8. Starting up the product
•
Fill the system with liquid and vent it.
•
Make sure the required minimum inlet pressure is available at
the pump inlet.
•
Switch on the power supply.
8.1 Venting the pump
1
2
15 min
TM082507
Venting the pump
Small air pockets trapped inside the pump may cause noise when
starting up the pump. However, because the pump is self-venting
through the system, the noise ceases over a period of time. Still, we
recommend venting the pump in new installations or when the pipes
have been emptied and refilled with water
1. Set the control mode to zone pump, setting III.
2. Let the pump run for 15 minutes.
The pump must not run dry.
You cannot vent the system through the pump.
8.2 Dry-running protection
The dry-running protection protects the pump against dry running
during startup and normal operation.
During startup
If water has not been detected before, the pump rotates the impeller
back and forward. If water is still not detected, it retries after 30
seconds.
The pump stops after maximum 30 attempts, and the warning and
alarm symbol on the display is flashing red four times.
During normal operation
If dry running is detected during normal operation, the pump stops
for 30 minutes and retries. After 144 attempts the pump will stop in
alarm mode.
The pump can be restarted by pressing the button on the pump.
The pump will not detect dry running if dry running has been
detected during the past 25 hours. If the pump has previously
detected water, the pump can sustain 25 hours of dry-running
operation.
Related information
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English (US)
