8.3 Starting
For the position of the air outlet valve and the drain connections, see sections
Introduction and Condensate system.
Control panel Elektronikon®
Control panel Elektronikon® Graphic
Procedure
1. Open the air outlet valve.
2. Switch on the voltage. Check that voltage on LED (6) lights up.
3. Press start button (1) on the control panel. The compressor starts running and the automatic operation LED
(8) lights up. Ten seconds after starting, the drive motor switches over from star to delta and the compressor
starts running loaded.
4. On water-cooled compressors, the cooling water is used to cool the compressor oil and compressed air.
Regulate the cooling water flow during loaded operation to obtain the most suitable temperature at the
outlet of the compressor element. This temperature is determined by the condensation point of water at
operating conditions (lower temperature limit) and the maximum desirable oil temperature (100 °C / 212
°F) as upper limit. For good practice, regulate the cooling flow to obtain an element outlet temperature
approximately 5° C above the relevant (lower limit) temperature obtained from the figure below. If the
calculated temperature is higher than 100° C, this will lead to more rapid oil deterioration, which will have
an impact on oil service intervals. Consult Atlas Copco for best practices in this case. Also consult Atlas
Copco in case condensate should form in the oil.
For optimal operation, the cooling water outlet temperature must never exceed the value specified in
section Reference conditions and limitations.
Instruction book
2920 7109 60 165
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