Subject to changes in line with technical progress!
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Service and maintenance
7
Service and maintenance
7.1
Safety
WARNING
Risk of fatal electric shock.
There is a risk of a fatal electric shock if live terminals or connections are touched, even when the
device is switched off.
Switch off the device at the device main switch.
Disconnect the mains plug.
Wait at least five minutes before starting maintenance and repair work. Only then open
the rear housing cover.
Wear your PPE (safety shoes, cut-proof gloves).
WARNING
Risk of injury.
Disconnect the mains plug before starting any maintenance or repair work on the device.
Protect the device against unauthorised restarting.
Observe the applicable safety rules.
Have installation, commissioning, maintenance and repair work carried out only by qual-
ified specialist personnel!
Make sure that all safety devices installed at the factory are functional before switching
the device on again.
WARNING
Risk of injuries from the run-on of the fan.
The rear housing cover is firmly screwed on and may only by opened by qualified spe
-
cialist personnel.
The rear housing cover may only be opened when the fan has been switched off and has
come to a standstill.
Observe the run-on time of the fan. Wait at least three minutes for the fan impeller to
come to a standstill before opening the service cover and the cover with control panel.
WARNING
Health hazards when removing the filter elements.
Wear your PPE (FFP2 dust mask) when removing the filters.
Use further protective equipment according to the work to be carried out (safety shoes,
gloves).
Avoid contact with the dust.
