Atlas Copco GA 90 VSD User Manual

8 Maintenance
8.1 Preventive maintenance schedule
Control panel
Control panel
Warning
Before carrying out any maintenance, repair work or adjustments, proceed as
follows:
•
Stop the compressor.
•
Close the air outlet valve and press the test button on top of the electronic
water drain(s) until the air system between the air receiver and outlet valve is
fully depressurised.
•
Press the emergency stop button (10).
•
Switch off the voltage.
•
Depressurise the compressor.
For detailed instructions, see section Problem solving.
The operator must apply all relevant Safety precautions.
Before mechanical maintenance
Close the air outlet valve and press the test button on top of the electronic water drain(s)
until the air system between the air receiver and outlet valve is fully depressurised.
For location of components, see section Condensate system
Before electrical maintenance
Wait for at least 6 minutes before starting maintenance as hazardous high voltage remains
on the condensers of the start and speed regulation unit for 6 minutes after switching off
the voltage.
Instruction book
2920 1634 04 89

Atlas Copco GA 90 VSD Specifications

General

Model	GA 90 VSD
Category	Air Compressor
Type	Rotary Screw Compressor
Drive	Variable Speed Drive
Rated Power	90 kW
Max Working Pressure	13 bar
Cooling System	Air-cooled
Power Supply	400 V / 50 Hz