Intended Use - Maico EN 20 Installation And Operating Instructions Manual

3 Intended use

• Health risk due to deposits on the unit
(mould, bacteria, dust etc.) after the fan has
not been used for a long time. Clean fan at
regular intervals, especially after the fan has not
been used for a long time.
• Attention: A fan that is not mounted cor-
rectly may result in non-intended operation
or impermissible operation. Ensure that for-
eign objects cannot be drawn into the fan and
ducts. With a free inlet, fit a protective grille
(e.g. SG ../ SGR .. protective grille). The fan
may be operated only if the protection against
accidental contact with the impeller is guaran-
teed to be in accordance with DIN EN ISO
13857.
• Risk of injury and risk to health in the event
of changes or modifications or if compon-
ents which are not permitted are used. The
unit may only be operated with original compon-
ents. Changes and modifications are not per-
mitted and release the manufacturer from any
guarantee obligations and liability, e.g. if the
housing is drilled at a point which is not permit-
ted.
• Fan does not satisfy standard DIN 18017-3 for
single air extraction systems. Do not use in
systems in accordance with DIN 18017-3.
• Never operate the fan during the construction
phase. Fan and ducting can become dirty and
damage the fan.
• Use personal protective equipment (protect-
ive clothing, hard hat, protective goggles, etc.)
for your own protection in the event of possible
hazards. Pay attention to the applicable safety
and accident prevention regulations.
• When working at heights, use suitable ladders/
climbing aids and ensure that they are stable.
Ensure that you are standing securely and can-
not lose your balance and that there is no one
under the unit. The applicable accident preven-
tion regulations must be observed. Assembly
areas must be secured against unauthorised
entry, falling objects and falling.
• Switch the fan off immediately if it is damaged,
especially if you notice damage or faults that
endanger persons or property. Prevent further
use until the unit has been completely repaired.
• The motor may still be very hot after the over-
load protection has been triggered or the fan
has been switched off → Risk of burning due to
hot motor. Note the cooling time. This can be
up to 15 minutes, depending on the fan type.
Usually, the fan switches back on automatically
after cooling down.
• Switch off the fan's power supply before carry-
ing out any work on it → Risk of injury due to
unexpected or automatic start-up. The fan may
start up automatically after shutting down in re-
sponse to an overload, clearing of an impeller
blockage or accidental switch-on.
Danger if the relevant regulations for electrical
installations are not observed.
• Before installing the electrics, shut down all
supply circuits, deactivate the mains fuse and
secure it so it cannot be switched back on. At-
tach a warning sign in a clearly visible place.
Be sure to observe the relevant regulations for
electrical installation; e.g. DIN EN 50110-1. In
Germany, particularly observe VDE 0100, with
the corresponding sections.
• A mains isolation device with contact openings
of at least 3 mm at each pole is mandatory.
Only connect unit to a permanent electrical in-
stallation with NYM-O or NYM-J type cables,
2
3x 1.5 mm or 5x 1.5 mm
type).
• The fan may only be operated using the voltage
and frequency shown on the rating plate.
• Make electrical connections according to circuit
diagram.
• Check protective conductor continuity on the
housing.
• The degree of protection stated on the rating
plate is only guaranteed if the unit is installed as
intended and if the connection cable is correctly
guided through the cable grommet(s). The
grommets must tightly seal the cable sheathing.
The terminal box cover must be properly fitted
so that the surrounding seal is tight against the
terminal box all the way around.
3 Intended use
EN fans are used for air extraction, ENR fans for
air extraction or ventilation of offices, business
and commercial premises, restaurants, doctors'
surgeries, etc.
ENR fans are reversible, the air direction can be
reversed with an additional toggle or reversing
switch.
Operation of the fan is only permissible:
• in indoor areas,
• for surface mounting on walls, ceilings or in
sloping roofs,
• with permanent electrical installation, surface-
mounted or flush-mounted.
2
(depending on unit
11