Atlas Copco GA 90 Instruction Book page 82

Step
1
2
3
4
Water circuit
Step
1
2
3
Integrated air dryer
Step
1
2
80
Action
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.
Check the wires on transformers (T1/T2) for correct connection.
Check the setting of the circuit breakers
Check that overload relay (F21) is set for automatic resetting and check its setting
the section Setting of overload relay and
Action
Check that the cooling water drain valves (customer's installation) in the inlet and outlet
lines are closed.
Check that the water shut-off valves (customer's installation) are open.
Open the water regulating valve and check for water flow.
Action
Check that by-pass valve (2) is closed.
Check that valves (1 and 3) are open.
(see the section Settings of circuit
fuses).
Instruction book
breakers).
(see
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