Settings Of Dryer Switches; Compressor Specifications; Reference Conditions; Limitations - Atlas Copco GA55 Instruction Book

Stationary air compressor
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Instruction book
Supply
Frequency
voltage
(V)
440-460
60 Hz - IEC
440-460
60 Hz - CSA/UL
575
60 Hz - IEC
575
60 Hz - CSA/UL
7.4 Settings of dryer switches (on GA Full-feature)
Fan control switch (PSR90)
- Cut-out pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bar(e)
- Switch-on pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bar(e)
Shut-down switch (PSHH90) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bar(e)

7.5 Compressor specifications

7.5.1 Reference conditions

Air inlet pressure (absolute) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bar
Air inlet temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . celsius
Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . %
Working pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bar(e)
On water-cooled units also:
Cooling water inlet temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . celsius

7.5.2 Limitations

Maximum working pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bar(e)
Minimum working pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bar(e)
Maximum air inlet temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . celsius
Minimum air inlet temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . celsius
On water-cooled units also:
Max. cooling water outlet temperature . . . . . . . . . . . . . . . . . . . . . . . . celsius
Max. cooling water inlet pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . bar(e)
2920 1381 02
Circuit breaker
Overload
Q15 11)
relay F21
(A)
(A)
6.9
95
6.9
95
5.5
76
5.5
76
Fuses
Fuses
CSA HRCII-C
(A)
(A)
200
-
-
200
160
-
-
160
16.9
18
29
1
20
0
See nominal values below
20
See maximum values below
4
40
0
50
5
Fuses
UL Class K5
(A)
-
200
-
160
33

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