NuAire DRI-ECO-3STOREY User manual

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18. 02. 21. Document Number 671770Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
DRI-ECO-3STOREY
Whole House Ventilation Unit For 3 Storey Properties
Installation Manual
1.0 SAFETY INFORMATION
• The provision of the electrical supply and the connection of the DRI-ECO-3STOREY unit to the
mains must be carried out by a qualified electrician.
• Isolate from power supply before removing any covers. During installation/maintenance ensure
all covers are fitted before switching on the mains supply.
• Means for disconnection must be incorporated in the fixed wiring as shown in the wiring diagram
in accordance with IEE wiring or national wiring rules.
• In order to avoid a hazard due to inadvertent resetting of the thermal cut-out, this appliance
must not be supplied through an external switching device, such as a timer, or connected to a
circuit that is regularly switched on and off by the utility.
• The fan unit is supplied with a fused spur. The three core mains cable from the fan unit should
be connected to a fixed wiring installation, via the spur, in accordance with current IEE wiring
regulations.
• If the mains supply cord to the PSU is damaged, it must be replaced by the manufacturer, its
service agent or similarly qualified persons in order to avoid a hazard.
• Disconnection from mains must be incorporated within the fixed wiring and shall have a
minimum contact separation of 3mm in accordance with latest edition of the wiring regulations.
• The CO2 sensor requires a 230V power supply. Remove the front panel as per the humidity
sensor and release the terminal cover via a fixing lug on the rear of the sensor. Refer to the
wiring diagram provided and connect the supply to the terminal box. Finally the sensor may be
mounted to the wall (screws are not provided).
• It is important to ensure that the diffuser is NOT placed within 1 metre of a smoke alarm. If the
diffuser cannot be repositioned, two sides of the diffuser must be closed off using the air dams
supplied to encourage the air through the remaining open sides that faces at least 1.5 metres of
unobstructed area away from the smoke alarm sensor.
• If the unit is required to switch off in the event of smoke/CO detection, alarms are available with
separate relay bases from 3rd party companies. This is a mandatory requirement for all units
installed in a 3 Storey property.
• The flexible duct (maximum length 2m) is connected to the main unit by inserting the duct over
the outlet duct and held in place using the supplied cable tie.
• This appliance can be used by children aged from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in a safe way and understand
the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance
shall not be made by children without supervision.

