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User manual
17.2 Protections
Minimum Nominal Maximum
Compressor element outlet temperature 4) . . . . . . . Celsius 9) 110 119
(shut-down warning level)
Compressor element outlet temperature 4) . . . . . . . Celsius 111 120 120
(shut-down level)
For GA30 up to GA90C
Oil separator (pressure difference) . . . . . . . . . . . . . . bar 0 1 5)
Oil separator (delay at signal) 6) . . . . . . . . . . . . . . . sec 0 10 20
For Full-feature with IFD also 11):
Delay at signal 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . sec 0 3 10
Delay at starting 8) . . . . . . . . . . . . . . . . . . . . . . . . . . sec 0 255 255
On water-cooled compressors also:
Cooling water inlet temperature (warning level) . . . Celsius 0 50 99
Cooling water outlet temperature (warning level) . . Celsius 0 60 99
Delay at warning signal 6) . . . . . . . . . . . . . . . . . . . . sec 0 0 255
Delay at start 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . sec 0 0 255
For Full-feature with ICD also:
Minimum dryer vessel pressure when drying
(warning level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bar 0 3.5 4
Delay at signal 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . sec 0 5 10
Maximum dryer vessel pressure when regenerating
(warning level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bar 0.5 0.7 1
Delay at signal 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . sec 0 30 40
Maximum pressure dewpoint (warning level) . . . . . °C -45 -30 0
Delay at signal 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . sec 0 3 10
Delay at starting 8) . . . . . . . . . . . . . . . . . . . . . . . . . . sec 0 0 255
17.3 Service plan
Minimum Nominal Maximum
Service plan A (running hours). . . . . . . . . . . . . . . . . hr 10) 4000 10)
Service plan B (running hours) . . . . . . . . . . . . . . . . hr 10) 4000 10)
Service plan C (running hours) . . . . . . . . . . . . . . . . hr 10) 8000 10)
Footnotes chapter 17
1) Once the compressor is automatically stopped, it will remain stopped for the minimum stop time, whatever happens with the air net pressure. It is
recommended to program this setting at minimum 20 seconds to prevent too-short stopping periods. If a lower setting should be required, consult Atlas
Copco.
2) Is the period after starting which must expire before generating a warning. This setting should be less than the setting for delay at signal.
3) The regulator does not accept illogical settings, e.g. if the unloading pressure is programmed at 7.0 bar(e), the maximum limit for the loading pressure
changes into 6.9 bar(e). The recommended minimum pressure difference between loading and unloading is 0.6 bar.
4) The regulator does not accept illogical settings, e.g. if the warning level is programmed at 95 degrees Celsius, the minimum limit for the shut-down level
changes into 96 degrees Celsius. The recommended difference between the warning level and shut-down level is 10 degrees Celsius.
5) Use Atlas Copco oil separators. The recommended maximum pressure difference is 1 bar.
6) Is the time period during which the warning signal must exist before the warning message appears.
7) In case of LAN control. See related Instruction book, section 3.2. Consult Atlas Copco.
8) Is the time period during which the warning signal is ignored after starting to allow the dryer to reach the dewpoint temperature.
9) Recommended minimum setting: 70 degrees Celsius. For testing the temperature sensor, this setting can be decreased to 50 degrees Celsius. Reset the
setting value after testing.
10) Always consult Atlas Copco in case any timer setting should be changed. The intervals must not exceed the nominal intervals and must coincide
logically. See section 12.
11) Full-feature (FF): with integrated air dryer.
12) See section 1.3.
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