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28. 07. 21. Document Number  671856

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

EMC Directive

 

2014/30/EU

LVD Directive

 

2014/35/EU

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.

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-ECO3-OHSW

Страница 1: ... 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 Thi...

Страница 2: ...e unit and building fabric 1 Airflow Through unit Standard Unit Extract air from house Intake air Exhaust air from outside to outside from house to house Supply air Intake air from outside Extract air from house Supply air to house Exhaust air from house to outside 2 Airflow Through OH unit Opposite Hand Unit Extract air from house Intake air Exhaust air from outside to outside from house to house...

Страница 3: ...uld be positioned on a 25mm minimum thickness MDF panel that is vertically fixed across the roof trusses to form a solid false wall Add additional vertical supports if necessary Use the Anti vibration tray assembly MRXBOX AV 3 5 including the angle brackets to be purchased separately 8 Angled Brackets Loft Mounted Installation 3 3 Off Site Cupboard Construction For off site constructed cupboards a...

Страница 4: ...led taut A maximum of 300mm should be used on each leg To prevent condensation on the outside of the outside air inlet duct and the air outlet duct from the unit these ducts should be insulated Ducting must be installed in such a way that resistance to airflow is minimised Bends should be kept to a minimum A minimum distance of 300mm between the appliance and any bends in ductwork is recommended I...

Страница 5: ... as follows The maximum whole dwelling extract ventilation rate e g boost should be at least the greater of step 1 and step 2 Note that the maximum individual room extract rate should be at least those given in ADF 2010 Extract Ventilation Rates table The minimum air supply rate should be at least the whole building ventilation rate found in step 1 For Scotland refer to BRE Digest 398 For further ...

Страница 6: ... Air Valve mounted unit Nuaire wall MVHR DRAIN Condensate drain uninsulated drain pipe with min 5o fall running to SVP Insulated extract duct 3 10 2 Rectangular Ducting 14 Typical Rectangular Ducting Arrangement For Wall Mounted Units 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 betwe...

Страница 7: ...connected to the underside of the MVHR unit within The cable should be fed through rubber blanking plug to provide a seal when the cover is re fitted 4 3 Wiring Diagrams 4 3 1 Unit Serving Kitchen And Bathroom 16 Wiring Diagram Unit Serving Kitchen And Bathroom ECO3 3A Fuse BS 1362 ECO5 5A Fuse BS 1362 MAINS 230V 50Hz Light Room Light Switch Double Pole N L 3 Pole Isolator Kitchen Switch Blue Brow...

Страница 8: ... to solely boost the unit Additional switch should be used local to the wet rooms Section 4 3 3 5 2 Status Indication The status of the unit is indicated by a series of LED s on the front cover The variants are listed below 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 20 Unit Control On Front Pan...

Страница 9: ...ulations and guidelines taking into account all site based risks 9 0 AFTER SALES AND REPLACEMENT PARTS For technical assistance or further product information including spare parts and replacement components please contact the After Sales Department If ordering spares please quote the serial number of the unit together with the part number if the part number is not known please give a full descrip...

Страница 10: ...10 28 07 21 Document Number 671856 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk MRXBOXAB ECO 3 5 SC SW Installation Manual NOTES ...

Страница 11: ...11 28 07 21 Document Number 671856 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk MRXBOXAB ECO 3 5 SC SW Installation Manual NOTES ...

Страница 12: ...12 28 07 21 Document Number 671856 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk MRXBOXAB ECO 3 5 SC SW Installation Manual NOTES ...

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