English (GB)
16
4.2 Twin-head pump
The pumps are paired from factory. When switching on the power
supply, the heads will establish connection, which is indicated by
a green light in the centre of Grundfos Eye. Please allow
approximately 5 seconds for this to happen.
If one of the pump heads is turned off, the pump with power will
show a yellow indicator light, warning 77, see section 9. Fault
finding the product. In that case, power up the switched off pump.
Once both pumps are on, the pumps will establish connection and
the warning deactivates.
See sections 8.4.1 Digital input (Start/Stop), 8.4.2 Fault relay
output and 8.4.3 Twin-head pump function for additional
twin-head pump setup options.
4.3 Pairing and unpairing twin-head pumps
The pumps are paired from factory, however, it can be useful to
know how to pair the system e.g. for service purposes.
The pumps can also be unpaired.
4.3.1 Pairing
4.3.2 Unpairing
Make sure that both pump heads are powered on.
When you have paired the pumps, you must wait 10
seconds before unpairing.
The master pump head is the one from which you
initiate the pairing.
Step Action Illustration
1
Push and hold the
button on the
pump you wish to
assign as the
master pump for 5
seconds.
The centre of
Grundfos Eye on
both pumps will
begin to flash.
TM06 8524 1017
2
Push the button
on the other pump
to assign this as
the slave pump.
TM06 8525 1017
3
The centre of both
Grundfos Eye
indicator lights are
alight and
constant.
The two pumps
are now paired.
TM06 8527 1017
Step Action Illustration
1
Push and hold the
button on any of
the two pump
heads for 5
seconds.
TM06 8521 1017
2
The light in the
centre of Grundfos
Eye will disappear.
The system has
been deactivated.
TM06 8522 1017
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