Zehnder Pumpen ZP SPEEDCONTROL COMFORT, Руководство по эксплуатации

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ZP SPEEDCONTROL COMFORT en English
4 Product description
The ZP SPEEDCONTROL COMFORT contains an electronic control device with a
frequency converter. In automatic mode, this enables independently of the respective
flow rate, to keep the pressure within the plant constant at a target pressure that had been
set before. The power consumption of the pump is thereby clearly minimised.
The ZP SPEEDCONTROL COMFORT switches on the pump once the measured plant
pressure (P-LINE) falls below the set target pressure (P-SET) by more than the set differential
pressure (P-DIFFERENTIAL PRESSURE). The control then regulates the speed of the
pump in such a way that the plant pressure (P-LINE) keeps being as constant as possible.
Once the plant pressure (P-LINE) has reached the set target pressure (P-SET) and the
control does not recognise any flow rate, the ZP SPEEDCONTROL COMFORT will stop
the pump after a time period (TIMER STOP) that was set before.
The ZP SPEEDCONTROL COMFORT protects the pump against:
• Dry-running
• Overcurrent
• too high water temperature
• Frost
• Short circuit
• Overvoltage / undervoltage
• ART function (Automatic Reset Test)
Should the device be at standstill, because the protection system against
dry operation has been set in motion, the ART function will try with the pre-
programmed frequency to switch the pressure booster back on again in order to
restore the water supply.
• AIS function (Anti-ice System) - integrated temperature sensor
Below 5°C, the control will automatically switch the pump to frost protection mode
in order to prevent freezing inside the pump.