Grundfos CU 301 Instrucciones De Instalación Y Funcionamiento página 14

4.3 Pressure setting
The two arrow buttons on the CU 301 front are used
for the pressure setting.
bar
5.0
4.5
4.0
3.5
3.0
2.5
2.0
Pressure setting and indication
Indication of pressure setting
The system pressure set is indicated by a yellow
indicator light, which is permanently on.
Setting range: 2, 2.5 ... 5.0 bar.
Arrow-up button
When this button is pressed, the system pressure
setting is increased in steps of 0.5 bar.
Arrow-down button
When this button is pressed, the system pressure
setting is decreased in steps of 0.5 bar.
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4.4 Button locking
The buttons on CU 301 can be locked or unlocked by
pressing the two arrow buttons simultaneously and
holding them for 5 seconds or by using Grundfos GO
Remote.
bar
5.0
When the arrow buttons are used for locking, the
4.5
pressure setting may change.
4.0 Use the following procedure:
3.5 1. Increase the pressure one step up.
3.0
2. Press the arrow-down button as the first one when
2.5
pressing the two buttons.
2.0
Button lock indication
When the buttons are locked, the indicator light is
permanently on. See fig.
also section
Related information
5.3.10 Buttons on product
4.5 Alarm functions
CU 301 continuously receives operating data from the
pump. The alarm functions indicated on the CU 301
front are described in the following sections.
bar
5.0
4.5
4.0
3.5
3.0
2.5
2.0
Button lock indication. See
5.3.10 Buttons on product.