INsTALLATIoN
Installation
44 | LWZ130 www.stiebel-eltron.com
10.4 Electrical connection
WARNING Electrocution
Carry out all electrical connection and installation work
in accordance with national and regional regulations.
WARNING Electrocution
The connection to the power supply must be in the form
of a permanent connection. Ensure the appliance can be
separated from the power supply by an isolator that dis-
connects all poles with at least 3mm contact separation.
This requirement can be met by contactors, isolators,
fuses, etc.
WARNING Electrocution
Before any work on the appliance, isolate the connecting
cables in the control panel.
WARNING Electrocution
Do not install the appliance if it is damaged and there is
a risk that live components could be touched.
f Check the appliance for external damage.
!
Material losses
Observe the fuse protection required for the appliance
(see chapter "Specification/ Data table").
Note
For the power cable, connections and connecting cables
to external control equipment, see chapter "Electrical
connection" and the wiring diagram in chapter "Spec-
ification".
Take the power consumption of the preheating coil into consid-
eration.
Netzanschluss
Mains Connection
X11
Fernbedienung
Remote Controller
4
3
2
1
326775-K40138
Elektr. Anschluss
Electr. Connection
X19
Keine Funktion
No Function
X18
Passivkühlung
Passive Cooling
2
1
X20
Intensivlüftung
Intensive Ventilation
2
1
D0000075765
X1
X1 Power supply
X11 Programming unit connection ( Safety extra low voltage )
X18 Window contact connection ( Floating )
X19 No function
X20 Intensive ventilation connection ( Floating )
Power supply
The appliance is delivered with a power cable without a plug.
Strain relief casing
Note
Never place the half shells of the strain relief casing to-
gether before you have prepared the cable and connected
the plug.
1.
2.
D0000068548
Cable cross-section mm
2
0.25 - 1.5
Sheath diameter mm 4.5 - 8
Insulation stripping length mm 9
f Prepare the end of the cable by stripping the sheath and
insulation.
f Push the wires into the side of the plug labelled with the
terminal assignment. If necessary, press a screwdriver on the
clamping springs to make it easier to insert the wires.
f Carefully put the plug into the flat insulation semi-shell of
the strain relief casing so that the terminal labelling remains
visible. The locking tabs on the sides of the plug must engage
in the top tabs of the strain relief casing.
f Make sure that the strain relief gutter is inserted in the upper
insulation semi-shell of the strain relief casing.
f Push the upper insulation semi-shell carefully onto the lower
insulation semi-shell. The locking tabs on the sides of the
lower insulation semi-shell must engage in the recesses of
the upper insulation semi-shell.
Programming unit
X11 : Programming unit connection ( Safety extra low voltage )
The programming unit is connected with an I²C bus. See program-
ming unit operating and installation instructions.
The programming unit is delivered with an adaptor cable whose
wires are marked with numbers. Connect the adaptor cable in
such a way that the same numbers are connected to one another.
Safety equipment for stove/fireplace operation
f Install the safety equipment in such a way that it interrupts
the appliance power supply when required.
Intensive ventilation switching contact
You can connect a floating switching contact, the actuation of
which switches the appliance to intensive ventilation. You can set
the runtime for intensive ventilation in parameter P2. After this
time has expired, the appliance returns to the previously appli-
cable fan stage.
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