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Nuaire Catalogue - Mechanical Ventilation & Heat Recovery

1. CODE DESCRIPTION 550 ISO 5801 2007 a es MRXBOX95B LP1 500 ANG P ivi 6 NEE LL LL HS Air Density 1 2 kg m i a FL 11111211 mm 400 1 Multi room supply and extract UL IN LL TTT as 350 IT N 2 Product range a 3 Efficiency E 300 4 Automatic Bypass a 5 Low profile amp 250 i 2 2 200 150 i 3 100 4 50 5 0 0 10 20 30 40 50 60 70 80 90 100 110 120 Air Volume Flow Rate l s MRXBOX95B LP 1 Exhaust terminal Fan speed setting Specific Fan Power Heat Exchange Configuration W U s Efficiency Kitchen 1 Wet Room 100 variable Kitchen 2 Wet Room 100 variable Kitchen 3 Wet Room 100 variable Kitchen 4 Wet Room 100 variable Kitchen 5 Wet Room 100 variable Kitchen 6 Wet Room 100 variable Maximum Sound Power Levels dB re 1pW dBA power consumption 3m Curve Watts 63 125 250 500 1K 2K 4K 8K Curve Open inlet 42 32 25 Open Outlet 65 56 48 Breakout 47 38 30 43 Open inlet 39 27 17 Open Outlet 59 51 42 Breakout 43 22 20 40 Open inlet 30 20 9 Open Outlet 52 42 32 Breakout 33 23 233 4 45 Open inlet 39 42 37 34 26 19 12 Open Outlet 46 50 49 49 46 44 30 21 Breakout 50 49 44 39 29 19 14 23 5 26 Open inlet 36 36 26 24 17 14 Open Outlet 29 43 37 38 35 28 ir 10 Breakout 42 40 33 Z 14 12 The maximum power consumption shown above Watts is consumed on units running continuously not taking into account any
2. See fuse rating 3 Pole isolator us Light ypass switch switch Double Pole Grey Only used on bypass unit Kitchen switch Consultants Specification OPERATION The supply and extract system shall be positioned in the loft space in accordance with the specification The combined supply and extract with heat recovery unit shall supply filtered fresh air to each of the habitable rooms and vitiated air shall be extracted from all wet areas e g bathroom en suite w c kitchen utility rooms etc The supply air shall be pre heated by the warm extract air via the integrated counter flow heat exchanger element The ventilation unit shall vary its speed and therefore the ventilation rate as it receives signals from one of the following e Switched live signal from light remote switches e Optional externally interconnected sensors When signals are received the fan shall alter its speed to adjustable normal and boost rates An adjustable run on facility is integrated into the unit which allows the fans to run on for between 1 and 60 minutes after the signals have been switched off The unit shall have the facility to commission the supply and extract fans via inbuilt minimum and maximum speed adjustment the fans shall have infinitely variable speed control MRXBOX95 LOFT UNIT SPECIFICATION The unit shall be fully insulated providing excellent thermal and acoustic characteristics and shall
3. Summertime boost facility MRXBOX VSC LCD Controller compatible o E M o E E o AA A a 1 nuaire TOTAL CONTROL WITH THE LIGHTEST TOUCH Pri I 7 NO 4 f F I AR 1 tu d i a j p i s ma TEOD th r NER What a breath of fresh air Simple intuitive and discreet the Nuaire LCD control MRXBOX VSC puts you in total control of your MVHR system With a wide range of functions and settings no other product gives you the freedom to tailor performance while saving energy For more details call 029 2085 8500 email enquiries nuaire co uk or visit www nuaire co uk residential NUAIRE S MVHR CONTROL nuaire Touch Screen Controller for MVHR MRXBOX VSC The stylish touch screen wired controller has been designed to make controlling your MVHR ventilation system simple for both the installer and the end user With a 3 2 touch screen display the unit can be surface or semi recess mounted and is compatible with standard 2 gang recess back Dox When installing the MVHR you can commission the unit through the controller and program settings such as air flow frost protection and summer bypass For the end user they will be able to tailor the unit to suit their lifestyle through setting a timed or rising boost or even putting the unit into holiday or night mode to save on energy Wha Can Mode Si 7 F
4. f f A Over 65 Sales Staff Field and office based staff to support you at every stage a 7 e a 3 Gold Star Aftercare Our comprehensive product Fare Serer rrr frre faa O a oeoo i sin e e i warranty and dedicated after sales 2 support gives you peace of mind Nuaire Academy i P f To ensure your installers get the best from i your system and meet Building Regs Nuaire offers BPEC training This is free of charge to our customers delivered from our BPEC Accredited Training Centre b The Full Service Help with product selection detailed parts lists and fast delivery ensure you meet your deadline and budget NUAIRE S MVHR Heat recovery MVHR is fast becoming the most popular strategy for effective whole home ventilation for new build properties A proven low energy highly efficient ventilation method Nuaire s heat recovery MRXBOX range offers all year round ventilation by extracting moisture and supplying fresh air whilst recovering the heat that would otherwise be lost The MRXBOXABS is the first MVHR range on the market with integral automatic summer bypass as standard Nuaire offers the widest range of heat recovery systems in the UK specifically designed to meet building regulations with the best SFPs SAP Q scores With a range of compact wall and loft units designed to suit every size and type of property Nuaire will have a unit to fi
5. Open inlet Open Outlet Breakout Open inlet Open Outlet Breakout Open inlet Open Outlet Breakout Open inlet Open Outlet Breakout 5 8 Open inlet 40 39 25 aa 18 lt 16 lt 16 lt 16 lt 16 Open Outlet 50 48 41 41 36 24 i lt 16 24 Breakout 46 50 29 ail 22 19 lt 16 lt 16 18 The maximum power consumption shown above Watts is consumed on units running continuously not taking into account any heat recovery saving and based on SAP Appendix Q testing NUAIRE S MVHR Sap Appendix Q Test Results MRXBOX95AB WM2 MRXBOX95 WM2 Application Specific Fan Power W I s Heat Exchange Efficiency Energy Saving Trust Best Practice Specific Fan Power W I s Heat Exchange Efficiency Energy Saving Trust Best Practice Compliant Compliant Kitchen 1 Wet Room Kitchen 2 Wet Room Kitchen 3 Wet Room Kitchen 4 Wet Room Kitchen 5 Wet Room 0 84 84 0 87 86 General Arrangement SPIGOT LOCATION amp DUCTING REFERENCES Spigot 1 125mm dia extract air from dwelling Spigot 2 125mm dia exhaust air to outside Spigot 3 125mm dia intake air from outside Spigot 4 125mm dia supply air to house Mounting Bracket on wall and rear of unit Two removable G2 Filters Condensate Tray nuaire Technical MRXBOX95 AB WM2 DIMENSIONS MM Weight 21kg Front View Side View Mounting View from top bracket
6. Spigots 4x 125mm dia 353 Detail of unit control on front panel Ventilation Controls For commissioning refer to user manual Extract Supply Fan Fan I eeee Runon Trickle Boost Trickle Boost Power Fan Failure Tamper proof label following commissioning includes system status indication Electrical Details Please note the electrical connection of the unit must be carried out by a qualified electrician 2 aon nn MRXBOX VSC The unit is supplied with a flexible cord for connection to the i j CONTROL SCREEN mains supply Law COMPATIBLE WITH NOTE This unit must be earthed THIS UNIT The mains power supply cable should be connected to a fixed wiring installation via a fused isolator in accordance with current IEE wiring regulations ELECTRICAL DETAILS MRXBOX95 WM2 Voltage 230V 1ph 50Hz Consumption WM2 1 3 Amp Fuse rating 3 Amp NUAIRE S MVHR Wiring MRXBOX95 AB WM2 UNIT SERVING KITCHEN amp BATHROOM Supply cord ai Green Yellow from unit MAINS 230V N 50Hz L Fuse 2A 3 Pole Light isolator switch Double Pole Optional summer boost switch Kitchen switch UNIT SERVING KITCHEN amp TWO BATHROOMS Supply cord Green Yellow from unit MAINS 230V N SOHz i iii Ma eee Q Room Light LT Lu 3 Pole switches isolator Double Pole Optional summer boost switch Kitchen switch Consultants Specificat
7. The unit casing shall be manufactured in galvanised mild steel natural finish acoustically and thermally insulated to a level appropriate for the application nuaire Screw fastened access panels shall be provided enabling all required maintenance functions to be carried out The unit shall be provided with 4 brackets and threaded mounting points to enable fixing to the ceiling slab Ductwork connection spigots sheet metal or PVC mouldings shall be provided An electrical connection box with terminal strips shall be provided fixed to the outside of the unit casing for connection to mains power and the third party controller The unit does not incorporate a means of electrical isolation N B Control cables should not be routed within 50mm of mains supply cables Unit current rating 1 5 A Fusing requirement 3A Power supply 1 ph 230 V 50 Hz AC This unit must be earthed Controls the unit shall be fitted with a local control having the following functionality e 2 stage speed duty adjustment of the supply and extract fans and single duty adjustment of the recirculation fan Ventilation Controls For commissioning refer to user manual Post commissioning remove adhesive backing under Supply Extract this section Re circ fan F Fan eget Fan 4 3 in z 5 Power Fan Trickle Boost Trickle Boost Failure Boost 230 V AC Bypass actuator fitted and connected internally Bypass control te
8. L shape shaped fixing bracket and AV metal brackets and AV mounts on long sides mount attached to ceiling joist of unit Option 2 Mounted on roof joists using four L shape metal brackets and AV mounts on short sides of unit REMOVABLE casing G4 FILTERS Filter Code 777674 Performance 350 250 wo 200 w lt p a VY 150 w Cc LE i SESS lt lt LR NX 0 10 0 20 0 30 0 40 0 50 0 60 0 Air Volume Flow Rate l s CODE DESCRIPTION MRXBOX95 LOFT PF tf 1 2 3 4 1 Multi room supply and extract heat recovery 2 Product range 3 Efficiency 4 Loft application Sap Appendix Q Test Results MRXBOX95 LOFT Application Specific Fan Power W U s Kitchen 1 Wet Room Heat Exchange Efficiency Energy Saving Trust Best Practice Compliant Yes Kitchen 2 Wet Room Yes Kitchen 3 Wet Room Electrical amp Sound Yes nuaire Maximum Sound Power Levels dB re 1pW dBA power consumption 3m Curve Watts Curve 1 f3 Open inlet 28 Open Outlet 42 Breakout 34 2 51 Open inlet 25 Open Outlet 39 Breakout 22 3 31 Open inlet 2 Open Outlet 35 Breakout 21 4 20 Open inlet 20 Open Outlet 32 Breakout 24 5 12 Open inlet 13 Open Outlet 22 Breakout 22 6 7 Open inlet 28 32 32 20 14 5 lt 10 Open Outlet 32 41 40 37 25 20 12 7 19 Breakout 32 40 37 29 14 11 2 4 lt 10 The max
9. CONTROL BOX mm 132 7 204 4 NUAIRE S MVHR Consultants Specification OPERATION The Nuaire AP MVHR LL RL unit fulfils two separate but related functions and is available as either Left hand Low pressure LL or Right hand Low pressure RL The unit provides continuous ventilation for the apartment supply ventilation fresh outside air ducted to the habitable rooms and extract ventilation vitiated air extracted from the wet rooms and discharged from the building The unit incorporates a high efficiency heat recovery section that transfers heat from the extract air and uses it to warm the supply air This arrangement reduces the ventilation heating load The heat recovery section includes a bypass arrangement that may be used to prevent heat transfer occurring in operational periods when heating is not required The additional function is to provide a percentage of the overall heating requirement for the apartment This heating is provided by a LTHW coil that is mounted within the MVHR unit The outside air supply and vitiated air extract rates are to be determined for each apartment by the methods described in Approved Document F Ventilation Typically for ventilation only there are a number of operating conditions Whole Dwelling Supply Rate WDSR based on the number of bedrooms or 0 3 l s per ma of floor area High extract rate HER based on pre set values for type and quan
