STIEBEL ELTRON WWK 220 electronic - Calling up Fault Codes; Rapid Heating Key

OPERATION
Settings
ENGLISH
www.stiebel-eltron.com WWK 220-300 electronic | 9
In the set temperature1 menu, press the
menu key once to get to the menu for set
temperature2.
The "set temperature2" symbol appears.
The display of set temperature2 is denot-
ed with an "N".
Adjust set temperature2 to between 20
and 65°C using the plus and minus keys.
Operation with external signal transmitter (230 V input)
As standard, the appliances feature the ability to allocate a spe-
cific, individual set DHW temperature (set temperature2) to a
connected external signal transmitter, such as a PV system or a
low tariff transmitter.
This set temperature2 is activated when a phase (LF signal) is
present at terminal X0/2 (see chapter "Connection types"). While
activated, set temperature2 replaces the standard set DHW tem-
perature ("set temperature1").
If set temperature2 has been activated by the external signal
transmitter, this set temperature will then be active for at least
20minutes. If the signal remains active after those 20minutes
have passed, the compressor will run until the LF signal ends. If
not, the selected set temperature1 is activated again.
When the relevant set DHW temperature has been reached, the
compressor switches off and remains off for a minimum idle time
of 20minutes.
The following diagram illustrates the connections by means of a
sample signal sequence of an external signal transmitter.
Example:
- DHW temperature = 55°C
- Set temperature 1 = 50°C
- Set temperature 2 = 65°C
A
1
0
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 t [min]
B
1
1
0 2
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 t [min]
D0000034613
A LF signal
B Compressor
1 20 min. minimum runtime, set temperature 2
2 20 min. minimum compressor idle time
Note
An LF signal must be active for at least 60seconds, be-
fore the control unit responds to it. This will for example
prevent a brief burst of sunshine from triggering a heat-
up process, which due to a lack of further insolation can
then not be supplied with PV power generated on site.
4.3 Calling up fault codes
In the set temperature2 menu, press the
menu key once to get to the fault code
menu. A fault code will appear if a fault
has occurred. This menu remains inac-
tive if no fault has occurred.
See chapter "Troubleshooting/ Fault codes".
4.4 Rapid heating key
Press the rapid heating key.
The heat pump and electric emergency/
booster heater symbols appear.
4.4.1 Rapid/comfort heating
Normally, the rapid heating key is used to activate the rapid/com-
fort heating function, which enables you to cover an unexpect-
edly high DHW demand without changing any of the appliance's
standard settings.
If rapid/comfort heating is activated manually by pressing the rele-
vant key, the heat pump and the electric emergency/booster heater
will start in parallel, irrespective of the selected set temperature,
and will remain active until the DHW temperature in the cylinder
has reached 65°C. To save energy, the electric emergency/booster
heater switches off early, as soon as a temperature of 65°C has
been achieved in the upper cylinder section (rapid heating).
The rapid/comfort heating function remains active until a tem-
perature of 65°C has been achieved in the entire DHW cylinder
(comfort heating). The appliance then automatically switches back
to the previously set parameters.
Note
The electric emergency/booster heater and heat pump
symbols are displayed until the rapid/comfort heating
function has terminated.
During rapid/comfort heating, the electric emergency/
booster heater symbol is displayed until the heat pump
has heated the entire cylinder to 65°C and the function
is terminated. The electric emergency/booster heater al-
ready switches off when the 65°C has been achieved in
the upper cylinder section.
Note
If the rapid/comfort heating has been activated uninten-
tionally, you can cancel the function by lowering the set
temperature.
 Hold down the minus key, until you hear a clicking
noise caused by the heat pump and emergency/
booster heater switching off. At the same time, the
set temperature also jumps back to the value that
was selected before rapid/comfort heating was ac-
tivated.
314104-38523-9034_WWK_220-300_electronic_en_pl.indb 9 24.02.2015 10:33:28