19
Heating
type
HVAC base
point
HVAC end
point
P -adjust-
ment/
reduction
Frost
line
90 / 70
system
30 °C
85 °C
15 °C
3 °C
70 / 50
system
25 °C
75 °C
15 °C
3 °C
40 / 30
system
25 °C
45 °C
15 °C
3 °C
Changing the heating curve temporarily
In case of an offset of the desired room set temperature, a
corresponding offset for the flow set temperature will be
calculated. The set offset determines by which value the flow
set temperature will be offset per degree from the room set
temperature of 21 °C.
Example
At an outside temperature of – 5 °C, a flow set temperature
of e.g. 50 °C will be calculated for the settings of base point
and end point, in order to reach the room set temperature
(reference temperature) of
21 °C. However, if the desired
room set temperature is at 19 °C, at a set offset of 10 K/°C,
a flow set temperature of
flow set temperature = 50 °C – (21 °C–19 °C) x 10 K/°C =
50 °C – 20 K = 30 °C
will be calculated.
Switching off the heating (heating off at)
With weather-dependent control, you can program the
controller so that the heating switches off at a set outdoor
temperature.
