Grundfos MAGNA3 D 32-80 180 97924451 [16/1656] Twin head pump
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Grundfos MAGNA3 D 32-80 180 97924451 [16/1656] Twin head pump

Grundfos MAGNA3 D 32-80 180 97924451 [16/1656] Twin head pump
English (GB)
16
4.2 Twin-head pump
Fig. 17 MAGNA3 D
If you have not connected the second pump head to the power
supply, warning 77 appears in the display. See fig. 18.
Connect the second pump head, and restart the pump.
Fig. 18 Warning 77
5. Storing and handling the product
5.1 Frost protection
6. Product introduction
MAGNA3 is a complete range of circulator pumps with integrated
controller enabling adjustment of pump performance to the actual
system requirements. In many systems, this reduces the power
consumption considerably, reduces noise from thermostatic
radiator valves and similar fittings and improves the control of the
system.
You can set the desired head on the control panel.
6.1 Applications
The pump is designed for circulating liquids in the following
systems:
• heating systems
• domestic hot-water systems
• air-conditioning and cooling systems.
You can also use the pump in the following systems:
• ground-source heat-pump systems
• solar-heating systems.
6.2 Pumped liquids
The pump is suitable for thin, clean, non-aggressive and
non-explosive liquids, not containing solid particles or fibres that
may attack the pump mechanically or chemically.
In heating systems, the water must meet the requirements of
accepted standards on water quality in heating systems, for
example the German standard VDI 2035.
The pumps are also suitable for domestic hot-water systems.
We strongly recommend that you use stainless-steel pumps in
domestic hot-water applications to avoid corrosion.
In domestic hot-water systems, we recommend that you use the
pump only for water with a degree of hardness lower than
approximately 14 °dH.
In domestic hot-water systems, we recommend that you keep the
liquid temperature below 65 °C to eliminate the risk of lime
precipitation.
TM05 8894 2813
Check that the second pump head is connected to
the power supply.
2.1.5.1.0.0 "Status"
If the pump is not used during periods of frost, take
the necessary steps to prevent frost bursts.
Observe local legislation regarding pump housing
material.
Do not pump aggressive liquids.
Do not pump flammable, combustible or explosive
liquids.

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