DHW heating
The burner, circulation pump and
three-way valve are started or chan-
ged over if the flow switch detects that
water is drawn off (>3 l/min).
The burner modulates to reach the
DHW outlet temperature and is limited
on the boiler side by the temperature
limiter (85°C).
Weather-compensated control unit
Control and display elements
A Pressure gauge
B Fault display (red)
C ON indicator (green)
D Reset button
E User interface
F Rotary selector for the standard
room temperature
G ON/OFF switch
Keys at the user interface:
A Central heating time pro-
gram
B DHW heating and DHW cir-
culation pump time pro-
grams (if connected to the
control unit)
H Holiday program
D Date/time
E Reduced room temperature
F Set DHW temperature
O+F Emissions test function
K Standby mode
L DHW only
G Heating and DHW
M Party mode
N Economy mode
b/a Setting values
d Confirmation
c Information
e Standard settings (Reset)
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