Maintenance - SystemAir Thermobox KBR/F 280 Montage- Und Betriebsanleitung

GB
Troubleshooting cont'd
Defective motor winding
Improperly aligned drive motor
Fan does not reach
Control units (if used) such as
nominal speed
frequency converter or
transformer are set incorrectly.
Mechanical blockage
Faulty supply voltage
Faulty connection
Motor does not
rotate
Temperature monitor has
responded.
Insufficient cooling
Electronics/motor
Overloaded motor
overheated
Ambient temperature too high
Note:
For all other damage/defects, please contact Systemair. Defective safety-relevant fans (for Ex and smoke
extraction applications) must be replaced completely.

12.3 Maintenance

Warranty claims can only be made if maintenance work is carried out correctly and written evidence thereof is
provided.
We recommend regular maintenance intervals to ensure continuous fan operation. These maintenance intervals are
specified in the "Activities" table below. In addition, the operator must carry out follow-up activities such as cleaning,
replacing defective components or other corrective measures. For traceability reasons, a maintenance plan must be
created which documents the work carried out. This must be created by the operator. If the operating conditions are
"extreme", the maintenance intervals must be reduced so that maintenance is carried out more frequently. Examples
of extreme operating conditions:
• Kitchen exhaust fans
• Ambient temperature > 40 ºC or < -10 ºC, or temperature fluctuations > 20 K
Table 7 Activities
Activity
Check the fan and its components for visible damage,
corrosion and contamination.
Check the impeller for damage and imbalance.
Check the condensate drain is working correctly.
Clean the fan/ventilation system (see 13 Cleaning, page
18).
Check the screwed connections for damages/defects and
check that they are firmly seated.
Check the fan intake is free from contamination.
Check that the fan and its components are being used
correctly.
Check the current consumption and compare this with the
rated data.
| 002
Troubleshooting/maintenance/repair |
Contact Systemair
Contact Systemair
Correct the settings of the control units.
Remove the blockage.
Check the supply voltage, re-establish the voltage supply.
Disconnect from the power supply, correct the
connection, see circuit diagram.
Allow the motor to cool down, find and resolve the cause
of the fault.
Improve cooling.
Check if the correct fan is used for your application.
Check if the correct fan is used for your application.
Normal operating
conditions
Every six
Annually
months
X
X
X
X
X
X
X
X
Extreme operating
conditions
Every six
Quarterly
months
X
X
X
X
See normal operating
conditions
X
See normal operating
conditions
X
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