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8.2.9 Activating the flow test service function
The operation switch must be set to AUTO (middle
position) in order to activate the flow test service
function.
Press the
and
buttons simultaneously for 2
seconds.
"on" and the current flow rate in [l/min] are
displayed alternately.
Ending the flo
w test service function:
Briefly press the
or
buttons or the controller
automatically exits back to automatic operation after
5 minutes.
NOTE
The flow test service function can only be activated
when a Grundfos Direct Sensors
TM
VFS 1-12 is con-
nected.
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