10. 1 5 Wall cupboard application a 6 High 2 Model 400 300 200 100 0 Ff N 0 40 80 120 160 180 200 Air Volume Flow Rate l s Appendix Q Test Results MRXBOX95AB WH2 W L s Efficiency Practice Compliant SS 2 Wet Room 0 56 89 Yes Kitchen 3 Wet Room 0 56 89 Yes Kitchen 5 Wet Room 0 67 87 Yes Kitchen 6 Wet Room 0 76 87 Yes Electrical amp Sound Maximum Sound Power Levels dB re 1pW power consumption Watts 1 337 Open inlet 58 56 57 63 57 51 46 45 61 Open Outlet 67 63 65 1S 68 63 56 3B Breakout 61 61 60 63 53 48 40 35 Above noise measured at stated percent of maximum working pressure NUAIRE S MVHR Technical MRXBOX95AB WH2 DIMENSIONS MM Weight 44Kg View from top Ecosmart connection grommets 4 x Spigots 180mm Internal Diameter 200mm External Diameter Front view hk 710 o T Condensate drain B32mm outside 710 Detail of unit control on front panel Humidistat adjustment 585 Dimensions Unit wall mounting bracket position Viewed from back Mounting 5 Fixing Bracket to Points be fitted to the wall Ventilation Controls For commissioning refer to user manual Post commissioning remove adhesive backing under this section OOOO Power fe 060905 Tamper pro
11. 204 Duct Silencer x 1 5mtr 1580mm 65mm THE LEVEL OF SOUND ABSORPTION Silencer Length 125Hz 250Hz 500Hz 500mm 6 cn 18 12 9 2 3 5 12 1 0mtr 0 11 12 13 3 23 15 1 5mtr 6 16 0 32 47 55 20 STATIC PRESSURE DROP IN PASCALS PA VERSUS FLOW RATE L S Approximate l s PVCSIL 500 PVCSIL 1000 PVCSIL 1500 Notes Notes nuaire NUAIRE LIMITED Western Industrial Estate Caerphilly CF83 1NA Residential product orders or enquiry Tel 44 0 29 2085 8500 Fax 44 0 29 2085 8555 info nuaire co uk After sales technical support Tel 44 0 29 2085 8400 Fax 44 0 29 2085 8555 info nuaire co uk www nuaire co uk E nuaireHomes nuaire As part of our policy of continuous product development Nuaire reserves the right to alter specifications without prior notice Telephone calls may be recorded for quality and training purposes 12 14
12. be complete with a multi plate counter flow high efficiency heat exchanger block with a thermal efficiency of up to 95 The heat exchanger shall be protected by G4 grade filters on fresh air inlet and system extract The heat exchanger and filters shall be accessible via the top access panel enabling quick and easy maintenance The unit shall have low energy high efficiency DC fan motor assemblies with sealed for life bearings the impellers shall be backward curved centrifugal type The motors shall be suitable of an ambient temperature of 40 C The unit shall be supplied complete with an insulated condensate drip tray and 21 5mm drain connection The unit shall be suitable for 125mm circular ducting Anti vibration mounts are supplied with each unit to prevent vibration being transmitted to the ceiling timbers The breakout noise level and power requirements shall be as detailed by the unit manufacturer and in accordance with the ventilation equipment schedule nuaire OPTIONAL SUMMER BYPASS MRXBOX95B LOFT The summer bypass facility during the warmer months can reduce the temperature in a room by a few degrees whilst still ventilating that room effectively The bypass damper opens when a 230V switch signal is applied to the unit via a manual switch This opens the damper via a wax actuator When the switch signal is de activated the unit returns to its original state air through the heat exchanger MRXBOX95 LOFT CO
13. equipment schedule INTEGRAL AUTOMATIC SUMMER BYPASS Unit shall be MRXBOX95B LP1 as manufactured by Nuaire The unit shall be fitted with 100 summer bypass as standard The bypass opens automatically when outside temperature exceeds 20 C This shall open the damper via an actuator Outside air supplied through the bypass shall be filtered so the air quality is optimal irrespective of the bypass setting open or closed The unit shall be offered with a 5 year warranty nuaire STD CONTROLS The unit shall have the following functions integrally mounted within the fan unit on a purpose made PCB all such components pre wired and factory fitted by the manufacturer e Independent control of background supply and extract flow rates e Independent control of boost speed supply and extract flow rates e Integral fan failure indication e Integral S L terminal for boost to commissioned level from remote switch e g light switch e Additional S L terminal for 100 boost speed from remote switch e g plate switch e Integral heat exchanger frost protection e Discreet daily run monitor OPTIONAL CONTROLS SENSORS 112527 Normal boost switch HUMISEN 230V Humidistat 230 PIR PIR Sensor with run on timer OPTIONAL ECOSMART SENSORS ANCILLARIES MRXBOX95 PIR boost by Passive Infra Red MRXBOX95 HUM boost by Humidistat MRXBOX95 RFI Remote fail indicator NUAIRE S MVHR MRXBOX95S LHT amp MRXBOX95 LH2
14. flexible cord for connection to the mains supply Ventilation Controls For commissioning refer to user manual NOTE This unit must be earthed The mains power supply cable should be connected to a fixed wiring installation via a fused isolator in accordance with current IEE wiring regulations Post commissioning remove sive backing under adhe Extract Supply this section Fan Fan I eeee Runon Trickle Boost Trickle Boost Power Fan Failure ELECTRICAL DETAILS MRXBOX95 WM1 Voltage 230V 1ph 50Hz Tamper proof label following commissioning includes system status indication Consumption 75W 0 6 Amp Fuse rating 3 Amp NUAIRES MVHR Wiring MRXBOX95 AB WM1 UNIT SERVING KITCHEN amp BATHROOM Supply cord Ea Green Yellow from unit MAINS 230V N 50Hz L Fuse 2A 3 Pole Light isolator switch Double Pole Optional summer boost switch Kitchen switch UNIT SERVING KITCHEN amp TWO BATHROOMS Supply cord Green Yellow from unit MAINS 230V N 50Hz L a rue Q Room Q ight LT eve 3 Pole switches isolator Double Pole Optional summer boost switch Kitchen switch OPTIONAL SENSORS AND DETECTORS Customise MRXBOX95AB WM11 for enhanced performance All supplied with pre plugged 10m data cable and incorporates status LED MRXBOX95 PIR passive infra red TAN A low voltage sensor detects movement U and activates system Incorporates over
15. position during installation as a standalone section without relying on other system elements nuaire NUAIRE S ACOUSTIC VENTILATION Acoustic Ventilator Nuaire Acoustically treated ventilator minimises noise pollution when background ventilation is required The provision of fresh air for rapid ventilation to all apartments is to be available without any inconvenience that may be caused by noise pollution from the road immediately adjacent to the development To this end any apartments situated on the main road are to be provided with an acoustically treated ventilator These are to be situated in the external wall of any room overlooking the road N B ALL rooms in corner end apartments where one or more rooms overlook the road are to have the acoustic ventilators provided regardless of that particular room s proximity to the road Features e Manual operation for total flexibility e Airflow 38l s 50Pa when fully open e Prevents ingress of wind rain etc with externally fitted baffle e Aluzinc finish can be painted to allow blending into any environment e Telescopic design allows for differing wall thicknesses e Class O rated flame retardant acoustic material e SRL test report available e 3 year warranty The acoustic ventilator shall be a manually operated device used at the discretion of the apartment s occupier and when in use shall allow fresh air to pass into the room in question The fresh air flow will be
16. potentiometers and indication lights M20 amp M16 Cable glands Mains entry amp blanking gland DIMENSIONS MM Weight 28Kg View from front 3x 125mm spigots Side view controls 1x 125mm spigots mM lt t Condensate drain atenat 21 5mm dia position condensate drain View from top Side view no controls 21 5mm dia condensate drain alternative position NUAIRE S MVHR Electrical Details MRXBOX95 LOFT Please note the electrical connection of the unit must be carried out by a qualified electrician Detail of unit control on front panel The unit is supplied with a flexible cord for connection to the mains supply For commissioning n uaire please refer to IM instructions NOTE This unit must be earthed The mains power supply cable should be connected to a fixed wiring Stand Fan Fan installation via a fused isolator in accordance with current IEE wiring ee regulations a a a O00 Speed Speed On ELECTRICAL DETAILS MRXBOX95 LOFT Voltage 230V 1ph 50Hz Consumption 75W max 0 6 Amp Fuse rating 3 Amp Wiring UNIT SERVING KITCHEN amp BATHROOM Supply cord from unit Green Yellow MAINS 230V 50Hz m Z H See fuse rating 3 Pole isolator Ment Summer switc bypass Double Pole Kitchen switch switch UNIT SERVING KITCHEN amp TWO BATHROOMS Supply cord from unit Green Yellow MAINS 230V 50Hz m Z tb
17. room The control of these heaters shall be by individual room set point controller The output of these controllers is directly applied to the relevant burst fired controlled heater These controllers shall be enabled by the central controller whenever heating is required in the apartment and this enable signal shall necessitate the supply system operation at boost rate and where appropriate the operation of the re circulation fan damper NUAIRE SUMMARY e Supply at aminimum rate of WDSR and at a maximum rate determined by the heating requirement and initiated by a switched 230 V HEATING ENABLE signal from the central controller Maximum rate operation may include operation of the unit s re circulation function e Extract at a minimum rate of LER and at a maximum rate of HER when initiated by manual switch light switch 230V signal e Bypass limits heat pick up in the supply air Bypass operation shall be controlled by switched 230 V signal from the central controller or other source e Common fault signal Available at unit Unit operation shall be verified prior to operation of heating system NB this is essential for the electrical heating system for social housing e THW heating coil control by others SOCIAL HOUSING APARTMENTS The system shall include duct mounted electric heaters with burst fired electric controllers Each habitable room shall be provided with an individual heating set point co
18. MRXBOX95 LH1 and MRXBOX95 LH2 are designed to provide optimised balanced supply and extract mechanical ventilation with heat recovery Tempered air is delivered into living areas whilst extracting moisture laden air from wet areas creating comfortable well ventilated homes The unit has the facility to commission the supply and extract fans independently on minimum speed continuous background ventilation boost control will control both fans to the same volume The heat exchanger block can recover up to 95 of the normally wasted heat Both units are listed on the Product Characteristics Database Typical Installation MRXBOX VSC CONTROL SCREEN COMPATIBLE WITH MRXBOX95 LH2 FLEXIBLE LOFT MOUNTING OPTIONS Metal bracket attached to unit Washer Woodscrew A V Mount Ceiling joist Option 1 Mounted on roof joists using four L shape metal brackets and AV mounts on long sides of unit Side view example of an L shaped fixing bracket and AV mount attached to ceiling joist Option 2 Mounted on roof joists using four L shape metal brackets and AV mounts on short sides of unit ACCESSORIES OPTIONAL REMOTE FAIL INDICATOR MRXBOX95LH RFI is connected to the fan unit via low voltage wiring REMOVABLE G4 FILTERS Filter Code 777674 nuaire Technical MRXBOX95 LH1 2 UNIT COMPONENTS G4 Removable filter Filter C
