Danfoss DHP-AL User Manual page 10

Supply temperature
Figure 5: Increasing or reducing the CURVE changes the slope of the curve
If you increase the CURVE value, the heat curve will become steeper and when you reduce it,
it will become flatter.
The most energy efficient and cost effective setting is achieved by changing the CURVE value
to adjust the temperature in the house to an even and constant temperature. For a tempo-
rary increase or reduction, adjust the ROOM value instead.
ROOM
If you wish to increase or reduce the indoor temperature, change the ROOM value. The differ-
ence between changing the ROOM value and the CURVE value is that the system's heat curve
does not become steeper or flatter if the ROOM value is changed, which the curve becomes
if the CURVE value changes, 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° is that an approximate 3°
increase in supply temperature is needed to increase the indoor temperature 1°.
Supply temperature
Figure 6: Changing the ROOM value changes the heat curve upwards or downwards .
Danfoss – 10 VUBMF102
Maximum supply tem-
perature
Outdoor temperature
Maximum supply
temperature
Outdoor temperature