... water heater system. It can control two circulation system. solar controller: suits to the seperated high pressure solar water heater system ... ,selection available 7. Inputs: 5 inputs, Pt-1000 for collector, sensor temperature ≤500 ( silicon cable ≤280), NTC10K,B=3950 for tank ... , sensor temperature ≤135, ( PVC cable ≤105)8. Outputs: 4 outputs, one ...