1. Start by opening the Solar Panel connector Box.
2. Use a multimeter to determine the polarity of the solar panel.
3. Form one string of solar panels by connecting 7 solar panels in series. Form 3 such strings.

Before connecting the Solar array to the Solar Pump System Controller we must connect a Circuit Breaker(CB) between them.

1. Place 6 Circuit Breakers(CB) in a PVC Box.
2. Connect the Positive wire from each string to one end of a separate CB.(Input of CB)
3. Connect the Negative wire from each string to one end of a separate CB.(Input of CB)
4. Connect the output of the 3 Positive CB's together.
5. Connect the output of the 3 Negative CB's together.
6. Now connect these to the inputs of a screw terminal.
7. Connect additional wires from the output of the screw terminals to the input 'Power IN' of the Solar Pump System Controller.
8. Connect wires from the 'L1,L2,L3' & 'Ground' terminals of the solar pump system controller to the matching numbers on the pump leads. Note: Other combinations may cause reverse rotation!
9. Some pumps come along with additional connections such as Low Water Probe, Float Switch, Battery System,etc. Follow the manual instructions for more details.
10. Connect the Water output of the pump to a long pipe and ensure that it is secured properly. Lower the pump into the water source and switch it on.

The Solar Pump System controller is the brain of the entire project. It basically regulates the current supplied to the pump from the solar panels.

The Power IN,L1,L2,L3 and Ground connector terminals are in the controller.

Most Solar Pump System Controllers come along with LED indicators. Given below are the descriptions of the LED indicator functions of the controller that I have used.

System(green)

When the LED is Green, the controller is switched on and the power source is present. In low-power conitions, the light may show even if there is not enough power to run the pump.

Pump ON(green)

Motor is turning. Sequence of flashing indicates pump speed. Pump speed (RPM) can be read of the flashing sequence of the Pump ON LED as follows:

LED ON > 900

1 flash > 1,200

2 flashes > 1,600

3 flashes > 2,000

4 flashes > 2,400

5 flashes > 2,800

If the Pump Overloads, the LED will change to red.

Source Low(red)

If the water source has dropped below the level of the low water probe. After the water level recovers, the pump will restart, but this light will slowly flash until the sun goes down, power is interrupted, or the power switch is reset. This indicates that the water source ran low at least once since the previous off/on cycle.

Tank Full(red)

Pump is turned off by action of the remote float switch.

Pump Specifications:

1. Submersible Pump.
2. 3-Phase.
3. Flow Rate: 22m^3/hr

The pump basically uses the power supplied from the solar panel array inorder to pump water from the source. Mostly the pumps come with four wires: 3 wires for each phase and one wire for Ground.

The Motor Power, Motor Voltage, Motor current, Motor Speed, Flow Rate, Efficiency, etc are vary from different pumps and manufacturers. Choose a suitable pump depending on your requirement.