Twin-Head Pump - Grundfos MAGNA3 D Installation And Operating Instructions Manual

When you have made the general
settings, select the desired control mode
4 or let the pump run in AUTO
For additional settings, see section
8. Control functions.

5.2 Twin-head pump

The pumps are paired from factory. When switching on the power
supply, the heads will establish connection. Please allow
approximately 5 seconds for this to happen.
If you have not connected both pump heads to the power supply,
warning 77 appears in the display. See fig. 14.
Connect the second pump head, and restart the pump. Once both
pumps are on, the pump heads will establish connection and the
warning deactivates.
Fig. 14 Warning 77
See sections 8.11.3 Digital inputs, 8.11.2 Relay outputs and
8.5 Multipump modes for additional twin-head pump setup
options.
5.2.1 Configuring twin-head pumps
If you replace a pump head of a twin-head pump, the twin-head
pump will function as two single pumps until you have configured
the pump heads and warning 77 is shown in the pump display.
See fig. 14.
To establish communication between the pump heads, run the
multipump setup via the "Assist" menu. The pump from which you
run the setup will be the master pump. See section
9.7.3 "Multipump setup".
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mode.
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