19. NTROL OPTIONS All versions shall have the following functions integrally mounted within the fan unit on a purpose made PCB all such components pre wired and factory fitted by the manufacturer e Integral speed control on supply and extract e Integral background ventilation control set point e Integral boost ventilation control set point e Integral run on timer e Fan failure indication e Integral S L terminal for boost from remote switch e g light switch OPTIONAL SENSORS MRXBOX95 PIR Passive infra red detector MRXBOX95 HUM Humidistat MRXBOX95 RFI Remote fail indicator Units shall be the MRXBOX95 LOFT as manufactured by Nuaire NUAIRE S MVHR Airepod AP MVHR LL amp AP MVHR RL The Airepod system is a 90 efficient whole house apartment heat recovery unit which uniquely also provides a minimum of 70 of the apartment s heating removing the need for a wet heating system It replaces the typical inflexible wet heating system and removes the need for radiators Airepod is a low profile ceiling mounted system just Airepod uses a traditional heat exchanger but differs from conventional 235 0mm in depth saving valuable storage space heat recovery systems in that it includes a third blower which allows additional pre tempered room air to be recirculated and mixed The 70 base heating load is delivered by an LTHW heating coil with incoming fresh air through the heater battery Control of the within the Airepo
20. Spigot 4 150mm dia supply air to house Mounting Bracket on wall and rear of unit Two removable G2 Filters Condensate Tray Technical MRBOX95 AB WH1 DIMENSIONS MM Weight 27kg View from front with cover removed Side View Mounting 431 Ventilation Controls For commissioning refer to user manual ommissioning remove adhesive backing under Supply this section 6 OOOO Runon Trickle Boost Trickle Boost Power Fan Failure Tamper proof label following commissioning includes system status indication Electrical Details Please note the electrical connection of the unit must be carried out by a qualified electrician The unit is supplied with a flexible cord for connection to the mains supply NOTE This unit must be earthed The mains power supply cable should be connected to a fixed wiring installation via a fused isolator in accordance with current IEE wiring regulations ELECTRICAL DETAILS MRXBOX95 WH1 Voltage 230V 1ph 50Hz Consumption WH1 1 3 Amp Fuse rating 3 Amp nuaire View from top 226 Spigots 4x 150mm dia MRXBOX VSC GO NNO ea els COMPATIBLE WITH TUSCIA NUAIRE S MVHR Wiring MRBOX95 AB WH1 UNIT SERVING KITCHEN amp BATHROOM Supply cord Green Yellow from unit L MAINS 230V 50HZ Z Fuse 2A 3 Pole Light isolator switch Double Pole Optional summer bo
21. View from top Side view no controls 21 5mm dia condensate drain alternative position Electrical Details Please note the electrical connection of the unit must be carried out by a qualified electrician The unit is supplied with a flexible cord for connection to the mains supply NOTE This unit must be earthed The mains power supply cable should be connected to a fixed wiring installation via a fused isolator in accordance with current IEE wiring regulations nuaire MRXBOX95 LH1 2 Detail of unit control on front panel For commissioning refer to user manual Ventilation controls Boost Continuous posp background _ OOOO Fan Failure Extract Supply Fan Fan ELECTRICAL DETAILS MRXBOX95 LH1 ELECTRICAL DETAILS MRXBOX95 LH2 Voltage 230V 1ph 50Hz Voltage 230V 1ph 50Hz Consumption LH1 1 3 Amp Consumption LH2 2 2 Amp Fuse rating LH1 3 Amp Fuse rating LH2 53 Amp UNIT SERVING KITCHEN amp BATHROOM Supply cord from unit MAINS 230V 50Hz See fuse rating Light switch Double Pole Kitchen switch Green Yellow 3 Pole isolator Summer bypass switch Grey Only used on bypass unit UNIT SERVING KITCHEN amp TWO BATHROOMS MAINS 230V N 50Hz L See fuse rating Light switch Double Pole Supply cord from unit Green Yellow 3 Pole isolator Summer bypass swi
22. WITCH Consultants Specification OPERATION The supply and extract ventilation unit shall be positioned as indicated on the drawings and shall be in accordance with the particular fan schedule in the specification The combined supply and extract with heat recovery unit shall supply filtered fresh air to each of the habitable rooms and vitiated air shall be extracted from the wet areas e g bathroom en suite w c kitchen utility rooms etc The supply air shall be pre heated by the warm extract air via the integrated counter flow heat exchanger element The extracted air shall also be filtered before it reaches the heat exchanger block The ventilation unit shall vary its speed and therefore the ventilation rate as it receives signals from one of the following e Switched live signal from light remote switches When signals are received the fan shall alter its speed to adjustable normal and boost rates The unit shall have the facility to commission the supply and extract fans independently on minimum speed continuous background ventilation boost speed via inbuilt minimum and maximum speed adjustment The fans shall have infinitely variable speed control MRXBOX95AB WH2 SPECIFICATION The unit shall be fully insulated providing excellent thermal and acoustic characteristics and shall be complete with a multi plate counter flow high efficiency heat exchanger block with a thermal efficiency of up to 95 The heat exchan
23. a combination of natural infiltration and fan assisted via the apartment s ventilation system The units air flow characteristic shall be 38l s 50Pa when the adjustable regulating plate is fully open When the acoustic ventilator is in use any externally generated noise from the adjacent road shall be kept to acceptable levels and shall be equivalent to that of the particular unit specified elsewhere in this document The acoustic ventilator shall have a baffle plate mounted externally and an adjustable regulating plate on the internal face both suitable for paint finishing The external baffle shall act as a weather shield stopping the ingress of wind rain etc and shall be manufactured from aluminium alloy The adjustable regulating plate shall be of a blank appearance so as to appear neutral to the wall in which it is situated The adjustable regulating plate will be hinged for operation the hinge mechanism will be graduated to facilitate the adjustment The unit casing shall be manufactured from Aluzinc corrosion protected steel and shall be of a minimum 1 5mm thickness The unit dimensions shall be 450mm wide x 200mm high x 200mm deep min the depth of the unit shall be telescopic to suit different wall thicknesses this facility shall not affect the acoustic properties or the air flow characteristics of the acoustic ventilator The acoustic media used within the unit shall be flame retardant material Class O rated Unit sha
24. ation only as an alternative the purge ventilation provisions can be used where security is not an issue In this case the Noise minimum high extract rate for the sanitary accommodation should be Any continuously running fans should be quiet so as not to discourage their omitted from the Step 2 calculation use by occupants Step 3 The required extract rates are as follows The maximum whole dwelling extract ventilation rate i e the boost rate should be at least the greater of Step 1 and Step 2 Note that the maximum individual room extract rates should be at least those given in Table 5 1a for minimum high rate The minimum whole dwelling extract ventilation rate should be at least the whole dwelling ventilation rate found in Step 1 nuaire MVHR Product Selector LOW PROFILE Feature up to 60m 660ft up to 100m 1100ft upto 100m upto150m upto150m upto270m 1100ft 1600ft 1600ft 2900ft up to 150m 1600ft up to 200m 2150ft Kitchen up to 2 wet rooms Kitchen up to 5 wet rooms Kitchen up to 6 wet rooms Kitchen up to 7 wet rooms Kitchen up to 8 wet rooms Discreet Run Monitor Integral automatic summer bypass Optional automatic summer bypass Integral frost protection Integral humidistat Optional sensors and detectors Optional remote commissioning box
25. ch e Additional S L terminal for 100 boost speed from remote switch e g plate switch e Discreet daily run monitor e Remote fail indicator part number MRXBOX95LH RFI e Indication and controls The unit shall have clear LED visual indication for maintenance servicing and operation mode i e summer bypass frost protection INTEGRAL AUTOMATIC SUMMER BYPASS MRXBOX95AB WM2 The bypass damper shall open automatically via a wax actuator allowing the air to bypass the heat exchanger to deliver fresh filtered air during the warmer months Integral Humidity Sensor The integral humidity sensor incorporated within the extract fan chamber will automatically boost both the extract and supply fan to the commissioned boost speed when the humidity level exceeds that set by the front panel mounted adjustment potentiometer MRXBOX VSC VISUAL SYSTEM CONTROLLER The MRXBOX VSC is compatible with the Nuaire MRXBOX95 AB WM2 heat recovery units and can be purchased separately The controller comes complete with commissioning and end user functions The display will be a 3 2 LCD display and will remain on standby until such time the screen is touched The initial display will show the MVHR system status as listed below e Current Fan Speed e Current indoor outside temperature MRXBOX95AB units only e Indicate when the summer bypass is activated e Indicate when frost protection is activated e Indicate when the filters requ
26. created a unique solution that is not only designed to reduce noise significantly addressing duct and breakout noise but is visibly appealing for the home occupant It can be used with or without the First Fix Solution MRXBOX95B WH1 WM2 Nuaire s Acoustic Box and First Fix solution are compatible with the MRXBOX95 AB WH1 and MRXBOX95 AB WM2 heat recovery units which are designed for medium to large properties nuaire Electrical amp Sound Sound data without Acoustic Box Acoustic performance to BS848 Part 2 2 and AMCA 300 dBA 3m Breakout Noise dBA 28 Inlet Noise dBA 25 Outlet Noise dBA 40 Breakout level is hemispherical For spherical deduct 3 dBA Sound Power Levels re 1 pWatts Hz z Open Inlet 45 48 53 43 38 30 16 lt 16 Open Outlet 53 60 62 61 53 32 Breakout 53 58 54 47 34 31 16 lt 16 Above noise calculated speed controlled to require duty 66 4 For 100 Speed 3 3 5 6 9 9 9 9 Breakout Noise dBA Inlet Noise dBA Outlet Noise 11 With Acoustic Box Supply Discharge Inlet Noise dBA NUAIRES MVHR Technical DIMENSIONS MM MRXBOX95 AB WH1 Top View a i Side View 458 CRS ata 4 a as es al o a U I N N 0 1 n MRXBOX95 FF WH1 Front view 400 I i 666 110 Top View 158 CRS Face
