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30. 06. 20. Document Number  671958

Nuaire | 

Western Industrial Estate 

Caerphilly 

CF83 1NA 

|

 

nuaire.co.uk

MRXBOXAB-ECO5-1Z

Installation Manual

3.9 Ducting Arrangements - Standard Unit Configuration

3.9.1 Circular Ducting

12 

13 

Typical Circular Ducting Arrangement For Wall Mounted Units

Typical Rectangular Ducting Arrangement For Wall Mounted Units

3.9.2 Rectangular Ducting

New

ALSO FROM NUAIRE - 

range of thermal ducting,

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

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*.

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.

*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.

Top of ceiling void.

Air supply to 

bedrooms 

in ceilings.

via Air Valve 

*Insulated 

extract duct.

*Insulated 

extract duct.

MVHR unit.

Nuaire

MVHR-DRAIN

Condensate drain, uninsulated 

drain pipe with min 5

o

 fall running to SVP.

MVHR unit.

Nuaire

MVHR-DRAIN

Condensate drain, uninsulated 

drain pipe with min 5

o

 fall running to SVP.

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*.

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.

*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.

Top of ceiling void.

Air supply to 

bedrooms 

in ceilings.

via Air Valve 

*Insulated 

extract duct.

*Insulated 

extract duct.

MVHR unit.

Nuaire

MVHR-DRAIN

Condensate drain, uninsulated 

drain pipe with min 5

o

 fall running to SVP.

MVHR unit.

Nuaire

MVHR-DRAIN

Condensate drain, uninsulated 

drain pipe with min 5

o

 fall running to SVP.

Summary of Contents for MRXBOXAB-ECO5-1Z

Page 1: ...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 guard...

Page 2: ...warmer months 1 2 3 Airflow Through unit Standard Unit Airflow Through OH unit Opposite Hand Unit Transport Fixings 3 0 MECHANICAL INSTALLATION Installation must be carried out by competent personnel...

Page 3: ...o a stud partition MDF fixed behind the plasterboard using the wall MVHR DRAIN brackets Condensate drain uninsulated drain pipe with min 5o fall running to SVP Valve in ceiling Unit weight 76kG 3 3 Co...

Page 4: ...all other 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 appropri...

Page 5: ...at 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 fo...

Page 6: ...rValve Top of ceiling void Top of ceiling void Air supply to bedrooms in ceilings via AirValve Insulated extract duct Insulated extract duct MVHR unit Nuaire MVHR DRAIN Condensate drain uninsulated dr...

Page 7: ...ctor Ecosmart Device Connector Ecosmart Device Connector MAINS 230V 50Hz N L 3 Position Switch Ancillary code MRXBOX95 3SWITCH Blue Green yellow Brown Black Supply cord from unit Grey L 1 2 Fuse 5A MA...

Page 8: ...it Control On Front Panel Standard Configuration Only Unit Control On Front Panel Standard Configuration Only 5 2 Status Indication The status of the unit is indicated by a series of LED s on the fron...

Page 9: ...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 description of...

Page 10: ...10 30 06 20 Document Number 671958 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk MRXBOXAB ECO5 1Z Installation Manual NOTES...

Page 11: ...11 30 06 20 Document Number 671958 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk MRXBOXAB ECO5 1Z Installation Manual NOTES...

Page 12: ...12 30 06 20 Document Number 671958 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk MRXBOXAB ECO5 1Z Installation Manual NOTES...

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