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Atlas Copco GA90C Instruction Book

Atlas Copco GA90C
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2920 1381 02
19
Instruction book
Supply Frequency - LC cable MC cable LC cable MC cable
voltage Approval GA Pack GA Pack GA Full-feature GA Full-feature
(V) (mm²/AWG) (mm²/AWG) (mm²/AWG) (mm²/AWG)
220-230 60 - IEC 2x 70 2x 95 2x 95 2x 95
220-230 60 - CSA/UL 2x AWG0 2x AWG4/0 2x AWG0 2x AWG250
380 60 - IEC 2x 35 2x 35 2x 35 2x 50
380 60 - CSA/UL 2x AWG3 2x AWG1 2x AWG3 2x AWG0
440-460 60 - IEC 70 95 95 95
440-460 60 - CSA/UL AWG0 AWG4/0 AWG0 AWG250
575 60 - IEC 50 70 70 70
575 60 - CSA/UL AWG1 AWG2/0 AWG1 AWG3/0
2.4 Electrical connections (Figs. 1.7 and 1.8)
- Provide an isolating switch.
- Check the fuses and the setting of the overload relay. See section 7.
- If terminals 1, 3 and 5 of motor contactors (K21) and (K23) are not bridged, connect power supply cables to terminals 1, 3
and 5 of contactor (K21) and to terminals 1, 3 and 5 of contactor (K23).
- If terminals 1, 3 and 5 of motor contactors (K21) and (K23) are bridged, connect the power supply cables to terminals 1, 3 and
5 of contactor (K21).
- Connect the earth conductor to earth bolt (PE) and the neutral conductor (if provided) to connector (N).
2.5 Pictographs
1 Water outlet
2 Manual condensate drain
3 Water inlet
4 Automatic condensate drain
5 Before connecting compressor
electrically, consult Instruction
book for motor rotation direction
6 Switch off voltage and
depressurize compressor before
repairing
7 Torques for steel (Fe) or brass
(CuZn) bolts
8 Lightly oil gasket of oil filter,
screw it on and tighten by hand
(approx. half a turn)
9 Consult Instruction book before
greasing
10 Switch off voltage before
removing protecting cover inside
electric cubicle
11 Consult Instruction book before
carrying out maintenance
12 Stop compressor before cleaning
coolers
13 Warning: voltage
14 Warning: potential risk of sudden
releasing of spring underneath
cover of unloader during
disassembling, have possible
repair carried out by Atlas Copco
Fig. 2.4 Pictographs (typical examples)

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Atlas Copco GA90C Specifications

General IconGeneral
BrandAtlas Copco
ModelGA90C
CategoryAir Compressor
LanguageEnglish

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