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15. 12. 21. Document Number  671985

Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk

MRXBOXAB-ECO2B-AE (Standard Unit) 

MRXBOXAB-ECO2B-AE-H (Opposite hand Unit)

MRXBOXAB-ECO2B-AE-D (Standard Unit) 

MRXBOXAB-ECO2B-AE-HD (Opposite hand Unit)

Mechanical Ventilation Units with Heat Recovery for Wall 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.

• 

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.

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. 

Содержание MRXBOXAB-ECO2B-AE

Страница 1: ...een 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 Impo...

Страница 2: ...TION Installation must be carried out by competent personnel in accordance with the appropriate authority and conforming to all statutory governing regulations All mains wiring must be in accordance with the current I E E Regulations or the appropriate standards Ensure that the mains supply Voltage Frequency and Phase complies with the rating label Please allow a minimum of 350mm in front of the e...

Страница 3: ...ple Collar 9 Condensate Drain MVHR DRAIN Condensate Drain Uninsulated Drain Pipe With Min 5 Fall Running To SVP 3 2 1 Solid Wall Mounting Recommended The MVHR unit fixed to a solid wall construction using the mounting bracket provided Ducting in the ceiling void Side view of unit mounted on the block wall in a cupboard using MVHR DRAIN the wall brackets Condensate drain uninsulated drain pipe with...

Страница 4: ...he BS5440 series of British Standards deals with this issue and currently states that an air intake must be at a minimum distance of 300mm from a gas boiler balanced flue Installers are advised to be aware of the requirements of this standard when installing through the wall supply air ducting 3 6 Ventilation Flow Rates 3 6 1 ADF 2010 Extract Ventilation Rates Room Min high rate Min low rate Kitch...

Страница 5: ...t very high moisture levels are likely to occur Therefore it is advisable that if the installation and building works are complete the unit is left running If the building works are not complete please close the air valves or cover up the air valves to prevent condensation forming in the ductwork and the MRXBOX95 unit due to natural migration of warm air 3 9 Dimensions 11 Dimensions 706 1 1 6 448 ...

Страница 6: ...ain pipe with min 5 o fall running to SVP Insulated extract duct 12 Typical Ducted Arrangement For A Wall Mounted Unit Using Circular Ducting 3 10 2 Rectangular Ducting Exhaust air from kitchen bathroom to outside via air brick Minimum distance as specified in building regulations Intake air from outside via air brick All duct between MVHR unit and atmosphere to be insulated Insulated supply duct ...

Страница 7: ...nly as the connections in Figure 14 are factory fitted The unit is pre wired with a 2 metre fly lead 4 2 Wiring Diagrams 4 2 1 Unit Serving Kitchen Bathroom Optional Controls For further information regarding optional controls contact Nuaire on 02920 858 400 Disconnection from the supply mains must be incorporated within the fixed wiring in accordance with the wiring regulations and shall have a m...

Страница 8: ...e unit will boost to that set by the commissioned boost speed The set point can be found behind the front panel of the unit Figure 17 and is at its least sensitive when turned fully clockwise The sensor is measuring humidity from all the wet rooms at the same time and should not be relied on to solely boost the unit Additional switch should be used local to the wet rooms Section 4 2 Adjustment onl...

Страница 9: ...nternational Sales office for further details Failure to maintain the unit as recommended will invalidate the warranty 9 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 aluminiu...

Страница 10: ...10 15 12 21 Document Number 671985 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk MRXBOXAB ECO2B AE D Installation Manual NOTES ...

Страница 11: ...11 15 12 21 Document Number 671985 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk MRXBOXAB ECO2B AE D Installation Manual NOTES ...

Страница 12: ...12 15 12 21 Document Number 671985 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk MRXBOXAB ECO2B AE D Installation Manual NOTES ...

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