 1000m3 / hr

Because it is normally hidden, a ducting system is often not con-

sidered an important part of the construction or refurbishment

of a building. However, the importance of the correct ducting is

slowly becoming recognised by the building industry.

It is not always the fault of the cooker hood manufacturer when

dreams of fresh kitchens and low noise are not achieved. It can

often be that the size or configuration of ducting has been in-

correctly selected by the installer or system designer.

As it cannot be seen, air movement is often made more com-

plicated than it actually is. Air moves just as water moves and

it is sometimes useful to visualise a problem by substituting it

with water.

In ventilation installations the aim is normally to move the air

from its source to the outside of the house as efficiently and qui-

etly as possible. It is, therefore, common sense that to do this

effectively, the shorter the distance that the air has to travel,

the quicker the aim is achieved. It is also common sense that

if an obstacle is put in the way, such as a bend, the process will

become more difficult as the air will lose its momentum and

require more powerful assistance in order to achieve the aim.

Cooker hoods vary in power just as cars do and the results are

reflected in much the same way. A high performance/specifica-

tion car should be quieter, last longer and generally provide the

driver with more comfortable and satisfactory results. However,

to ensure this, the car needs a straight smooth road on which

to travel effectively. The road for the air to travel when using a

cooker hood is the ducting. Again, it is common sense that a

more powerful cooker hood would need a more efficient duct

– a Rolls Royce owner would not consider driving their car off-

road! It is worth remembering that many cooker hood manu-

facturers’ guarantees will be invalidated if the correct size of

ducting is not used to match the power of the cooker hood.

A few key installation guidelines can be applied to help ensure that the ducting selection is correct and installed in a way that optimises the cooker hoods’ performance.

• Choose the shortest and most direct route to outside.

• Ensure that bends are kept to a minimum.

• Check the extraction capability and connection size of the

cooker hood and choose an appropriate size of ducting. Refer

to the cooker hood manufacturer for performance ratings

and specifications.

• A round duct provides optimum airflow performance and

should be used if installation space allows.

• Rectangular or flat channel ducting is an excellent alternative

when space is restricted. Its low profile enables the ducting

to be easily concealed in the ceiling void or along the top of

wall units.

• A rigid duct is more efficient than a flexible duct and should

be used whenever possible.

• If flexible hose is used, the hose should remain taut and as

straight as possible.

• Provision should be made for make up air. In most dwellings

this is catered for by natural leakage. However, some high

performance products may require the installation of an air

supply set.

Important

If installing a cooker hood in a room containing an open-

flued fuel-burning appliance (ie non-balanced flue), there

must be sufficient replacement air to prevent fumes being

drawn back down the flue when the cooker hood is set to

maximum extract.

Exhaust air must not be discharged into a flue used for exhaust-

ing fumes from appliances supplied with energy other than

electricity. When deciding the method for exhaust air discharge

and intake flow rates, the requirements of all relevant authori-

ties must be strictly adhered to.

If the duct passes through an unheated roof void the duct should

be insulated to reduce the formation of condensation. A vertical

duct should also be installed with a weatherproof roof cowl of

sufficient free area for the air volume. A condensation trap must

be fitted in order in order to alleviate condensation build-up.

Horizontal ducts should fall away from the cooker hood.

Choosing and Installing the Correct Cooker Hood Ducting

Application

Particularly suitable for applications requiring lower extraction rates, such as the ventilation of lower powered cooker hood with 100mm exhaust spigots, domestic bathrooms and internal WCs. Provides efficient ducting for short, simple runs.

Ideal for the ducting of medium powered kitchen cooker hoods and fans with 125mm round exhaust spigots. Highly efficient even for long runs, and with appliances of a high extraction rate.

Ideal for the ducting of very high powered cooker hoods, especially those with 150mm exhaust spigots. This highly efficient rectangular duct has a comparable airflow performance of a 150mm round duct, but its lower profile provides the fitter or system designer with greater installation flexibility.

Dimensions

Flat channel outer dimensions are 110 x 54mm and fit into system parts sockets.

Minimum space required: 115 x 60mm

Flat channel outer dimensions are 204 x 60mm and fit into system parts sockets.

Minimum space required: 210 x 65mm

Flat channel outer dimensions are 220 x 90mm and fit into system part sockets.

Minimum space required: 227 x 97mm

Cross Section

Free Area: 5300mm2

Free Area: 11200mm2

Free Area: 17968mm2

Size

4" (100mm)

5" (125mm)

6" (150mm)

• Made from flame retardant self extinguishing materials to conform to us fire standard UL94 V2 and also to DIN 4102 B1

• Maximum working temperature of 60˚c

• Bends and adapters meet most installation requirements

• Lightweight and easy to install

ELICA.indd 4 13/7/04 8:14:06

4D30-55R 4D100R

100 I.D. 104 O.D.

4R5R

4RD2R Rectangular/Round Connector4RD3R Round/Rectangular Elbow with Socket4R30R Rectangular Rigid Duct 300mm Long4RD03R Round/Rectangular Elbow with Spigot4R04R Rectangular Connector4R5R Rectangular Horizontal Elbow4R6R Rectangular Vertical Elbow4R7R Rectangular Duct Retaining Clip4D8R-BR Cowled Wall Vent Round Socket - Brown4D8R-WH Cowled Wall Vent Round Socket - White4R9R-BR Cowled Wall Vent Rectangular Socket - Brown4R9R-WH Cowled Wall Vent Rectangular Socket - White4D11R Threaded Hose Adapter 100mm I.D.4D12R Threaded Hose Adapter 100mm O.D.4R13R Adapter (4R100R-5R7R) outlet4D15D Round Pipe Connector

