The Grundfos 96625360 CU200 control unit MK2 solar with FS is a combined status, control and communication unit developed for the SQFlex system. Furthermore, the CU200 enables connection of a level switch. The CU200 incorporates cable entries for: power supply connection, pump connection, earth connection, and level switch connection.
Communication between the CU200 and the pump takes place via the pump power supply cable. This is called mains borne signaling (or Power Line Communication), and this principle means that no extra cables between the CU200 and the pump are required. It is possible to start, stop and reset the pump by means of the on/off button. The CU200 control unit offers: System monitoring and Alarm indication.
The following indications allow the operation of the pump to be monitored: Water reservoir is full (level switch), Pump is running, and Input power. The CU200 offers the following alarm indications: Dry running. Service needed in case of: no contact to pump, over voltage, over temperature, overload, and Insufficient energy supply.