Air ExcellentTÜV SÜD Quality mark

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1 Distribution box

2 Habitable rooms

3 Wet rooms

4 HRV-unit

5 Insulated ductwork

6 Air inlet

7 Air outlet

Mechanical ventilation with heat recovery in

residential buildings

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Air Excellent: circular ductwork

Duct and connections

Valves / Grilles

Duct adaptors

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Air Excellent: semi-circular ductwork

Duct and connections

Valves / Grilles

Duct adaptors

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Air Excellent: universal distribution box

Distribution box adaptors and air restrictor ring

8x 16x 24x

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Air Excellent – TÜV SÜD quality mark

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Air Excellent – TÜV SÜD quality mark

Certificate

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Air Excellent – TÜV SÜD quality mark

Ductwork characteristics

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Air Excellent – TÜV SÜD quality mark

Certified components: circular ductwork

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Air Excellent – TÜV SÜD quality mark

Certified components: semi-circular ductwork

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Air Excellent – TÜV SÜD quality mark

Specific requirements

Material

The manufacturer shall declare which raw material is used to manufacture

the ductwork components.

NB Regranulate or milled material may not be used.

The dimensions and tolerances must also be specified.

See the Air Excellent technical data sheets

Operating system pressure

The manufacturer shall declare the operating system pressure as a

maximum negative and positive pressure.

Air Excellent -2,000 Pa to +2,000 Pa

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Air Excellent – TÜV SÜD quality mark

Specific requirements

Air-tightness

The manufacturer shall declare the air-tightness class and at which test

pressure(s) this air-tightness class was achieved.

Class D for AE23c, AE34c, AE48c, AE35sc and AE55sc

Class C for AE45sc

Test pressures (+ and -): 50, 100, 150, 200, 250, 300, 400, 500, 1,000 and

2,000 Pa

Pressure drop

The manufacturer shall declare the pressure drop of all ducts and ductwork

components.

See the Air Excellent technical data sheets

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Air Excellent – TÜV SÜD quality mark

Specific requirements

Operating temperature

The manufacturer shall declare the operating temperature at which no

significant change to the material characteristics shall take place.

Air Excellent fulfilled the above requirements between -20°C and +60°C

Reaction to fire

The manufacturer shall declare the reaction to fire class, which is

determined in accordance with EN 13501-1.

Air Excellent: class E

Resistance against external pressure

The manufacturer shall declare the resistance to external pressure. This is

the maximum height of concrete which can be poured onto the duct

without significant change to the cross-section.

Air Excellent: 200mm for all ducts

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Air Excellent – TÜV SÜD quality mark

Specific requirements

Ring stiffness

The ring stiffness is tested in accordance with ISO 9969.

Air Excellent

AE23c 10,83 kN/m²

AE34c 7,85 kN/m²

AE48c 7,75 kN/m²

AE35sc 11,08 kN/m²

AE45sc 1,33 kN/m²

AE55sc 5,85 kN/m²

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Air Excellent – TÜV SÜD quality mark

Specific requirements

Bending radius

The manufacturer shall declare the bending radii of all bendable

components at which the cross-section does not change significantly.

See the Air Excellent technical data sheets

Mechanical connection

All components of the ductwork shall be designed so that no additional

materials are required to connect and seal them.

Air Excellent: all ducts passed the minimum test requirements

Flexibility

This test checks if the duct can be bended using “normal” manual force

and no damage is caused by the bending.

Air Excellent: all ducts passed the minimum test requirements

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Air Excellent – TÜV SÜD quality mark

Specific requirements

Sagging

The manufacturer shall declare the maximum distance between supports

at which no sagging will occur.

Air Excellent: 2m for all ducts

Microbial resistance

To pass this test the manufacturer must ensure that all surfaces of the

ductwork components which come in contact with the air are microbial

resistant. Bacterial cultures are applied to the surface of the ductwork

components and the number bacteria are counted at pre-defined time

intervals. The number of bacteria must be reduced by at least 99.00% after

72 hours.

Air Excellent: more than 99.99% were reduced in less than 72 hours

Emissions into the air

This test determines if there are any emissions of volatiles from the material

into the air.

Air Excellent: no emissions of volatiles

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Air Excellent – TÜV SÜD quality mark

Specific requirements

Anti-static function

The anti-static function is the surface resistance of the ductwork

component and must be lower than 1012 Ω to be considered anti-static.

Air Excellent: < 1012 Ω for all ductwork components

Cleaning

The manufacturer shall describe how the system must be cleaned,

including which tools to use, whereby no damage to the air handling

surface of the duct or component will occur.

Air Excellent: requirements fulfilled using the WÖHLER tools shown below:

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About Ubbink Centrotherm Group

The Ubbink Centrotherm Group provides solutions and technologies that enable customers

to increase the energy efficiency of houses and improve the indoor climate. Our focus is on

gas flue and ventilation ducting systems. In addition, Ubbink and Centrotherm

manufacture and market products for watertightness, airtightness, room ventilation,

construction ventilation and photovoltaic solar systems. Ubbink and Centrotherm are

represented in Europe and around the world.