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05. 08. 21. Document Number 671823
Nuaire |
Western Industrial Estate
|
Caerphilly
|
CF83 1NA
|
nuaire.co.uk
MRXBOX(AB)-ECO3-AE
Installation Manual
1.2 Important Information
This manual contains important information on the safe and
appropriate assembly, transport, commissioning, operation,
maintenance, disassembly and simple troubleshooting of the product.
While the product has been manufactured according to the accepted
rules of current technology, there is still a danger of personal injury or
damage to equipment if the following general safety instructions and
the warnings contained in these instructions are not complied with.
•
Read these instructions completely and thoroughly before
working with the product.
•
Keep these instructions in a location where they are accessible
to all users at all times.
•
Always include the operating instructions when you pass the
product on to third parties.
1.3 Personal Protective Equipment
The following minimum Personal Protective Equipment (PPE) is
recommended when interacting with Nuaire product:
•
Protective Steel Toed Shoes -
when handling heavy objects.
•
Full Finger Gloves (Marigold PU800 or equivalent) -
when
handling sheet metal components.
•
Semi Fingerless Gloves (Marigold PU3000 3DO or equivalent)
- when conducting light work on the unit requiring tactile
dexterity.
•
Safety Glasses
- when conducting any cleaning/cutting operation
or exchanging filters.
•
Reusable Half Mask Respirators
- when replacing filters which
have been in contact with normal room or environmental air.
Nuaire would always recommend a site specific risk assessment by a
competent person to determine if any additional PPE is required.
2.0 INTRODUCTION
The ECO3-AE wall mounted range of units are designed to offer
improved sound levels and an aesthetically pleasing installation by
housing a Mechanical Ventilation with Heat Recovery unit (MVHR)
inside an acoustically lined enclosure.
The MVHR unit is fitted with two independent fans. Each fan has full
speed control for background and boost ventilation rates. To recover
heat from the extract air the heat exchanger block is utilised. The heat
exchanger can recover up to 95% of the normally wasted heat.
If the MVHR unit has integral automatic HX bypass (AB models
only),
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.
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2
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Airflow Through unit (Standard Unit)
Airflow Through OH unit (Opposite Hand Unit)
Transport Fixings
3.0 MECHANICAL INSTALLATION
Installation must be carried out by competent personnel in accordance
with the appropriate authority and conforming to all statutory
governing regulations. All mains wiring must be in accordance with the
current I.E.E. Regulations, or the appropriate standards. Ensure that the
mains supply (Voltage, Frequency and Phase) complies with the rating
label.
Allow a minimum of 360m in front of the MRXBOXAB-ECO3.
The fan must be installed indoors, on a suitable wall away from direct
sources of frost, heat and water spray or moisture generation. For a
vibration-free result the unit must be mounted to a solid wall.
The unit must remain switched on at all times to maintain
ventilation within the dwelling. Turning the unit off will cause long
term damage to the unit and building fabric.
3.1 Transport Fixings
To prevent damage during transportation the product is shipped with
securing fixings, these can be found front and centre of the enclosure
top panel (Figure 3). These must be removed before use, failure to do so
will result in excessive vibration and noise. The screws removed can be
discarded and replaced with rubber caps provided.
Intake air
from outside
Extract air
from house
to house
Supply air
Exhaust air
from house
to outside
Extract air
from house
Intake air
Exhaust air
from outside
from house
to outside
Supply air
to house
Intake air
from outside
Extract air
from house
to house
Supply air
Exhaust air
from house
to outside
Extract air
from house
Intake air
Exhaust air
from outside
from house
to outside
Supply air
to house
Spigot fixing plate
Transportation fixings
3.2 Wall Mounting
The unit is designed for wall mounting on a solid wall only, a
gypsum block/plasterboard wall will not suffice.
Examples of suitable installation are shown overleaf. The wall brackets
supplied should be secured to the wall using suitable fixings (supplied
by others) as per the dimensions given in figure 4. The head of the
chosen fixing should protrude no more than 8mm from the wall
bracket. The enclosure assembly can then be lifted using suitable
equipment and moved into position so it is sitting directly on the wall
brackets (ensuring the rear panel of the enclosure is not in contact
with the wall bracket fixings). The enclosure can be secured to the wall
brackets using the 4x M8 fixings supplied.
No part of enclosure should be in contact with the building structure,
the only components that should be in contact are the wall mounting
brackets.
Care must be taken to ensure the unit is installed true in all 3
dimensions. Failure to do so may result in overflow from the
internal condensation drip tray.
