Now that we’ve covered some of the applications that benefit from VFD operation, let’s take a look at a few things you need to be aware of during the installation process.įirst of all, you need to size the system properly. By doing so, you can extract the exact amount of water the well is capable of giving, ensuring that the well isn’t damaged by overpumping. Here, the water pressure constantly changes in order to achieve the variations in the water columns.įinally, regulating your installation allows you to utilise the aquifer in the most efficient way possible. For instance, if your consumption is higher in the summer than in the winter, you can easily regulate the pump speed according to the required demand.Īnother application in which you need a fluctuating pump output is dancing fountains. In water supply applications, there is often a varying demand over the course of a day or a year. This is achieved by varying the pump flow to the heat exchanger, thereby obtaining the optimal flow through the heat exchanger. Here, the typical aim is to reduce the quantity of stagnant water in pressurised reservoir tanks as well as keep a constant water pressure, independent of varying water demands and well conditions.Īnother VFD-friendly application is geothermal wells, in which there is a need of providing constant temperature to buildings. VFD operation can also be used in domestic water supply applications, in which tap water is pumped directly from the well to the tap. Thanks to a VFD, this can easily be done. In mines or construction sites, there is often a need to lower groundwater and keep it at a constant level during, for instance, the construction of buildings, roads and tunnels, or ensuring that mines do not flood. Regardless of whether you need to keep a pump parameter constant by adjusting the pump speed, or adapt to a varying pump demand over time, VFD operation brings benefits aplenty. Generally speaking, the main advantage of using a variable frequency drive in submersible pumps is the ability it gives you to regulate your installation. We will also introduce you to the benefits of output filters. In this module, we will present a few examples of applications in which it is particularly relevant to use a VFD. Boosting from tanks: Increases water pressure from roof tanks, break tanks and ground tanks, including rainwater tanks.Variable frequency drives can be used with submersible motors in a number of installations and applications.SCALA2 is the perfect choice for residential buildings with up to 3 floors and 8 taps. Long lifetime: Quality-tested to perfection, maintenance-free.Reliable operation: Dry-running protection, anti-cycling.Easy to operate: User-friendly control panel.Easy installation: Compact, all-in-one solution, plug-and-pump.Easy selection: One variant for all domestic boosting needs.Low noise: As quiet as a modern dishwasher (47 dB(A) in typical use).
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