Main functions

1. 1Clock/week display

2. Chosen system (1-8 system available)

System1: 1 collector array – 1 storage tank – 1 pump

System2: 1 collector array – 2 storage tanks – 2 pumps

System3: 1 collector array – 2 storage tanks – 1 pump – 1 electromagnetic valve

System4: 2 collector arrays (east/west roof) – 1 storage tank – 2 pumps

System5: 2 collector arrays (east/west roof) – 1 storage tank – 1 pump - 1 electromagnetic valve

System6: Electromagnetic valve controlled 2 collector arrays (east/west roof) – 2 storage tanks–  1 pump - 2 electromagnetic valves

System8: Pump controlled 2 collector arrays (east/west roof) – 2 storage tanks– 2 pumps - 1 　　　　 electromagnetic valve

3. Temperature difference on/off

4. Maximum tank temperature (protection of tank at high temperature)

5. Maximum collector temperature (collector cooling function)

6. Collector emergency cut-off

7. Limitation operation of collector at low temperature

8. Frost protection

9. Temperature controlled hot water circulation pump

10. Time controlled hot water circulation pump

11. Temperature controlled auxiliary heating during three time section

12. Holiday function

13. Auto function

14. Auxiliary function[a Temperature difference controlling <△T2>, b. Heating return increase, c. High temperature by-pass]

15. Protection functions ( a. Memory protection, b. anti-bacteria protection, c. anti-dry heating protection)