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Unit 0
Operation
of 1 unit
Unit 0
Operation with efficient Hz
Efficient
operating
condition
Unit 0
The maximum
Pressure
capacity
control
condition
Efficient
operating
condition
NOTE
• The efficiency control is suited to the site that has both an operating section with the
low load and a focused operating time.
• When all units operate with the optimum efficiency, they control the pressure of their
compressors in a range between higher than efficient Hz and lower than full load Hz
separately.
– Efficient Hz means the best efficient Hz of inverter.
Unit 1
Unit 2
Unit 1
Unit 2
Pressure
control
Unit 1
Unit 2
Pressure
Pressure
control
control
Unit 3
Unit 3
Off
Unit 3
Pressure
control
English
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