NuAire MAB-204X60 User manual

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16. 03. 23. Document Number 671973
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
MAB
Metal Air Brick
Installation Manual
1.0 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.
1 Typical Installation
2.0 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: MAB = Metal Air Brick
2. Duct Size: 204v60 = 204 x 60 mm
220X90 = 220 x 90 mm
220X126 = 220 x 126 mm
3. Colour: BR = Brown (RAL 8011)
BK =Black (RAL 9017)
COT =Cotswold (RAL 1014)
G = Grey (RAL 7046)
TC =Terracotta (RAL 8004)
WH = White (RAL 9016)
4. Bezel B= Bezelled version
blank = Non-bezelled version
2.2 Kit Contents
1x Metal Air Brick (MAB)
4x Self-Tap Screw (180404)

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16. 03. 23. Document Number 671973
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
MABInstallation Manual
2.3 Dimensions (mm)
2.3.1 Dimensional Diagram
2 MAB Dimensions (mm)
A
Plastic duct connector
Metal cavity duct
Metal air brick
Self-Tap Screw
180404 (No.7 or Ø3.9)
Seal joint (all around)
Self-Tap Screw
180404 (No.7 or Ø3.9)
G
H
C
B
F
D
25
E
12
ASSEMBLY ISOMETRIC VIEW ASSEMBLY SECTIONED SIDE VIEW
METAL AIR BRICK DIMENSIONS
TOP VIEW
FRONT VIEWSIDE VIEW
DETAIL C
Seal relief gaps (both sides)
2.3.2 Dimensions Table
Unit Code Dimensions (mm)
A B C D E F G H
MAB-204X60 60 208 64 612 560 25 n/a n/a
MAB-220X90 60 224 94 613 560 24 n/a n/a
MAB-220X126 60 224 130 613 560 25 n/a n/a
MAB-204X60-B 62 209 65 614 563 25 111 255
MAB-220X90-B 62 225 96 615 563 24 141 271
MAB-220X126-B 62 227 133 615 563 25 177 271
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

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16. 03. 23. Document Number 671973
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
MABInstallation Manual
3.0 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.
4.0 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.
5.0 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.
6.0 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 [phone]
[email protected]
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.

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16. 03. 23. Document Number 671973
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
MABInstallation Manual
NOTES