a n tPollen

VOCVolatile Organic Compound

SOxSulphur Oxide

OzoneTrioxygen O3

NOxMono-nitrogen Oxides

PM2.5Particulate Matter

PM10Particulate Matter

intake airexhaust air

supply air extract air

CAQ350

NOXFilter

CAQ350

NOXFilter

intake airpre-filtered air

exhaust air

supply air

extract air

Zehnder NOX Filters

Ventilation Strategies for new homesOutdoor air pollution impacts the indoor environment through opening windows and doors or through purposely installed ventilation systems. Ventilation is a requirement of the Building Regulations under Part F and is in place to protect people living within dwellings. Given the increasing external pollution, ventilation strategies in both new and existing homes should now be considered crucial to well-being and health and not just about energy effi ciency.

Whole House Heat Recovery Ventilation is widely considered to improve indoor air quality and can help reduce the symptoms of respiratory illnesses where clean fresh air is continuously drawn into the home.

Decorative Radiators Comfortable indoor ventilation Heating and cooling ceiling systems Clean air solutions

Indoor Air QualityThe impact of poor indoor air quality on health is high on the agenda. This has resulted in increased planning requirements placed on residential dwellings in urban areas and many Local Authorities declaring areas within their boroughs as Air Quality Management Areas (AQMA).

In a recent report, DEFRA estimates that NO2 pollution causes up to 23,500 premature deaths a year (UK) and that traffi c pollution is

contributing to the rising number of children with asthma. Up to 3000 schools and many homes, including those planned to be built, are in areas that breach the WHO (World Health Organisation) air pollution limits.

This includes levels of hazardous NO2 that are above the stringent levels set out in the EU Directive 2008/50/EC – European Union Air Quality and Clean Air for Europe 2008.

Air Quality Planning Restrictions and Air FiltrationWhere external air pollutants exceed the recommended rates set, developers and consulting engineers need to meet specifi c requirements, including specifying NO2 fi lters up to including the fi rst three storeys of a new development.

A specialist fi lter system can be used with MVHR systems in domestic applications to reduce Nitrogen Dioxide (NO2) and other common pollutants to the home and comply with the requirements of the EU Directive.

NOX Filter Positioning - Designing for long term performance

Features and Benefits

• High grade NOX fi ltration to help meet the requirements of Air Quality Planning Regulations

• Five options to suit all MVHR models – including Zehnder ComfoAir Q and Greenwood Vireo units

• Sized to minimise additional energy consumption from the system

• Long life span between 2-5 years

• Unique Feature to Zehnder NOX Filters – Integrated Sight Glass for easy and quick maintenance review on site

Product Data

Zehnder can provide solutions to service all property sizes with fi ve unit options

Compatible with Greenwood Vireo HR155WM, Vireo HR185WM and Zehnder ComfoAir Q 350/450 and 600

Size L x W x H (mm)

Spigot connections(mm)

Weight(net)

Airfl ow(l/s)

Access Panel Recommended(mm)

425 x 375 x 145

63

8.8Pa 9.9Pa 34.8Pa

34.8Pa

125 250 500 1K 2K 4K 8K

6dB

34.8Pa

34.8Pa

34.8Pa

4dB 2dB 2dB 2dB 3dB 8dB 5dB

725 x 375 x 145

725 x 375 x 195

725 x 550 x 195

1025 x 700 x 195

125 / 204 x 60

125 /204 x 60

150 / 160 / 220 x 90

150 / 160 / 220 x 90

180

21kg

26kg

28kg

42kg

62kg

21l/s

40l/s

60l/s

80l/s

150l/s

575 x 425

775 x 425

775 x 425

775 x 600

1075 x 750

Unit Option

Sound Attenuation Spectrum NOx 21 – NOx150

Pressure Drop Performance

8l/sAirfl ow 13l/s 21l/s 40l/s 60l/s 80l/s 150l/s

NOx21

Frequency Hz

NOx21

NOx150

NOx60

NOx40

With G3 Pre fi lter

NOx40

NOx80

NOx60

NOx80

NOx150

Filter in new/good condition

Filter in used condition withsome life remaining

Filter needs replacing

The fi lter cartridge is made up of a series of G3 and Carbon Filters. The Carbon fi lter has colour cell grading to show when it needs replacing.

The Zehnder NOX fi lter has a unique glass panel located as shown on the base. This eliminates the need to open the entire front panel to check the fi lter status.

On-site just simply and quickly open the access hatch and view the colour status.

We design our systems and place the NOX fi lters AFTER the MVHR system.

Why?G3 Filters located within the MVHR unit will remove airborne particles before reaching the NOX fi lter.

Since the air is pre-fi ltered, the lifetime space of the NOX fi lter can be improved, helping reduce the maintenance cycle and costs.

Pollen

VOCVolatile Organic Compound

SOxSulphur Oxide

OzoneTrioxygen O3

NOxMono-nitrogen Oxides

PM2.5Particulate Matter

PM10Particulate Matter

NO2Nitrogen Dioxide

intake airexhaust air

supply air extract air

CAQ350

NOXFilter

CAQ350

NOXFilter

intake airpre-filtered air

exhaust air

supply air

extract air

MVHR is a holistic whole house ventilation solution. We focus design on a total system approach to ensure the best performance is achieved and the elimination of noise and costs associated with complaints and call backs due to poor performance when installed.

Our NOX fi lters have been designed to ensure they;

• provide the crucial levels of fi ltration required

• minimise impact on the airfl ow performance of the system

• are long lasting, helping reduce maintenance cycles and costs

Unique Filter View Panel

If you need to speak to someone or have a question to ask us, there are several ways of getting in touch.

Phone Head Offi ce: 01276 605800Customer Services: 01276 408404Technical Services: 01276 408402

Fax Head Offi ce : 01276 683315Email: orders@zehnder.co.uk Website: www.zehnder.co.uk

© Copyright Zehnder Group UK Ltd 2016

All information believed to be correct at the time of going to press. E&OE. All goods are sold according to Zehnder Group UK Ltd’s Standard Conditions of Sales (available on request).

All dimensions are in millimetres unless otherwise shown. Zehnder Group UK reserves the right to change specifi cations and prices without prior notice.

Zehnder Group UK LtdRegistered offi ce: Unit 4,Watchmoor Point, CamberleySurrey GU15 3ADRegistered in England No.2296696

Contact Information

The units should be installed horizontally and in accordance with the Domestic Ventilation Compliance Guide (England & Wales) and product manual.

Accessories and Spares

The NOX fi lters must be maintained for the best performance. Replacement G3 fi lters and active carbon fi lters are available.

G3/Carbon Filter Service Packs

NOX21FIL

NOX40FIL

NOX60FIL

NOX80FIL

NOX150FIL

Dimensions

Installation