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Installation
Commissioning
10.2.2 Connection
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Flush the line thoroughly.
The max. permissible pressure must not be exceeded (see chapter
"Specification / Data table").
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Install a safety assembly. Please note that, depending on the
static pressure, you may also need a pressure reducing valve.
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Connect the DHW outlet line and the cold water inlet line.
Connect the hydraulic connections with flat gaskets.
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Size the drain so that water can drain off unimpeded when
the safety valve is fully opened. The discharge aperture of the
safety valve must remain open to the atmosphere.
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Fit the discharge pipe of the safety assembly with a constant
slope.
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Observe the information in the safety assembly installation
instructions.
10.3 Electrical connection
WARNING Electrocution
Before any work on the appliance, disconnect all poles
of the appliance from the power supply.
WARNING Electrocution
The connection to the power supply is only permissi-
ble as a permanent connection in conjunction with the
removable cable grommet. The appliance must be able
to be separated from the power supply by an isolator
that disconnects all poles with at least 3 mm contact
separation.
WARNING Electrocution
Please note that the appliance must be connected to the
earth conductor.
WARNING Electrocution
Install a residual current device (RCD).
!
Material losses
Observe the type plate. The specified voltage must match
the mains voltage.
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Pull off the temperature selector.
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Undo the screws at the bottom of the control panel cover and
remove the cover.
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Prepare the power cable and feed it through the cable grom-
met into the control panel. Select a cable with a cross-section
suited to the load of the appliance.
Note
If you connect the appliance for 3 kW output, two heating
elements are connected in series and the surface load is
reduced. This can significantly prolong the service life of
the electric heating elements, particularly in areas with
a water hardness level of 14 °dH or higher.
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Connect the required load in accordance with the connection
examples (see chapter "Specification / Wiring diagrams and
connections").
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Fit the control panel cover.
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Push on the temperature selector.
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If the power supply utility does not permit a booster heater,
cover the pushbutton using the plastic cap provided.
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Use a ballpoint pen to mark the selected connected load and
voltage on the type plate.
11. Commissioning
11.1 Commissioning
26
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Open a draw-off point until the appliance has filled up and
the pipework is free of air.
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Adjust the flow rate. For this, observe the maximum permis-
sible flow rate with a fully opened tap (see chapter "Specifi-
cation / Data table"). If necessary reduce the flow rate at the
butterfly valve of the safety assembly.
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Carry out a tightness check.
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Turn the temperature selector to maximum temperature.
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Switch the mains power ON.
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Check the function of the appliance.
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Check the function of the safety assembly.
11.1.1 Appliance handover
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Explain the appliance function to users and familiarise them
with its operation.
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Make users aware of potential dangers, especially the risk of
scalding.
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Hand over these instructions.
11.2 Returning into use
See chapter "Commissioning".
12. Settings
Temperature selection limitation
You can adjust the temperature selection limitation beneath the
temperature selector.
Factory setting: Limited to 60 °C
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Set the temperature selector to "cold" and isolate the appli-
ance from the power supply.
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Remove the temperature selector and the control panel
cover.