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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

Summary of Contents for MRXBOXAB-ECO3-OHSW

Page 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...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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 ...

Page 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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