DHW heating
The burner, the circulation pump and
the three-way valve are started or
changed over, if the cylinder tempera-
ture lies 2.5 K below the set cylinder
temperature.
The set boiler water temperature is
adjusted 20 K higher than the set
DHW temperature (adjustable via
coding address "60"). The burner will
be switched OFF and the circulation
pump run-on time will begin, if the
actual cylinder temperature exceeds
the set cylinder temperature by 2.5 K.
Weather-compensated control unit
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
Constant temperature control unit
(cont.)
90
Function description
5692
673
GB
Содержание VITODENS 300-W
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