27. d fed from either central CHP or energy centre recirculating fan is independent of the supply extract fans The The remaining 30 of heat is provided by electric heaters within approved document F ventilation rates are maintained at all times the duct system or fan coils in higher specification apartments with the recirculating blower only topping up air flow when heating is needed Both units are listed on the Product Characteristics Database AIREPOD How does it work VIN Performance Sap Appendix Q Test Results AP MVHR LL AP MVHR RL Airepod Application Specific Fan Power Heat Exchange Efficiency 600 W I s ae Kitchen 1Wet Room 0 67 86 400 Kitchen 2 Wet Rooms 0 66 86 m Kitchen 3 Wet Rooms 0 7 86 Fan Static Pressure Pa Kitchen 4 Wet Rooms 0 8 86 ds Kitchen 5 Wet Rooms 0 89 85 100 Kitchen 6 Wet Rooms 1 07 85 Call for further information EI TT Tel 029 2085 8500 om D O w S gt un oN o co Ko Email enquiries nuaire co uk nuaire General Arrangement DIMENSIONS MM Weight 40Kg Re Circulation Damper MAIN UNIT Control Box fitted with 1000mm umbilical cable 21 5 Condensate Drain 878 745 0 Extract Filter Access Discharge 707 3 652 0 Fresh Air Filter Access 372 8
28. e Deste Or continuons Mechanica extiact ystems and pollutant release Humidity controls should not be used for sanitary System 3 Continuous Mechanical Extract has been sized for the winter accommodation as odour is the main pollutant period Additional ventilation may be required during warmer months and it has been assumed that the provisions for purge ventilation e g openable windows could be used e In kitchens any automatic control must provide sufficient flow during cooking with fossil fuel e g gas to avoid build up of combustion products e Ensure that the system always provides the minimum whole dwelling Step 1 Determine the whole dwelling ventilation rate from Table 51b tais rete ventilation rate specified in table 51b Note no allowance is made for infiltration as the extract system lowers the pressure in the dwelling and all air flow through infiltration paths does not increase the overall ventilation rate Where manual controls are provided they should be within reasonable reach of the occupants It is recommended that they are located in accordance with the guidance of Requirement N3 Safe Opening And Step 2 Calculate the whole dwelling extract ventilation rate by summing the individual room rates for minimum high rate from Table 51a Closing of Windows etc which is given in Approved Document N Where reasonable pull cords operating rods or similar devices should be provided For sanitary accommod
29. en that of the outside air and that of the room return air and largely biased towards the higher of the two regardless of which this is The bypass damper is not capable of modulation Control of the bypass damper shall be by others switched mains signal FREE COOLING Because of the relatively low airflow rates delivered by a residential ventilation system the potential for free cooling by means of the bypass is extremely limited HEATING Control of the LTHW heating coil output shall be by others Operation of the unit heating coil shall necessitate the supply system operation at the boost rate and where appropriate the operation of the re circulation fan damper CONDENSATE In the course of normal operation it is to be expected that condensate will be produced as a result of the cooling of the extract air stream Condensate is discharged from the unit via a plain un trapped connection UNIT FAIL SIGNAL A common fault output is available at the unit and should be verified as clear prior to operation of any heating mode Note the consultant engineer has recently requested independent fan failure indication This is under evaluation but does not currently form part of the product specification SOCIAL HOUSING APPLICATIONS In these properties the additional 30 of the base heating input is to be provided by burst fire controlled duct mounted electric heaters One heater is to be provided for each habitable
30. facturer e Independent control of background supply and extract flow rates e Independent control of boost speed supply and extract flow rates e Integral heat exchanger frost protection e Fan failure indication e Integral S L terminal for boost from remote switch e g light switch e Additional S L terminal for 100 boost speed from remote switch e g plate switch e Discreet daily run monitor e Remote fail indicator part number MRXBOBX95LH RFI e Indication and controls The unit shall have clear LED visual indication for maintenance servicing and operation mode i e summer bypass frost protection INTEGRAL AUTOMATIC SUMMER BYPASS MRXBOX95AB WH1 The bypass damper shall open automatically via a wax actuator allowing the air to bypass the heat exchanger to deliver fresh filtered air during the warmer months Integral Humidity Sensor The integral humidity sensor incorporated within the extract fan chamber will automatically boost both the extract and supply fan to the commissioned boost speed when the humidity level exceeds that set by the front panel mounted adjustment potentiometer MRXBOX VSC VISUAL SYSTEM CONTROLLER The MRXBOX VSC is compatible with the Nuaire MRXBOX95 AB WH1 heat recovery units and can be purchased separately The controller comes complete with commissioning and end user functions The display will be a 3 2 LCD display and will remain on standby until such time the screen is touc
31. ger shall be protected by G3 grade filters on fresh air inlet and system extract The heat exchanger and filters shall be accessible via the front access panel enabling quick and easy maintenance The unit shall have low energy high efficiency EC fan motor assemblies with sealed for life bearings the impellers shall be backward curved centrifugal type The motors shall be suitable of an ambient temperature of 40 C The unit shall be supplied complete with a condensate drip tray and 32mm drain connection The unit shall be suitable for 180 and 200mm diameter circular ducting The breakout noise level and power requirements shall be as detailed by the unit manufacturer and in accordance with the ventilation equipment schedule Units shall be MRXBOX95AB WH2 as manufactured by Nuaire INTEGRAL AUTOMATIC SUMMER BYPASS The bypass damper shall open automatically via a wax actuator allowing the air to bypass the heat exchanger to deliver fresh filtered air during the warmer months INTEGRAL HUMIDITY SENSOR The integral humidity sensor incorporated within the extract fan chamber will automatically boost both the extract and supply fan to the commissioned boost speed when the humidity level exceeds that set by the side panel mounted adjustment potentiometer OPTIONAL REMOTE SWITCH MRXBOX95 3 SWITCH The unit shall have the facility to wire a three position remote switch to a suitable location within the property The switch s
32. hall have 3 settings trickle boost and summertime boost facility The remote switch will act as the master switch and will override all other switches CONTROL OPTIONS All versions shall have the following functions integrally mounted within the fan unit on a purpose made PCB all such components pre wired and factory fitted by the manufacturer e Independent control of background supply and extract flow rates e Independent control of boost speed supply and extract flow rates e Integral fan failure indication e Integral S L terminal for boost to commissioned level from remote switch e g light switch e Integral S L terminal for summertime boost speed from remote switch e g plate switch e Integral heat exchanger frost protection e Discreet daily run monitor e Remote fail indicator Part number MRXBOX95LH RFI e Indication and controls The unit shall have clear LED visual indication for maintenance servicing and operation mode i e summer bypass frost protection The unit shall be offered with a 5 year warranty The manufacturer s recommendations should be observed at all times The unit shall be the MRXBOX95AB WH2 and shall be manufactured by Nuaire MRXBOX VSC VISUAL SYSTEM CONTROLLER The MRXBOX VSC is compatible with the Nuaire MRXBOX95AB WH2 heat recovery unit and can be purchased separately The controller comes complete with commissioning and end user functions The display will be a 3 2 LCD disp
33. heat recovery saving based on SAP Appendix Q testing Please note step curves shown are for information purposes only and are not individual units The units actual duty range is infinitely variable Technical MRXBOX95B LP1 DIMENSIONS MM Weight 37kg 900 885 Hole centres o O w CO 2 CO WO WO 21 5mm Condensate drain View from control side A 740 Filter access distance gt 850 153 Electrical Details Please note the electrical connection of the unit must be carried out by a qualified electrician The unit is supplied with a flexible cord for connection to the mains supply NOTE This unit must be earthed The three core cable from the mains power supply should be connected to a fixed wiring installation via a fused isolator in accordance with current IEE wiring regulations ELECTRICAL DETAILS MRXBOX95B LP1 Voltage 230V 1ph 50Hz Consumption LP1 2 5 Amp Fuse rating 3 Amp nuaire View from underside with lid removed B ill End view Detail of unit control on control panel Control module Ventilation Controls 3 or commissionin Post commissioning remove adhesive Supply Extract this secti Fan see off Fan Trickle Boost Trickle Boost Failure Tamper proof label following commissioning includes system status indication NUAIRES MVHR Wiring MRXBOX95B LP1 UNIT SERVING KITCHEN am
34. hed The initial display will show the MVHR system status as listed below e Current Fan Speed e Current indoor outside temperature MRXBOX95AB units only e Indicate when the summer bypass is activated e Indicate when frost protection is activated e Indicate when the filters require cleaning changing NUAIRE S MVHR M RX BOX95AB WH f with automatic summer bypass MRXBOX9S5AB WH2 is designed to provide optimised balanced supply and extract mechanical ventilation with heat recovery Tempered air is delivered into living areas whilst extracting moisture laden air from wet areas creating comfortable well ventilated homes The unit has been designed with automatic summer bypass and the facility to commission the supply amp extract fans independently on both minimum and maximum speeds This unit is listed on the Product Characteristics Database Typical Installation INSTALLATION FEATURES Filter being removed Filter Code MVHR WH2 FILTERKIT Filter cover Typical cupboard installation of MRXBOX95AB WH2 MRXBOX VSC CONTROL SCREEN COMPATIBLE WITH THIS UNIT nuaire Performance MRXBOX95AB WH2 CODE DESCRIPTION 800 mm 2007 AMCA 300 T vty 1 2 34 5 6 r v ig B Air Density 12 kgf 1 Multi room supply and extract heat recovery 2 Product range 600 3 Efficiency 4 Automatic Summer Bypass 700
35. imum power consumption shown above Watts is consumed on units running continuously not taking into account any heat recovery saving and based on SAP Appendix Q testing Hemispherical free field dBA NUAIRE S MVHR General Arrangement MRXBOX95 LOFT UNIT COMPONENTS SPIGOT LOCATION amp Ayn reesei G4 Removable filter Spigot 1 125mm dia extract air from dwelling Spigot 2 125mm dia exhaust air to outside Spigot 3 125mm dia intake air from outside Spigot 4 125mm dia supply air to house Lid Heat exchanger G4 Removable filter Filter Code 777674 Condensate drain outlet Adjustable potentiometers and indication lights M20 amp M16 Cable glands Mains entry amp blanking gland DIMENSIONS MM Weight 27 5Kg View from front 4x 125mm spigots Side view controls 1x 125mm spigots A O Mm lt t Condensat re ensate rain 21 5mm dia alternative condensate drain position View from top Side view no controls 21 5mm dia condensate drain alternative position nuaire General Arrangement MRXBOX95 LOFT OPTIONAL SUMMER BYPASS SPIGOT LOCATION amp DUCTING REFERENCES Lid Spigot 1 125mm dia extract air from dwelling Heat exchanger Spigot 2 125mm dia exhaust air to outside Spigot 3 125mm dia intake air from outside Spigot 4 125mm dia supply air to house G4 Removable filter Filter Code 777674 Condensate drain outlet Adjustable
