Hydro 2000

Hydraulic functionsHydro 2000Overview of functionsGrundfosHydro 2000 MSStart/stopGrundfosHydro 2000 MSHGrundfosHydro 2000 MFVariable speedGrundfosHydro 2000 MFHPFU 2000PFU 2000 PFU 2000 PFU 2000TM00 2674 0294TM00 2678 0294TM00 2680 0294TM00 2677 0294One pump in operation. One half-size pump in operation. One pump in operation viafrequency converter.One half-size pump in operation viafrequency converter.HHstopHsetQTM00 2749 0294HHstopHsetQTM00 2773 0294HHsetQTM00 2757 0294HHsetQTM00 2781 0294Three pumps in operation.One full-size pump and one half-sizepump in operation.One pump in operation viafrequency converter and two mainsoperatedpumps.One half-size pump in operation viafrequency converter and one mainsoperatedfull-size pump (start/stop).HHHHHstopHsetQTM00 2751 0294HstopHsetQTM00 2775 0294HsetQTM00 2759 0294HsetQTM00 2783 0294• Maintains an almost constantpressure by cutting the pumps inor out, as required.• Pump changeover is automaticand depends on load, time andfault.• The cut-out pressure (H stop ) cannotbe set, but is calculated automatically.• Maintains an almost constantpressure by cutting the half-sizeand full-size pumps in or out, asrequired.• The half-size pump is alwaysstarted first and cut out when afull-size pump is cut in.• Pump changeover between thefull-size pumps is automatic anddepends on load, time and fault.• The cut-out pressure (H stop ) cannotbe set, but is calculated automatically.• Maintains a constant pressurethrough continuously variableadjustment of the speed of onepump. The other pumps are cutin or out on mains operation, asrequired.• The frequency-converter-controlledpump is always startedfirst.• Pump changeover is automaticand depends on load, time andfault, and all pumps are frequency-converter-controlledinrotation.• Furthermore, all pumps arecontrolled alternately by thefrequency converter.• Maintains a constant pressurethrough continuously variableadjustment of the speed of onehalf-size pump. The other pumpsare mains-operated.• The frequency-converter-controlledhalf-size pump is alwaysstarted first.• Pump changeover is automaticand depends on load, time andfault.8