1 collector array 1 storage tank 1 pump and auxiliary heating Description: The solar circuit pump (R1) is switched on as soon as the switch-on temperature difference (Ton) between the collector array (T1) and the storage tank (T2) is reached. If the temperature difference between the collector array (T1) and storage tank (T2) drops below the switch-off temperature difference (Toff), or the temperature of storage tank (T3) reaches the preset maximum storage temperature, then the solar circuit pump ( R1) is switched off. Back-up heating by auxiliary boiler (detailed see paragraph 4.3): Within the preset time section of back-up heating, if the temperature T3 is below the switch-on temperature, then the circulation pump ( H1) of back-up heating is triggered, when T3 is heated to the switch-off temperature, circulation pump H1 of back-up heating is ceased.
Main technical dataSpecification SR868C8Q SR868C8
Appearance of controller 120mm× 120mm× 18mm 120mm× 120mm× 18mm
Power supply AC230V± 10% AC230V± 10%
Power consumption < 3W < 3W
Accuracy of temperature ± 2oC ± 2oC Measuring
Range of collector -10~220oC -10~220oC Temperature measuring
Range of tank 0~110oC 0~110oC Temperature measuring
Suitable power of pump three pumps, ≤ 600W three pumps, ≤ 600W
Suitable power of power≤ 1500W power≤ 1500W Electrical heater
Inputs 2PCS x PT1000 sensor (≤ 500oC) 1 x PT1000 sensor (≤ 500oC) For collector (silicon cable≤ 280oC), for collector (silicon cable≤ 280oC) 3PCS x NTC10K, B3950 sensor 2 x NTC10K, B3950 sensor (≤ 135oC) for tank, (PVC cable ≤ 105oC), (≤ 135oC) for tank, (PVC cable ≤ 105oC),
Outputs 3 relays, for circulation pumps 3 relays, for circulation pumps Or 3-way electromagnetic valve or 3-way electromagnetic valve 1 relay for electrical heater 1 relay for electrical heater
Ambient temperature -10~50 oC -10~50 oC
Water proof grade IP40 IP40
Main functions
1. Main menu DT O & DT F Temperature difference function 2. Main menu-THET timing heating 3. TEMP Temperature main menu 4. EM Emergency collector temperature(emergency switch-off temperature of collector) 5. CMX Maximum limited collector temperature (collector cooling function) 6. CMN low temperature protection of collector 7. CFR frost protection of collector 8. SMX Maximum temperature of tank 9. REC Tank re-cooling function
1 collector array 1 storage tank 1 pump and auxiliary heating Description: The solar circuit pump (R1) is switched on as soon as the switch-on temperature difference (Ton) between the collector array (T1) and the storage tank (T2) is reached. If the temperature difference between the collector array (T1) and storage tank (T2) drops below the switch-off temperature difference (Toff), or the temperature of storage tank (T3) reaches the preset maximum storage temperature, then the solar circuit pump ( R1) is switched off. Back-up heating by auxiliary boiler (detailed see paragraph 4.3): Within the preset time section of back-up heating, if the temperature T3 is below the switch-on temperature, then the circulation pump ( H1) of back-up heating is triggered, when T3 is heated to the switch-off temperature, circulation pump H1 of back-up heating is ceased.
Main technical dataSpecification SR868C8Q SR868C8
Appearance of controller 120mm× 120mm× 18mm 120mm× 120mm× 18mm
Power supply AC230V± 10% AC230V± 10%
Power consumption < 3W < 3W
Accuracy of temperature ± 2oC ± 2oC Measuring
Range of collector -10~220oC -10~220oC Temperature measuring
Range of tank 0~110oC 0~110oC Temperature measuring
Suitable power of pump three pumps, ≤ 600W three pumps, ≤ 600W
Suitable power of power≤ 1500W power≤ 1500W Electrical heater
Inputs 2PCS x PT1000 sensor (≤ 500oC) 1 x PT1000 sensor (≤ 500oC) For collector (silicon cable≤ 280oC), for collector (silicon cable≤ 280oC) 3PCS x NTC10K, B3950 sensor 2 x NTC10K, B3950 sensor (≤ 135oC) for tank, (PVC cable ≤ 105oC), (≤ 135oC) for tank, (PVC cable ≤ 105oC),
Outputs 3 relays, for circulation pumps 3 relays, for circulation pumps Or 3-way electromagnetic valve or 3-way electromagnetic valve 1 relay for electrical heater 1 relay for electrical heater
Ambient temperature -10~50 oC -10~50 oC
Water proof grade IP40 IP40
Main functions
1. Main menu DT O & DT F Temperature difference function 2. Main menu-THET timing heating 3. TEMP Temperature main menu 4. EM Emergency collector temperature(emergency switch-off temperature of collector) 5. CMX Maximum limited collector temperature (collector cooling function) 6. CMN low temperature protection of collector 7. CFR frost protection of collector 8. SMX Maximum temperature of tank 9. REC Tank re-cooling function
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