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Contents
1 Overview .............................................................................................. 4
2 Installation ........................................................................................... 5
2.1 Mounting ........................................................................................................................5
2.2 Electrical connection ...................................................................................................6
2.3 VFD Grundfos Direct Sensor™...............................................................................7
2.4 PWM output..................................................................................................................7
2.5 Data communication / Bus ..........................................................................................7
2.6 System overview...........................................................................................................7
2.7 Systems...........................................................................................................................8
3 Operation and function .................................................................... 19
3.1 Buttons ........................................................................................................................ 19
4 System-Monitoring-Display .............................................................. 19
4.1 Flashing codes ............................................................................................................ 20
Solar controller DeltaSol®CS/4
The DeltaSol®CS/4 controller is used for speed control of a HE pump in small
standard solar thermal and heating systems.
It is equipped with a PWM output and an additional input for a VFD Grundfos Di-
rect SensorTM that enables a precise heat quantity measurement.
The commissioning menu will lead you through the most important adjustments for
the initial conguration in only eight steps.
5 Commissioning.................................................................................. 21
6 Channel overview .............................................................................. 23
6.1 Display channels......................................................................................................... 23
6.2 Adjustment channels ................................................................................................ 26
7 Troubleshooting................................................................................. 36
8 Accessories ........................................................................................ 39
8.1 Sensors and measuring instruments ..................................................................... 40
8.2 VBus®accessories ..................................................................................................... 40
8.3 Interface adapters...................................................................................................... 40
9 Index ................................................................................................... 41
