INSTaLLaTION
Shutting down
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WPL 15 IKS | WPL 25 IK |
55
13.2.4 Silent mode 2
Switching time
pair I
Switching time
pair II
Switching time
pair III
Mo
Tu
We
Th
Fr
Sa
Su
Mo - Fr
Sa - Su
Mo - Su
13.2.5 DHW program
Switching time
pair I
Switching time
pair II
Switching time
pair III
Mo
Tu
We
Th
Fr
Sa
Su
Mo - Fr
Sa - Su
Mo - Su
13.3 Appliance handover
Explain the appliance function to users and familiarise them with
its operation.
Note
Hand over these operating and installation instructions
to the user for safe-keeping. Always carefully observe all
information in these instructions. They provide informa-
tion on safety, operation, installation and maintenance
of the appliance.
14. Shutting down
!
Material damage
Never interrupt the power supply, even outside the he-
ating period. The system's active frost protection is not
guaranteed if the power supply is interrupted.
There is no need to switch the system off in summer. The heat
pump manager has an automatic summer / winter changeover.
!
Material damage
Observe the temperature application limits and the mini-
mum circulation volume on the heat utilisation side (see
chapter "Specification / Data table").
If the system is to be taken out of use, set the heat pump manager
to standby. This retains the safety functions designed to protect
the system (e.g. frost protection).
!
Material damage
If the heat pump and frost protection are completely swit-
ched off, drain the system on the water side.
Information on draining the DHW cylinder can be found in chapter
„Maintenance“.
15. Troubleshooting
WARNING Electrocution
f
f
Before working on the appliance, isolate it from the
power supply at the control panel.
Following isolation from the mains supply, parts of the
appliance may remain live for up to 2 minutes since the
capacitors still have to discharge into the inverter.
15.1 Fault display
Faults/errors in the system or in the heat pump are indicated
on the display. All menu items required for an in-depth system
analysis can be checked under the menu items START UP and
TEMPERATURES.
f
f
For troubleshooting, analyse all available parameters before
opening the heat pump control panel.
The heat pump manager will not indicate whether the electric
emergency/booster heater high limit safety cut-out has respon-
ded. The high limit safety cut-out can be reset by your contractor
through pressing the reset button. The high limit safety cut-out
response is generally caused by air in the heating circuit or an
inadequate heating flow rate.
f
f
Check the heating flow rate and ventilate the heating system.