7
Scroll Enclosure Air Compressors
Multi-Stage Control
As this compressor uses plural air ends, it employs multi-stage control. It can start and stop each air end according to pressure
and air consumption, automatically select the number of air ends in accordance with air consumption and achieve optimum and
uniform operation at all times as well as energy-saving and labor-saving operation.
1.
Multi-stage control
Among air ends which are operating under group control, it stops the air end which has been operating for a longer
time and restarts the air end whose operating time has been shorter, thus resulting in equalization of operating time
of each air end and operation with a min. quantity of air ends in accordance with air consumption and energy-saving
operation by eliminating waste of electricity.
2.
Prevention of long-term operation
When operating time of an air end exceeds the initial setting time, it changes operation from that air end to the one
which has stopped, prevents long-term operation of one air end, lengthens the lifetime of air ends and equalizes the
operating time of air ends.
No 1
No 8
No 7
No 6
No 5
No 4
No 3
No 2
Compressor
Multi-stage control
OFF
ON
100%
0%
Max
pressure
Min
pressure
Pressure
Ratio of
air consumption
Ration of Load
