HEATING CURVE
OFFSET, HEAT CURVE
FLOW TEMPERATURE
OUTDOOR TEMPERATURE
HEATING CURVE
HEATING CURVE OFFSET
OUTDOOR TEMPERATURE
FLOW TEMPERATURE
HEATING CURVE
HEATING CURVE OFFSET
OUTDOOR TEMPERATURE
FLOW TEMPERATURE
Room temperature
Basic values for the automatic heating control
The association between the outdoor temperature and the
flow temperature is set using the “Heating curve selection”
(37) and “Increase/reduce heat” buttons (38).
The design flow temperature and the design outdoor
temperature are used as the input data in the adjoining
diagrams to read the curve slope, which is set using the
“Heating curve selection” knob.
The setting on the “Increase/reduce heat” knob determines
at which outdoor temperature heating should stop. If the
offset is set to 0 this means heating stops at the outdoor
temperature of +20°C. As you normally have a degree of
free heating a value below zero can be set with this knob.
The adjoining diagram shows the curve at offsets - 2, ± 0
and + 2. The default setting from the factory is curve 10
on “Heating curve selection” and offset - 2 on “Increase/
reduce heat”.
In those cases where the heating system’s design flow
temperature is not known the map below can be used as a
guide for setting “Heating curve selection”.
The first figure applies to a radiator system and the figure
in brackets applies to floor heating installed in a concrete
floor structure where the max flow temperature is 35°C.
When the floor heating system is installed in a wooden
floor structure you can start with the figure before brackets
and reduce this value by two units.
A suitable setting on the “Increase/reduce heat” knob is - 2
for radiator systems and -1 for floor heating.
Diagram with offset - 2
Diagram with offset + 2
Diagram with offset 0
Ventilation
During installation / adjustment, select continuous ventila-
tion or reduced ventilation for when the compressor is not
running. The function for the two alternatives is as follows:
Continuous ventilation. Normal ventilation in the 1.
house regardless of whether the compressor is running
or not. Ventilation can be increased temporarily via the
"Ventilation" button on the front panel.
Varied ventilation. When the compressor is not run-2.
ning, ventilation is maintained at a relatively low level
in the house, this is known as basic ventilation. When
the compressor starts rotating, the fan starts rotating
to achieve a higher level of ventilation, known as nor-
mal ventilation. Ventilation can be increased temporar-
ily via the "Ventilation" button on the front panel.