[Summary]

Booster pump system is automatic water supply system that lets you eliminate the traditional water tank on the roof of your building. The system feeds water with consistent pressure directly from underground water reservoir to the system users; the system consists of several numbers of pumps and an Inverter control panel that controls the number of pumps to run based on system discharge flow rate.
The control panel is the core part of the booster pump system. We, Hwrang System, have been specialized for the design and production of the control panel for the booster pump system.

[A brief introduction of the system control logic]

The system senses the momentary system discharge flow rate by using P.T, a type of pressure detecting sensor, or P.S, a type of pressure switch. As the system discharge flow rate increases, the control panel receives the flow rate data from the pressure detecting sensor or the pressure switch, and simultaneously commands more pumps to run one by one in order until system operating pressure reaches up to system setting pressure. As system discharge flow rate drops, the control panel automatically commands the pumps running to stop in order.
The last pump in stopping order won't stop pumping until a diaphragm type pressure tank becomes pressurized. When only small amount of feed water is needed, the system supplies water from the diaphragm tank without running pumps.
This significantly reduces pump start/stop frequency, resulting in maximizing the system lifespan as well as minimizing the overall system power consumption.

[Benefit]

The control system also provides "Alternation control method" that varies start/stop order of each pump in system operating sequence.
The concept of this function is to operate all the pumps in a system for equal period of time. With this function, you can avoid overuse of particular pump, and system maintenance cost will be optimized by maximizing lifetime of each pump.

Another befit of the new water supply system obtained from eliminating the problems of the traditional water supply method using roof water tank is as following;

1. Save electric power consumption cost through optimizing pump start/stop.

2. Consistent water supply; avoid temporary water shortage.

3. Secure clean water supply by removing roof water tank where water mainly is contaminated.

4. Small installation space requirement.

5. Eliminate traditional roof water supply tank; give more flexibility of building design and reduce total construction material cost.

6. Easy maintenance; various pumping system faults save in memory to confirm the pumping system status and show each fault data list by number and time.

7. Eliminate piping outside building; avoid winter freeze-crack.

[Variable Speed Control Panel]

[Step Control Panel]