STIEBEL ELTRON WWK 220 electronic - Condensate Drain; Power Supply

ENGLISH
www.stiebel-eltron.com WWK 220-300 electronic | 17
INSTALLATION
Installation
!
Material losses
The integration of an external heat generator via the "heat
source flow" connection must not result in the application
limits being exceeded (see chapter "Specification/ Data
table").
The connected external heat generator cannot be con-
trolled by the appliance. The external heat generator
must be controlled externally. The possibility of exceed-
ing the maximum permissible DHW temperature in the
cylinder (as given in chapter "Specification/ Data table")
must be prevented.
!
Material losses
Carry out all installation work in accordance with regula-
tions. In Germany, to comply with heating system regula-
tions, an external heat generator must be connected with
a diaphragm expansion vessel and a safety valve between
the external heat generator and the DHW cylinder.
External heat generators may only be connected with DHW priority
control. As part of this, the cylinder temperature must be captured
with an electronic temperature sensor with safety low voltage.
The DHW cylinder of the appliance allows the temperature sensor
to be positioned at one of two different heights in the cylinder.
Using the sensor well in the upper third of the cylinder enables
later DHW heating through the external heat generator than the
lower sensor position.
10.3 Condensate drain
Install a condensate drain hose in order to remove the condensate
which forms.
 Connect the condensate drain bend included in the standard
delivery to the "condensate drain" connection.
 Connect a condensate drain hose to the condensate drain
bend.
!
Material losses
Ensure condensate cannot back up.
 Use a condensate drain hose with a diameter great-
er than the diameter of the condensate drain bend.
 Ensure the condensate drain hose is not kinked.
 Route the condensate drain hose with a continuous
fall.
The condensate drain must be open to atmosphere.
 Use a suitable condensate pump if there is insufficient fall.
Observe the building characteristics.
10.4 Power supply
WARNING Electrocution
Carry out all electrical connection and installation work
in accordance with national and regional regulations.
WARNING Electrocution
If the appliance is permanently connected to the power
supply, ensure that the appliance can be separated from
the power supply by an isolator that disconnects omnip-
olar with at least 3mm contact separation. Contactors,
mains isolators or fuses can be used for this.
WARNING Electrocution
 Observe the safety measures to prevent contact
with dangerous 'live' currents.
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
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 mains plug.
10.4.1 Standard connection without external signal transmitter
X0
PE
PE
N
N
L
L
2
1
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314104-38523-9034_WWK_220-300_electronic_en_pl.indb 17 24.02.2015 10:33:40