4R16R Round Pipe Connector + Damper4D18D Round to Round 90° Bend4D300F Round Flexi Hose 3M Long4D600F Round Flexi Hose 6M Long4D150A Round aluminum duct 1.5M Long4D300A Round aluminum duct 3M Long4R300F Rectangular Flexi Hose 3M Long4D100R Round Pipe 1M Long4R100R Rectangular Rigid Duct 1M Long4DCLIP Hose Clip4DALUCLIP Aluminum Duct ClipTAPE33 33M PVC Adhesive Tape4D30-55R Round Adjustable Pipe4D14R Fixed Louvred Grille Round Socket 4D5D Universal Offset Ducting SpigotUB 41 UNI Roof Vent

4R6R 4RD2R

4D8R

DK 4/1

2 x 4D11R Adapter

4R30R

300mm4R9R

4RD3R

DK 4/2

Separate Part 4D600F 4” dia flex tube 6M long

DK 4/3 1M longDK 4/4 2M longDK 4/5 3M long

4D8R

4D11R

Separate Part 4D14R

Separate Parts 4R13R Adapter

DK 4/9

4R100RExternal

110 x 54mm

4R100R

4R9R154 x 154mm

Spigot 110 x 54 I.D.

4R04RInternal

110 x 54mm4D12R

100mm dia.

4D11R100mm I.D.

4RD3RI.D. 100mm

1Mmax5R7R

4” (100mm) nominal or rectangular equivalent

One of these ducting kits will be ideal for most

situations. They are designed for cooker hoods

with 100mm dia. ducting outlets and for bathroom

extraction systems. The flexible hose kits may also

be used for tumble dryers.

Each part may be ordered separately, so to extend

any of these kits, simply order the appropriate kit

plus extra part.

Please ring for advice regarding special applications

such as ducting into or through chimneys.

Suitable for 100, 125, 150 & 160, round pipe with 500mm sq. lead flashing skirt.

UB41

Cooker hoods up to 250 m3 /hr

4DALUCLIP 4R300F/4R600F4D150A/4D300A4D15D 4R16R 4D18D

4D5D

ELICA.indd 5 13/7/04 8:14:14

5DR1R Rectangular/Round Connector5DR2R Round/Rectangular Vertical Elbow5R3R Rectangular Vertical Elbow5R100R Rectangular Rigid Duct 1M Long5R30R Rect Rigid Duct 300mm Long5D30-55R Round Adjustable Telescopic Pipe5R4R Rectangular Horizontal Elbow5R40R Rectangular Rigid Duct 400mm Long5R5R Connector Rectangular Rigid Duct5R6R Connector Rectangular Flexi Duct5R6D 125mm to 150mm Adapter

5R7R Wall Vent Rectangular Outlet5D8R Wall Vent Round Outlet5D11R Threaded Hose Adapter5D13R 4” to 5” Adapter5D14R Wall Plate5D15R Connector for Round Rigid Duct5D16R Round Pipe Connector and Damper5D17R Wall Outlet with Gravity Flap5D100R Round Pipe 1M Long5D300F Round Flexible Hose 3M Long5D600F Round Flexi Hose 6M Long

5D150A Round aluminum duct 1.5M Long5D300A Round aluminum duct 3M Long5DCLIP Hose Clip5ALUCLIP Aluminum Duct ClipTAPE33 33M PVC Adhesive Tape4D5D Universal Offset Ducting Spigot5D18D Round to Round 90° Bend5R300F Rectangular Flexi Hose 3M Long5R19R Flat Channel clip

5” (125mm) nominalor rectangular equivalent

One of these ducting kits will be ideal for most situations. They

are designed for cooker hoods with 125mm dia. ducting outlets

and for bathroom extraction systems.

Each part may be ordered separately, so to extend any of these

kits, simply order the appropriate kit plus extra part.

DK 5/2 1M longDK 5/3 2M longDK 5/4 3M long

DK 5/1

5D8R

5D11R

5D11R

5DR2R

5R30R

5DR1R

5R6D5D100R

5D17R

DK 5/8 Separate Part 5D30-55R

5R100R204 x 60mm

External

5R5R204 x 60mm

Internal

5DR2R125mm I.D.

5D11R

5D11R125mm I.D.

5R7R222 x 69mm

5R100R

Separate Part 5R4R

Small end 121 I.D. 125 O.D.Large end 125 I.D. 129 O.D.

1Mmax

Suitable for 100, 125, 150 & 160, round pipe with 500mm sq. lead flashing skirt.

UB41

Cooker hoods up to 500 m3 /hr

5D15R 5D18D

5R300F5R19R

5R7R

5D13R to connect 5” duct to 4” spigot

5R16R

5R3R 5D14R 5R6R 5D150A /5D300A 5DALUCLIP 5D300F/5D600F

DK 5/17 3M long

6D17R

6DCLIP

3M

DK 5/12 3M longDK 5/11 1M long

4D5D

ELICA.indd 6 13/7/04 8:14:21