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DIP switch (BA)
Check whether the DIP switch(BA) is set correctly.
Heating mode
BA
ON
1 2 3 4
D0000057052
Heating and cooling mode
BA
ON
1 2 3 4
D0000051579
16.1.1 Closing the terminal area
26_03_01_1867
Position the cover on the appliance.
Secure the cover with the four screws.
16.2 Light emitting diodes (LEDs)
1
2
26_03_01_0921
1 LEDs
2 Reset button
The following table shows the meaning of the LEDs on the IWS.
Red LED flashes Single fault. The appliance is shut down and re-
starts after 10minutes. The LED extinguishes.
Red LED illuminates
More than 5 faults within 2 hours run. The appli-
ance is shut down permanently and only restarts
following a reset on the IWS. This also resets the in-
ternal fault counter. The appliance can be restarted
after 10minutes. The LED extinguishes.
Green LED (centre)
flashes
The heat pump is initialising.
Green LED (centre) illu-
minates
The heat pump was initialised successfully and the
connection with the WPM is active.
Faults indicated by the red LED:
- High pressure fault
- Low pressure fault
- Central fault
- Hardware fault on the IWS (see fault list or message list for
the WPM heat pump manager)
16.3 Reset button
If the IWS was not initialised successfully, you can reset the set-
tings with this button.
For this, also observe chapter "Reinitialising the IWS" in the
heat pump manager instructions.
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