36. ion OPERATION The supply and extract system shall be positioned as indicated on the drawings and shall be in accordance with the particular fan schedule in the specification The combined supply and extract with heat recovery unit shall supply filtered fresh air to each of the habitable rooms and vitiated air shall be extracted from all wet areas e g bathroom en suite w c kitchen utility rooms etc The supply air shall be pre heated by the warm extract air via the integrated counter flow heat exchanger element The extracted air shall also be filtered before it reaches the heat exchanger block The ventilation unit shall vary its speed and therefore the ventilation rate as it receives signals from one of the following e Switched live signal from light remote switches When signals are received the fan shall alter its speed to adjustable normal and boost rates An adjustable run on facility is integrated into the unit which allows the fans to run on for between 1 and 60 minutes after the signals have been switched off The unit shall have the facility to commission the supply and extract fans independently on minimum speed continuous background ventilation and boost speed via inbuilt minimum and maximum speed adjustment The fans shall have infinitely variable speed control UNIT SPECIFICATION The unit shall be fully insulated providing excellent thermal and acoustic characteristics and shall be complete with a multi p
37. ire cleaning changing NUAIRE S MVHR M RX BOX95AB WH1 with automatic summer bypass amp MRXBOX95 WH1 The MRXBOXB95AB WH1 has been designed with automatic summer bypass and the facility to commission the supply and extract fans independently on both minimum and maximum speeds Both the MRXBOX95AB WH1 and MRXBOX95 WH1 are designed to provide optimised balanced supply and extract mechanical ventilation with heat recovery Tempered air is delivered into living areas whilst extracting moisture laden air from wet areas creating comfortable well ventilated homes The unit has the facility to commission the supply and extract fans independently on both minimum and maximum speeds The heat exchanger block can recover up to 95 of the normally wasted heat Both units are listed on the Product Characteristics Database Typical Installation MRXBOX95 INSTALLATION FEATURES Filter being removed 2 i Filter Code MVHR WH1 FILTERKIT Filter cover Performance MRBOX95 AB WH1 Fan Static Pressure Pa Air Volume Flow Rate l s Electrical amp Sound nuaire CODE DESCRIPTION MRXBOX95 WH1 PF ot tf 1 2 3 45 Multi room supply and extract heat recovery Product range Efficiency Wall cupboard application High 1 Model Rk WN MRXBOX95AB WH1 lt ll 1 2 34 56 Multi room supply and extract heat recovery Product range Efficie
38. late counter flow high efficiency heat exchanger block with a thermal efficiency of up to 90 The heat exchanger shall be protected by G3 grade filters on fresh air inlet and system extract The heat exchanger and filters shall be accessible via the front access panel enabling quick and easy maintenance The unit shall have low energy high efficiency EC fan motor assemblies with sealed for life bearings the impellers shall be backward curved centrifugal type The motors shall be suitable of an ambient temperature of 40 C The unit shall be supplied complete with an insulated condensate drip tray and 21 5mm drain connection The unit shall be suitable for 125mm circular ducting The breakout noise level and power requirements shall be as detailed by the unit manufacturer and in accordance with the ventilation equipment schedule Units shall be MRXBOX95 WM2 or MRXBOX95AB WM2 as manufactured by Nuaire and shall be listed on the SAP Appendix Q database nuaire CONTROL OPTIONS All versions shall have the following functions integrally mounted within the fan unit on a purpose made PCB all such components pre wired and factory fitted by the manufacturer e Independent control of background supply and extract flow rates e Independent control of boost speed supply and extract flow rates e Integral heat exchanger frost protection e Fan failure indication e Integral S L terminal for boost from remote switch e g light swit
39. lay and will remain on standby until such time the screen is touched The initial display will show the MVHR system status as listed below e Current Fan Speed e Current indoor outside temperature e Indicate when the summer bypass is activated e Indicate when frost protection is activated e Indicate when the filters require cleaning changing NUAIRE S MVHR nuaire M R X OXO D B PT with automatic summer bypass MRXBOX95B LP1 is specifically designed for apartment applications where space is a premium The MVHR unit provides optimised balanced supply amp extract mechanical ventilation with heat recovery Tempered air is delivered into living areas whilst extracting moisture laden air from wet areas creating comfortable well ventilated homes The unit has a facility to commission the supply amp extract fans independently on both minimum and maximum speeds This unit is listed on the Product Characteristics Database Typical Installation INSTALLATION FEATURES t Air valve 204x 60mm Side view of unit in ceiling Ducting in mounted in the ceiling void ceiling void Access to second filter Filter plate and filter Control module being removed General Arrangement MRXBOX95B LP1 4 x Spigots for 204 x 60mm rectangular ducting Filter and filter plate NI being removed Second filter and filter plate being removed NUAIRE S MVHR Performance MRXBOX95B LP1
40. ll be all as per model reference ACC 400 as manufactured by Nuaire Ltd The unit shall have a 3 year warranty Acoustic performance Summary for full data see SRL test report C 04 5L 3108 1 method BS EN ISO 717 1 1997 Vent in closed position Rw C Ctr Vent in open position For comparison 220mm cavity wall without penetration wc IR un IN O O WW un Static Pressure Pa WW 0 10 20 30 40 50 60 70 Air brick set up resistance 5 NUAIRE S NOISE SOLUTIONS nuaire Inline Attenuation Available in 0 5m 1m amp 1 5m lengths 500mm Tested by SRL Test 1 0mtr Report Number 1 5mtr C 21196 RO1 Features e Regulation driven to reduce duct noise for designers Domestic Compliance Guide 2010 amp noise requirements Part F 2010 40 30 e Corrosion Proof Lightweight PVC removes the risk of corrosion 20 e Reduce cross talk room to room noise Noise Reduction dB e Prevents noise ingress for inner city development for integration within your ducting system 63Hz 125Hz 250Hz 500Hz 1kHz 2k Hz 4kHz 8k Hz Frequency e Space Saving Slim line low profile design PRODUCT RANGE Silencer Code Description Length Height PVCSIL 500 System 204 Duct Silencer x 500mm 580mm 65mm PVCSIL 1000 System 204 Duct Silencer x 1 0mtr 1080mm 65mm PVCSIL 1500 System
41. m speed continuous background ventilation and boost speed via inbuilt minimum and maximum speed adjustment The fans shall have infinitely variable speed control SPECIFICATION The unit shall be manufactured from galvanised sheet steel with a white pre painted removable access panel The unit shall be fully insulated providing excellent thermal and acoustic characteristics and shall be complete with a multi plate aluminium counter flow high efficiency heat exchanger block with a thermal efficiency of up to 80 The heat exchanger shall be protected by G3 grade filters on fresh air inlet and system extract The heat exchanger and filters shall be accessible via the underside access panels enabling quick and easy maintenance The unit shall have a maximum depth of 200mm to fit within ceiling void restrictions The unit shall have low energy high efficiency EC fan motor assemblies with sealed for life bearings the impellers shall be backward curved centrifugal type The motors shall be suitable of an ambient temperature of 40 C Motor assemblies shall be removable from the underside of the unit and will not require the unit to be removed from situ The unit shall be supplied complete with a condensate drip tray and 21 5mm drain connection The unit shall be suitable for 204x60mm rectangular ducting The breakout noise level and power requirements shall be as detailed by the unit manufacturer and in accordance with the ventilation
42. modation To ensure good transfer of air throughout the dwelling there should be an undercut of minimum area 7 600mm in all internal doors above the floor Table 5 1b Whole Dwelling Ventilation Rates finish This is equivalent to an undercut of 10mm for a standard 760mm Natio oi seeme i ewei width door This should be achieved by making an undercut of 10mm 1 2 3 4 5 above the floor finish if the floor finish is fitted or by a 20mm undercut Whole dwelling ventilation rate l s 13 17 21 25 29 above the floorboards or other surface if the finish has not been fitted Notes Controls a In addition the minimum ventilation rates should be no less than 0 3 l s per m of internal floor area this includes all floors e g for a two storey building add the ground e Should be set up to operate without occupant intervention but may HER have manual or automatic controls to select the boost rate Any manual b This is based on two occupants in the main bedroom and a single occupant in all other boost controls should be provided locally to spaces being served e g bedrooms This should be used as the default value If a greater level of occupancy is hrooms and kitchen as provision of a single centrally located switch expected add 4 l s per occupant pia Sele tere Sen E eee ade ne may result in fans being left in an inappropriate mode of operation Automatic controls could include sensors for humidity occupancy usag
43. n unit on a purpose made PCB all such components pre wired and factory fitted by the manufacturer e Independent control of background supply and extract flow rates e Single control of boost ventilation rates e Runtime monitor included e Integral Fan failure indication e Integral S L terminal for boost from remote switch e g light switch OPTIONS CONTROL MRXBOX95LH RFI Remote fail indicator Units shall be the MRXBOX95 LH1 as manufactured by Nuaire OPTIONAL LOFT STAND Mvhr loft stand MRXBOX VSC VISUAL SYSTEM CONTROLLER The MRXBOX VSC is compatible with the Nuaire MRXBOX95 LH2 heat recovery unit and can be purchased separately The controller comes complete with commissioning and end user functions The display will be a 3 2 LCD display and will remain on standby until such time the screen is touched The initial display will show the MVHR system status as listed below e Current Fan Speed e Current indoor outside temperature MRXBOX95AB units only e Indicate when the summer bypass is activated e Indicate when frost protection is activated e Indicate when the filters require cleaning changing MRXBOX95 LOFT MRXBOX95 LOFT is designed to provide optimised balanced supply and extract mechanical ventilation with heat recovery Tempered air is delivered into living areas whilst extracting moisture laden air from wet areas creating comfortable well ventilated homes MRXBOX95 LOFT uses the la
