7
04.06.2019
chem-proof Ex roof fan
SPARK-CHEM/Ex
6.1. Guidelines of installing:
a
/
VENTILATION INSTALLATION
–
to which SMART-CHEM/Ex fans
are installed,
should be
designed and carried out
in
accordance
with the being in force valid re-
gulations
and standards,
with reference to
the local explosion hazard.
b
/
ELECTRICAL INSTALLATION
– where SMART-CHEM/Ex fans shall be con-
nected
– ought to be designed and executed according
to
the
being
in force
valid regulations and standards
– with reference to the local explosion hazard.
Any activities referring the connection
to the power supply have to be carried out by an autho-
rised person
with electrical qualifications and according to the valid regulation
and
standards.
It important to provide the whole ventilation system with correctly executed installation to
dissi
-
pate
the
electrostatic charges. All connections between the ventilation ducts must be provided
with electrostatic joints (protective cables). Examine if the metal ducts
are grounded properly.
Additionally, the motor housing must be grounded too. Connect the grounding to the clamp on
the motor housing by means of a protective cable.
The
motor ought
to
be
connected to the power supply system, strictly according to
the
Connec-
tion Diagram located in the inner side of the terminal box cover.
6.2 Safety inspection before the start up
:
a
/
Examine if all the mechanical connections are performed correctly,
b
/
Examine the correctness of the electrical connections, phases sequence,
c
/
Check the correctness of the connection of the motor
and the fan housing with the PE pro-
tective cable.
d
/
The
motor should be protected from
the
short-circuit- overload and overvoltage effects and
additionally it ought to be protected from non-complete phase work and from lightning.
After the start up,
check the impeller rotation sense which should be according to the arrow on
the housing.
CAUTION
:
1
. supply voltage
3 x 400V; 50Hz
2
.
supply voltage
S1
3
.
ingress protection
IP56
4
.
ambient temperature from
-20
up to
+40
C
5
.
insulation class
F
6
. to the motor housing connect a grounding cable
of length 400 mm, ended with terminal
KOI
7
. the systems and devices used in area of explosion
hazard, ought to be constructed according to:
–
guidelines of the
ATEX 2014/34/EC Directive
–
the being in force regulations and standards
ISOLATING
SWITCH
in Ex execution
CAUTION
: Connect the windings according to the data on the nominal plate of the motor and with the
connection diagram placed on the cover of the terminal box of the motor.
Fig. No.4
– Connection Diagram of the fans SPARK-CHEM/Ex