14
described in previous point (not
recommended), or
- automatically, constantly correct
heating cycle temperature.
It is not recommended to use both these
possibilities at the same time.
Automatic correction of room temperature is
done according to formula:
Correction = (preset room temperature –
measured room temperature) x room
temperature factor / 10
Example.
Preset temperature in heating room (set in
Room Control) = 22 degrees C. Measured
temperature in room (using Room Control) =
20 degrees C. room temperature factor = 15
Preset mixer temperature will be increased
by (22 degrees C – 20 degrees C) x 15/10 =
3 degrees C. Correct value of parameter
must be found room temperature factor.
Scope: 0…50. The bigger value of factor the
bigger correction of preset boiler
temperature factor. When set on value “0”
preset mixer temperature is not corrected.
Attention: setting too high value of room
temperature factor may cause cyclic room
temperature fluctuations.
8.16 WEATHER CONTROL
Depending on measured outside
temperature, automatically controlled can be
either preset boiler temperature and mixer
cycles temperatures. By correct adjustment
of heating curve temperature of heating
circuits is counted automatically depending
on value of external temperature. Thanks to
that by choosing proper heating curve for
given building, room temperature remains
approximately the same – no matter what
outside temperature.
In case of connected room panel Room
Control set additionally room temperature
factor = 0
Guidelines for correct heating curve settings:
Floor heating 0,2 – 0,6
Radiator heating 1,0 – 1,6
Buffer 1,8 - 4
Pic. 8 Heating curves.
Tips for choosing proper heating curve:
If by falling outer temperature room
temperature is increasing, then value of
chosen heating curve is too big,
If by decreasing outer temperature, room
temperature is also decreasing, then value of
chosen heating curve is too low,
If by frosty weather room temperature is
appropriate and in warmer time is too low –
it is recommended to increase parameter
heating curve parallel shift and then choose
lower heating curve,
If by frosty weather room temperature is too
low and in warmer time too high – it is
recommended to reduce parameter heating
curve parallel shift and choose higher
heating curve.
Buildings which are poorly isolated require
setting heating curve with higher values, and
for better isolated buildings heating curve
will have lower value.
Preset temperature, counted according to
heating curve can be decreased or increased
by controller when it goes beyond scope of
limits of temperatures for given cycle.
8.17 NIGHT DECREASE SETTINGS
DESCRIPTION
Night time decreases for heating circuits,
HUW tank and circulation pump operation:
The intervals can be used to define time
periods at which lower preset temperature
may be set e.g. for a night time or when the
user is not at home (e.g. he/she left for a
work/school). This feature enables automatic
reduction of preset temperature without
compromising the heat comfort and reduces
fuel consumption. Decrease of preset boiler
temperature in selected time intervals is
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