15
In this configuration room thermostat
ecoSTER is able to:
reduce temperature of heating cycle by a
constant value, when preset temperature in
a room will be reached. Similarly like it was
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 temperaturę 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
ecoSTER200) = 22 degrees C. Measured
temperature in room (using ecoSTER200) =
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.
8.17
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.
Attention:
in the proces of experimental
adjustement of proper heating curve it is
necessary to exlude influence of room
thermostat on controller work (irrespectively
if room thermostat is connected or not), by
adjusting parameter:
For mixer cycle:
Mixer settings 1 – Mixer
room thermostrat
= 0
In
case
of
connected
room
panel
ecoSTER200
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. 9 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.
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