Solar Pump Station SR981S for Split Solar Water Heater System
including Controller and Pump
Technical data:
Dimension: 420mm*280mm*155mm
Power supply:200V-240V AC or 100V-130V AC50-60Hz. .
Power consumption: < 3W
Accuracy of temperature measuring: ± 2oC
Range of collector temperature measuring: -10oC ~200oC
Range of tank temperature measuring: 0oC ~100oC
Suitable power of pump: 3 pumps possible to be connected power of
each pump < 200W .
Suitable power electrical heating:1 relay for 1500W(1500w-4000w
must be use SR802)
Inputs: 5sensors
2pcs*Pt1000 sensor (≤500oC) for collector (silicon cable≤280oC)
4pcs*NTC10K B3950 sensor (≤ 135oC) for tank (PVC cable ≤105oC)
Outputs:4 relays for circulation pumps or 3-way electromagnetic
valve
Ambient temperature:-10oC ~ 50oC.
Water proof grade: IP42.
FUNCTIONS:
Pump support:
1. Can be support Normal Pump.
2. Can be support High Efficiency pump.
Set up clock/week
Functions operation and parameters setup (user grade)
1 THET Timing heating 37
2 CIRC DHW circuilation function activated /deactivated
3 tCYC Tempeature or time setting for DHW pump in three time
sections
Functions operation and parameter setup (engineer grade)
1. DT Temperature difference for solar circuit pump
2. EMOF Maximum switch-off temperature of collector (for collector
emergency close function)
3. CMX Maximum limited temperature of collector (collector cooling
function)
4. CMN Low temperature protection of collector
5. CFR frost protection temperature of collector
6. REC Recooling temperature of tank
7. SMX1 Maximum temperature of tank 1
8. SMX2 Maximum temperature of tank 1
9. MAX1 Maximum switch-off temperature for heat transfer between
tank and heat return
10. MIN1 Minmium switch-on temperature for heat transfer between
tank and heat return
11. MAX2 Maximum switch-off temperature for heat transfer between
heat exchanger and tank
12. MIN2 Minmium switch-on temperature for heat transfer between
heat exchanger and tank
13. C＿F Switch between Celsius and Fahrenheit
APPLICATIONS CAPACITY
Max.number of collectors:2
Max.number of storage tanks:2
Max.number of relays:4
Max.number of sensors:7
Max.number of application system:15
