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Atlas Copco GA 90

Atlas Copco GA 90
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Step Action
1 Check that the electrical connections correspond to the local codes.The installation must
be earthed and protected by fuses in all phases. An isolating switch must be fitted.
2 Check the wires on transformers (T1/T2) for correct connection.
3 Check the setting of the circuit breakers (see the section Settings of circuit breakers).
4 Check that overload relay (F21) is set for automatic resetting and check its setting (see
the section Setting of overload relay and fuses).
Water circuit
Step Action
1 Check that the cooling water drain valves (customer’s installation) in the inlet and outlet
lines are closed.
2 Check that the water shut-off valves (customer’s installation) are open.
3 Open the water regulating valve and check for water flow.
Integrated air dryer
Step Action
1 Check that by-pass valve (2) is closed.
2 Check that valves (1 and 3) are open.
Instruction book
80 2920 1475 06

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