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18. 02. 21. Document Number 671770Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
DRI-ECO-3STOREYInstallation Manual
• Precautions must be taken to avoid the back-flow of gases into the room from the open flue of
gas or other fuel-burning appliances.
1.1 Hazard Symbols
REFER TO INSTRUCTION MANUAL
Read and understand the installation and maintenance manual before installing,
operating or maintaining this product.
1.2 Important Information
This manual contains important information on the safe and
appropriate assembly, transport, commissioning, operation,
maintenance, disassembly and simple troubleshooting of the product.
While the product has been manufactured according to the accepted
rules of current technology, there is still a danger of personal injury or
damage to equipment if the following general safety instructions and
the warnings contained in these instructions are not complied with.
•Read these instructions completely and thoroughly before
working with the product.
•Keep these instructions in a location where they are accessible
to all users at all times.
•Always include the operating instructions when you pass the
product on to third parties.
1.3 Personal Protective Equipment
The following minimum Personal Protective Equipment (PPE) is
recommended when interacting with Nuaire product:
•Protective Steel Toed Shoes - when handling heavy objects.
•Full Finger Gloves (Marigold PU800 or equivalent) - when
handling sheet metal components.
•Semi Fingerless Gloves (Marigold PU3000 3DO or equivalent)
- when conducting light work on the unit requiring tactile
dexterity.
•Safety Glasses - when conducting any cleaning/cutting operation
or exchanging filters.
•Reusable Half Mask Respirators - when replacing filters which
have been in contact with normal room or environmental air.
Nuaire would always recommend a site specific risk assessment by a
competent person to determine if any additional PPE is required.
2.0 INTRODUCTION
The DRI-ECO-3STOREY provides whole home ventilation using
the Positive Input Ventilation principle. The concept is to introduce
fresh, filtered air into the dwelling at a continuous rate, encouraging
movement of air from inside to outside.
To achieve this the unit is mounted in the loft space, drawing air
through the filters and inputting it, at ceiling level, into the property.
The DRI-ECO-3STOREY fan unit includes an internal sensor to regulate
the fan speed according to the temperature of the loft. The internal
sensor is to increase airflow to the dwelling when the loft is warmer
than the house. The units ‘Fixed Temperature Heat Recovery’ strategy
shall be achieved via a sensor located in the unit and shall improve
energy performance accordingly. The aluminium ceiling vent supplied
includes an intumescent closure element.
Once installed, the airflow can be set to suit the house size and, if
required, the way it responds to the temperature changes within.
3.0 GENERAL INSTALLATION
Successful operation of the fan depends entirely upon the unit being
installed strictly in accordance with these instructions.
Please read through this guide in its entirety before commencing
installation and follow step by step to ensure a satisfactory completion.
Whilst the installation of the DRI-ECO-3STOREY unit may be achieved
by suitable persons, the provision of the electrical supply and the
connection of the unit to the mains must be carried out by a qualified
electrician.
Warning: Isolate from power supply before removing any covers. During
installation/maintenance ensure all covers are fitted before switching
on the mains supply.
This appliance can be used by children aged from 8 years and above
and persons with reduced physical, sensory or mental capabilities or
lack of experience and knowledge if they have been given supervision
or instruction concerning use of the appliance in a safe way and
understand the hazards involved. Children shall not play with the
appliance. Cleaning and user maintenance shall not be made by
children without supervision.
Precautions must be taken to avoid the back-flow of gases into the
room from the open flue of gas or other fuel-burning appliances.
Means for disconnection must be incorporated in the fixed wiring as
shown in the wiring diagram in accordance with IEE wiring or national
wiring rules.
CAUTION: In order to avoid a hazard due to inadvertent resetting
of the thermal cut-out, this appliance must not be supplied
through an external switching device, such as a timer, or connected
to a circuit that is regularly switched on and off by the utility.
3.1 Loft Inspection
Check to ensure that the loft has adequate ventilation. There may be
occasions where a loft is so well sealed that additional ventilation may
have to be provided by the owner/occupier.
Ensure that all water tanks are covered and sealed.
Check that all water pipes are lagged.
Ensure that any extract fans are discharging to outside and not into the
loft.
Check that the loft hatch is tightly sealed.
Ensure that all holes in the ceilings are sealed i.e. ceiling light fittings
etc. A visual inspection of any flues or chimneys for leakage in the loft
should be carried out by the installer.
If any leakage points are found, or if there is any doubt at all, then the
installer should advise the house owner/provider as soon as possible
and seek instruction from them before proceeding with the installation.

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18. 02. 21. Document Number 671770Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
DRI-ECO-3STOREYInstallation Manual
5.0 FILTER INSTALLATION
The filter has a push fit rim to attach itself to the main body of the unit.
Offer the filters up to the unit and apply a small amount of pressure to
the filters rim (by hand). The filter will clip into place.
The unit can then be attached to the roof via the cord provided (or fixed
to the floor joists using the optional anti vibration mounting kit).
2 Filter Installation
6.0 DRI-ECO-3STOREY INSTALLATION
6.1 Joist Hung (Standard Mounting)
The standard method of installation is to suspend from a convenient
roof beam via the cord supplied (Note: unit weight = 3.5 kg). The
method of locating the cord to the roof timber is the responsibility of
the installer.
The flexible duct (maximum length 2m) is connected to the fan unit
by inserting the duct over the fan outlet and held in place using the
supplied cable tie. This method is repeated when connecting the duct to
the ceiling vent. Note: Ensure all duct joints are airtight.
The flexible ducting should NOT be installed in a compressive
state, as this will negatively impact on the performance of the unit.
3 Joist Hung Unit
6.2 Anti-Vibration Mounts (Optional)
The AV kit contains all the parts necessary to complete a joist mounted
installation. If AV mounts are required, the kit can be purchased direct
from Nuaire using the following part number: 771393.
Lower the unit with battens (not supplied) attached to the joists. Mark
and drill the 12mm diameter clearance holes required in the ends of
the battens. Place anti-vibration mounts above and below each batten
fixing point and, using the 4 large screws and special washers, fix the
unit to the joists.
Do not overtighten the fixings. The distance from the top washer to
the joist when installed must not be less than 50mm.
4.0 DIFFUSER INSTALLATION
4.1 Siting the Diffuser
The diffuser has a unique air throw pattern and it is essential that it is
located correctly in the central hallway in single storey properties or in
the ceiling of the top floor landing on 2 or more storey dwellings.
The diffuser discharges air evenly in all directions along the underside of
the ceiling.
Speed Setting Minimum Distance Of Diffuser From Wall
1 100mm
2 155mm
3 400mm
4 625mm
5 850mm
6 1000mm
SMOKE ALARMS - It is also important to ensure that the diffuser is
NOT placed within 1 metre of a smoke alarm.
If the diffuser cannot be repositioned, the diffuser must be positioned
so as to encourage the air through the 2 open sides that face at least 1.5
metres of unobstructed area away from the smoke alarm sensor.
4.2 Fitting the Aluminium Diffuser (with Intumescent
Fireblock)
Cut a 200mm hole in ceiling and align the top portion of unit (A) above
the ceiling over the hole. Position the central ceiling plate (B) on the
ceiling in the room ensuring the central hole is aligned with the hole
in the ceiling. Use the 4 screws to fix (B) to (A) through the 4 studs
positioned on the upper side of (B). Screw bottom part of the unit (C)
to the ceiling plate (B) through the plastic spacers and into the 2 studs
positioned on the upper side of (A).
(B)
(C)
(A)
Spigot Clamp
(A) Spigot Plate
(B) Diffuser
(C) Diffuser Cap
1 Aluminium Diffuser Overview

