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28. 10. 21. Document Number  671956

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

MRXBOXAB-ECO5

Installation Manual

3.10 Ducting Arrangements - Standard Unit Configuration

3.10.1 Circular Ducting

 

13 

Typical Circular Ducting Arrangement For Wall Mounted Units

Air supply 
to lounge 

in ceilings.

via Air Valve 

Extract air 
from 
kitchen/
bathroom 

in ceilings.

via Air Valve 

Exhaust air from 
kitchen/bathroom to 
outside via louvre grille.

Minimum distance as specified 
in building regulations.

Intake air 
from outside
via louvre grille.

All duct between MVHR 
unit and atmosphere to 
be insulated*.

*Insulated 
supply duct.

Top of ceiling void.

Air supply to 
bedrooms 

in ceilings.

via Air Valve 

mounted unit.

Nuaire wall 

MVHR-DRAIN
Condensate drain, uninsulated 
drain pipe with min 5

o

 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 between MVHR 
unit and atmosphere to 
be insulated*.

*Insulated 
supply duct.

Air supply  
to lounge 

in ceilings.

Extract 

via Air Valve 

air from 
kitchen/
bathroom 

in ceilings.

via Air Valve 

Air supply 
to bedrooms 

in ceilings.

via Air Valve

Top of ceiling void.

mounted unit.

Nuaire wall 

MVHR-DRAIN
Condensate drain, uninsulated 
drain pipe with min 5

o

 fall running to SVP.

*Insulated 
extract duct.

New

ALSO FROM NUAIRE - 

range of thermal ducting,

an all-in-one insulated ducting system 
(see installation document 671780) 

Содержание MRXBOXAB-ECO5

Страница 1: ...en 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 ope...

Страница 2: ... 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 3 1 Wall Mounting If fitting the MVHR in conjunction with a MRXBOX AV5 the hanging brackets supplied with the MVHR are redundant and should not be used The installation instructions supplied with MRXBOX AV5 should be followed The unit is designed for wa...

Страница 3: ...llow for dynamic loads in transit to site If the unit is to be bolted to a plywood or MDF backboard then this must be of sufficient thickness to support the unit s weight and through bolted with washers fitted to spread the load The cupboard manufacturer should satisfy themselves that the method of mounting is sufficient to support the weight of the unit in operation and transit to site The top of...

Страница 4: ... bedrooms This should be used as the default value If a greater level of occupancy is expected add 4 l s per occupant Any air intake terminal must be installed in accordance with the appropriate regulation As a guide the 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 ...

Страница 5: ... MVHR Units MRXBOX units are designed to ventilate the whole dwelling and must not be used during site construction or the clean up period Cement and plaster dust can be abrasive and can affect fan performance and reliability Please ensure that the filters are checked prior to commissioning to ensure there is no build up of dust or debris While the property is drying out very high moisture levels ...

Страница 6: ...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 between MV...

Страница 7: ...Cord From Unit Grey Green Yellow 4 2 2 Unit Serving Kitchen and Bathroom 18 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 Brown Black Optional 3 Speed Switch Supply Cord From Unit Grey Green Yellow 4 2 3 Unit Serving Kitchen and Two Bathrooms 19 Wiring Diagram Un...

Страница 8: ...xtract Supply Extract Humidity adjustment 5 1 Humidity Adjustment This product contains an internal humidity sensor fitted into the air flow extracting from the wet rooms When the unit senses that the humidity exceeds the set point the unit will boost to that set by the commissioned boost speed The set point can be found on the front of the unit Figure 20 and is at its least sensitive when turned ...

Страница 9: ...red The serial number will be found on the identification plate attached to the unit casing Telephone 02920 858 400 aftersales nuaire co uk Technical or commercial considerations may from time to time make it necessary to alter the design performance and dimensions of equipment and the right is reserved to make such changes without prior notice 6 0 MAINTENANCE It is important that maintenance chec...

Страница 10: ...10 28 10 21 Document Number 671956 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk MRXBOXAB ECO5 Installation Manual NOTES ...

Страница 11: ...11 28 10 21 Document Number 671956 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk MRXBOXAB ECO5 Installation Manual NOTES ...

Страница 12: ...12 28 10 21 Document Number 671956 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk MRXBOXAB ECO5 Installation Manual NOTES ...

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