DTC1

4 digit 7 Segment display

Differential control action

1 o/p for water pump

1 sensor (Pt100) for Collector temp

1 sensor (Pt100) for Storage temp

DTC2

4 digit 7 Segment display

Differential control action

1 o/p for water pump

1 o/p for Heater

1 sensor (Pt100) for Collector

temp

1 sensor (Pt100) for Storage temp