12
Fan chamber
WPA-BOX-14 13.10.2016
7.
Operational Use
The construction do not require any additional maintenance after the start-up. If the place of
operational use is changed
– repeat the steps as mentioned in Section 6
,
according to the in-
stalling and adapting the ventilation system to the new conditions.
In case when any defective function of the unit occurs (e.g. improper noises or the outlook of
the device) follow steps as in Section 8.
8.
Troubleshooting Guide
Table No.6
Problem
Possible reason
Corrective action
1
.
Sudden and significant
Pollutants, foreign objects (being Remove the pollutants;
drop in intake volume flow.
obstacle do the air flow) have
clean the ventilation conduits.
deposited at the inlet grill.
2
.
Sudden vibrations of the fan Obstacle objects reducing
Disconnect the fan from
are occurring.
the air flow got stack at the
the power supply system,
impeller.
and remove the obstacle.
The impeller is defective.
Replace the impeller with
motor for a new one.
3
.
Noisy work of the fan
Incorrect impeller rotation sense. Change the impeller rotation
along with small volume flow.
sense by changing the phase
connection sequence
9.
Maintenance
In the aspect of operational use, the fan construction guarantees its efficient function without
continuous routing
everyday
technical supervision. Nevertheless, to obtain proper function of
the device
and to follow the safety rules
,
manufacturer suggests execution of technical re-
visions on regular basis
. During the inspection check the function
of the fan
and the techni-
cal state of its elements.
All the activity connected with
power supply ought to be carried out by
an authorized person with testified electrical qualifications. The appliance ought to be
disconnected from the power supply system during that time.
(
the exemption from this are
activities
carried out
on the running fan, under strict
obser-
ving the Occupational and Health Safety rules
– e.g. vibration measurement
).
Before the maintenance on the fan, necessarily disconnect it from the power supply system
and wait until the impeller stops its rotations.
Within the scope of inspection execute following activities
:
●
check and tighten the mechanical and electrical connections,
●
examine the mountings of the motor and the fan, important is that the clearance between
the inlet and the impeller is even within the whole circumference.
●
remove the impurities accumulated inside the fan, eventually clean it from pollutants
originating from the conveyed medium.
During the maintenance activities follow strictly the rules of Occupational Health and Safety,
in order not to cause hazard to workers / people in the vicinity.
