24 | WPL E | WPL COOL WWW.STIEBEL-ELTRON.COM
INSTALLATION
SHUTTING DOWN THE SYSTEM
14. Shutting down the system
!
Damage to the appliance and environment
Never interrupt the heat pump power supply, even out-
side the heating season. Otherwise, system frost protec-
tion is not guaranteed.
The heat pump manager automatically switches the heat
pump to summer or winter mode.
14.1 Standby mode
To take the appliance out of use, simply set the heat pump man-
ager to "Standby mode". This way the safety functions that protect
the system remain enabled, e.g. frost protection.
14.2 Power interruption
If the system is permanently isolated from the power supply,
please observe the following:
!
Damage to the appliance and environment
If the heat pump and frost protection are completely
switched off, drain the system on the water side.
15. 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 instruc-
tions. They provide information on safety, operation, in-
stallation and maintenance of the appliance.
16. Troubleshooting
Note
Please observe the heat pump manager operating and
installation instructions.
Note
The following inspection instructions may only be carried
out by a qualified contractor.
If you cannot locate the fault using the heat pump manager, use
the controls on the IWS.
Open the control panel.
Read the following sections on troubleshooting and carry out
the instructions.
16.1 Controls on the IWS
The IWS helps you to troubleshoot if the fault cannot be identified
using the WPM.
26�03�01�0921�
1
2
1 LEDs
2 Reset button
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