& '
'
( & '
& )
) '
* +
,
-
&
*
)
Fig. 6: Graph showing the set value 40 for CURVE.
1. Supply temperature (°C)
2. Maximum supply temperature
3. Outdoor temperature (°C)
4. 0°C
5. Value for CURVE is 40°C
In the event of outdoor temperatures below 0°C, a higher setpoint value is calculated and in the event of outdoor temperatures greater
than 0°C, a lower setpoint value is calculated.
& '
'
( & '
& )
) '
* +
&
,
-
Fig. 7: Increasing or reducing the CURVE changes the slope of the curve.
1. Supply temperature (°C)
2. Maximum supply temperature
3. Outdoor temperature (°C)
If the CURVE value is increased, the heat curve will become steeper and if the value is reduced, it will become flatter.
7.3
ROOM
If you wish to temporarily increase or reduce the indoor temperature, change the ROOM value. The difference between changing the
ROOM value and the CURVE value is as follows:
When changing the ROOM value, the angle of the curve on the system's heat curve does not change, instead the entire heat curve is
moved by 3°C for every degree change of the ROOM value.
The reason that the curve is adjusted 3°C is that an approximate 3°C increase in supply temperature is usually needed to increase the
indoor temperature 1°C.
Commissioning
VIGFH102
Danfoss Heating Solutions
24
