Control and display elements
A
Pressure gauge
B
Fault indicator (red)
C
Optolink interface
only in conjunction with the diag-
nostic adaptor (accessory) and
Vitosoft (accessory)
D
ON indicator (green)
E
Reset button
F
User interface
G
Rotary selector for standard room
temperature
H
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
Time/date
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)
Heating operation
The control unit determines a set boil-
er water temperature subject to out-
side temperature or room temperature
(if a room temperature-dependent
remote control is connected) and to
the slope/level of the heating curve.
The determined set boiler water tem-
perature is transferred to the burner
control unit. From the set and actual
boiler water temperatures, the burner
control unit calculates the modulation
level and regulates the burner accord-
ingly.
Weather-compensated control unit
102
Function description
56
92
682
GB
Содержание Vitodens 333-F
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