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
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
/
No function
b
/
a
Setting values
d
Confirmation
c
Information
e
Standard settings (Reset)
Heating operation
The selected set boiler water tem-
perature will be maintained when a
demand is being raised by the room
thermostat and the heating program is
set to DHW and central heating "
G
".
The boiler water temperature will be
maintained at the default frost protec-
tion temperature when there is no
demand.
The electronic temperature limiter
inside the burner control unit limits the
boiler water temperature to 82 °C.
Flow temperature setting range: 40 to
74 °C.
Constant temperature control unit
100
Function description
56
92
682
GB
Содержание Vitodens 333-F
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