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nuaire.co.uk

029 2085 8400

28. 07. 20. Leaflet Number 671838

Installation and Maintenance

The MRXBOXAB-ECO4-1Z Range of Units

Air supply

to lounge

in ceilings.

via Air Valve

Extract air

from

kitchen/

bathroom

in ceilings.

via Air Valve

Exhaust air from

kitchen/bathroom to

outside via louvre grille.

Minimum distance as specified

in building regulations.

Intake air

from outside

via louvre grille.

All duct between MVHR

unit and atmosphere to

be insulated*.

Exhaust air from

kitchen/bathroom to

outside via air brick.

Minimum distance as specified

in building regulations.

Intake air

from outside

via air brick.

All duct between MVHR

unit and atmosphere to

be insulated*.

*Insulated

supply duct.

*Insulated

supply duct.

Air supply

to lounge

in ceilings.

Extract

via Air Valve

air from

kitchen/

bathroom

in ceilings.

via Air Valve

Air supply

to bedrooms

in ceilings.

via Air Valve

Top of ceiling void.

Air supply to

bedrooms

in ceilings.

via Air Valve

*Insulated

extract duct.

*Insulated

extract duct.

MVHR unit.

Nuaire

MVHR-DRAIN

Condensate drain, uninsulated

drain pipe with min 5

fall running to SVP.

MVHR unit.

Nuaire

MVHR-DRAIN

Condensate drain, uninsulated

drain pipe with min 5

fall running to SVP.

Exhaust air from

kitchen/bathroom to

outside via air brick.

Minimum distance as specified

in building regulations.

Intake air

from outside

via air brick.

All duct between MVHR

unit and atmosphere to

be insulated*.

*Insulated

supply duct.

Air supply

to lounge

in ceilings.

Extract

via Air Valve

air from

kitchen/

bathroom

in ceilings.

via Air Valve

Air supply

to bedrooms

in ceilings.

via Air Valve

Top of ceiling void.

*Insulated

extract duct.

MVHR unit.

Nuaire

MVHR-DRAIN

Condensate drain, uninsulated

drain pipe with min 5

fall running to SVP.

4.0 DUCTING ARRANGEMENTS - STANDARD CONFIGURATION

Figure 11. Typical ducted arrangement for a unit using circular ducting.

Figure 12. Typical ducted arrangement for a unit using rectangular ducting.

New

ALSO FROM NUAIRE -

range of thermal ducting,

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

Содержание MRXBOXAB-ECO4-1Z

Страница 1: ... appropriate standards Ensure that the mains supply Voltage Frequency and Phase complies with the rating label Please note a clear working space is required around the installed unit to allow the cover to be removed and provide sufficient access for maintenance such as filter change A minimum of 480mm is required in front of the unit The fan must be installed indoors on a suitable structure away f...

Страница 2: ...of the enclosure can be removed and discarded the remaining screws securing the bracket to the MVHR unit can be loosened allowing the bracket to be removed before fully tightened to secure the panel in place 2 1 Mounting the MVHR Unit Due to the size and weight of the unit floor mounting is the preferred mounting method If this is not possible a solid wall is required however a structural engineer...

Страница 3: ...ation 6 l s Number of bedrooms in dwelling 1 2 3 4 5 Whole dwelling ventilation rate l s 1 2 13 17 21 25 29 1 The condensate must be discharged under a water level in a U trap drainpipe or an alternative drain method which acts as an airlock 2 The condensate discharge drain is a 32mm male threaded connection 3 If using a U trap please ensure the U trap has been filled to a suitable level of water ...

Страница 4: ...ons given in ADF 2010 can be used where security is not an issue In this case minimum high extract rate for the sanitary accommodation should be omitted from the step 2 calculation Step 3 The required airflow rates are as follows The maximum whole dwelling extract ventilation rate e g boost should be at least the greater of step 1 and step 2 Note that the maximum individual room extract rate shoul...

Страница 5: ...ms in ceilings via AirValve Insulated extract duct Insulated extract duct MVHR unit Nuaire MVHR DRAIN Condensate drain uninsulated drain pipe with min 5 o fall running to SVP MVHR unit Nuaire MVHR DRAIN Condensate drain uninsulated drain pipe with min 5 o fall running to SVP Exhaust air from kitchen bathroom to outside via air brick Minimum distance as specified in building regulations Intake air ...

Страница 6: ...ples Of Typical Wiring Layouts MAINS 230V 50Hz N L 3 Position Switch Ancillary code MRXBOX95 3SWITCH Blue Green yellow Brown Black Supply cord from unit Grey L 1 2 Fuse 5A MAINS 230V 50Hz N L 3 Pole Isolator 3 Position Switch Ancillary code MRXBOX95 3SWITCH Blue Green yellow Brown Black Supply cord from unit Grey L 1 2 Fuse 5A 2 Pole Isolator light Room Light switch Double Pole MAINS 230V 50Hz N L...

Страница 7: ...emoving front cover C C Ecosmart Connector Removable Plate 1 For required air flow rates please refer to the design specification for the property follow 2 4 or refer to building regulations ADF 2010 2 The unit should be run for a minimum of 10 minutes to reach steady state before commencing commissioning 3 The humidity sensor is initially set to its least sensitive position this should be adjuste...

Страница 8: ...as standard the supply fan will reduce to minimum speed Once the temperature rises above the set point the fan will return to its commissioned speed Please note this mode will only activate after ten days of continuous run time If commissioning of the unit is outside of this timeframe please notify the after sales department prior to site visit Nuaire recommend that filters are inspected every 6 m...

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