Atlas Copco — Starting
Operation · compressor
From a Atlas Copco operator's manual covering: GA 10 bar, GA 100 psi, GA 125 psi, GA 13 bar, GA 150 psi, GA 175 psi, GA 7.5-8 bar, GA 75, GA5, GA90. Check it applies to your exact model before use.
Applies to: Atlas Copco GA 75
Before you start
- A start command will be executed (if programmed and activated), even after manually stopping the compressor.
Procedure
- GA Full-feature: switch on the voltage 4 hours before starting to energize the crankcase heater of the refrigerant compressor.
- Switch on the voltage. Check that voltage on LED lights up. The message <<compressor off>> appears.
- Open the air outlet valve (AV).
- Close the condensate drain valve (Dma).
- Press start button I. The compressor starts and automatic operation LED lights up; after 10 seconds the drive motor switches from star to delta and the compressor runs loaded.
- Water-cooled only: regulate the cooling water flow during loaded running to obtain the most suitable temperature at the compressor element outlet, between 2 and 7 degrees celsius above the relevant te
Source: Atlas Copco operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.