119
Example
10
0
20
3030
40
50
60
6 7 8 9
Set flow temperature in °C
Time
A
B
C
D
Fig. 69
A
Start of operation at standard room temperature or
comfort room temperature
B
Set flow temperature in accordance with the set
heating curve
C
Set flow temperature in accordance with parame-
ter 424.3
D
Duration of operation with higher set flow tempera-
ture in accordance with parameter 424.4:
60 min
DHW heating
The burner, the circulation pump and the 3-way
diverter valve are started or changed over if the cylin-
der temperature lies 2.5 K below the set cylinder tem-
perature.
In the delivered condition, the set boiler water temper-
ature is 20 K higher than the set cylinder temperature.
If the actual cylinder temperature exceeds the set cyl-
inder temperature by 2.5 K, the burner shuts down and
circulation pump run-on begins.
Danger
Risk of injury due to increased DHW tempera-
ture.
Inform the system user of the risk from the
raised outlet temperature at the draw-off points.
■
Gas condensing system boiler:
If the set DHW temperature is set to over
60 °C
■
Gas condensing combi boiler:
If there are several draw-off events in quick
succession or several appliance calibration
processes
Increased DHW hygiene
The DHW can be heated to a specified (higher) set
DHW temperature (approx. 65 °C) for a period of one
hour.
Danger
Risk of injury due to increased DHW tempera-
ture.
Inform the system user of the risk from the
raised outlet temperature at the draw-off points.
If required, provide on-site scald protection
measures.
Function description
Appliance functions (cont.)
5593201
Functions
To Next Page
Loading...
