10
explosion-proof roof fan
WPA-D-N /Ex
04.06.2019
Fig. No.6
– Placement of the nominal data plates and the impeller rotation arrow
7.
Operational Use
Construction of the device assures reliable function without continuous routine technical super-
vision.
Periodically, it is important to check systematically the mechanical and electrical
connections
,
the state of grounding and also to provide efficient cooling to the motor
.
For incorrect function is considered:
a
/
forwarding the media exceeding the admissible tempe60
C
b
/
conveying aggressive media
c
/
conveying the media of high dustiness or with high pollution particles content,
d
/
use of the fan in areas where the ambient temperature e40
C.
Consequences of incorrect use:
a
/
damage of bearings
b
/
damages caused by corrosion
c
/
loss in balance of the rotating elements
d
/
vibrations
e
/
deformations
f
/
damages caused by friction
Risks which can occur due to improper use
– damages or other defects caused by:
●
burst of the impeller
●
break of the shaft
●
fatigue crack of the material
●
ignition and explosion caused by sparks
In case when any symptoms of incorrect device function (noise increase, vibrations, reduced
flow efficiency) are noticed, the device should be disconnected from the power system, and
thoroughly revised (with reference to the reason of disturbance during the operation).
According to 2014/34/EC Directive, in case of any repair or replacement
of a spare part
– put a notice on an additional plate and in the enclosed documentation
(
a register of repair activities, etc.
).
This is the duty of User!
