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nuaire.co.uk 

029 2085 8400

23. 06. 17. Leaflet Number  670901

The EMC Directive

 

2014/30/EU

The Low Voltage 
Directive

2014/35/EU

FLAT2000L/R

Low Energy Positive Input Ventilation Unit

 

Installation and Maintenance

1.0 INTRODUCTION

The Nuaire Drimaster/Flatmaster 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.

Units are supplied assembled and include a thermostatically controlled 
heater. A unit mounted override switch is provided. A ‘BOOST’ speed 
facility for additional ventilation is included. This is operated by a 
remote switch (supplied).

The FLAT2000 L/R is a ‘handed’ product, with the L/R signifying the 
discharge direction, as viewed from the front. The FLAT2000L unit is 
supplied arranged for LEFT HAND discharge of air. The FLAT2000R unit 
is supplied arranged for RIGHT HAND discharge of air.

2.0 INSTALLATION

IMPORTANT

Where the systems are installed in flats, ensure all regulatory  

provisions are adhered to. Where the systems are installed in flats 

where these regulatory provisions do not apply, good installation 

practice should be observed. 

For more information please refer to the Building Regulations, Ap-

proved Document B (Fire safety) – Volume 1: Dwelling houses (2006 

Edition)

The unit is designed to take fresh air from outside, clean the air, and 
discharge it into the central hallway via a system of ducting supplied by 
the installer.

The dwelling supply grille is usually installed at high level in a central 
location within the hallway, although discharging the air down the 
length of the hallway (away from the front door) should also prove 
acceptable. Unit performance may be enhanced if an existing heat 
source can warm the discharged air e.g. by locating the discharge grille 
above a radiator.

Before commencing installation decide the best position for the unit 
and where the fresh air is to come from and be discharged to. The unit 
can be installed in many different configurations and is supplied with 
enough interchangeable spigots to enable it to be used with either 
round (100mm) or rectangular ducting (121mm x 60mm).

500mm

‘Blank off’ plate.

Inlet position.

Alternative inlet position.

Heater

Discharge grille.

Right hand Flatmaster 
unit shown.

Figure 1. Typical installation of a right handed unit with top 
discharge (FLAT2000R). 

2.1 Spigot inserts

The unit is designed to be used with rigid ducting only. Ensure that 
when the ducting is fitted it is secured in place using wall brackets and 
screws on the duct as close to the spigots as possible to prevent the 
spigot inserts (fig 1) or rigid ducting from being removed or accidently 
knocked off. If it is necessary to fit flexible ducting then the spigot 
inserts should be glued in place, using super glue Loctite 454 Gel, at the 
clip points 1, 2, 3 & 4 for all spigot inserts (see fig. 2).

Outlet

Inlet

1

4

2

3

1

4

2

3

1

4

2

3

Clip & glue points

Alternative inlet position

‘Blank off’ plate

Figure 2.  

IMPORTANT

The heater outlet MUST NOT be left exposed, a minimum 

duct length of 500mm is required between the unit heater and 

discharge grille. 

IMPORTANT

Whilst the installation of the Flatmaster 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.

IMPORTANT

A minimum distance of 500mm is required 

between the grille and the unit heater.

Summary of Contents for FLAT2000L

Page 1: ...ling supply grille is usually installed at high level in a central location within the hallway although discharging the air down the length of the hallway away from the front door should also prove acceptable Unit performance may be enhanced if an existing heat source can warm the discharged air e g by locating the discharge grille above a radiator Before commencing installation decide the best po...

Page 2: ...to the wall Rear view of unit shown 2 4 Inlet Outlet grille installation If a fly screen is fitted it should be removed from both the internal and external grille NOTE When installing the internal grille the louvres must slant upwards to ensure the correct air circulation and the avoidance of unpleasant down draughts The outside wall input grille louvres must slant downwards Standard 100mm dia duc...

Page 3: ...a switch in the fixed wiring in accordance with current IEE wiring regulations Electrical connection Please note the electrical connections to the unit should be carried out by a qualified electrician With the PCB cover removed see figure 4 pull the PCB forward to gain access to earth post behind Connect Earth cable to Earth post next to the grommet hole Slide PCB into slot and connect the mains s...

Page 4: ...h is located in this document and includes the replacement of the filter Our part number FLAT FILTERKIT every 12 months this interval may need to be shortened if the unit is operating under adverse environmental conditions 7 0 WARRANTY 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 warra...

Page 5: ...tional or incomplete Product Safety Essential Operational Checks Product Condition Installation Project Address Date Of Check Unit Code Unit Serial Number No action required Remedial action required Make safe and corrective action required Figure 10 FLAT2000 unit with cover installled Indicate Inlet Position 3 4 5 or 6 Indicate Supply Outlet Position Approx length of ductwork on inlet 600mm min Ap...

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