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8.4 Resetting dry running protection
If no flow is detected on the suction side and the pressure on the pressure side drops below
the set value, the flow monitor stops the pressure booster system (lack of water). Depending
on the system design, dry running protection must be reset manually.
Pressure switch and
pressure transmitter
If dry running protection devices are available in the form of pressure switches or pressure
transmitters, the system is reset automatically (self-reset).
Flow monitor
To reset the dry running protection, set at least one pump set to manual mode.
Resetting via manual-0-automatic selector switch
1. Set the manual-0-automatic selector switch to manual for approx. 10 seconds.
Resetting via frequency inverter
ü
The original operating manual of the frequency inverter is on hand.
1. Set the pump set to manual mode for approx. 10 seconds via the frequency inverter’s
control unit. See the original operating manual of the frequency inverter.
Summary of Contents for Hydro-Unit Utility Line F
Page 29: ...29 96 1 2 Fig 12 PE connection 1 Earthing terminal 2 Location of power connection ...
Page 58: ...58 96 ...
Page 92: ...92 96 T Tank 79 Timers 73 W Warnings 9 Warranty claims 7 ...
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