22
WILO SE 03/2021
en
- Signal polarity: none
7 Commissioning
Commissioning only by qualified technicians.
7.1 Venting
• Fill and vent the system correctly.
If the pump does not vent automatically:
• Activate the pump venting function via the upper
operating button: press and hold for 5 seconds, then
release.
The pump venting function is initiated and
lasts 10 minutes.
The upper and lower LED rows flash in turn.
• Press the upper operating button quickly 2x to cancel.
7.2 Setting the control mode
Select control mode
Pressing the upper operating button:
LED indicates the set control mode
• 1st pressing of button: set control mode Δp-v.
CAUTION!
The connection of mains voltage (AC) will destroy the
PWM input and cause serious damage to the product.
• At the PWM input the maximum voltage is 24 V
pulsed input voltage.
NOTICE
After venting, the LED display shows the previ
-
ously set values of the pump.
