Control and display elements
A Pressure gauge
B Fault display (red)
C ON indicator (green)
D Reset button
E User interface
F ON/OFF switch
Keys at the user interface:
O Set boiler water tempera-
ture
F Set DHW temperature
O+F Emissions test function
K Standby mode
L DHW only
G Heating and DHW
/ Comfort mode
b/a Setting values
d Confirmation
c Information
e Standard settings (Reset)
Heating mode
The set boiler water temperature will
be maintained in the "Heating and
DHW" program when a demand is
raised by the room thermostat.
The boiler water temperature will be
maintained at the default frost protec-
tion temperature when there is no
demand.
The boiler water temperature will be
limited:
&
to 76 °C by the temperature control-
ler inside the burner control unit.
&
to 84 °C by the electronic tempera-
ture limiter inside the burner control
unit (during DHW heating to 85 °C).
&
to 100 °C by the temperature limiter
in the safety chain (interlocks the
burner control unit).
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