Adjustments to be made regularly
Adjustment
of Part of
the
Heat
Curve
At outdoor temperatures between -5°C and +5°C part of the heat curve may need adjusting if the indoor
temperature does not stay at the preset ROOM value. For this reason, the control system includes a function adjust-
ing the curve at three outside temperatures: -5°C, 0°C, +5°C. This function will allow you to increase or reduce the
supply line temperature, without affecting the heat curve, at three specific outdoor temperatures. If, for example, the
outside temperature is -5°C,the supply line temperature will change gradually in the outdoor temperature range of 0°C
to -10°C, maximum adjustment being reached at -5°C. The diagram below shows an adjusted CURVE -5. The point of
maximum adjustment is clearly visible.
As we have seen, you can choose to adjust the heat curve at three specified out- side air temperatures: -5°C,
0°C and +5°C. The supply line temperature can be changed by plus/minus 5 degrees.
If you wish to change a specific part of the heat curve:
1
Open
the
main
menu
INFORMATION by pressing the right- or left-hand button once.You will find the cursor at the
sub-menu OPERATION.
2 Press the ”down” button to move the cursor to the sub-menu HEAT CURVE.
3 Open the selected menu by pressing the right-hand button once. You will find the cursor at the parameter CURVE.
4 Using the ”up” or ”down” button, select either CURVE 5, CURVE 0 or CURVE -5.
5 Open the selected curve by pressing the right-hand button once.
6 Raise or lower the value, using respectively the ”up” or ”down” button. To return to the main menu, press the left-
hand button three times.
Change of the value for CURVE -5
CURVE
C
C
0
5
-5
24
32
40
48
56
64
18
34
0
Change of the value for CURVE +5
CURVE
C
C
0
5
-5
24
32
40
48
56
64
18
40
0
Change of the value for CURVE 0
CURVE
C
C
0
5
-5
24
32
40
48
56
64
18
45
0
Control
34
