SP23 Solar Water Heater System Controllers

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
System7: Electromagnetic valve controlled 2 collector arrays (east/west roof) 2 storage tanks 2 pumps - 1 electromagnetic valve
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 , b.High temperature by-pass]
15. Protection functions ( a. Memory protection, b. anti-bacteria protection )

Main technical data
1. Dimension210mm

SUUNNY solar water heater controller, SOLAR system CONTROLLER, controller, solar heater controller