COMMISSIONING ENGLISH Translation of the Original
30
454522.68.07-01-E
27.06.2012
7.2 Initial Start-Up of the Pump
Danger!
• Always disconnect the power supply before working on the P030 Chiller.
• All control switches, motor protecting switches and automatic circuit breakers
must be placed to the "0" position!
The pump motor is equipped with a rotation direction sensor whose position can be changed.
Notice!
• A functional check of the rotation direction sensor should be carried out
before the initial start-up of the pump motor
whenever the position of the rotation direction sensor has been changed.
The functional check can be carried out by moving the rotation direction sensor, e.g. with your
finger.
To determine the direction of rotation of the pump motor, proceed as follows:
− Complete the procedure "flushing, filling and venting" as described in Chapter 7.1.2.
− Establish the electrical connections in accordance with Chapters 6.2 and 6.3.
− Switch on the pump.
− Observe the small display window in the rotation direction sensor.
The rotation direction is correct if a black area appears in the window, no further activities are
required.
In the event that a white area appears in the window, the following steps must be performed:
− Disconnect the P030 Chiller from the power supply, place all switches and automatic circuit
breakers to the "0" position.
− Reverse any two of the three electrical leads (phases).
− Re-check the rotation direction of the pump motor, as described above.
7.3 Refrigeration Circuit
After the activities on the water circuit and the pump have been completed, place the motor
protecting switches of the compressors to the -1- position (see circuit diagram in the Appendix).
Clear all pending fault messages at the control and operating unit. The P030 Chiller is ready for
operation and the control and operating unit takes over the control of the water outlet temperature.
Notice!
• Check the setpoint adjustment and change the setting, if necessary.
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