INTRODUCE 

For below solar hot water system  :

1. Split type high pressure system 

2. Split type Low / Non pressure system + Assistant tank with float ball

APPLICATIONS CAPACITY 

1. Max.number of collectors:1

2. Max.number of storage tanks:1

3. Max.number of relays:2

4. Max.number of sensors:3

5. Max.number of visualization application system:1

TECHNICAL DATA

1. Size of Controller:178mm x120mm x43mm

2. Power supply:AC100-240V,50-60Hz. .  

3. Power consumption: < 2.5W

4. Accuracy of temperature measuring: ± 0.1oC

5. Range of collector temperature measuring: -10oC ~220oC

6. Range of tank temperature measuring: 0oC ~110oC

7. Conventional/High efficiency pump both available on

8. Inputs: 

   1pcs*Pt1000 sensor (≤500oC) for collector (silicon cable≤280oC),

   2pcs*NTC10K, B3950 sensor (≤ 135oC) for tank, (PVC cable ≤105oC),

   # 1pcs * 485 communication port(Optional)

9. Outputs: 

   R1 : For conventional/High efficinecy circulation pump ,  maximum current 1A .  

   HR : For backup heating ,maximum current 2A , It can connect with SR802 high power relay .

   # PWM :  variable frequency output (on/off switchable, 0-10V)

10. Ambient temperature:-10oC ~ 50oC.

11. Water proof grade: IP41

Delivery list

1. 1 * SR208C controller

2. 1 * accessory bag

3. 1 * user manual

4. 1 * PT1000 temperature sensor (φ6*50mm,cable length 1.5meter)

5. 2 * NTC10K temperature sensor (φ6*50mm,cable length 3meter)

Main functions:

1. CLK time setup 

2. AH Afterheating/thermostat

3. PWDPassword protection

4. LOAD Tank heating

5. OCEM Collector emergency shutdown

6. OCCO Collector cooling

7. OCMI  Collector minimum temperature

8. OCFR Antifreeze

9. OTCO Tube collector

10. PUMP Pump control mode

11. OSYC System cooling

12. OSTC Tank cooling

13. MAN Manual mode

14. BLPR Blocking protection

15. OTDI Thermal Disinfection

16. UNIT C-F switch

17. BEEP beeper fault warning

18. Memory function

19. Screen protection

20. Trouble checking