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5.4.1 Wiring Diagram Three-Phase Motor
The wiring diagram for the electrical connection is located in the terminal box or on the
nameplate of the motor.
If the pump is supplied with a motor starter, it is preset at the factory in accordance with
the supplied motor. For other voltage requirements, contact the factory for motor and/or
starter information.
NOTE
See the motor manufacturer’s manual for start-up maintenance of the motor.
NOTICE
Incorrect direction of rotation.
Risk of damage to the vacuum pump!
• Operation in the wrong direction of rotation can damage the vacuum pump in a short
time! Prior to starting-up make sure that the vacuum pump is operated in the right di-
rection.
• Determine the intended direction of rotation from the arrow on the motor.
• Jog the motor briefly.
• Watch the fan of the motor and determine the direction of rotation just before the fan
stops.
If the rotation of the motor must be changed:
• Switch any two of the motor phase wires.
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Commissioning
NOTICE
The vacuum pump is shipped without oil.
Operation without oil will damage the vacuum pump in a short time!
• Prior to commissioning, the vacuum pump must be filled with oil, see
Filling Oil
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CAUTION
During operation the surface of the vacuum pump may reach temperatures of more than
158°F.
Risk of burns!
• Avoid contact with the vacuum pump during and directly after operation.
