Troubleshooting/Maintenance/Repair/Co Alarm; Safety Information; Troubleshooting Fan; Alarm And Fault Handling Carbon Monoxide Control Unit - SystemAir IV Smart EC Montage- Und Betriebsanleitung

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Troubleshooting/maintenance/repair/CO alarm

11.1 Safety information

♦ Troubleshooting/maintenance/repair may only be carried out by adequately qualified persons, details see Table 1
Qualifications, page 6.
♦ Wear protective equipment during all work in the vicinity of the fan, details see 2.2 Personal protective equipment,
page 6.
♦ Observe the 5 rules of electrical safety, see 2.3 5 rules of electrical safety, page 6.
♦ Abide by the system-related conditions and requirements of the system manufacturer or plant constructor.
♦ The rotor must be at a standstill.

11.2 Troubleshooting Fan

Table 9 Troubleshooting
Problem Possible causes
Fan does not run Rotor imbalance
smoothly
Soiling on the rotor
Material decomposition on the
rotor due to aggressive material
conveyed
Rotor rotates in wrong direction
Deformation of rotor due to
excessive temperature
Vibrations, oscillations
Air output of fan too Rotor rotates in wrong direction
low
Flow regulators not or only
partly open
Fan does not reach Improperly aligned drive motor
nominal speed
Control units (if used) such as
frequency converter or
transformer are set incorrectly.
Mechanical blockage
Motor does not Faulty supply voltage
rotate
Faulty connection
Temperature monitor has
responded
Electronics/motor Insufficient cooling
overheated
Overloaded motor
Ambient temperature too high
Note:
For all other damage/defects, please contact Systemair. Defective fans must be completely replaced.

11.3 Alarm and fault handling Carbon monoxide control unit

The control unit continuously monitors the sensor's function, as well as the function of the fans. The following sub-
points describe the the meaning of the fault and CO-Alarm display and the way in which they should be responded to.
| 002
Troubleshooting/maintenance/repair/CO alarm |
Remedy
Rebalancing by a specialist company
Clean carefully, rebalance
Contact Systemair
Contact Systemair
Ensure that the temperature does not exceed the certified
value/Install new rotor
Check the installation of the fan
Contact Systemair
Check opening position on site
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.
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