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nuaire.co.uk
029 2085 8400
28. 10. 19. Leaflet Number 671566
The EMC Directive
2014/30/EU
The Low Voltage
Directive
2014/35/EU
FLATMASTER
Low Energy Positive Input Ventilation Unit
Installation and Maintenance
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.
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.
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,
Approved 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).
The unit can be turned through 180° to any angle if required.
Rear entry
‘Blank off’ plate
‘Blank off’ plate
Spigot insert
Alternative
inlet position
Figure 1. Typical installations show unit with top discharge.
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. Fitting spigot inserts.
2.2 Fixing the unit to the wall
The unit has three mounting feet. Mark through these feet when
the unit is in the correct position. Drill and plug wall with suitable
fixings. Remove PCB cover and feed the electrical supply cable
through the grommet hole (standard 1mm three core lighting cable is
recommended) in the rear of the unit screw unit to wall (see fig. 3).
Installers must ensure the grommet provided or other suitable
insulated grommet/bushing is used for cable entry.
Supply
cable
position
Supply
cable
(optional
position)
AIRFLOW
Right Hand Discharge (when viewed from front)
Figure 3. Supply cable must be secured by passing RH or LH of unit
to clamp cable to the wall (Rear view of unit shown).