44. ncy Automatic Summer Bypass Wall cupboard application High 1 Model DR WD Maximum power consumption Curve Sound Power Levels dB re 1pW Open inlet Open Outlet Breakout Open inlet Open Outlet Breakout Open inlet Open Outlet Breakout Open inlet Open Outlet Breakout Open inlet Open Outlet Breakout Open inlet Open Outlet Breakout 125 63 61 50 62 60 50 62 60 48 60 58 45 Si 55 42 44 30 49 54 53 48 49 52 45 34 19 34 lt 16 lt 16 lt 16 lt 16 lt 16 32 22 lt 16 2l lt 16 lt 16 lt 16 19 The maximum power consumption shown above Watts is consumed on units running continuously not taking into account any heat recovery saving and based on SAP Appendix Q testing NUAIRES MVHR Sap Appendix Q Test Results MRXBOX95AB WH1 MRXBOX95 WH1 Application Specific Fan Power Heat Exchange Energy Saving Specific Fan Power Heat Exchange Energy Saving W I s Efficiency Trust Best Practice W I s Efficiency Trust Best Practice Compliant Compliant Kitchen 1 Wet Room Kitchen 2 Wet Room Kitchen 3 Wet Room Kitchen 4 Wet Room Kitchen 5 Wet Room Kitchen 6 Wet Room Kitchen 7 Wet Room General Arrangement SPIGOT LOCATION amp DUCTING REFERENCES Spigot 1 150mm dia extract air from dwelling Spigot 2 150mm dia exhaust air to outside Spigot 3 150mm dia intake air from outside
45. nd easy accessible controls The heat exchanger block can recover up to 95 of the normally wasted heat The two independent fans have full speed control for background and boost ventilation rates as well as a run on timer facility and adjacent smoke detectors Both units are listed on the Product Characteristics Database MRXBOX95 Typical Installation INSTALLATION FEATURES Filter being removed TE Filter Code MVHR WM1 FILTERKIT Filter cover MN nuaire Performance MRXBOX95 AB WM1 CODE DESCRIPTION MRXBOX95 WM1 350 PF of 300 1 2 3 4 g 250 1 Multi room supply and extract l heat recovery a ae 2 Product range E so 3 Efficiency 2 4 Wall cupboard application mm 5 Medium duty 50 Eia MRXBOX95 AB WM1 0 10 0 20 0 30 0 40 0 50 0 60 0 Air Volume Flow Rate l s 1 2 3 4 5 6 1 Multi room supply and extract heat recovery Product range Efficiency Automatic Summer Bypass Wall cupboard application Oo WM KP W N Medium duty Electrical amp Sound Maximum Sound Power Levels dB re 1pW power consumption Watts Watts a Open inlet Open Outlet Breakout 125 250 41 48 51 57 50 39 Open inlet 39 46 Open Outlet 48 52 Breakout 48 51 Open inlet 38 43 Open Outlet 46 49 Breakout 46 47 3 39 43 44 43 43 29 30 38 7 38 36 Open inlet Open Outlet Breakout Open inlet Open Outlet Breakou
46. ntrol This control shall be enabled by a switched 230 V HEATING ENABLE signal from the central controller that simultaneously boosts the supply airflow rate OUTLINE SPECIFICATION It is anticipated that apartment layouts and utility cupboard restrictions will result in the requirement for a number of product configurations Generally these do not affect product costs The MVHR unit shall provide supply and extract ventilation and part of the heating requirement for the dwellings The unit shall incorporate high efficiency supply and extract fans of backward curved centrifugal design with integral EC type motors The unit shall incorporate a high efficiency counter flow heat recovery module c w 100 bypass facility The unit shall incorporate a LTHW heating coil capacity specific to property requirements The coil connections 15mm copper x 2 shall terminate outside the unit casing for connection to third party valve gear The unit shall incorporate a re circulation facility with damper damper actuator and high efficiency fan of backward curved centrifugal design with integral EC type motor The unit shall incorporate an insulated drip tray for collection of condensate generated by the heat recovery device A condensate drain connection shall be provided terminating outside the unit casing trapping by others is normally required when connecting to household drainage Use of the Nuaire product MVHR DRAIN is recommended
47. nuaire MECHANICAL VENTILATION WITH HEAT RECOVERY MVHR NEW HOMES PEDIGREE Nuaire is a world leader in the design and manufacture of fans and ventilation systems We put our energy into efficient ventilation so you don t waste yours Nuaire is a privately owned British company that designs and manufactures innovative ventilation products for the residential and commercial sectors We are proud to be recognised for our expertise commitment to innovation and the outstanding quality of our products and customer service People are the heart of Nuaire and we have over 400 staff at our headquarters with a further 65 technical sales engineers throughout the UK and Ireland MADE IN GREAT BRITAIN Nuaire s technical application team can offer expert advice and support to help you make the right choice in your ventilation strategy Providing a simple quick selection or offering advice on compliance with the very latest building regulations and environmental issues we s DS A a ooeooooeoooooooooooooo oo are here for you every step of the way housebuilder CA vs UA LA LA amp LA MA awa 2014 winner Advice On Compliance and SAP O Stay ahead of the latest building regulations and make the best product and fabric choices A i nuaire 5 a XX SS N as m ma eS co ote
48. ode MVHR LOFT FILTERKIT SPIGOT LOCATION amp DUCTING REFERENCES Heat exchanger id Spigot 1 125mm dia extract air from dwelling Spigot 2 125mm dia exhaust air to outside Spigot 3 125mm dia intake air from outside Spigot 4 125mm dia supply air to house G4 Removable filter Filter Code 777674 Condensate drain outlet Adjustable potentiometers and indication lights M20 amp M16 Cable glands Mains entry amp blanking gland DIMENSIONS MM Weight 21Kg View from front 4x 125mm spigots Side view no controls a M sr i T drain 21 5mm dia condensate drain 450 View from top Side view no controls 21 5mm dia condensate drain alternative position NUAIRE S MVHR General Arrangement MRXBOX95 LH1 2 OPTIONAL SUMMER BYPASS SPIGOT LOCATION amp DUCTING REFERENCES Spigot 1 125mm dia extract air from dwelling Spigot 2 125mm dia exhaust air to outside Spigot 3 125mm dia intake air from outside Spigot 4 125mm dia supply air to house HS Heat exchanger G4 Removable filter Filter Code 777674 Condensate drain outlet Adjustable potentiometers and indication lights M20 amp M16 Cable glands Mains entry amp blanking gland DIMENSIONS MM View from front 3x 125mm spigots Side view controls 1x 125mm spigots 430 Condensate drain alternative l 21 5mm dia position condensate drain 450
49. of label following commissioning includes system status indication nuaire Electrical Details MRXBOX95AB WHA2 Please note the electrical connection of the unit must be carried out by a qualified electrician The unit is supplied with a flexible cord for connection to the mains supply NOTE In the event of 1kV transients the fans may stop running normal operation will be resumed when the interference has ceased The mains power supply cable should be connected to a fixed wiring installation via a fused isolator in accordance with current IEE wiring regulations ELECTRICAL DETAILS MRXBOX95 WH2 Voltage 230V 1ph 50Hz Consumption 2 5 Amp Fuse rating 5 Amp Wiring Note Wiring is for reference purposes only as the connections are factory fitted The unit is pre wired with a 2 metre fly lead UNIT SERVING KITCHEN amp BATHROOM Green Yellow MAINS 230V N or 50Hz Fuse 5A 2 Pole Isolator l Os ees 3 Position Switch Ancillary code MRXBOX95 3SWITCH Supply cord from unit UNIT SERVING ONE BATHROOM Green Yellow MAINS 20v N 50Hz L Fuse 5A Light switch Double Do ce ees vee Pole 3 Position Switch Supply cord Ancillary code from unit MRXBOX95 3SWITCH UNIT SERVING TWO BATHROOMS MAINS 230V 50Hz m Zi Fuse 5A Light 3 Pole swiid Isolator Double bo e asa Pole 3 Position Switch Supply cord Ancillary code from unit MRXBOX95 3S
50. oists and other services are installed Nuaire offer a wide range of solutions including MVHR s for wall loft or ceiling mount Nuaire also offer acoustic solutions to ensure you not only meet building regulations but ensure efficient whisper quiet performance Design Services Nuaire s Technical Application Team can offer expert advice and support on design Services include supporting 3D CAD illustrations to illustrate choice of product ducting and ancillaries This bespoke package enables correct selection and aids project management and site control As well as a simple clean system layout in 3D showing ventilation Nuaire provides a complete parts list with installation visuals nuaire enn MRXBOX95 NUAIRES MVHR Building Regulations Part F Table 5 1a Extract Ventilation Rates Location of Ventilation Devices Extract should be from each wet room Room Intermittent Continuous Extract Extract Mechanical extract terminals and fans should be installed Kitchen 30 l s adjacent sis Total extract rate below the ceiling to hob or should be at least le den er the whole dwelling e Where ducts etc are provided in a dwelling with a protected stairway ventilation rate i i ibili h m Utility Room Ait aie os precautions may be necessary to avoid the possibility of the syste allowing smoke or fire to spread into the stairway Bathroom 15 Vs 8 l s Sanitary 6 l s 6 l s Air Transfer Accom
51. ost switch Kitchen switch UNIT SERVING KITCHEN amp TWO BATHROOMS Supply cord Green Yellow from unit MAINS 230V N 50Hz L FURE EA Q Room Light LT Lu 3 Pole switches i isolator Double Pole Optional summer boost switch Kitchen switch Consultants Specification OPERATION The supply and extract system shall be positioned as indicated on the drawings and shall be in accordance with the particular fan schedule in the specification The combined supply and extract with heat recovery unit shall supply filtered fresh air to each of the habitable rooms and vitiated air shall be extracted from all wet areas e g bathroom en suite w c kitchen utility rooms etc The supply air shall be pre heated by the warm extract air via the integrated counter flow heat exchanger element The extracted air shall also be filtered before it reaches the heat exchanger block The ventilation unit shall vary its speed and therefore the ventilation rate as it receives signals from one of the following e Switched live signal from light remote switches When signals are received the fan shall alter its speed to adjustable normal and boost rates An adjustable run on facility is integrated into the unit which allows the fans to run on for between 1 and 60 minutes after the signals have been switched off The unit shall have the facility to commission the supply and extract fans independently on minimum speed continuous backg
