NuAire MRXBOX-DB2 User manual

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31. 07. 20. Document Number 671825Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
MRXBOX-DB(2/3/5)
Distribution Boxes For Acoustic Enclosures
Installation Manual
1.0 SAFETY INFORMATION
• This appliance should not be used by children or persons with reduced physical, sensory or
mental capabilities or lack of experience and knowledge, unless they have been given supervision
or instruction concerning the safe use of the appliance by a person responsible for their safety.
Children shall not play with the appliance. Cleaning and user maintenance shall not be carried
out by children.
1.1 Symbols
REFER TO INSTRUCTION MANUAL
Read and understand the installation and maintenance manual before installing,
operating 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.
•Semi Fingerless Gloves (Marigold PU3000 3DO or equivalent)
- when conducting light work on the unit requiring tactile
dexterity.
•Safety Glasses - when conducting any cleaning/cutting operation
or exchanging filters.
•Reusable Half Mask Respirators - when replacing filters which
have been in contact with normal room or environmental air.
Nuaire would always recommend a site specific risk assessment by a
competent person to determine if any additional PPE is required.
2.0 INTRODUCTION
Nuaire’s Distribution Boxes are designed to be used in conjunction with
Nuaire’s 1Z and AE acoustically enclosed wall mounted MVHR units,
the product offers improved sound levels and ducting configurations.
1 Unit Overview
Toggle latch
Cover plate
Gasket
Latch plate
Split pin
220mm x 90mm spigot
3.0 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.
3.1 Ducting
The metal knock outs and foam lining should be removed from any
positions that are to be ducted; the 220mm x 90mm spigots supplied
can then be fitted to these locations using the self-tapping fixings also
supplied. If no spigot is to be fitted the knock out and foam should be
left in place and the area blanked off using the cover plates and self-
tapping screws supplied (Figure 1).
A bead of silicone must be applied to the perimeter of all spigots
and cover plates fitted to prevent leakage.

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31. 07. 20. Document Number 671825Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
MRXBOX-DB(2/3/5)Installation Manual
3.2 Dimensions (mm)
Dimensions for the MRXBOX-DB2, MRXBOX-DB3 & MRXBOX-DB5 Distribution Boxes are shown below in Figure 2.
3.3 Connection To MVHR Unit
This section covers how to connect the Distribution Box to the
acoustically enclosed MVHR unit purchased separately, please refer
to the documentation supplied with the MVHR unit for specific
installation instructions covering the complete assembly.
The Distribution Box can be fitted with the side connection points
towards the front or rear of the assembly depending on the duct
requirements.
The four adhesive backed gaskets supplied should be affixed to the
plastic clamping plates situated on the top panel of the acoustic
enclosure, then fix the two toggle latches provided to the sides of the
enclosure top panel using the fixings that have been used to blank off
the holes.
The Distribution Box can then be placed on top of the enclosure and
clamped in place by fastening the toggle latch to the latch plate, to
prevent accidental un-clamping the split pins provided should be fitted
to each toggle clamp once in place.
After installation is completed access to the toggle latches
clamping the Distribution Box in place should be accommodated to
allow for disassembly if required at a later date.
If the distribution box is to be used with an AE product the
installation must allow for the front cover of the enclosure to be
easily removed for periodic maintenance to be carried out.
4.0 WARRANTY
The 5year warranty starts from the day of delivery and includes parts
and labour for the first year. The remaining period covers replacement
parts only.
This warranty is void if the equipment is modified without
authorisation, is incorrectly applied, misused, disassembled, or not
installed, commissioned and maintained in accordance with the details
contained in this manual and general good practice.
The product warranty applies to the UK mainland and in accordance
with Clause 14 of our Conditions of Sale. Customers purchasing from
outside of the UK should contact Nuaire International Sales office for
further details.
Failure to maintain the unit as recommended will invalidate the
warranty.
1212
1 50
7 0
= =
738 for MRXBOX-DB(3/5)
690 for MRXBOX-DB2 515 for MRXBOX-DB(3/5)
439 for MRXBOX-DB2
426 CRS for MRXBOX-DB(3/5)
378 CRS for MRXBOX-DB2
111 for MRXBOX-DB(3/5)
72 for MRXBOX-DB2
Acoustically enclosed MVHR unit
2 Unit Dimensions
5.0 END-OF-LIFE AND RECYCLING
Where possible Nuaire use components which can be largely recycled
when the product reaches its end-of-life:
•Fans, motors, controls, actuators, cabling and other electrical
components can be segregated into WEEE recycling streams.
•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.
IMPORTANT
Ensure that Nuaire product is made safe from any electrical
/ water / refrigerant supplies before dismantling commences.
This work should only be undertaken by a qualified person in
accordance with local authority regulations and guidelines,
taking into account all site based risks.
6.0 AFTER SALES AND 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]
[e-mail]

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31. 07. 20. Document Number 671825Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
MRXBOX-DB(2/3/5)Installation Manual
NOTES

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31. 07. 20. Document Number 671825Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
MRXBOX-DB(2/3/5)Installation Manual
NOTES