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Atlas Copco GA 90

Atlas Copco GA 90
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“Compressor outlet” 7.5 bar (109 psi)
.
“Automatically loaded”
“Menu” “Unload”
F1 F2 F3
Automatic operation
Normally, the compressor runs in automatic operation, i.e. the electronic regulator loads, unloads, stops and
restarts the compressor automatically. LED (8) is then lit.
Manually unloading
Press “Unload” key (F3), LED (8) goes out. The message “Manually Unloaded” appears on the display. The
compressor remains running unloaded unless it is loaded again manually.
Manually loading
Press “Load” key (F3), LED (8) lights up. The command “Load” does not force the compressor into loaded
condition, but it will switch the compressor to automatic operation again; the compressor will be loaded if
the air net pressure drops below the programmed level.
5.7 Stopping
Important
After pressing stop button (9), the compressor will run unloaded for 30 seconds. The
compressor stops after this period. A start command during this period is ignored.
After stopping, the compressor is prevented from restarting within a programmable time
(20 seconds). A start command given during this minimum stop time will be memorised;
the automatic operation LED lights up. The compressor will start when the minimum stop
time has elapsed.
Instruction book
2920 1475 06 87

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