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For ecological operation, the following factors are
taken into account:
Heat demand of the building
Power consumption profile
Thermal energy generated
Gas consumption
CO2 emissions of the gas
CO2 emissions of the power exported to the grid
CO2 emissions of the energy drawn from the grid
Note
If the energy manager is switched off, the fuel cell start
time is determined only using the heat demand. The
heat demand within the building must be high enough
to achieve a runtime of at least 2 hours.
Example
You have selected economical operation.
The calculated heat demand produces an expected
runtime of 4 hours. The calculated power consumption
profile can be seen in Figure 8.
Based on the energy costs calculated from the other
factors, the next start time is calculated using the low-
est energy costs over the runtime, in this case 09:00.
Uhrzeit
0,0
Strombedarf in kWh
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
0,5
1,0
1,5
2,0
2,5
3,0
3,5
A
B
C
E
D
Fig. 8
APower consumption profile
BPower generation through fuel cell module
CRuntime of fuel cell module
DSelf-consumption
EPower drawn
Mixer extension kit
Assembly (accessories) for controlling a heating circuit
with mixer: See "Mixer".
Screed drying
Your contractor can switch on this function for screed
drying, for example in your new build or extension.
This means your screed is dried in line with a fixed
time program (temperature/time profile) that is appro-
priate for the building materials used.
Screed drying affects all heating circuits:
All rooms are heated according to the temperature/
time profile.
Your settings for central heating have no effect on
the duration of screed drying (max. 32 days).
No DHW heating
Underfloor heating
Underfloor heating systems are slow, low temperature
heating systems that respond only very slowly to short
term temperature changes.
Heating with reduced room temperature at night there-
fore does not result in any significant energy savings.
Appendix
Terminology (cont.)
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