STIEBEL ELTRON WWK 220 electronic Bedienung Und Installation Seite 53

INsTALLATIoN
Installation
WARNING Electrocution
Coming into contact with 'live' components presents a
threat to life. Disconnect the appliance from the power
supply before carrying out work on the control panel.
Prevent the power supply from being switched on while
you are working on the system.
WARNING Electrocution
Insufficient earthing can lead to electrocution. Ensure
the appliance is earthed according to locally applicable
requirements.
WARNING Electrocution
The power cable must only be replaced (for example
if damaged) with an original spare part by a qualified
contractor authorised by the manufacturer (connection
type X).
Material losses
!
Install a residual current device (RCD).
Material losses
!
The specified voltage must match the mains voltage. Ob-
serve the type plate.
Material losses
!
Never connect the appliance to the power supply before
the DHW cylinder is filled.
The appliance is delivered with a power cable with fitted plug.
10.4.1 Standard connection without external signal transmitter
X0
PE
GNYE
PE
N
BU
N
L
BN
L
2
2
1
1
BN Brown
BU Blue
GNYE Green/yellow
10.4.2 Connection options: Operation with external switching
device that interrupts appliance power supply
To ensure cylinder corrosion protection, appliances are equipped
with a maintenance-free impressed current anode as standard.
A maintenance-free impressed current anode, when compared
to a sacrificial anode, offers the greatest protection and saves on
costs for maintenance that would otherwise be required. To ensu-
re cylinder corrosion protection however, the impressed current
anode must be supplied with power permanently.
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If the device is to be used with external switching devices (e.g.
external time switch, switched socket, energy management sys-
tem, power-interrupting signal from the power supply utility)
that interrupt the appliance power supply, the impressed current
anode must not be subject to the effects of such devices, but sup-
plied independently. For such cases, the appliance allows separate
power supplies for load (compressor) and electronic (including
impressed current anode) circuits.
f Remove the appliance cover (see chapter "Cleaning and
maintenance / Removing the appliance cover").
1
1 Strain relief
2 Terminal X0
f Prepare the electric cables in such a way that each cable ter-
minates with a wire ferrule.
f Push the cables through one of the cable entries in the appli-
ance casing.
f Route leads through the strain relief.
f Remove the jumper which leads from X0/N to X0/2 in the de-
livered condition.
f Remove the jumper which leads from X0/L to X0/1 in the de-
livered condition.
A
X3
B
3
3
2
A Power supply provided by power supply utility or energy
2
management system for switching the load (compressor)
1
B Power supply to impressed current anode and PCB
BN Brown
1
BU Blue
GNYE Green/yellow
f Connect the electric cables for the separate impressed cur-
rent anode power supply to X0/1 and X0/2.
Material losses
!
The power supply to the impressed current anode must
be continuously ensured.
Material losses
!
With regard to the external switching device, the mini-
mum runtime and minimum pause times must be ob-
served (see chapter "Appliance description/Minimum
runtime and minimum pause time").
X0
PE
GNYE
PE
PE
N
BU
N N
L
BN
L L
2
N 2
1
L1 / L2 / L3
1
WWK 220-300 electronic |
2
X3
3
3
2
2
1
1
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