Grundfos ALPHA2 User Manual

17
To ensure the optimum function of Automatic Night SetBack, the following
conditions must be fulfilled:
• The pump must be installed in the flow pipe.
The Automatic Night SetBack function does not work if the pump is
installed in the return pipe.
• The system (boiler) must incorporate automatic control of the liquid
temperature.
Activate Automatic Night SetBack by pressing .
See 6.5 Push-button for activation of Automatic Night SetBack.
Light in shows that Automatic Night SetBack is active.

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