Atlas Copco GA 90

Cooling water temperature, GA90 up to GA250 and GA315 60
Hz and GR compressors
˚C Below 50
Cooling water temperature, GA90 up to GA250 and GA315 60
Hz and GR compressors
˚F Below 122
Pressure dew-point ˚C Approx. 3
Pressure dew-point ˚F Approx. 37
Pressure drop over DD filter bar Below 0.35
Pressure drop over DD filter psi Below 5
9.2 Reference conditions
Reference conditions
Absolute inlet pressure bar(a) 1
Absolute inlet pressure psi 14.5
Relative air humidity % 0
Air inlet temperature ˚C 20
Air inlet temperature ˚F 68
Nominal working pressure See Compressor data
Cooling water inlet temperature ˚C 20
Cooling water inlet temperature ˚F 68
9.3 Limits
Limits
Maximum air inlet/ambient temperature ˚C 40
Maximum air inlet/ambient temperature ˚F 104
Minimum air inlet/ambient temperature ˚C 0
Minimum air inletambient temperature ˚F 32
Maximum cooling air temperature ˚C 40
Maximum cooling air temperature ˚F 104
Minimum cooling air temperature ˚C 0
Minimum cooling air temperature ˚F 32
Maximum working pressure See section Compressor
data
Maximum cooling water inlet temperature ˚C 40
Maximum cooling water inlet temperature ˚F 104
Maximum cooling water outlet temperature (open systems) ˚C 50
Maximum cooling water outlet temperature (open systems) ˚F 122
Maximum cooling water outlet temperature (recirculating
systems)
˚C 60
Instruction book
112 2920 1475 06