52. ow high efficiency heat exchanger block with a thermal efficiency of up to 95 The heat exchanger shall be protected by G4 grade filters on fresh air inlet and system extract The heat exchanger and filters shall be accessible via the top access panel enabling quick and easy maintenance The unit shall have low energy high efficiency EC fan motor assemblies with sealed for life bearings the impellers shall be backward curved centrifugal type The motors shall be suitable of an ambient temperature of 40 C The unit shall be supplied complete with an insulated condensate drip tray and 21 5mm drain connection The unit shall be suitable for 125mm circular ducting Anti vibration mounts are supplied with each unit to prevent vibration being transmitted to the ceiling timbers The breakout noise level and power requirements shall be as detailed by the unit manufacturer and in accordance with the ventilation equipment schedule OPTIONAL SUMMER BYPASS The bypass damper opens when a 230V signal is applied to the unit via a manual switch supplied This opens the damper via an actuator When the switch signal is de activated the unit returns to its original state air through the heat exchanger Outside air supplied through the bypass is still filtered so the air quality is optimal irrespective of the bypass setting Open or closed CONTROL OPTIONS All versions shall have the following functions integrally mounted within the fa
53. p BATHROOM Supply cord Green Yellow from unit L MAINS 7 230V 50Hz Z Fuse 2A 3 Pole Light isolator switch Double Pole Cptional summer boost switch Kitchen switch UNIT SERVING KITCHEN amp TWO BATHROOMS Supply cord L Green Yellow from unit MAINS 230V N Hi L Ls NN I Fuse 2A D Radi light H Ent 3 Pole switches isolator Double Pole Optional summer boost switch Kitchen switch Consultants Specification OPERATION The supply and extract ventilation unit shall be positioned as indicated on the drawings and shall be in accordance with the particular fan schedule in the specification The combined supply and extract with heat recovery unit shall supply filtered fresh air to each of the habitable rooms and vitiated air shall be extracted from the wet areas e g bathroom en suite w c kitchen utility rooms etc The supply air shall be pre heated by the warm extract air via the integrated counter flow heat exchanger element The extracted air shall also be filtered before it reaches the heat exchanger block The ventilation unit shall vary its speed and therefore the ventilation rate as it receives signals from one of the following e Switched live signal from light remote switches When signals are received the fan shall alter its speed to adjustable normal and boost rates The unit shall have the facility to commission the supply and extract fans independently on minimu
54. ppendix Q testing Hemispherical free field dBA NUAIRE S MVHR Consultants Specification OPERATION The supply and extract ventilation unit shall be positioned as indicated on the drawings and shall be in accordance with the particular fan schedule in the specification The combined supply and extract with heat recovery unit shall supply filtered fresh air to each of the habitable rooms and vitiated air shall be extracted from the wet areas e g bathroom en suite w c kitchen utility rooms etc The supply air shall be pre heated by the warm extract air via the integrated counter flow heat exchanger element The extracted air shall also be filtered before it reaches the heat exchanger block The ventilation unit shall vary its speed and therefore the ventilation rate as it receives signals from one of the following e Switched live signal from light remote switches When signals are received the fan shall alter its speed to adjustable normal and boost rates The unit shall have the facility to commission the supply and extract fans independently on minimum speed continuous background ventilation boost control will control both fans to the same volume via inbuilt minimum and maximum speed adjustment The fans shall have infinitely variable speed control UNIT SPECIFICATION The unit shall be fully insulated providing excellent thermal and acoustic characteristics and shall be complete with a multi plate counter fl
55. rminals Heating Enable terminals 230V AC Boosts unit flow rate and initiates Re circulation fan damper operation if required Typical wiring example manual control of High Low flow rate by light switch UNIT SERVING KITCHEN AND BATHROOM Supply cord Green Yellow gel ala MAINS 230v N 50Hz L i Fuse ee 2A au 5 Pole isolator Light Summer switch bypass Double Pole kitchen switch switch Grey only used on bypass unit NUAIRE S MVHR Acoustic solution for MRXBOX95 WH1 WM2 Nuaire s First Fix and Acoustic Solution are designed to not only reduce noise but to improve the installation when wall or cupboard mounting the MRXBOX95 WH1 WM2 MVHR Units Offering the only complete MVHR acoustic and first fix solution to overcome both noise and ease the installation of heat recovery units Nuaire s solution addresses both duct and breakout noise provides an aesthetically pleasing cupboard installation for the home occupant and reduces installation errors and time Typical Installation FIRST FIX SOLUTION MRXBOX FF WH1 WM2 Nuaire s First Fix box is fixed to the underside of the floor slab at first fix stage of the build The box has four airflow chambers pre fitted with 204x60mm spigots Ceilings can then be boarded within MRXBOX FF WH the cupboard space easily and quickly without the risk of the spigots not aligning to the fan unit ACOUSTIC BOX MRXBOX AB WH1 WM2 Nuaire has
56. rost Protection C a ll Change No Days Away 21 Maximum 21 days gs DIMENSIONS 85mm i de 73mm Screen width 35mm Surface mounting depth 5 mm Screen depth 145mm 6mm Recessed mounting depth FLEXIBLE NUAIRE S MVHR M RXBOXY5AB WM1 with automatic summer bypass amp MRXBOX95 WMT1 The MRXBOXB95AB WM1 has been designed Sensors for the MRXBOX95 AB WM1 include with automatic summer bypass and the facility e MRXBOX95 PIR Passive Infra Red A low voltage sensor to commission the supply and extract ans detects movement and activates system Incorporates overrun i ve timer and timer adjustments independently on both minimum and maximum e MRXBOX95 HUM A low voltage sensor activates the system speeds in addition to the features you will find on when the RH level is above set point Incorporates overrun the standard MRXBOX95 WM1 timer and RH set point level adjustment MRXBOX95 RFI If fan failure occurs the audio visual indicator will flash a warning Both the MRXBOXBOX95AB WM1 and MRXBOX95 WM11 are designed to provide optimised balanced supply and extract mechanical ventilation with heat recovery Tempered air is delivered into living areas whilst extracting moisture laden air from wet areas creating comfortable well ventilated homes The unit uses the latest E generation of low voltage DC fans and motors counter flow heat exchanger a
57. rost protection e Integral adjustable run on timer e Fan failure indication e Integral S L terminal for boost from remote switch e g light switch e Indication and controls The unit shall have clear LED visual indication for maintenance servicing and operation mode i e summer bypass frost protection INTEGRAL AUTOMATIC SUMMER BYPASS MRXBOX95AB WM1 The bypass damper shall open automatically via a wax actuator allowing the air to bypass the heat exchanger to deliver fresh filtered air during the warmer months MRXBOX VSC VISUAL SYSTEM CONTROLLER The MRXBOX VSC is compatible with the Nuaire MRXBOX95 AB WM1 heat recovery units the controller comes complete with commissioning and end user functions The display will be a 3 2 LCD display and will remain on standby until such time the screen is touched The initial display will show the MVHR system status as listed below e Current Fan Speed e Current indoor outside temperature MRXBOX95AB units only e Indicate when the summer bypass is activated e Indicate when frost protection is activated e Indicate when the filters require cleaning changing NUAIRE S MVHR M RX BOX95AB WM 2 with automatic summer bypass amp MRXBOX95 WM2 The MRXBOX95AB WM2 has been designed with automatic summer bypass and the facility to commission the supply and extract fans independently on both minimum and maximum speeds Both the MRXBOX95AB WM2 and MRXBOX95 WM2 are de
58. round ventilation and boost speed via inbuilt minimum and maximum speed adjustment The fans shall have infinitely variable speed control UNIT SPECIFICATION The unit shall be fully insulated providing excellent thermal and acoustic characteristics and shall be complete with a multi plate counter flow high efficiency heat exchanger block with a thermal efficiency of up to 95 The heat exchanger shall be protected by G3 grade filters on fresh air inlet and system extract The heat exchanger and filters shall be accessible via the front access panel enabling quick and easy maintenance The unit shall have low energy high efficiency EC fan motor assemblies with sealed for life bearings the impellers shall be backward curved centrifugal type The motors shall be suitable of an ambient temperature of 40 C The unit shall be supplied complete with an insulated condensate drip tray and 21 5mm drain connection The unit shall be suitable for 150mm circular ducting The breakout noise level and power requirements shall be as detailed by the unit manufacturer and in accordance with the ventilation equipment schedule Units shall be MRXBOX95 WH1 or MRXBOX95AB WH1 as manufactured by Nuaire and shall be listed on the SAP Appendix Q database nuaire CONTROL OPTIONS All versions shall have the following functions integrally mounted within the fan unit on a purpose made PCB all such components pre wired and factory fitted by the manu
59. run hi timer and timer adjustments HEM MRXBOX95 HUM ANN A low voltage sensor activates the system when the RH level is above set point Incorporates Ss overrun timer and RH setpoint level adjustment Im MRXBOX95 RFI A If fan failure occurs the audio visual indicator will flash a warning mm Consultants Specification OPERATION The supply and extract system shall be wall cupboard mounted in accordance with the specification The combined supply and extract with heat recovery unit shall supply filtered fresh air to each of the habitable rooms and vitiated air shall be extracted from all wet areas e g bathroom en suite w c kitchen utility rooms etc The supply air shall be pre heated by the warm extract air via the integrated counter flow heat exchanger element The ventilation unit shall vary its speed and therefore the ventilation rate as it receives signals from one of the following e Switched live signal from light remote switches e Optional externally interconnected sensors When signals are received the fan shall alter its speed to adjustable normal and boost rates An adjustable run on facility is integrated into the unit which allows the fans to run on for between 1 and 60 minutes after the signals have been switched off The unit shall have the facility to commission the supply and extract fans independently on minimum speed continuous background ventilation and boost speed via inbuilt minim
60. running continuously not taking into account any heat recovery saving and based on SAP Appendix Q testing Hemispherical free field dBA nuaire Performance MRXBOX95 LH2 CODE DESCRIPTION o MRXBOX95 LH2 o OL 1 2 345 500 450 1 Multi room supply and extract 400 heat recovery s 350 2 Product range 300 3 Efficiency 969 4 Loft application 200 5 H2 High 2 Model 150 100 50 0 20 40 60 80 100 120 Air Volume Flow Rate l s Sap Appendix Q Test Results MRXBOX95 LH2 I Casing Application Specific Fan Power Heat Exchange W I s Efficiency Energy Saving Trust Best Practice Compliant Kitchen 1 Wet Room 0 81 91 Yes Kitchen 2 Wet Room Yes Kitchen 3 Wet Room Yes Kitchen 4 Wet Room Yes Kitchen 5 Wet Room Yes Kitchen 6 Wet Room 1 09 90 Yes Electrical amp Sound Maximum power consumption Watts 63 125 250 500 Open inlet Open Outlet Breakout Open inlet Open Outlet Breakout Open inlet Open Outlet Breakout Open inlet Open Outlet Breakout Open inlet Open Outlet Breakout Sound Power Levels dB re 1pW 6 11 Open inlet Open Outlet Breakout 36 40 40 32 38 38 34 39 36 24 38 30 19 30 21 The maximum power consumption shown above Watts is consumed on units running continuously not taking into account any heat recovery saving and based on SAP A
