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28. 10. 20. Document Number  671684

Nuaire | 

Western Industrial Estate 

Caerphilly 

CF83 1NA 

|

 

nuaire.co.uk

MRXBOX95(AB)-WM1

Installation Manual

3.8 Ducting Arrangements - Standard Unit Configuration

3.8.1 Circular Ducting

11 

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.

3.8.2 Rectangular Ducting 

12 

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 MRXBOX95-WM1

Страница 1: ...less 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 ...

Страница 2: ...neration For a vibration free result the unit must be mounted to a solid wall The unit must remain switched on at all times to maintain ventilation within the dwelling Turning the unit off will cause long term damage to the unit and building fabric These units are not recommended for loft mounting 3 1 Wall Mounting The unit is designed for wall mounting only on a solid wall A gypsum block or stud ...

Страница 3: ...ing design drawing for further information Figures 11 12 Ducting joints must be sealed with silicone type sealant and shall be adequately and reliably fixed to the appliance 3 5 Ventilation Flow Rates ADF 2010 Extract Ventilation Rates Room Minimum High rate Minimum Low Rate Kitchen 13 l s Total extract rate should be at least the whole dwelling ventilation rate given in table 2 Utility Room 8 l s...

Страница 4: ...ternal volume of the dwelling heated space m3 Step 2 Calculate the whole dwelling extract ventilation rate by summing the individual room rates for minimum high rate from ADF 2010 Extract Ventilation Rates table For sanitary accommodation only as an alternative the purge ventilation provisions given in ADF 2010 can be used where security is not an issue In this case minimum high extract rate for t...

Страница 5: ... Valve mounted unit Nuaire wall MVHR DRAIN Condensate drain uninsulated drain pipe with min 5o fall running to SVP Insulated extract duct 3 8 2 Rectangular Ducting 12 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 6: ... the original cord or greater 4 1 Electrical Information Voltage 240V 1ph 50Hz Consumption 1 2 Amp 4 2 Optional Connections Ecosmart Control Figure 13 The IDC plug in connectors are provided for the connection of compatible sensors 4 2 1 PCB TEMP Connection to Remote Fail Indicator Ref MRXBOX95LH RFI Optional 24V 0V SW FAN 1 FAN 2 Internal Wiring Connection to Ecosmart Sensors Run on Trickle Boost...

Страница 7: ...Post commissioning remove adhesive backing under this section Run on Trickle Boost Trickle Boost Power Fan Failure 16 Unit Control On Front Panel Standard Configuration Only 5 1 Thermal Bypass Non AB models In the event of excessive outside temperatures and to help prevent over heating the supply fan will automatically reduce to a trickle speed Under these circumstances additional ventilation meas...

Страница 8: ...gregated into mixed plastic and widely recycled Cardboard packaging wood and other paper components can be largely recycled or fully processed in energy from waste centres Filter Disposal Cardboard framed filters should be fully processed in energy from waste centres contact your local civic amenity site household waste recycling centre regarding metal wire framed filters Remaining Items can be fu...

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