NuAire MRXBOXAB-ECO3B-AESW Installation Manual

NuAire MRXBOXAB-ECO3B-AESW Installation Manual

Mechanical ventilation units with heat recovery for wall mounting, standard/opposite hand unit

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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.
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-ECO3B-AESW (Standard Hand Unit)
MRXBOXAB-ECO3B-AEHSW (Opposite Hand Unit)
MRXBOXAB-ECO5B-AESC (Standard Hand Unit)
MRXBOXAB-ECO5B-AEHSC (Opposite Hand Unit)
MRXBOXAB-ECO5B-AESW (Standard Hand Unit)
MRXBOXAB-ECO5B-AEHSW (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.
Nuaire would always recommend a site specific risk assessment by a
competent person to determine if any additional PPE is required.
19. 11. 21. Document Number 672008
1

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Summary of Contents for NuAire MRXBOXAB-ECO3B-AESW

  • Page 1 Nuaire would always recommend a site specific risk assessment by a competent person to determine if any additional PPE is required. Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 19. 11. 21. Document Number 672008...
  • Page 2: Mechanical Installation

    Care must be taken to ensure the unit is installed true in all 3 dimensions. Failure to do so may result in overflow from the internal condensation drip tray. Wall Bracket Installation Dimensions 704 crs Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 19. 11. 21. Document Number 672008...
  • Page 3: Condensate Drain

    5 fall Collar running to SVP. Condensate drain, uninsulated drain pipe with min 5° fall running to SVP. Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 19. 11. 21. Document Number 672008...
  • Page 4 8 l/s should be at least the whole dwelling Bathroom 8 l/s ventilation rate given Sanitary 6 l/s in table 2. Accommodation Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 19. 11. 21. Document Number 672008...
  • Page 5 227 CR S Ø150.0 Condensate drain Condensate drain connection connection (standard configuration) (opposite hand configuration) Condensate drain connection on centre line of unit Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 19. 11. 21. Document Number 672008...
  • 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 19. 11. 21. Document Number 672008...
  • 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 19. 11. 21. Document Number 672008...
  • Page 8 Additional switch should be used local to the wet rooms (Section 4.2). Adjustment only to be carried out by qualified person, isolate power before removing cover. Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 19. 11. 21. Document Number 672008...
  • Page 9: Maintenance

    Support for further information on items not listed above. MVHR unit cover 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.
  • Page 10 Installation Manual MRXBOXAB-ECO3B-AE(H)SW & MRXBOXAB-ECO5B-AE(H)(SC/SW) NOTES Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 19. 11. 21. Document Number 672008...
  • Page 11 Installation Manual MRXBOXAB-ECO3B-AE(H)SW & MRXBOXAB-ECO5B-AE(H)(SC/SW) NOTES Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 19. 11. 21. Document Number 672008...
  • Page 12 Installation Manual MRXBOXAB-ECO3B-AE(H)SW & MRXBOXAB-ECO5B-AE(H)(SC/SW) NOTES Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk 19. 11. 21. Document Number 672008...

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