English (GB)
17
7. Control panel
7.1 Elements on the control panel
Fig. 8
GRUNDFOS ALPHA1 control panel
The control panel comprises:
7.2 Display
The display (fig. 8, pos. 1) is on when the power supply has been
switched on.
The display shows the actual pump power consumption in Watt
(integer) during operation.
If a fault is indicated, correct the fault and reset the pump by
switching the power supply off and on.
7.3 "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.
7.4 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
information about the function of the settings.
7.5 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
T
M
05
79
69
17
1
3
Pos.
Description
1
Display showing the actual pump power
consumption in Watt
2
"POWER ON" light field
3
Seven light fields indicating the pump setting
4
Push-button for selection of pump setting
Note
Faults preventing the pump from operating
properly (for example seizing-up) are indicated in
the display by "- -". See section 12. Fault finding.
Note
If the pump impeller is rotated, for example when
filling the pump with water, sufficient energy can
be generated to light up the display even if the
power supply has been switched off.
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.
ALPHA1
ON
POWER
2
3
4
1
TM
04
25
27
26
08
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
Summary of Contents for ALPHA1 15-40
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