Atlas Copco ga55+ Instruction Book page 113

Instruction book
Step
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9096 3313 00
Control panel Elektronikon Graphic
Action
Switch on the voltage. Check that voltage on LED (6) lights up.
Open the air outlet valve.
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.
On water-cooled compressors, regulate the cooling water flow during loaded running
to obtain the most suitable temperature at the outlet of the compressor element, i.e.
o o
between 2 C and 7 C above the relevant temperature in the figure below. For
optimum operation, the cooling water outlet temperature must never exceed the valve
specified in section Compressor data. Consult Atlas Copco if condensate should form
during frequent unloading periods.
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