Grundfos CU200 SQFlex Control Unit
CU200 SQFlex Control Unit
A user-friendly interface box that maintains two-way communication with the SQFlex pump and monitors the operating conditions. The CU 200 is a combined status, control and communication unit especially developed for the SQFlex system.. Moreover, the CU 200 enables connection of a level switch placed in a water reservoir or tank. Built-in diagnostics indicate faults and dry-running, display operating status power consumption and level switch input. Communication between the CU 200 SQFlex Control Unit and the SQFlex Solar Pump takes place via the pump power supply cable. This is called mains borne signalling (or Power Line Communication), and this principle means that no extra cables between the CU 200 and the pump are required. It is possible to start, stop and reset the pump with the on/off button.
Features of the Grundfos CU200 SQFlex Control Unit:
The CU 200 offers:
- System monitoring
- Alarm indication.
The CU 200 offers indication of:
- Full water reservoir (level switch activated)
- Pump operation
- Input power.
The CU 200 indicates operational stoppage in case of:
- Dry running
- Service
- Insufficient energy supply.
In addition, the system features:
- Easy installation
- Maintenance confined to periodic cleaning of the solar panel
The CU 200 incorporates cable entries for:
- Power supply connection
- Pump connection
- Earth connection
- Level switch connection
| Technical Data | CU 200 SQFlex Control Unit |
| Voltage | 30-300 VDC, 8.4 A. 90-240 VAC, 8.4 A. |
| Power consumption | 5 W. |
| Current consumption | Maximum 130 mA. |
| Pump cable | Maximum length between the CU 200 and the pump: 650 ft. Maximum length between the CU 200 and the level switch: 2000 ft. |
| Back-up fuse | Maximum 10 A. |
| Radio noise | The CU 200 complies with the EMC Directive 89/336/EEC. Approved according to the standards EN 55014 and 55014-2. |
| Relative air humidity | 95%. |
| Enclosure class | IP 55. |
| Ambient temperature | During operation: —22 °F to +122 °F. During storage: —22 °F to +140 °F. |
| Marking | CE. |
| Weight | 4.5 lb. |
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