5 Operation
5.1 Initial start-up
Safety
Warning: The operator must apply all relevant safety precautions.
Warning: The maximum recommended motor starting frequency is 20 starts per hour. In
order to keep the number of starts at an acceptable level, the compressor must be connected
to an air receiver with a suitable size.
Initial start-up
1. Remove the red painted transport bracket.
2. Close the air outlet valve (AV). See section Introduction .
3. Check the settings of the overload relay (F21). See section Settings of overload relay and
fuses.
Check the drive motor connections. Connect the compressor to the electricity net.
4. Close the condensate drain valve(s). See sections Introduction and Flow diagram for their
location.
5. Switch on the voltage. Press the start button on the controller and immediately press the stop
button.
On 3-phase units, check the rotation direction of the drive motor. For this purpose, a sheet with
start-up instructions is fitted to the outlet grating. When the rotation direction is correct, the
paper will be blown upwards. If the direction is wrong, stop the compressor immediately and
reverse two incoming electric lines.
Instruction book
58 2920 7219 10
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