Flow line temperature–
maximum and minimum values
Because the flow line temperature
cannot be calculated higher than
the set maximum value or lower
than the set minimum value the
heating curve flattens out at these
temperatures.
Caution
Under floor heating systems are normally max flow line temperature
set to between 35 and 45 °C.
Must be restricted with underfloor cooling min. flow line temp. to pre-
vent condensation.
Check the max temperature for your floor with your installer/floor sup-
plier.
The figure at the end of the curve indicates the curve slope. The figure
beside the thermometer gives the curve offset. Use the control knob to
set a new value. Confirm the new setting by pressing the OK button.
Curve 0 is an own curve created in menu 1.9.7.
To select another curve (slope):
1.
Press the OK button to access the setting mode
2.
Select a new curve. The curves are numbered from 0 to 15, the greater
the number, the steeper the slope and the greater the supply temper-
ature. Curve 0 means that own curve (menu 1.9.7) is used.
3.
Press the OK button to exit the setting.
To read off a curve:
1.
Turn the control knob so that the ring on the shaft with the outdoor
temperature is marked.
2.
Press the OK button.
3.
Follow the grey line up to the curve and out to the left to read off the
value for the supply temperature at the selected outdoor temperature.
4.
You can now select to take read outs for different outdoor temperat-
ures by turning the control knob to the right or left and read off the
corresponding flow temperature.
31NIBE™ SMO 20Chapter 3 | SMO 20 – at your service
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