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Energy-Efficient Operation
7.1.1
Examples of Settings
Standard external air temperature in °C
Required flow temperature
(at standard design temperature)
Temperature spread flow/return flow
Required return temperature
(at standard design temperature)
Setting for end point
of heating curve
A heat distribution system (e.g. underfloor heating) is
dimensioned for a maximum flow temperature at a particular
standard external temperature. This is dependent on the location
of the heat pump and is between -12 and -18 °C in Germany.
The max. return temperature that is set on the heating controller
must be entered for an external temperature of -20 °C. This is
done by entering the maximum return temperature for the given
standard external temperature in Fig. 7.2 on p. 11. The setting at
-20 °C can be read using the set of curves.
Fig. 7.2:
Heating curves to calculate the max. return set temperature
All manuals and user guides at all-guides.com
Underfloor heating
35 °C / 28 °C
-12
-14
-16
35 °C
35 °C
35 °C
7 °C
7 °C
7 °C
28 °C
28 °C
28 °C
30 °C
29 °C
29 °C
Example 1
Radiators
55 °C / 45 °C
-12
-14
-16
55 °C
55 °C
55 °C
10 °C
10 °C
10 °C
45 °C
45 °C
45 °C
48 °C
47 °C
46 °C
Example 2
NOTE
Step 1:
Adjust the heating curve to suit the respective building and local
conditions by setting the gradient (heating curve end point).
Step 2:
Set the desired temperature level via a parallel shift of the heating curve
upwards or downwards (indicator bar).
7.1
E-11
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