STIEBEL ELTRON WWK 302 H - Display and Operating Controls

OpEraTiON
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4.3 Display and operating controls
Note
15seconds after every operation, the appliance automat-
ically reverts to the default display (mixed water volume)
and saves the set value.
2
5
4
D000003788
3
1
1 Mixed water volume display (litres|40°C)/
Display of actual temperature in upper cylinder section/
Set temperature display1/
Set temperature display2/
Fault code display
2 "Plus" button
3 "Minus" button
4 "Rapid heat-up" button
5 "Menu" button
4.3.1 Symbols
Symbol Description
Mixed water volume: The currently available mixed water volume at
40°C and at 15°C cold water temperature is shown.
Set temperature adjustment: Subject to intake temperature and
hot gas temperature, the appliance may temporarily reduce the set
temperature to the actual value captured by the integral sensor. The
appliance displays the "Set temperature adjustment" symbol and
blocks DHW heating until the actual temperature captured by the
integral sensor is 6K below the temporary set temperature. DHW
heating is then re-enabled and the originally selected set tempera-
ture is applied again.
Actual temperature: The current actual temperature is shown. The
actual temperature indicates the temperature in the upper section
of the DHW cylinder and therefore largely corresponds to the outlet
temperature.
Set temperature
External signal transmitter: Set temperature2 is the DHW tempera-
ture to which the appliance regulates if an external signal transmit-
ter is connected and active.
Standby: The symbol flashes if the appliance PCB and load (com-
pressor) are supplied with power separately. This connection option
is required if the appliance is to be operated via switchable sockets
in an energy management system, for example (see chapter "Electri-
cal connection").
Electric emergency/booster heater: This symbol indicates the pres-
ence of a demand on this component. This symbol being displayed
does not necessarily mean that the electric emergency/booster
heater is running.
Heat pump: This symbol indicates the presence of a demand on this
component. This symbol being displayed does not necessarily mean
that the compressor is running.
Defrost active
Service/fault: Notify your qualified contractor if the "Service/fault"
symbol appears on the display. Continuous illumination of the
symbol indicates that the fault is not preventing appliance opera-
tion. A flashing "Service/fault" symbol indicates that water is not
being heated and it is essential you notify your qualified contractor.
Switching the appliance to emergency mode is a special case. The
electric emergency/booster heater will then heat the water despite
the flashing "Service/fault" symbol.
The "Electric emergency/booster heater" and "Heat pump" sym-
bols are displayed when there is a demand for these appliance
components. These symbols being displayed does not necessarily
mean that the electric emergency/booster heater and the heat
pump are running. Example: The appliance is in rapid/comfort
heat-up mode. The electric emergency/booster heater switches off
when the temperature in the upper cylinder section has reached
65°C. The heat pump has not yet heated the lower section to 65°C
and the rapid/comfort heat-up function has therefore not been
terminated yet. The electric emergency/booster heater symbol is
displayed until the rapid/comfort heat-up function has terminated.