Electrical installation
Installation and maintenance instructions ecoTEC 0020173113_01 29
8
8 Electrical installation
8.1 Preparing for installation
e
Danger!
Risk of death from electric shock!
Touching live connections can cause seri-
ous personal injury.
> Switch off the power supply.
> Secure the power supply against being
switched on again.
e
Danger!
Risk of electrocution as a result of an
improper electrical connection!
An improper electrical connection may neg-
atively affect the operational safety of the
boiler and result in material damage or per-
sonal injury.
> The electrical connection must be car-
ried out by a suitably qualified compe-
tent person who is responsible for com-
plying with the existing standards and
guidelines.
> Connect the boiler in accordance with
BS 7671 (IEE Regulations).
> For IE: Please observe the latest edition
of the ETCI regulations (Electro-Technical
Council for Ireland).
> Earth the boiler.
8.2 Opening/closing the electronics box
Opening the electronics box
> Remove the front casing from the boiler (¬ section 4.7).
1
2
3
4
8.1 Opening the back wall of the electronics box
> Fold the electronics box (1) forwards.
> Undo the 4 clips of the rear cover (2) of the electronics
box from the brackets (3) at the rear and sides of the
electronics box.
> Fold up the cover.
Closing the electronics box
> Close the rear panel on the electronics box.
> Push in the panel until it clicks into place in the clips.
> Fold up the electronics box.
> Push the right and left clips of the box against the side
panels on the boiler until they click into place.
> Replace the front casing on the boiler (¬ section 4.7).
8.3 Establishing the mains connection
e
Danger!
Risk of death from electric shock!
Mains connection terminals L and N remain
live even if the continuous voltage on/off
switch is turned off.
> Before establishing a mains connection,
switch off the power supply.
b
Caution.
Risk of damage from erroneous con-
nected voltage.
At mains voltages greater than 253 V and
less than 190 V, the functions may be
impaired.
> Make sure that the rated voltage of the
mains is 230 V.
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