Grundfos ALPHA2 User Manual

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2. General description
Contents:
2.1 The GRUNDFOS ALPHA2 circulator pump
2.2 Advantages of installing a GRUNDFOS ALPHA2.
2.1 The GRUNDFOS ALPHA2 circulator pump
The GRUNDFOS ALPHA2 circulator pump is designed for the circulation
of water in heating systems and domestic hot-water systems.
GRUNDFOS ALPHA2 is the best choice for
• underfloor heating systems
• one-pipe systems
• two-pipe systems.
GRUNDFOS ALPHA2 incorporates a permanent-magnet motor and
differential-pressure control enabling continuous adjustment of the pump
performance to the actual system requirements.
GRUNDFOS ALPHA2 has a user-friendly front-mounted control panel.
See 6. Control panel and 15. Features.
2.2 Advantages of installing a GRUNDFOS ALPHA2
The installation of a GRUNDFOS ALPHA2 means
easy installation and start-up
• GRUNDFOS ALPHA2 is easy to install.
Thanks to the AUTO
ADAPT function (factory setting), the pump can, in
most cases, be started without making any settings.
high degree of comfort
• Minimum noise from valves, etc.
low energy consumption
• Low energy consumption compared to conventional circulator pumps.
The GRUNDFOS ALPHA2 is A-labelled.
Fig. 1 Energy label, A-labelled
TM03 0868 0705

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