Atlas Copco GA90C Instruction Book

2920 1381 02
9
Instruction book
AF Air filter
AR Air receiver/oil separator
AV Air outlet valve
BV Oil cooler by-pass valve
Ca Air cooler
CM Control module
Co Oil cooler
CV Check valve
Daa Automatic condensate drain
outlet
Dma Manual condensate drain valve
DP1 Oil drain plug, air receiver
DP2 Oil drain plug, oil stop valve
DP3 Oil drain plug, check valve
E Compressor element
FC Oil filler plug
FN Fan
Gl Oil level gauge
IV Inlet valve
LP Loading plunger
MTa Condensate trap
M1 Drive motor
M2 Fan motor
OF Oil filters
OS Oil separator element
PDT1 Pressure sensor, oil separator
pressure difference
PT20 Pressure sensor, air outlet
Rf1,2 Restrictors
SV Safety valve
TT11 Temperature sensor,
compressor element outlet
UA Unloader
UV Unloading valve
VI Air filter service indicator
Vp Minimum pressure valve
Vs Oil stop valve
Y1 Loading solenoid valve
1 Oil scavenging flexible
2 Flexible, control or blow-off
air
On Full-feature also:
FN2 Fan, condenser
M1 Refrigerant compressor
M2 Motor, condenser fan
PSHH90 High pressure shut-down
switch
PSR90 Condenser fan control switch
TT90. Sensor, pressure dewpoint
4 Filter
5 Air/air heat exchanger
6 Air/refrigerant heat
exchanger (evaporator)
7 Liquid separator
8 Refrigerant/refrigerant heat
exchanger
9 Condenser
10 Liquid receiver
11 Expansion valve
Fig. 1.6 Flow diagram (typical example of GA Full-feature)
CMS1/2 Switches, compressor control
module
E1 Electronic control module
F1/5 Fuses
F21 Overload relay, drive motor
K21 Line contactor
K22 Star contactor
K23 Delta contactor
Q15 Circuit breaker, fan motor 3)
T1/T2 Transformers
1X1 Terminal strip
On Full-feature also:
F6/7/8 Fuses
K11 Contactor, refrigerant
compressor
K12 Contactor, condenser fan
1X4 Terminal strip
Fig. 1.7 Electric cubicle of 50 Hz compressors (typical example)
K21 CMS1/21X1Q15K22K23
F21
K11
F6/7/8T2
F1/2F3/4/5
K12
T1
1X4
50508F
E1

Atlas Copco GA90C Specifications

General

Brand	Atlas Copco
Model	GA90C
Category	Air Compressor
Language	English