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● Identification in accordance with Directive at least
II (2) G.
The motor protection switch must be wired in
accordance with wiring diagram Fig. D. The motor
protection switch should be set to the nominal motor
current (not I
).
max
Prescribed setting/tripping values for motor protecti-
on switch, see rating plate.
The switch must trip in the event of a short-circuit.
Once all causes of faults have been eliminated, the
connected motor must not start up again automati-
cally. It may only be switched on again manually
(switch-on inhibit).
7 Duties of the installer and the operating
company
The fan may only be operated at permissible ambi-
ent and airstream temperatures of -20 to +50 °C and
only if fully mounted.
The fan should be regularly checked and maintained
by an electrician trained in explosion protection
Chapter 19.
Cleaning and maintenance intervals should be
determined by the operating company in accor-
dance with EN 60079-17 – frequency depends on
ambient conditions and anticipated limitations.
Shorten the maintenance intervals in the event
of dust or a corrosive atmosphere.
Additional safety requirements should be
observed during mounting and operation, e.g. in
accordance with
● EU Directive 1999/92/EC, ATEX 137: implemen-
ted in Germany with the Ordinance on Industrial
Safety and Health.
● EN 60079-14: Design, selection and erection of
electrical installations.
● the national accident prevention requirements.
8 Safety instructions for users
DANGER
!
Explosion hazard due to spark formation if
foreign bodies are inserted into the unit. Do not
insert any objects in the unit.
CAUTION
!
Danger of injury due to rotating impeller and
suction. Hair, clothing, jewellery etc. may be
pulled into the fan if you get too close to it.
During operation always keep far enough away to
prevent this from happening.
CAUTION
!
Risks for people (including children) with
reduced physical, sensory or mental capabili-
ties or a lack of knowledge. The fan may not be
used or cleaned by children or people with reduced
capabilities.
CAUTION
!
Hot motor surfaces may result in skin burns if
touched. Do not touch hot motor surfaces. Always
wait until the motor has cooled down.
9 Switching unit on / off
The fan is switched on or off with an optional switch.
The fan is designed for continuous operation (S1).
Frequently switching on/off may result in improper
heating and should be avoided.
6
10 Reversing mode
Fan not suitable for reversing mode.
11 Action to take in the event of a fault
Check whether the motor protection switch has
responded. Unplug the fan from the mains in the
event of operational disturbances. Before switching
on again, have trained specialists perform trou-
bleshooting and remedy faults found. This applies
in particular after the motor protection switch has
tripped. If faults reoccur, send the unit to our factory
for repairs.
Mounting of unit by electrician
trained in explosion protection
12 Safety instructions
Under no circumstances use the unit for purpos-
es other than those for which it was intended
Chapter 5.
DANGER
!
Danger from electric shock. Whenever work-
!
ing on the fan, release the supply current circuits,
secure to prevent them from switching on again
and ensure the unit is de-energised. Attach warning
sign in clearly visible place. Ensure that there is no
explosive atmosphere.
Explosion hazard. Degree of protection is
!
not ensured if the cables are incorrectly insert-
ed into the terminal box.
Ensure degree of protection by correctly inserting
the cables into the terminal box.
Explosion hazard when operating with unit
!
not fully mounted and if air inlet/outlet is not
correctly protected.
The fan may only be operated if the unit is fully
mounted and with the protective devices
(EN 60529) for the air channel fitted. Ensure that
foreign bodies cannot be sucked into the unit and
ducts.
Explosion hazard/danger of injury from an
!
incorrectly mounted fan or a falling fan.
Only mount on walls/ceilings with sufficient
load-bearing capacity and sufficiently dimensioned
mounting material. Mounting material is to be
supplied by the customer. During installation, do
not allow people to stand under the installation
location.
Explosion hazard due to incorrect adjust-
!
ment.
The rotating fan parts were adjusted in the man-
ufacturer's factory. The unit must not therefore be
taken apart. The temporary removal of the terminal
box cover during unit installation is the only excep-
tion to this restriction.
NOTICE: Damage to the unit
Loss of IP degree of protection if fan is mount-
ed in damp rooms with air being transported
upwards. Do not mount the fan in damp rooms
with air being transported upwards.
13 Transport, storage
DANGER
!
Danger from unit falling if transporting with
unauthorised transport equipment.
Use lifting and transport equipment suitable and
approved for the fan and transport weight.
Do not stand under a suspended load.
Note weight and centre of gravity (centre).
Observe the maximum permitted loading capacity
for lifting gear and means of transport. For total
weight rating plate on fan.
During transport do not place load on sensitive
components, such as impeller or terminal box.
Fit transport equipment correctly.
CAUTION
!
Risk of cuts from metal housing plates
with sharp edges. Wear personal protec-
tive equipment (cut-resistant gloves) for
installation.
● Only ship unit in original packaging.
● Store unit in dry location (-25 to +55 °C).
14 Technical data
Rating plate on unit.
Nominal size, depending
180, 200 or 250
on type
Degree of protection of
IP54
motor
Air volume
Rating plate
Sound power level
Fig. A/rating plate:
Vibration values
BV-3
(ISO 14694)
Weight
Rating plate
15 Ambient/operating conditions
● Permitted ambient and airstream temperature:
-20 °C < Ta < +50 °C. For special versions
rating plate.
● Division of maximum surface temperature into
classes. Temperature class T... rating plate.
Temperature class
T1
T2
Maximum surface
450 300 200 135 100
temperature [°C]
16 Mounting
During mounting, note the applicable installation
requirements especially EU Directive 1999/92/EC,
EN 60079-14 and VDE 0100 (in Germany).
Mounting instructions
NOTICE: Damage to the unit
Units with pre-installed line feedthrough to the
terminal box may be damaged if the connec-
tion line is pulled or the unit is lifted using the
line. Do not pull connection lines or lift the unit
using the lines.
RRK .. Ex - fan:
● for permanent installation in ducts with ventila-
tion duct or flexible duct suited to the unit type
(nominal size).
● for surface mounting on duct, wall, foot with
sufficient load-bearing capacity.
● Any installation position, do not install in
damp rooms with air being transported
upwards.
● for ventilation or air extraction, depending on the
installation position.
● Unit connection sockets on both sides for direct
installation in ventilation ducts.
T3
T4
T5
T6
85
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