8 Servicing/Maintenance
48 of 92
KSB Delta Macro
1983.843/04-EN
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. 10seconds.
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. 10seconds via the frequency
inverter’s control unit. See the original operating manual of the frequency
inverter.
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