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28. 10. 20. Document Number  671684

Nuaire | 

Western Industrial Estate 

Caerphilly 

CF83 1NA 

|

 

nuaire.co.uk

MRXBOX95-WM1 (Standard Unit)

MRXBOX95-WM1 -OH (Opposite Hand Unit)  

MRXBOX95AB-WM1 (Standard Unit)

MRXBOX95AB-WM1-OH (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 electrical supply 

must be carried out by a qualified electrician in accordance with latest edition of the wiring 

regulations.

• 

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. The replacement cord must be of the same 

technical specification as the original cord or greater.

• 

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 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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