Atlas Copco GA 75+ - Dryer Switches; Reference Conditions and Limitations

Frequency
(Hz)
Voltage (V) GA 55
Q15 (A)
GA 55 P
Q15 (A)
GA 75
Q15 (A)
GA 75 P
Q15 (A)
GA 90
Q15 (A)
60 230 9.1 9.1 9.1 9.1 14.9
60 380 5.3 5.3 5.3 5.3 8.0
60 460 5.1 5.1 5.1 5.1 7.3
11.4 Dryer switches
General
The regulating and safety devices are factory-adjusted to give optimum performance of the dryer.
Do not alter the setting of any of the devices.
11.5 Reference conditions and limitations
Reference conditions
Air inlet pressure (absolute) bar 1
Air inlet pressure (absolute) psi 14.5
Air inlet temperature ˚C 20
Air inlet temperature ˚F 68
Relative humidity % 0
Working pressure See section Compressor data.
On water-cooled units also:
Cooling water inlet temperature ˚C 20
Cooling water inlet temperature ˚F 68
Limits
Maximum working pressure See section Compressor data.
Minimum working pressure bar(e) 4
Minimum working pressure psig 58
Maximum air inlet temperature ˚C 46
Maximum air inlet temperature ˚F 115
Minimum ambient temperature ˚C 0
Minimum ambient temperature ˚F 32
Instruction book
2920 7109 60 193