Service Settings; Function; Dewpoint Temperature - Atlas Copco GA55 User Manual

User manual
Oil filter lifetime (running hours) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . hr
Oil lifetime (running hours) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . hr
Air filter (running hours) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . hr
Oil separator (running hours) for GA5 up to -10 . . . . . . . . . . . . . . . . hr
Oil separator (running hours) for GA11 up to -90C . . . . . . . . . . . . . . hr
Oil separator (pressure difference) for GA55 up to -90C . . . . . . . . . bar
Oil separator (delay at signal) for GA55 up to -90C 6) . . . . . . . . . . sec
Footnotes chapter 18
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) In automatic operation, the compressor will not be stopped by the regulator until a standstill period of at least the sum of the minimum
stop time and required stop period is expected. However, if the decrease in air net pressure should require a new start of the compressor,
the regulator will start the compressor after the minimum stop time.
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 filters. This interval is valid when using the recommended Atlas Copco Roto-injectfluid.
6) Is the time period during which the warning signal must exist before the warning message appears.
7) This interval is valid when using the recommended Atlas Copco Roto-injectfluid.
8) The recommended change interval is 8000 running hours or if exceeding 1 bar pressure drop over separator.
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) Is the period during which the start conditions are checked.
11) This is the period during which the signal must exist before the compressor is shut down. It is strongly recommended to program this time
at 0 seconds. If it should be required to program this setting at another value (e.g. to deal with transient high temperatures when using an
energy recovery system), consult Atlas Copco.
12) Is only accessible if the automatic restart is activated. The power recovery time (the period within which the voltage must be restored
to have an automatic restart) can be set between 1 and 254 seconds or to symbol 00!. If the power recovery time is set to 00!, the
compressor will always restart after a voltage failure, no matter how long it takes to restore the voltage. To activate the automatic
restart function, consult Atlas Copco.
13) Full-feature version is the Pack version with integrated air dryer.
14) Is the time period during which the warning signal is ignored after starting to allow the dryer to reach the dewpoint temperature.
15) Is the period after starting which must expire before generating a warning. This setting should be less than the setting for delay at signal.
2920 1207 05
Minimum Nominal
0 4000
0 4000
0 4000
0 4000
0 8000
0 1
0 10
Maximum
5)
7)
8)
20
25