Grundfos ALPHA2 Series - Control Functions; Control Panel Elements

English (GB)
13
7. Control functions
7.1 Elements on the control panel
Fig. 18 Control panel
7.2 Display
The display (1) is on when you have switched on the power
supply.
The display shows the actual pump power consumption in watt
(integer) or the actual flow in m
3
/h in steps of 0.1 m
3
/h during
operation.
Faults preventing the pump from operating properly, for example
a blocked rotor, are indicated in the display by fault codes. See
section 9. Fault finding.
If a fault is indicated, correct the fault and reset the pump by
switching the power supply off and on.
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.
7.3 Light fields indicating the pump setting
The pump has ten optional performance settings which you can
select with the button (5). See fig. 18.
The pump setting is indicated by nine light fields in the display.
See fig. 19.
Fig. 19 Nine light fields
For information about the function of the settings, see section
9. Fault finding.
7.4 Light field indicating the status of automatic night
setback
Light in shows that automatic night setback is active. See fig.
18, pos. 3. See also section 7.5 Button for enabling or disabling
of automatic night setback.
7.5 Button for enabling or disabling of automatic night
setback
The button enables and disables automatic night setback. See
fig. 18, pos. 4.
Automatic night setback is only relevant for heating systems
prepared for this function. See section 9. Fault finding.
The light field is on when automatic night setback is
active. See fig. 18, pos. 3.
Factory setting: automatic night setback is not active.
If you have set the pump to speed I, II or III, you cannot select
automatic night setback.
TM05 3060 0912
Pos. Description
1
Display showing the actual power consumption in
watt or the actual flow in m
3
/h.
2
Nine light fields indicating the pump setting.
See section 7.3 Light fields indicating the pump
setting.
3
Light field indicating the status of automatic night
setback.
4
Button for enabling or disabling of automatic night
setback and manual summer mode.
5 Button for selection of pump setting.
6
Button for selection of parameter to be shown in the
display, i.e. actual power consumption in watt or
actual flow in m
3
/h.
7 Connectivity symbol.
TM05 3061 0912
1
2
3
4
5
6
7
Button
presses
Active light fields Description
0
factory setting
AUTO
ADAPT
1
Lowest
proportional-pressure
curve, PP1
2
Intermediate
proportional-pressure
curve, PP2
3
Highest
proportional-pressure
curve, PP3
4
Lowest
constant-pressure curve,
CP1
5
Intermediate
constant-pressure curve,
CP2
6
Highest
constant-pressure curve,
CP3
7
Constant curve/constant
speed III
8
Constant curve/constant
speed II
9
Constant curve/constant
speed I
10
AUTO
ADAPT