Grundfos CU 301 Instrucciones De Instalación Y Funcionamiento página 13

4. Control functions
4.1 On/off button
Figure On/off button shows the on/off button of CU
301.
bar
5.0
4.5
4.0
3.5
3.0
2.5
2.0
On/off button
Pos. Description
1 Red
2 Green
The green and red indicator lights in the on/off button
indicate pump operating condition as follows:
Indication Description
Green indicator light
The system is operational.
permanently on.
Green indicator light The system is not
off. operational.
Pump has been stopped by
Red indicator light
means of the on/off button. *
permanently on.
Red indicator light CU 301 is communicating
flashing. with Grundfos GO Remote.
*
If you use the on/off button to stop the pump, you must also
use this button to restart the pump.
Any alarm indication can be reset by pressing the
on/off button.
If you press and hold the on/off button for 5 seconds,
the pump starts, irrespective of any active fault or
alarm indications. When you release the on/off button,
the pump stops.
4.2 Indication of pump operation
On the graphical illustration on the CU 301 front, the
riser pipe shows running light when the pump is
operating.
When the pump is not operating, none of the indicator
lights are on.
2
1
Indication of pump operation
You can change the indicator light settings by using
Grundfos GO Remote. See section
lights.
Related information
5.3.12 Indicator lights
bar
5.0
4.5
4.0
3.5
3.0
2.5
2.0
5.3.12 Indicator
13