3. Depending on the pump type, use PVC or metallic hoses with flange connections from the
4. Option: In case of higher gas throughputs, mount an exhaust line.
5. Route the piping downwards from the vacuum pump, to prevent condensate return.
6. Support or suspend the piping to the vacuum pump so that no piping system forces act on the
vacuum pump.
5.4 Connecting to the mains power supply
DANGER
Danger to life from electric shock
Touching exposed and voltage-bearing elements causes an electric shock. Improper connection of
the mains supply leads to the risk of touchable live housing parts. There is a risk to life.
► Before the installation, check that the connection leads are voltage-free.
► Make sure that electrical installations are only carried out by qualified electricians.
► Provide adequate grounding for the device.
► After connection work, carry out an earthed conductor check.
NOTICE
Risk of property damage from excess voltage
Incorrect or excessive mains voltage will destroy the motor.
► Always observe the motor rating plate specifications.
► Route the mains connection in accordance with locally applicable provisions.
► Always provide a suitable mains fuse to protect the motor and supply cable in the event of a fault.
NOTICE
Property damage from the voltage range being set incorrectly
Recommissioning after longer downtimes of the vacuum pump or after changing the oil requires the
current settings to be checked.
► Before switching the vacuum pump on each time, check the currently set voltage range.
► Make changes to the voltage range only after the vacuum pump has been disconnected from the
mains.
115
230
1
1
5
230
Fig. 6:
Voltage selector switch
Switch position:
"115"
"230"
Voltage range
100 – 115 V, 50/60 Hz
120 V, 60 Hz
200 – 230 V, 50/60 Hz
Tbl. 5:
Permissible voltage ranges for reversible single phase motor
Installation
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