Instruction book
1904 0504 83
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For the location of the air outlet valve and the drain connections, see
sections
Introduction and Condensate system
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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.
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