nuaire DRI-ECO-3STOREY Whole House Ventilation Unit for 3 Storey Properties Instruction Manual

: June 6, 2024
: Nuaire

nuaire DRI-ECO-3STOREY Whole House Ventilation Unit for 3 Storey Properties Instruction Manual

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.
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.

Hazard Symbols

REFER TO INSTRUCTION MANUAL

Read and understand the installation and maintenance manual before installing, operating or maintaining this product

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.

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.

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.

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.

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.

DIFFUSER INSTALLATION

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.

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).

Fitting the Aluminium Diffuser

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).

FILTER INSTALLATION

DRI-ECO-3STOREY INSTALLATION

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.

Joist Hung

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.

Anti-Vibration Mounts Anti-Vibration
Mounts

ELECTRICAL INSTALLATION

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.

Wiring Diagram

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.

Alarm Wiring

CONTROLS

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

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.

Selecting a Speed

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.

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.

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.

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.

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.

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.

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 02920 858 400
aftersales@nuaire.co.uk

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.