nuaire Metal Air Brick Installation Guide
- October 30, 2023
- Nuaire
Table of Contents
MAB
Metal Air Brick
Installation Manual
SAFETY INFORMATION
1.1 Symbols
REFER TO INSTRUCTION MANUAL
Read and understand the installation and maintenance manual before installing
or maintaining this product.
1.2 Important Information
This manual contains important information on the safe and appropriate
assembly, transport, commissioning, operation, maintenance, disassembly and
simple troubleshooting of the product.
While the product has been manufactured according to the accepted rules of
current technology, there is still a danger of personal injury or damage to
equipment if the following general safety instructions and the warnings
contained in these instructions are not complied with.
- Read these instructions completely and thoroughly before working with the product.
- Keep these instructions in a location where they are accessible to all users at all times.
- Always include the operating instructions when you pass the product on to third parties.
1.3 Personal Protective Equipment
The following minimum Personal Protective Equipment (PPE) is recommended when
interacting with Nuaire product:
- Protective Steel Toed Shoes – when handling heavy objects.
- Full Finger Gloves (Marigold PU800 or equivalent) – when handling sheet metal components.
Nuaire would always recommend a site specific risk assessment by a competent person to determine if any additional PPE is required.
INTRODUCTION
The Metal Air Brick (MAB) range of products addresses fire safety regulations
in high-rise buildings with a storey at least 18m above ground level to
Regulation 7(2) and Building Regulations, Approved Document B.
In Scotland this height has been lowered to a storey more than 11m above
ground level in accordance with Building (Scotland) technical handbook 2019:
domestic and non-domestic, Section 2.7.
The building regulation 7(2) requires any materials used for the external
wall, or attachments to the wall, have at least a classification ‘A2 – s1, d0’
to BS EN 13501-1 to reduce the risk of fire spread over the wall.
The metal air brick range of products meet this fire class requirement. With
the base material being considered fire class ‘A1’ without the need for
testing as per 96/603/EC European Commission directive “materials to be
considered as reaction to fire Class A without the need for testing”.
All air bricks are available in a variety of powder coated RAL colours to
maintain the external appearance of the building. All powder coated options
are fire class ‘A2 – s1, d0’ to BS EN 13501-1.
It is strongly recommended this product be considered in any building design
with a storey 11m (or above) ground level. Even if the building regulation
states ‘at least 18m’.
2.1 Code Description
| 1 | – | 2 | – | 3 | – | 4 |
|---|---|---|---|---|---|---|
| MAB | – | 220X126 | – | WH | – | B |
1. Range:
2. Duct Size:| MAB
204v60
220X90
220X126| = Metal Air Brick
= 204 x 60 mm
= 220 x 90 mm
= 220 x 126 mm
---|---|---
3. Colour:| BR
BK
COT
G
TC
WH| = Brown (RAL 8011)
= Black (RAL 9017)
= Cotswold (RAL 1014)
= Grey (RAL 7046)
= Terracotta (RAL 8004)
= White (RAL 9016)
4. Bezel| B
blank| = Bezelled version
= Non-bezelled version
2.2 Kit Contents
1x Metal Air Brick (MAB)
4x Self-Tap Screw ( 180404)
2.3 Dimensions (mm)
2.3.1 Dimensional Diagram
2.3.2 Dimensions Table
| Unit Code | Dimensions (mm) |
|---|---|
| A | B |
| MAB-204X60 | 60 |
| MAB-220X90 | 60 |
| MAB-220X126 | 60 |
| MAB-204X60-B | 62 |
| MAB-220X90-B | 62 |
| MAB-220X126-B | 62 |
2.4 Assembly Components
The following table notes what components should be used with each size of the
metal air brick.
| Unit Code | Duct Connector | Metal Cavity Duct |
|---|---|---|
| MAB-204X60 | PVC520WH | MCD-204X60-055 |
| MAB-220X90 | PVC920WH | MCD-220X90-055 |
| MAB-220X126 | PVC977WH | MCD-220X126-055 |
| MAB-204X60-B | PVC520WH | MCD-204X60-055 |
| MAB-220X90-B | PVC920WH | MCD-220X90-055 |
| MAB-220X126-B | PVC977WH | MCD-220X126-055 |
MECHANICAL INSTALLATION
Installation must be completed by competent persons, in accordance with good
industry practice and should conform to all governing and statutory bodies
i.e. IEE, CIBSE, etc.
Ensure the metal duct slopes on a negative gradient towards the outside wall
as outlined in the NHBC Domestic Ventilation Compliance Guide.
When metal air bricks are used with metal duct they must be fixed to the
required duct length before installing into the fabric of the building.
The metal air brick/duct must be fire sealed to the inner wall.
- Fit metal air brick to front of metal cavity duct. (Ensuring no paint damage occurs on powder coated finish).
- Secure metal air brick to metal duct using (2x) No. 7 Self Tapping screws (supplied).
- Seal joint between air brick and metal duct using intumescent sealant (ensure a complete seal).
- Fit plastic duct adaptor to rear of metal cavity duct.
- Secure duct adaptor to metal duct using (2x) No. 7 Self Tapping screw (supplied). Ensure the screw position is correct in relation to the hole on the metal duct (Figure 2).
- Seal joint between plastic adaptor and metal duct using a non-setting acrylic sealant (ensure a complete seal).
- Install remaining plastic duct system in accordance with standard practice.
MAINTENANCE
It is important that maintenance checks are recorded and that the schedule is always adhered to, in all cases, the previous report should be referred to.
4.1 Routine Maintenance
- Clean air brick with a damp cloth and treat any areas of corrosion.
- Check for any blockages in the air brick and remove if present.
END-OF-LIFE & RECYCLING
Where possible Nuaire use components which can be largely recycled when the product reaches its end-of-life:
- Sheet metal parts, aluminium extrusion, heating/cooling coils and other metallic items can be segregated and fully recycled.
- EPP, plastic ducting, nylon corner pieces, plastic heat exchangers, packaging material and other plastic components can be segregated into mixed plastic and widely recycled.
- Cardboard packaging, wood, used filters and other paper components can be largely recycled or fully processed in energy from waste centres.
- Remaining Items can be further segregated and processed in accordance with the zero waste hierarchy. Please call After Sales Support for further information on items not listed above.
AFTER SALES & REPLACEMENT PARTS
For technical assistance or further product information, including spare parts
and replacement components, please contact the After Sales Department.
If ordering spares please quote the serial number of the unit together with
the part number, if the part number is not known please give a full
description of the part required. The serial number will be found on the
identification plate attached to the unit casing.
Telephone 02920 858 400
aftersales@nuaire.co.uk
Technical or commercial considerations may, from time to time, make it necessary to alter the design, performance and dimensions of equipment and the right is reserved to make such changes without prior notice.
NOTES
16. 03. 23. Document Number 671973
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |
nuaire.co.uk