Grundfos ALPHA+ Series User Manual

4
Declaration of Conformity
We Grundfos declare under our sole responsibility that the prod-
uct GRUNDFOS ALPHA+, to which this declaration relates, is in
conformity with the Council Directives on the approximation of
the laws of the EC Member States relating to
– Machinery (98/37/EC).
Standard used: EN ISO 12100.
– Electromagnetic compatibility (89/336/EEC).
Standards used: EN 61000-6-2 and EN 61000-6-3.
– Electrical equipment designed for use within certain voltage
limits (73/23/EEC) [95].
Standards used: EN 60335-1: 2002 and EN 60335-2-51:
2003.
Bjerringbro, 1st April 2006
Svend Aage Kaae
Technical Director
1. General description
GRUNDFOS ALPHA+ is a range of circulator
pumps with integrated differential pressure con-
trol enabling adjustment of pump performance
to the actual system requirements. In many
systems, this will mean a considerable reduc-
tion in power consumption, prevent noise from
thermostatic valves and similar fittings, and im-
prove the control of the system.
2. Applications
GRUNDFOS ALPHA+ is designed for circulat-
ing liquids in heating systems. The pumps can
also be used in domestic hot-water systems.
Prior to installation, read these instal-
lation and operating instructions. In-
stallation and operation must comply
with local regulations and accepted
codes of good practice.

Grundfos ALPHA+ Series Specifications

General

Max. Operating Pressure	10 bar
Frequency	50/60 Hz
Protection Class	IP42
Pump Type	Circulation Pump
Power Supply	230 V
Power Consumption	5-45 W
Temperature Range	2°C to 110°C
Connection Size	1"
Material	Cast iron
Connection Type	Threaded
Impeller Material	Composite