Grundfos ALPHA2 User Manual

12
6. Control panel
Contents:
6.1 Elements on the control panel
6.2 Display
6.3 Light fields indicating the pump setting
6.4 Light field indicating the status of Automatic Night SetBack
6.5 Push-button for activation of Automatic Night SetBack
6.6 Push-button for selection of pump setting.
6.1 Elements on the control panel
Fig. 7 GRUNDFOS ALPHA2 control panel
The control panel on the GRUNDFOS ALPHA2 comprises:
6.2 Display
The display, pos. 1, is on when the electricity 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
electricity supply off and on.
TM03 8919 2707
Pos. Description
1 Display showing the actual pump power consumption in Watt
2 Eight light fields indicating the pump setting
3 Light field indicating the status of Automatic Night SetBack
4 Push-button for activation of Automatic Night SetBack
5 Push-button for selection of pump setting
1
2
3
4
5
ALPHA2 25-40 180
A
AUTO
ADAPT
Note
Faults preventing the pump from operating properly (e.g. seizing-up)
are indicated in the display by "- -". See 12. Fault finding chart.
Note
If the pump impeller is rotated, e.g. when filling the pump with water,
sufficient energy can be generated to light up the display even if the
electricity has been switched off.

Grundfos ALPHA2 Specifications

General

Max Head	8 m
Voltage	230 V
Frequency	50/60 Hz
Type	Circulator Pump
Max. operating pressure	10 bar
Series	ALPHA2
Connection Type	Threaded
Protection Class	IP42
Liquid Temperature Range	2°C to 110°C
Energy Efficiency Index	≤ 0.23
Connection size	G 1 1/2
EEI	≤ 0.23