15
Settings / function check
In the delivered condition, the appliance is set to a hot water temperature of >
61
°
C.
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Switch the mains power ON.
Note
Following an interruption of the power supply, compressor operation remains blocked for at least one
minute while the appliance initialises.
If the compressor subsequently fails to start, it may be blocked by additional safety devices (motor
overload relay, high pressure switch). This block can last between 1 and 10
minutes.
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Check the appliance function.
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Check the function of the safety assembly.
Appliance handover
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Explain the appliance function to users and familiarise them with its operation.
Example: The appliance is in "element boost" mode. The element boost heater switches off temporarily when
the temperature in the upper section of the cylinder reaches 67
°
C during heat-up. The heat pump has not yet
heated the lower section to 65
°
C and the "element boost heating" function has therefore not yet finished.
The "element boost heater" symbol is displayed until element boost heating has finished.
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Make users aware of potential dangers, especially the risk of scalding.
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Make users aware of critical environmental factors and requirements concerning the installation site.
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Inform users that water may drip from the safety valve during the heat-up process.
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Please note that the appliance is not protected against frost and corrosion when it is disconnected
from the power supply. At the factory, the appliance is fitted with rechargeable batteries that ensure
the power supply to the impressed current anode in the case of a power failure. The batteries must be
replaced by a qualified contractor every three years, if the power supply is regularly interrupted by a
switching contact or the security of supply is inadequate. We recommend a maintenance contract for re-
placing the batteries.
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Hand over these operating and installation instructions to users for safekeeping.
Recommissioning
Note
Following an interruption of the power supply, compressor operation remains blocked for at least one
minute while the appliance initialises.
If the compressor subsequently fails to start, it may be blocked by additional safety devices (motor
overload relay, high pressure switch). This block can last between 1 and 10
minutes.
If the appliance is switched off due to an interruption to the power supply, no specific measures for restarting
are required once the power supply has been restored.
Appliance shutdown
!
Material losses
If you disconnect the appliance from the power supply, it is no longer protected against frost or cor-
rosion.
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Only disconnect the appliance from the power supply for longer periods if you are also draining
the hot water cylinder. See chapter "Maintenance / Draining the appliance".
The appliance can only be switched off by interrupting the power supply.
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Disconnect the appliance from the power supply at the MCB/fuse in the domestic distribution board or
by unplugging from a general purpose outlet.
