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9
18.10.2016
Ex-proof roof fans
WP-
…
-D/Ex
7.
Operational Use
Construction of the device assures a reliable function without continuous technical supervi-
sion. It is important to check systematically the mechanical and electrical connections, the
state of grounding and also to ensure an efficient cooling for the motor.
Incorrect use of the device
:
a
/
forwarding the media of temperature exceeding the admissible temperature (+60
C),
b
/
conveying the aggressive media,
c
/
forwarding the media of high dustiness or with high fraction of pollution particles,
d
/
use of the fan in a place where the ambient temperature is higher then +40
C.
Consequences of the incorrect use
:
–
damage of the bearings,
–
damages caused by corrosion,
–
loss in balance of the rotating elements,
–
vibrations,
–
deformations,
–
damages caused by friction.
Risks which can occur due to improper use
:
–
damages and other defects caused by
burst of the impeller,
break of the shaft,
fatigue crack of the material,
ignition and explosion caused by sparks.
8.
Troubleshooting Guide
Problem
Possible reason
Corrective action
1.
Sudden drop of the
a.
Obstacle objects, pollutants
a.
Clean the ventilation conduit.
intake flow efficiency.
reducing the air flow
got stuck at the inlet fitting piece.
2.
Sudden vibrations
a.
Obstacle objects reducing
a.
Disconnect the fan from
of the fan occur.
the air flow got stuck
the power system,
in the impeller.
and remove the obstacle.
b.
Impeller is defective.
b.
Replace the impeller
with motor for a new.
Содержание WP-10-D/Ex
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