Description
Therefore, the amount of air needed would give the system the input to run the pump units one by one to cater for the air quantity needed. When a limited amount of air is needed, the LP CONTROL DEVICE starts a single pump unit, on rotation, this way all pump units will have an equal working time. If more air is needed and a single pump unit is not enough, then the LPCD will start the second electric motor and in case more power is needed to reach the pressure needed, it will also run the third electric motor. This kind of working sequence of the pump units is an important energy saver since it avoids frequent and high peaks of electrical consumption. In manual mode, during maintenance operations on one or more pump units, the user selects which pump unit to run and which one/s to keep turned off.






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