Solar system controller

18. Memory protection when power is failure.

17. Solar collector tube protection.

16. Low pressure protection

15. Hot water pipe insulation

14: Hot water circulation

13. Manual heating

12. Timing heating

11. Increasing water pressure during water is loaded.

10. Compulsive feeding water.

9. Feeding water when lack of water.

8. Timing feeding water

7. Temperature controlled feeding water

6. Manual feeding water

5. Water level pre-setup

4. Auto mode

3. Water level display.

2. Water temperature display

1. Time display

Most important function:

8. Power supply: 220V-240V.

7. Electromagnetic valve parameter: DC 12V, AC 220V, pressurized valve and un-pressurized valve are available. Operation pressure of pressurized valve 0.2 bar-8 bar, suitable for feeding water directly, Operation pressure of un-pressurized 0 bar.

6. Power of accompanied electrical heating wire:

Solar system controller SR500 mainly use for Non-pressure solar water heater .