61. signed to provide optimised balanced supply and extract mechanical ventilation with heat recovery Tempered air is delivered into living areas whilst extracting moisture laden air from wet areas creating comfortable well ventilated homes The unit has the facility to commission the supply and extract fans independently on both minimum and maximum speeds The heat exchanger block can recover up to 90 of the normally wasted heat Both units are listed MRXBOX95 on the Product Characteristics Database eon Typical Installation INSTALLATION FEATURES Filter being removed F a Filter Code MVHR WM2 FILTERKIT Filter cover nuaire Performance MRXBOX95 AB WM2 CODE DESCRIPTION MRXBOX95 WM2 T ISO 5801 2007 AMCA 300 9 fv Type D 450 Air Density 1 2 kg m Multi room supply and extract heat recovery Product range 350 Efficiency 0 Wall cupboard application ai Medium duty 2 250 200 MRXBOX95AB WM 2 3 50 tt 1 2 3 4 56 100 A 40 50 60 70 80 9 uBR wN Fan Static Pressure Pa Product range Multi room supply and extract ml 0 heat recovery O 10 20 30 0 100 110 120 Efficiency Air Volume Flow Rate l s Automatic Summer Bypass Wall cupboard application Dn RK WD Medium duty Electrical amp Sound Maximum Sound Power Levels dB re 1pW power consumption Watts
62. t The maximum power consumption shown above Watts is consumed on units running continuously not taking into account any heat recovery saving and based on SAP Appendix Q testing NUAIRE S MVHR Sap Appendix Q Test Results MRXBOX95AB WM1 MRXBOX95 WM1 Application Specific Fan Power Heat Exchange Energy Saving Specific Fan Power Heat Exchange Energy Saving W I s Efficiency Trust Best Practice W I s Efficiency Trust Best Practice Compliant Compliant Kitchen 1 Wet Room 0 72 86 Yes 0 59 93 Yes Kitchen 2 Wet Room 0 87 86 Yes 0 69 92 ves SPIGOT LOCATION amp DUCTING REFERENCES Spigot 1 125mm dia extract air from dwelling Spigot 2 125mm dia exhaust air to outside Spigot 3 125mm dia intake air from outside Spigot 4 125mm dia supply air to house Condensate Tray Two removable G2 Filters Mounting Bracket on wall and rear of unit nuaire Technical MRXBOX95 AB WM1 DIMENSIONS MM Weight 16kg Front View Side View View from top ir 123 400 78 Filter Access tf O N I 8 I O N A Y 601 288 View from Bottom MRXBOX VSC CONTROL SCREEN COMPATIBLE WITH THIS UNIT Condensate take off Power Cable entry Electrical Details Please note the electrical connection of the unit must be carried out by a qualified electrician The unit is supplied with a
63. t the requirements of your project With Government legislation and building regulations for low leakage rates air tight buildings may lead to poor indoor air quality Nuaire s award winning wide range of MVHR solutions are 95 efficient and will quietly and effectively provide fresh filtered air all year round MVHR systems will retain heat that would otherwise have been lost to outside and warm incoming fresh air if required How does it work NO NEED TO OPEN WINDOWS TO VENTILATE Clean fresh air is continuously drawn into the property from outside through the supply air ducting BOOST FACILITY Both the supply and extract air can be boosted at any time by the home owner to increase the ventilation levels Light switches PIRs and Humidistats can be used HIGH EFFICIENCY FILTERS HELP CREATE A HEALTHY LIVING ENVIRONMENT Clean fresh air passes through the filter inside the unit and into the counter flow heat exchanger where it is warmed using the heat recovered from extract before it is delivered to the habitable rooms of the home PREVENTS CONDENSATION BY KEEPING MOISTURE LEVELS LOW Stale air is continuously extracted from the moisture producing areas such as kitchens and bathrooms The MVHR unit takes advantage of the heat by absorbing up to 95 of it and storing it in the heat exchanger All the options you need Ventilation is often overlooked or considered late in the construction when j
64. tch Grey Only used on bypass unit Kitchen switch NUAIRE S MVHR Performance MRXBOX95 LH1 Fan Static Pressure Pa Air Volume Flow Rate l s Sap Appendix Q Test Results CODE DESCRIPTION MRXBOX95 LH1 PF ot ot dl 1 2 3 45 1 Multi room supply and extract heat recovery Product range Efficiency Loft application H1 High 1 Model v aw N Application Specific Fan Power MRXBOX95 LH1 Heat Exchange Energy Saving Trust Best W l s Efficiency Practice Compliant Kitchen 1 Wet Room 0 61 91 Yes Kitchen 2 Wet Room Yes Kitchen 3 Wet Room Yes Kitchen 4 Wet Room Yes Kitchen 5 Wet Room 0 78 91 Yes Kitchen 6 Wet Room 0 92 90 Yes Casing Electrical amp Sound peel Sound Power Levels dB re 1pW Le power consumption 3m Curve Watts 63 125 250 500 1K 2K AK 8K Curve 1 Open inlet 48 AO Al 27 35 Open Outlet 67 63 55 46 53 Breakout By 54 A5 44 41 2 Open inlet 42 35 22 2e 32 Open Outlet 58 58 50 40 47 Breakout 44 46 37 36 35 3 Open inlet 34 28 le l 25 Open Outlet 49 49 40 33 38 Breakout 38 40 al 30 28 4 Open inlet 27 23 12 12 14 Open Outlet 39 af 30 22 25 Breakout 29 31 22 21 F 5 11 Open inlet 36 34 34 26 24 20 11 4 11 Open Outlet 37 38 38 1 30 24 21 8 16 Breakout a7 47 38 34 20 16 i 6 14 The maximum power consumption shown above Watts is consumed on units
65. test generation of low voltage DC fans and motors counter flow heat exchanger and easy accessible controls The heat exchanger block can recover up to 95 of the normally wasted heat The two independent fans has full speed control for background and boost ventilation rates as well as a run on timer facility This unit is listed on the Product Characteristics Database FLEXIBLE SOLUTION MRXBOX95 LOFT ensures a flexible solution with four 125mm dia OPTIONAL SUMMER BYPASS AVAILABLE Provides cooling during warmer months MRXBOX95B LOFT nuaire OPTIONAL SENSORS AND DETECTORS Customise MRXBOX95 LOFT for enhanced performance All supplied with pre plugged 10m data cable and incorporates status LED MRXBOX95 PIR passive infra red al and activates system Incorporates overrun A low voltage sensor detects movement timer and timer adjustments mm MRXBOX95 HUM A low voltage sensor activates the system when the RH level is above set point Incorporates overrun timer and RH setpoint level adjustment Inn L MRXBOX95 RFI ATI If fan failure occurs the audio visual indicator will flash a warning a ma lt aut FOR SMALLER HOUSES NUAIRE S MVHR Typical Installation MRXBOX95 LOFT FLEXIBLE LOFT MOUNTING OPTIONS Metal bracket attached to unit Washer Woodscrew A V Mount Ceiling joist Option 1 Side view example of an L Mounted on roof joists using four
66. tity of wet rooms Low extract rate LER equal to the Whole Dwelling Supply Rate The ventilation air flow rates for each apartment therefore must be individually determined Unit operation at the HER is typically initiated by manual switch and or light switch interface For the heating function there is a different airflow criterion to meet as the heating input must be delivered at maximum temperature of 50 deg C Again the heat loss conditions are specific to and must be determined for each apartment If the heat loads and supply temperature limit require supply flow rates that are greater than the standard ventilation rates this can be economically accomplished by means of the re circulation feature within the Nuaire AP MVHR LL RL unit The maximum supply air flow rate that can be achieved in this manner will be limited principally by the ductwork resistance and acceptable noise levels within the apartment HEAT RECOVERY BYPASS OPERATION The Nuaire AP MVHR LL RL unit incorporates a high efficiency counter flow heat recovery device with a 100 bypass facility It should be understood that the heat recovery bypass operation serves only to prevent unwanted heat gain in the supply air stream from the extract air stream It is a passive control measure the resultant supply air temperature in bypass mode being simply that of the outside air temperature In heat recovery mode the supply air temperature will fall betwe
67. to be mounted 7 B nearest to wall 7 N 2 a g ll x 1 h Af u LA Ln 30 COMPLETED SYSTEM Front view Side View aa Ma Fixings Y Is WO CI Le co co LA 2 LA m WO M Cross brace amp angle bracket Patress Consultants Specification MRXBOX FF WH1 WM2 The unit shall be supplied with 204mm x 60mm rectangular spigots to connect to the duct run with the ability to be fitted in eight separate positions reducing the requirement for bends in the system The unit offers the facility to be fitted directly to the mating sections without the need for spigots reducing breakout noise additional 150mm circular spigots to be supplied as an alternative option MRXBOX AB WH1 WM2 The unit offers the facility to be fitted directly to the MVHR unit and plenum chamber without the need for spigots reducing breakout noise however there is the capability to fit 150mm circular spigots as an alternative option The unit shall be fully lined with acoustic material offering excellent noise reduction Wall mounting brackets are to be supplied as part of the system to allow the MVHR unit to be raised after other system components are installed to form an airtight seal and enable the installation to be levelled The unit shall be clamped to the MRXBOX95 WH1 WMc2 unit to provide an efficient seal and ensure correct alignment The unit shall be fixed in
68. um and maximum speed adjustment The fans shall have infinitely variable speed control UNIT SPECIFICATION The unit shall be fully insulated providing excellent thermal and acoustic characteristics and shall be complete with a multi plate counter flow high efficiency heat exchanger block with a thermal efficiency of up to 95 The heat exchanger shall be protected by G2 grade filters on fresh air inlet and system extract The heat exchanger and filters shall be accessible via the front access panel enabling quick and easy maintenance The unit shall have low energy high efficiency d c fan motor assemblies with sealed for life bearings the impellers shall be backward curved centrifugal type The motors shall be suitable of an ambient temperature of 40 C The unit shall be supplied complete with an insulated condensate drip tray and 21 5mm drain connection The unit shall be suitable for 125mm circular ducting The breakout noise level and power requirements shall be as detailed by the unit manufacturer and in accordance with the ventilation equipment schedule nuaire CONTROL OPTIONS All versions shall have the following functions integrally mounted within the fan unit on a purpose made PCB all such components pre wired and factory fitted by the manufacturer e Independent control of background supply and extract flow rates e Independent control of boost speed supply and extract flow rates e Integral heat exchanger f

Nuaire Catalogue - Mechanical Ventilation & Heat Recovery

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Nuaire Catalogue - Mechanical Ventilation &amp; Heat Recovery

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Nuaire Catalogue - Mechanical Ventilation & Heat Recovery