Low Energy Positive Input Ventilation Unit
Installation and Maintenance
IMPORTANT NOTES TO INSTALLERS
The
FLATVENT
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 Flatvent 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.
The unit represents a significant financial outlay on the part of the
user/specifier and the unique 5 year warranty 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.
1.0 INSTALLATION
The unit is designed to take fresh air from outside, clean the air, warm it (if fitted
with heater) and discharge it into the central hallway via a system of ducting
supplied by the installer. The dwelling internal air discharge 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 eg. by locating the discharge grille
above a radiator.
Before commencing installation decide the best position for the unit and where
the fresh air input 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 180o to
any angle if required.
Figure 1. (above) Typical installations show unit with top discharge.
FIXING THE UNIT TO THE WALL
The unit has four mounting pads. Mark through these pads 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.
POINTS TO CONSIDER
1.
The inlet ducting should be kept as short as possible to avoid
condensation build up on the ducting surface (see figs 5/6).
2.
Can the discharge grille be located to take advantage of existing
heat sources?
3.
Find the shortest, most direct route from outside of the unit and then to
the discharge grille using the least number of bends (these bends
increase the airflow resistance).
4.
Note the location of any joists, pipes, electrical cables etc.
5.
Allow adequate access to the front cover to allow filter cleaning?
6.
Refer to the relevant Building and Electrical Regulations.
DATASHEET
Where the systems are installed in flats where regulations require the provision of a
protected entrance hall or protected enclosure and the outlet of the systems are
within that enclosure it is necessary to ensure that the safety of the enclosure is not
compromised either in relation to its fire resistance or the entry of smoke. Smoke
detectors must be connected to the fan so that it shuts down if smoke enters the
ductwork. Ductwork must be of steel, with the point of fire penetration stopped, or if
non fire-resistant ducting is used, it must be protected in fire-resisting construction
up to the point where it penetrates the wall of the protected entrance hall or
protected enclosure. Where the systems are installed in flats where these regulatory
provisions do not apply, good installation practice should be observed; for example
the use of smoke detectors to control the fan, to ensure that occupant safety levels
are not reduced. For more information please refer to the Building Regulations,
Approved Document B (Fire safety) – Volume 1: Dwelling houses (2006 Edition)
IMPORT
ANT
Rear entry
‘Blank off’ plate
Installation &
Maintenance
Figure 1.
Typical installations show
unit with top discharge.
Alternative inlet
position
Rear entry
‘Blank off’ plates
