NuAire MRXBOX-ECO Installation Manual
NuAire MRXBOX-ECO Installation Manual

NuAire MRXBOX-ECO Installation Manual

Mechanical ventilation units with heat recovery for wall mounting
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1.0 SAFETY INFORMATION
The provision of the electrical supply and the connection of the unit to the mains must be
carried out by a qualified electrician.
Isolate from power supply before removing any covers. During installation / maintenance ensure
all covers are fitted before switching on the mains supply.
All-pole disconnection from the mains as shown in the wiring diagram must be incorporated
within the fixed wiring and shall have a minimum contact separation of 3mm in accordance with
latest edition of the wiring regulations.
This unit must be earthed.
This MRXBOX unit is fitted with surge protection. If RCD protection is used, a G or S type RCD is
recommended.
Ducting must be securely fixed with screws to the spigot to prevent access to live parts. Duct
runs terminating close to the fan must be adequately protected by suitable guards.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualified persons in order to avoid a hazard.
Precautions must be taken to avoid the back-flow of gases into the room from the open flue of
gas or other fuel-burning appliances.
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 Hazard 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.
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
MRXBOXAB-ECO3-SW (Standard Hand Unit)
MRXBOXAB-ECO3-OHSW (Opposite Hand Unit)
MRXBOXAB-ECO5-SC (Standard Hand Unit)
MRXBOXAB-ECO5-OHSC (Opposite Hand Unit)
MRXBOXAB-ECO5-SW (Standard Hand Unit)
MRXBOXAB-ECO5-OHSW (Opposite Hand Unit)
Mechanical Ventilation Units with Heat Recovery for Wall Mounting
Installation Manual
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.
25. 01. 23. Document Number 671856
EMC Directive
2014/30/EU
LVD Directive
2014/35/EU
1

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Summary of Contents for NuAire MRXBOX-ECO

  • Page 1 •Always include the operating instructions when you pass the have been in contact with normal room or environmental air. product on to third parties. Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 25. 01. 23. Document Number 671856...
  • Page 2: Mechanical Installation

    Fix the mounting bracket to the wall (Figure 3) and use the wall MRXBOX-AV(3/5) should be followed. mounted bracket to mount the unit on (Figure 4). Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 25. 01. 23. Document Number 671856...
  • Page 3: Condensate Drain

    (MRXBOX-AV(3/5)) including the angle brackets, to be unit and a typical example of a purchased separately. “U” trap drainpipe (Standard configuration only). Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 25. 01. 23. Document Number 671856...
  • Page 4 Bends should be kept to a minimum. A minimum distance of 300mm between the appliance and any bends in ductwork is recommended. Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 25. 01. 23. Document Number 671856...
  • Page 5: Front View

    fitted in conjunction with MRXBOX-AV(3/5) Unit Weight Top View ECO3 = 24Kg ECO5 = 25Kg Spigots 4 x 150mm dia. Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 25. 01. 23. Document Number 671856...
  • Page 6 5 fall running to SVP. ALSO FROM NUAIRE - range of thermal ducting, an all-in-one insulated ducting system (see installation document 671780) Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 25. 01. 23. Document Number 671856...
  • Page 7: Electrical Installation

    Black Volt free Summer / Winter Switch (supplied with ventilation unit) Polarity is inconsequential Warning! - Do not connect to mains! Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 25. 01. 23. Document Number 671856...
  • Page 8: Maintenance

    The display on the unit control panel will not indicate when a higher speed setting has been triggered by an external source, such as an ES-PIR2 etc. Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 25. 01. 23. Document Number 671856...
  • Page 9: Warranty

    Please call After Sales Support for further information on items not listed above. Filter being Ensure that Nuaire product is made safe from any electrical / water Filter being removed / refrigerant supplies before dismantling commences. This work...
  • Page 10 MRXBOXAB-ECO(3/5)-(SC/SW) Installation Manual NOTES Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 25. 01. 23. Document Number 671856...
  • Page 11 MRXBOXAB-ECO(3/5)-(SC/SW) Installation Manual NOTES Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 25. 01. 23. Document Number 671856...
  • Page 12 MRXBOXAB-ECO(3/5)-(SC/SW) Installation Manual NOTES Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 25. 01. 23. Document Number 671856...

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