Product Introduction; Product Description; Model Type; Applications - Grundfos ALPHA1 15-50 Bedienungsanleitung

6. Product introduction

6.1 Product description

1
2
Max. 95 % RH
3
IPX4D
Min./Max.
4
+2 °C / +110 °C
Max. 1.0 MPa
5
(10 bar)
Min./Max.
6
0 °C / +40 °C
7
< 43 dB(A)
Fig. 10 Pumped liquids, warnings and operating conditions
ALPHA1 pumps are a complete range of circulator pumps.

6.1.1 Model type

These installation and operating instructions cover ALPHA1
model B. The model type is stated on the packaging and
nameplate. See figs 11 and 12.
Fig. 11 Model type on the packaging
Fig. 12 Model type on the nameplate

6.2 Applications

The pump is designed for the circulation of water in heating
systems, domestic hot-water systems as well as air-conditioning
and cold-water systems.
Cold-water systems are defined as systems where the ambient
temperature is higher than the temperature of the pumped liquid.
The pump is the best choice for the following systems:
• underfloor heating systems
• one-pipe systems
• two-pipe systems.
The pump is suitable for the following:
• Systems with constant or variable flow rates where you want
to optimise the setting of the pump duty point.
• Systems with variable flow-pipe temperature.
11