Solar Accessories

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 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: ± 2℃

Range of collector temperature measuring: -10 ~200℃

Range of tank temperature measuring: 0 ~110℃

Suitable power of pump: 4 pumps possible to be connected, power of each pump < 200W .

Inputs: 5 sensors,

Pt1000 sensor (≤500℃) for collector (silicon cable≤280℃),

NTC10K, B3950 sensor (≤ 135℃) for tank, (PVC cable ≤105℃),

Outputs:4 relays, for circulation pumps or 3-way electromagnetic valve

Ambient temperature:-10℃ ~ 50℃.

Water proof grade: IP40.