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31
2920 1190 05
Instruction book
Industrial Air Division
7 Principal data
7.1 Readings on display (4-Fig. 7a) 1)
Ref.:
Air outlet pressure
Reading:
Depends on the setpoint (desired net pressure)
Shown:
On main display (Fig. 7b), when:
-
switching on voltage
-
selecting main display with function keys (5)
below Menu and Main
-
keys of module are not used for four minutes
Sensor:
PT20-Figs. 2
Ref.:
Compressor element outlet temperature
Reading:
Approx. 60°C/108°F above cooling air
temperature (cooling water temperature on water-
cooled compressors)
Shown:
When using the function key (5) below More on
the main display (Fig. 7b)
Sensor:
TT11-Fig. 9b
Ref.:
Cooling water outlet temperature (water
cooled compressors)
Reading:
Below 50°C
Shown:
When using the function key (5) below More on
the main display (Fig. 7b)
Sensor:
TT51-Figs. 6
7.2 Settings of safety valve
GA50 (W) VSD
14.5 bar(e)
GA90 (W) VSD
14.5 bar(e)
7.3 Settings of circuit breakers
7.3.1 GA50 (W) VSD
Circuit breaker
Supply
Fre-
Maximum
voltage
quency
setting
Fan motor (Q15-Fig. 8a) . 400 V
50 Hz
4.2 A
7.3.2 GA90 (W) VSD
Circuit breaker
Supply
Fre-
Maximum
voltage
quency
setting
Fan motor (Q15-Fig. 8b)
- Air-cooled compressors . 400 V
50 Hz
10 A
- Water-cooled
compressors . . . . . . . . . . . 400 V
50 Hz
1.2 A
Invertor (Q16-Fig. 8b) . . . . 400 V
50 Hz
Minimum
setting of
circuit
breaker
7.4 Compressor specifications
7.4.1 Reference conditions
Air inlet pressure (absolute) . . . . . . . . . . . . . bar
1
Air inlet temperature . . . . . . . . . . . . . . . . . . °C
20
Relative humidity . . . . . . . . . . . . . . . . . . . . . %
0
For water-cooled compressors also:
Cooling water inlet temperature . . . . . . . . . . °C
20
1) See "User manual for Elektronikon regulator for GA90 VSD
compressors", sections "Modify settings submenu" and "More
function"