Grundfos alpha2 l - Control Panel Overview; Control Panel Elements; Power Indicator Light; Pump Setting Indicators

English (GB)
11
7. Control panel
7.1 Elements on the control panel
Fig. 8 GRUNDFOS ALPHA2 L control panel
The control panel comprises:
7.2 "POWER ON" light field
The "POWER ON" light field (fig. 8, pos. 2) is on when the power
supply has been switched on.
If a fault is indicated, correct the fault and reset the pump by
switching the power supply off and on.
7.3 Light fields indicating the pump setting
The pump has seven optional settings which can be selected with
the push-button. See fig. 8, pos. 4.
The pump setting is indicated by seven different light fields.
See fig. 9.
Fig. 9 Seven light fields
See section 11. Pump settings and pump performance for
information about the function of the settings.
7.4 Push-button for selection of pump setting
Every time the push-button (fig. 8, pos. 4) is pressed, the pump
setting is changed.
A cycle is seven button presses. See section 7.3 Light fields
indicating the pump setting.
TM04 2526 2013
Pos. Description
1 "POWER ON" light field
2 Seven light fields indicating the pump setting
3 Push-button for selection of pump setting
Note
When the "POWER ON" light field is on only, a
fault preventing the pump from operating
properly (for example seizing-up) has occurred.
See section 12. Fault finding.
1
2
3
ON
POWER
ALPHA2 L 25-40 180
TM04 2527 2608
Number of
button
presses
Light field Description
0
PP2
(factory setting)
Highest proportional-pressure
curve
1 CP1 Lowest constant-pressure curve
2 CP2 Highest constant-pressure curve
3 III Constant speed, speed III
4 II Constant speed, speed II
5 I Constant speed, speed I
6 PP1
Lowest proportional-pressure
curve
7 PP2
Highest proportional-pressure
curve
III II I PP1
PP2 CP2
CP1
ON
POWER