INSTALLATION
Maintenance
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WPL 10 AC | WPL 10 ACS |
21
12.4 Decommissioning
If the appliance is to be taken out of use, set the WPM 3 to standby.
This retains the safety functions designed to protect the system
(e.g. frost protection).
!
Material losses
If the heat pump and frost protection are completely
switched off, drain the system on the water side.
13. Maintenance
Check the condensate drain (visual inspection). Remove contam-
inants and blockages immediately.
1.
2.
1
D
00000
37
83
1
1 Inspection port
!
Material losses
Keep the air discharge and intake apertures free from
snow and ice.
Regularly remove all leaves and accumulated dirt from the evap-
orator fins, which can be accessed by removing the side panel on
the condenser side.
14. Troubleshooting
Note
Observe the heat pump manager operating and installa-
tion instructions (WPM 3).
If a fault cannot be located during service using the heat pump
manager, open the control panel in emergencies and check the
IWS settings. This check must only be carried out by a qualified
contractor.
14.1 Light emitting diodes (LEDs)
BA
BA
1
2
26
�0
3�
01
�0
92
1
1 LEDs
2 Reset button
The following table shows the meaning of the LEDs of the IWS.
LED indicator
Meaning
Red LED flashes
Single fault. Appliance stops and restarts after 10
minutes, and 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. The internal fault
counter will then be reset. The appliance can be re-
started after 10 minutes. 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 3 is active.
Faults indicated by the red LED:
- High pressure fault
- Low pressure fault
- Other fault and
- Hardware fault on the IWS (see fault list)