Hot water symbol
“A”
“B”
Circulation pump symbol
Heating system symbol
Plus button
-
1.0
13.43
A BI II III I II
1.0
A
5 0 . 0 ° C
If the electrical addition is connected
Addition. heat symbol
“I” Electrical step 1
“II” Electrical step 2
“I II” Electrical step 1+2
“III” Electrical step 3
- Compressor is operational
Compressor symbol
“A” Heating mode
“B” Cooling mode
Button pressing (the change does not
need to be confirmed with the enter
button). - Current operating mode
shown in display - Further button press
changes operating mode. Press the
enter button to return to the normal
display mode.
Operating status
For information about the various operating
modes, see the different sections regarding
comfort settings.
Extra hot water operation starts with this
button. The operation is cancelled when
the button is pressed again.
The change does not need to be
confirmed with the Enter button.
Extra hot water (XHW)
Pressing the button takes you directly to
menu 1.0.
Menu 1.0
- Turning clockwise (+) offsets the Heating
Offset heating curve
Normal mode
Switch
1
All control functions connected.
Shutdown
0
Only the circulation pump and
electric heater (electrical step 2)
are operational.
Emergency mode
curve. When the knob is turned
menu 2.0 is shown on the display and
the value for the calculated supply
temperature changes.
For details, see Default Heating curve setting.
Hot water charging in progress.
Temporary Extra hot water operation in
progress.
Time based Extra hot water operation in
progress, e.g. periodic.
Circulation pump in operation.
With two circulation pumps (requires ESV
22 accessory), the operating pump is also
indicated.
Heating in progress.
Menu number
Key lock activated.
Description of current display
parameter
Information symbols
Plus button
Scroll forward in the menu system.
- Increase the value of the selected parameter
See the section “Control – General”
Minus button
- Scroll back in the menu system.
- Reduce the value of the selected parameter
See the section “Control – General”
Enter button
- Entering lower layer in the menu system.
- Parameter change activated
See the section “Control – General”
Status lamp
During normal operation, the status lamp
lights green. In the event of an alarm, it
lights red.
- Parameter change confirmed
