Troubleshooting/Maintenance/Repair; Safety Information; Troubleshooting Fan - SystemAir IV Smart CA Instrucciones De Instalación Y Funcionamiento

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Troubleshooting/maintenance/repair

11.1

Safety information

◊ Troubleshooting/maintenance/repair may only be carried out by adequately qualified persons, details see Table 1 Qualifications,
page 5.
◊ Wear protective equipment during all work in the vicinity of the fan, details see 2.2 Personal protective equipment, page 5.
◊ Observe the 5 rules of electrical safety, see 2.3 5 rules of electrical safety, page 5.
◊ 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 2 Troubleshooting
Problem
Fan does not run smoothly
Air output of fan too low
Fan does not reach nominal speed
Motor does not rotate
Electronics / motor overheated
Note:
i
For all other damages/defects, please contact Systemair. Defective fans must be completely replaced.
152020
Possible causes
Rotor imbalance
Soiling on the rotor
Material decomposition on the
rotor due to aggressive material
conveyed
Rotor rotates in wrong direction Contact Systemair
Deformation of rotor due to
excessive temperature
Vibrations, oscillations
Rotor rotates in wrong direction Contact Systemair
Flow regulators not or only
partly open
Improperly aligned drive motor
Control units (if used) such as
frequency converter or
transformer are set incorrectly
Mechanical blockage
Faulty supply voltage
Faulty connection
Temperature monitor has
responded
Insufficient cooling
Overloaded motor
Ambient temperature too high
Troubleshooting/maintenance/repair
Remedy
Rebalancing by a specialist
Clean carefully, rebalance
Contact Systemair
Ensure that the temperature does not exceed the certified
value / Install new rotor
Check the installation of the fan
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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