Specifications

Control31
Adjustments to be made regularly
Adjustment of the CURVE value
The heat curve will be adjusted by the CURVE value. This value indicates the supply line temperatur e to the
radiators at 0°C outside temperature. At outside air tempe - ratur es lower than 0°C, the water sent to the radiators
will be warmer than 40°C.
At outside temperatur es higher than 0°C, the water will be colder than 40°C. When you incr ease the CURVE value,
the heat curve will become steeper and when you r educe it, it will become flatter .
This is the most ener gy and cost efficient way to set the indoor temperatur e and should ther efor e be used for long
term temperatur e settings. If you wish to make
a temporary change of temperature, you can simply change the ROOM value (see
”Adjustment of the ROOM value” on page 33).
Factory setting of CURVE value is 40°C, at an outside air temperatur e of 0°C. The value is adjustable between 22°C
and 56°C
If you wish to change the CURVE value:
1 Open the main menu INFORMA TION by pr essing the right- or the left-hand button once.
Y ou will find the cursor at the sub-menu named OPERA TION
2 Pr ess the ”down” button to move the cursor to the sub-menu called HEA T CURVE.
3 Pr ess the right-hand button once to open the menu. Y ou will find the cursor at the parameter CURVE
4 Open the selected parameter by pr essing the right-hand button once.
5 Incr ease or r educe the pr eset value using the ”up” or ”down” button. Y ou will see fr om the diagram
how the gradient of CURVE changes.
Pr ess the left-hand button thr ee times to r eturn to the main menu.
Change of value for CURVE
CURVE C
40
18
C
0
5 -5
24
32
40
48
56
64
18
Supply line
temperature
Heat curve
Relation of outside
air temperature to
supply line temperature
Outside air temperature
CURVE C
40
18
C
0
5 -5
24
32
40
48
56
64
18