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18. 02. 21. Document Number 671770Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
DRI-ECO-3STOREYInstallation Manual
4 Anti-Vibration Mounted Unit
5 Anti-Vibration Mount Detail
7.0 ELECTRICAL INSTALLATION
7.1 Electrical Information
The electrical connection of the unit must be carried out by a qualified
electrician.
Voltage: 230V 1ph 50Hz
Consumption: 1.6W(min) 15.3W(max)
Fuse size: 1 Amp
The unit is supplied with a pre-wired power supply. This power supply
unit has a metal bracket incorporating fixing holes, which should be
used to fit the power supply to a suitable surface e.g. a wooden joist.
The fan unit is also supplied with a fused spur. The two core mains
cable from the power supply should be connected to a fixed wiring
installation, via the spur, in accordance with current IEE wiring
regulations.
Disconnection from mains must be incorporated within the fixed wiring
and shall have a maximum contact separation of 3mm in accordance
with latest edition of the wiring regulations.
7.2 Wiring Diagram
6 Unit Wiring
L
N
Power
Supply
Fan
Unit
2 Pole
Isolator
(By Others)
24V
DC
Fused Spur
(Supplied)
1 amp
Mains
230V
50Hz
230V
AC
8.0 SMOKE / CARBON MONOXIDE ALARM
AUTOMATIC SHUT DOWN
If the unit is required to switch off in the event of smoke/CO
detection, alarms are available with separate relay bases from
companies such as:
Kidde – www.kiddesafetyeurope.co.uk
Aico Ltd – www.aico.co.uk
This is a mandatory requirement for all units installed in a 3 Storey
property.
POWER
SUPPLY
FAN
UNIT
Mains power Smoke/CO detector
with NO/NC contacts
NC NO
N
L
N
L
C
230V
Supply
230V 24V
For information only,
refer to manufacturer’s
specific instructions.
7 Alarm Wiring
9.0 CONTROLS
9.1 Speed Settings
The unit has 6 air flow rate (speed) settings, 1-6. Switches to control
the speed settings and the display are located on the rear of the fan
unit. The following table shows the flow rates and their corresponding
speed settings.
As an example a one bedroom bungalow should be set to speed 1, and
a large 5 bedroom detached property would require speed 6.
Speed Setting Airflow Rate (litres / Second)
0 Standby (0)
1 10
2 20
3 30
4 40
5 50
6 60
9.2 Selecting a Speed
When power to the unit is switched on the display will show the
temperature control option for 2 minutes. Once the start-up pattern
has completed you may now press the “up” or “down” switch to choose
the flow rate appropriate to the property you are installing the unit in.
8 Selecting a Speed
UP DOWN
9.3 Setting the Temperature Control Option
When delivered, the unit is set to temperature setting 1 as a default.
To change this setting, switch the power to the unit on. The display on
the rear of the fan unit will show the temperature control option for
2 minutes and the unit will being running at speed 6. In this time you
can change the temperature setting by pressing and holding the “up”
button. The display will show a flashing value of 1 and will increase
every 4 seconds. Once you have reached the temperature setting you
require press the “down” button to store the setting. The fan will now
enter into its normal speed setting mode and a speed can be selected
at this point.

