NuAire MRXBOXAB-ECO-LP2B-OH Installation Manual

NuAire MRXBOXAB-ECO-LP2B-OH Installation Manual

Mechanical ventilation unit with heat recovery for ceiling void mounting

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MRXBOXAB-ECO-LP2B (Standard Unit)
MRXBOXAB-ECO-LP2B-OH (Opposite Hand Unit)
Mechanical Ventilation Unit with Heat Recovery for Ceiling Void Mounting
Installation Manual
1.0 SAFETY INFORMATION
The provision of the electrical supply and the connection of the unit to the electrical supply
must be carried out by a qualified electrician in accordance with latest edition of the wiring
regulations.
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. The replacement cord must be of the same
technical specification as the original cord or greater.
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
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.
30. 01. 23. Document Number 671999
1

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Summary of Contents for NuAire MRXBOXAB-ECO-LP2B-OH

  • 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 30. 01. 23. Document Number 671999...
  • Page 2: Mechanical Installation

    •If the condensation pipe is fitted in an unheated space the pipe Please note a clear working space is required around the installed unit should be in insulated to prevent freezing. Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 30. 01. 23. Document Number 671999...
  • Page 3 (This includes all floors, e.g. for a two- story building add the ground and first floor areas). Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 30. 01. 23. Document Number 671999...
  • Page 4 Access Requirements Bypass Bypass Heat Drip tray damper chamber exchanger View from control side End view 735 (Filter access distance) Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 30. 01. 23. Document Number 671999...
  • Page 5 Spigot 3. Intake Extract 885 hole centres Supply Extract 21.5mm condensate pipe View from control side End view 735 (Filter access distance) Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 30. 01. 23. Document Number 671999...
  • Page 6: Electrical Installation

    (BS 1362) Light 3 Pole separation of 3mm. Grey Light Isolator Switch Optional 3 Speed Switch (Double Pole) Kitchen Switch Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 30. 01. 23. Document Number 671999...
  • Page 7: Frost Protection

    Supply Fan Fault Extract Fan Fault Frost Protection Filter Change HX Bypass (AB units only) Speed 1 Speed 2 Speed 1 Speed 2 Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 30. 01. 23. Document Number 671999...
  • Page 8: Maintenance

    Support for further information on items not listed above. the front edge of the filter. Once the filters have been inspected return Ensure that Nuaire product is made safe from any electrical / water or replace them as necessary. / refrigerant supplies before dismantling commences. This work...

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