Maintenance/Repair; Replacing The Bearings; High Voltage Test - SystemAir AxZent Betriebsanleitung

11.6

Maintenance/repair

11.6.1

Replacing the bearings

By using ball bearings with "life-long lubrication", the fan is largely maintenance free. The bearings must be replaced after the lubri-
cant service life has expired (approx. 30,000 to 40,000 h in standard applications).
Pay attention to unusual noises from the bearings.

WARNING
Danger from overheating!
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When changing the bearings, only use original Systemair bearings with special lubrication.
11.6.2 Damage
Please contact the manufacturer's customer service department in the event of any kind of damage, e.g. to the windings.

WARNING
Danger from defective fans!
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Replace any defective fans completely.
Repairs may only be done on the manufacturer's premises and by the manufacturer.
You can find the address on the back of these operating instructions.

11.6.3 High voltage test

WARNING
Danger from high voltage!
The integrated EMC fi lter contains Y capacitors. Applying an AC test voltage will exceed the trigger current.
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Check the device using DC voltage when performing the legally mandated high-voltage test.
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Use a voltage that corresponds with the peak value of the AC voltage required in the standard.
Troubleshooting/maintenance/repair
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