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18. 02. 21. Document Number 671770Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
DRI-ECO-3STOREYInstallation Manual
10.0 MAINTENANCE
Isolate before commencing work, make sure that the unit, switched
live and Nuaire control are electrically isolated from the mains
supply and switched live supply.
It is important that maintenance checks are recorded and that the
schedule is always adhered to, in all cases, the previous report should
be referred to.
10.1 Filter Maintenance
The filters are required to be changed every five years, failure to do so
may impair the performance and energy efficiency of this unit. The unit
display will show the letter ‘C’ once 5 years of use has elapsed.
New filters can be purchased direct from Nuaire using the following
part number: DRIPOS2001-FILTERKIT (five year filter). To reset the
change filter message, press and hold BOTH “up and “down” button
until the letter ‘C’ starts to flash then release and press the “down”
button.
If the units’ performance has been reduced dramatically or black dust
becomes visible around the outlet diffuser, check that the filter has not
become dislodged in any way.
11.0 WARRANTY
The 5 year warranty starts from the day of delivery and includes parts
and labour for the first year. The remaining period covers replacement
parts only.
This warranty is void if the equipment is modified without
authorisation, is incorrectly applied, misused, disassembled, or not
installed, commissioned and maintained in accordance with the details
contained in this manual and general good practice.
The product warranty applies to the UK mainland and in accordance
with Clause 14 of our Conditions of Sale. Customers purchasing from
outside of the UK should contact Nuaire International Sales office for
further details.
Failure to maintain the unit as recommended will invalidate the
warranty.
Where a floor/room is more than 4.5m tall, the fan unit must be
fitted with a 3 storey aluminium diffuser and requirements in
section 8.0 followed.
12.0 END-OF-LIFE AND RECYCLING
Where possible Nuaire use components which can be largely recycled
when the product reaches its end-of-life:
•Fans, motors, controls, actuators, cabling and other electrical
components can be segregated into WEEE recycling streams.
•Sheet metal parts, aluminium extrusion, heating/cooling coils and
other metallic items can be segregated and fully recycled.
•EPP, plastic ducting, nylon corner pieces, plastic heat exchangers,
packaging material and other plastic components can be
segregated into mixed plastic and widely recycled.
•Cardboard packaging, wood, used filters and other paper
components can be largely recycled or fully processed in energy
from waste centres.
•Remaining Items can be further segregated and processed in
accordance with the zero waste hierarchy. Please call After Sales
Support for further information on items not listed above.
Ensure that Nuaire product is made safe from any electrical / water
/ refrigerant supplies before dismantling commences. This work
should only be undertaken by a qualified person in accordance with
local authority regulations and guidelines, taking into account all
site based risks.
13.0 FREQUENTLY ASKED QUESTIONS
While very rare, issues with newly installed units can occur. Typically
these issues can be easily solved by referring to the below table.
Symptom Cause Solution
Fan not
running.
NO power to the unit
(Display is NOT lit).
Ensure unit has not been
switched off or that the local
fuse has not blown.
Software error -
Power to the unit
(Display is lit).
If electricity present, power
off, wait and power on again
– this may restart the unit.
Fan failure - Power to
the unit (‘F’ is flashing
on display).
Fan has failed and a
replacement unit is required.
High loft
temperature.
This is normal, see
temperature control options.
14.0 AFTER SALES AND REPLACEMENT PARTS
For technical assistance or further product information, including spare
parts and replacement components, please contact the After Sales
Department.
If ordering spares please quote the serial number of the unit together
with the part number, if the part number is not known please give a full
description of the part required. The serial number will be found on the
identification plate attached to the unit casing.
A QR code linking directly to the Nuaire website is located behind the
diffuser plate and can be used to order spare parts and replacement
components.
Telephone [phone]
[e-mail]
Technical or commercial considerations may, from time to time,
make it necessary to alter the design, performance and dimensions
of equipment and the right is reserved to make such changes without
prior notice.

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18. 02. 21. Document Number 671770Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
DRI-ECO-3STOREYInstallation Manual
NOTES

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18. 02. 21. Document Number 671770Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
DRI-ECO-3STOREYInstallation Manual
NOTES

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18. 02. 21. Document Number 671770Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
DRI-ECO-3STOREYInstallation Manual
NOTES