NuAire DRIMASTER 2000

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Nuaire Limited Western Industrial Estate Caerphilly United Kingdom CF83 1NA

T: 029 2088 5911 F: 029 2088 7033 E: info@nuaire.co.uk W: www.nuaire.co.uk

DRIMASTER 2000

and DRI 2000-3S

Anti-Condensation & Whole House Ventilation Unit

Installation and Maintenance

Important notes to installers

The Nuaire Drimaster range has been curing severe condensation

problems for over 20 years in some of the worst affected

properties throughout the world.

Its successful operation depends entirely upon the unit being

installed strictly in accordance with these instructions.

We would, therefore, respectfully suggest that you read through

this guide in its entirety before commencing installation and then

go through this guide step by step to ensure a satisfactory

completion.

Whilst the installation of the Drimaster unit may be achieved by a

suitable craftsman, the provision of the electrical supply and the

connection of the unit to the mains must be carried out by a

qualified electrician.

The unit has a 5 year warranty starting from the day of delivery and

includes parts and labour for the first year. The remaining 4 years

covers parts only. This warranty is conditional on the following:-

a) That the unit is installed strictly in accordance

with this guide.

b) That the unit filters are removed and cleaned or

replaced at the recommended intervals.

c) If a floor is higher than 4.5m the requirements in sections

3.2 and 8.1 must be followed.

The unit represents a significant financial outlay on the part of the

user/specifier and the unique 5 year guarantee is important to them.

We make a point of advising them that the installer is provided with

detailed instructions regarding installation/guarantee registration

and therefore has the responsibility of ensuring that the unit is

guaranteed for the user/specifier.

Operation

The Drimaster provides whole home ventilation using the Positive

Input Ventilation principle. Essentially 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 Drimaster units are supplied with a remote temperature sensor

that works in conjunction with the units internal sensor. This sensor

continuously monitors the temperature in the loft and house,

boosting the air volume when the loft temperature is greater than

the house (heat recovery mode).

If the loft temperature becomes excessive the unit will switch to

standby mode (no airflow). Once installed, the airflow can be set to

suit the house size and, if required, the way it responds to the

temperature changes within.

1.0 Loft Inspection

Check to ensure that the loft has adequate ventilation. Look for

ridge vents, tile vents, eaves vents and continuous air gaps etc.

making sure none are blocked. In older properties these vents may

not be provided. However, there should be enough ‘leakage’ to

accommodate the requirements of the Drimaster unit. A useful way

of checking such lofts is to close the hatch, switch off the lights

and look for any daylight penetration. If you can see daylight it is

reasonable to assume that the loft has ventilation.

There may be occasions where a loft is so well sealed that additional

ventilation may have to be provided by the owner/occupier. This will

not only assist the operation of the Drimaster, but will help prevent

possible expensive structural damage caused by inadequate air

movement in the loft itself. It should be noted that there cannot be

too much ventilation into the loft.

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.

2.0 Siting the Diffuser position

The diffuser has a unique air throw pattern and it is essential that it

is located correctly in the central hallway in single story properties

or in the ceiling of the top floor landing on 2 or more storey dwellings.

As can be seen in figure 2 the diffuser discharges air evenly from all

four sides along the underside of the ceiling.

Figure 2. Diffuser (viewed from below).

DRImaster

NUAIRE

Sensor, minimum of

3 metres from diffuser.

Figure 1.

Leaflet Number 671109 November 2011

Airflow from four sides

The EMC Directive

014/30/EU

The Low Voltage

directive

014/35/EU

Speed Setting Minimum distance of diffuser from wall

1 100mm

2 155mm

3 400mm

4 625mm

5 850mm

6 1000mm

Note: The positioning of

the diffuser should be in

strict accordance with the

table shown below to

ensure correct operation:-

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Summary

Important Notes & Initial Checks

Loft Inspection

Ensures adequate loft ventilation and checks for potential issues like blocked vents or air leaks.

Siting the Diffuser Position

Provides guidance on the correct placement of the air diffuser for optimal whole-house ventilation.

Unit Installation Procedures

Fitting the Diffuser

Detailed instructions for installing the air outlet diffuser into the ceiling, with options for plastic or painted types.

Fitting the Drimaster Unit

Describes standard and optional methods for mounting the main unit in the loft space using fixings or brackets.

Optional AV Mounting

Details on using an optional kit to mount the unit to roof joists for enhanced stability.

Filter Fitting

Instructions on how to attach the air filters to the main body of the unit.

Electrical & Sensor Installation

Filter Maintenance and Replacement

Guidance on filter servicing and replacement intervals, typically every five years.

Electrical Connection

Essential safety information and procedures for connecting the unit to the electrical supply by a qualified electrician.

Smoke;Carbon Monoxide Alarm Integration

Information on linking the unit to smoke/CO detectors for automatic shutdown.

Remote Sensor & Boost Facility

The Remote Sensor

Details about the remote temperature sensor, its LED indicators, and its role in heat recovery mode.

Siting the Remote Sensor

Instructions for selecting a suitable location and mounting the remote sensor correctly.

Optional BOOST Facility

Instructions on wiring a switch to manually boost the unit's airflow to maximum speed.

Operational Settings & Maintenance

Speed Settings

Explains the 6 air volume settings and how to select them using the unit's indicator panel.

Temperature Control Options

Details 5 different automatic operating modes based on loft and room temperatures.

Selecting the Speed

Step-by-step guide on how to adjust the unit's fan speed.

Temperature Default Settings

Information on the factory default temperature sensing settings.

How to Reset 5 Year Filter LED

Procedure for resetting the filter replacement reminder after servicing.