NuAire MRXBOX-DB2 Installation Manual Download Page 1

1

31. 07. 20. Document Number  671825

Nuaire | 

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. 

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.

Reviews: