Control Of Twin-Head Pumps - Grundfos MAGNA Manual Del Usuario

8. Control of twin-head pumps

When fitted with two GENI modules, a twin-head pump functions fully auto-
matically.
Mount a GENI module on the control box of each pump head and connect
the modules using a cable.
Both pump heads must be connected to the electricity supply.
Note: Connect a short wire between the terminals 21 "X" and 22 "Q" in the
module on the right pump head, see pages 378 and 379.
For the connection of the left and right pump heads, see pages 378 and 379.
Left pump head Right pump head
Flow direction
Cable
Fig. 4 Twin-head pump
It is possible to connect two single-head pumps so that they operate as a
twin-head pump. In that case, it may be necessary to install non-return
valves. It is advisable to contact Grundfos to ensure optimum operation.
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