6 720 820 872 (2016/12)
CR 400 | CW 400 | CW 800
Service menu | 31
7.1.2 Boiler data menu
Heat source-specific settings, e.g. the maximum heat output or
the used heating pump, can be made in this menu. With these
settings e.g. the operating times and the energy consumption
of the pump can be optimised. Here, it can be set which pump
characteristic map is used and how long the pump run-on time
is. Further information is available in the technical
documentation of the used heat source and, if installed, the
module. This settings are only available if the system is
designed and configured accordingly (e.g. in systems without
cascade module).
Menu item
Adjustment range
Description
Pump type
Output-
compensated
The heating pump is operated with reference to the burner output.
Delta P-
compensated 1...4
The heating pump is operated with reference to the differential pressure.
Pump run-on time
24 h
Pump run-on time after the burner is off to discharge the heat from the heat
source
0 ...
3
... 60 min
Pump logic temperature
0 ...
47
... 65 °C
Below this temperature the pump is off to protect the heat source from
condensate formation (only available in non-condensing appliances).
Pump control mode
Saving energy
The pump is either running during every heat requirement (set flow
temperature > 0 °C) or in an energy-efficient mode.
Heat request
Pump rate min. output
0 ... 100 %
Pump rate at minimum heat output (pump output proportional to heat output)
Pump rate max. output
0 ... 100 %
Pump rate at maximum heat output (pump output proportional to heat
output)
Pump block. time ext.3WV
0
... 60 s
Pump blocking time with external 3-way valve in seconds
Maximum output
0 ... 100 %
Maximum released heat output of the heat source
Upper limit max. output
0 ... 100 %
Upper limit of the maximum heat output
Max. DHW output
0 ... 100 %
Maximum released DHW output
Top limit max DHW output 0 ... 100 %
Upper limit of the maximum DHW output
Top limit max flow temp.
30 ...
82
°C
Upper limit of the flow temperature
Min. appliance output
0 ... 100 %
Minimum nominal heat output (heating and hot water)
Time interv (stdby period) 3 ...
10
... 45 min
Time interval between switching the burner off and back on in minutes
TempInterv (StdbyPeriod) 0 ...
6
... 30 K
Temperature differential for stopping and restarting the burner
Duration of heat retention 0 ...
1
... 30 min
Heating mode is blocked after DHW heating, in minutes
Venting function
Off
Venting function, e.g. following maintenance.
Auto
On
Trap filling program
Off
Program for charging the siphon in the heat source at minimum output
One boiler minimum
Table 14 Settings in the boiler data menu
Summary of Contents for CR 400
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