APPLICATIONS CAPACITY Max.number of collectors:1 Max.number of storage tanks:1 Max.number of relays:4 Max.number of sensors:5 Max.number of application system:1 APPLICATIONS 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. I f 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: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 data
Dmension: 120mm x120mm x23mm
Installation: wall mounting,also suitable for mounting into patch panels
Power supply:200V-240V AC or 100V-130V AC,50-60Hz. .
Power consumption: < 3W
Accuracy of temperature measuring: ± 2oC
Range of collector temperature measuring: -10 ~200oC
Range of tank temperature measuring: 0 ~110oC
Suitable power of pump: 4 pumps possible to be connected, power of each pump < 200W .
Inputs: 5 sensors,
Pt1000 sensor (≤500oC) for collector (silicon cable≤280oC),
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: IP40.
Temperature difference control 1*ΔT
Collector emergency shutdown
Collector cooling function
Collector low temperature protection
Collector frost protection
Tank re-cooling function
Celsius and Fahrenheit temperature switch
Maximum temperature of tank(max.number 1)
Temperature controlled hot water circulation pump
RPM speed controlling(1*semiconductor)
Thermal energy measuring
Pump interval functions.
High temperature by-pass function
Manual Control( for 4 outputs:P1,P2,R1,H1)
Recovery to factory setting
Temperature query function