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INSTALLATION
Installation
10.4.2 Connection
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Flush the pipes thoroughly.
The max. permissible pressure must not be exceeded (see chapter
“Specification / Data table”).
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Install a type-tested safety valve in the cold water supply
line. Please note that, depending on the static pressure, you
may also need a pressure reducing valve.
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Fit the DHW outlet pipe and the cold water inlet pipe. Con-
nect the hydraulic connections with flat gaskets.
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2�
09
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03
5
1
2
1 Cold water connection
2 Cold water supply pipe
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Connect the cold water supply directly to the cylinder or with
the connecting pipe routed between the cylinder feet.
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During fitting, counterhold the fitting with an open-ended
spanner (size 36).
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Check the rigidity of the connecting pipe and secure it further
if required.
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Size the drain so that water can drain off unimpeded when
the safety valve is fully opened.
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Fit the discharge pipe of the safety valve with a constant
downward slope and in a room free from the risk of frost.
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The safety valve discharge aperture must remain open to the
atmosphere.
10.5 Power supply
WARNING Electrocution
Before any work on the appliance, disconnect all poles
from the power supply.
WARNING Electrocution
The connection to the power supply is only permissible
as a permanent connection in conjunction with the re-
movable cable entry. Ensure that the appliance can be
separated from the power supply by an isolator that dis-
connects all poles with at least 3 mm contact separation.
WARNING Electrocution
Ensure that the appliance is earthed.
WARNING Electrocution
Install a residual current device (RCD).
!
Material damage
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 rapid heating,
cover the pushbutton with the plastic cap provided.
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Use a ballpoint pen to mark the selected connected load and
voltage on the type plate.