Constant pressure water supply is an indispensable part of national production and daily life. Traditional water supply methods require large land areas, are prone to water pollution, and involve significant infrastructure investment. Their main drawback is the inability to maintain constant water pressure, leading to malfunctions in some equipment. This is where variable frequency drive (VFD) technology comes in. Backpack-mounted VFD constant pressure water supply systems offer a cost advantage over traditional frame-mounted VFD units. These units integrate the VFD, check valve, pressure tank, and sensors into a single unit, enabling automatic variable frequency pressure stabilization and providing users with a comfortable water experience. They are widely used in building water supply, secondary pressurization, residential communities and villas, industrial pharmaceuticals, chemical plants, public hospitals, schools, and other small-scale water pump systems.
E-Neng EDS310 series frequency converters have been perfectly matched with water pumps from various well-known brands to form a backpack variable frequency constant pressure water supply system. They have been successfully applied in residential communities, villas, construction sites and other places, making the water supply system intelligent, precise, energy-saving and consumption-reducing, and deeply trusted by users.
System Configuration
Each backpack-type constant pressure water supply system uses one EDS310 frequency converter. The EDS310 comes with a movable mounting base, which can be used with different brands of water pumps and pressure tanks of different specifications for backpack installation. Alternatively, the frequency converter can be installed separately in the distribution box according to user needs. Users can realize various functional requirements and operating modes by operating the frequency converter panel. At least 2 and up to 5 EDS310 units can be connected in a network for water supply.
Inverter wiring diagram
Inverter parameter settings
Application advantages
The EDS310 features an integrated backpack design that is simple and compact, seamlessly integrating with the water pump and saving on wiring and control cabinet costs; with an IP54 protection rating, it can be used with confidence in harsh environments such as humid conditions.
It comes with a movable mounting base, which can be used with water pumps of various brands and pressure tanks of different sizes, eliminating the hassle of installation.
The EDS310 enables precise and intelligent water supply systems, reducing energy consumption. It features excellent software algorithms, producing stable output waveforms and low noise, ensuring quiet pump operation. Deeply optimized PID water supply control provides rapid pressure stabilization, eliminating overpressure during startup and completely resolving issues such as fluctuating hot water temperatures. It monitors water usage in real time, activating when water is needed and automatically shutting down when not in use.
This is a fully variable frequency multi-split unit, offering single-unit constant pressure and frequency regulation modes. When operating in multi-split mode, it can automatically add or remove water pumps based on user water usage; it also features a timed pump rotation system to balance pump operation time; and in case of main unit failure, it can automatically switch to a backup unit to ensure normal system water supply and extend system lifespan.
The panel simultaneously displays the set and feedback pressures and supports quick adjustment functions. The keyboard allows for easy switching of motor direction, constant pressure water supply, emergency water supply, and commonly used pressure gauge ranges, eliminating the inconvenience of changing wiring and modifying parameters, making it convenient to use.
The EDS310 features high and low pressure detection alarms, water shortage detection alarms, rust and freeze protection, and protection against overcurrent, overvoltage, undervoltage, and overload. It provides comprehensive protection for the water pump and piping network, ensuring stable and reliable system operation. Perfectly suited for residential homes, construction site water pressurization, and water supply systems in communities and villas, it enjoys high user trust.
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