Plum ecomaxx 800 R2, Assembly And Service Manual

Page: 14 / 48

14
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.
7.16 Weather control
Weather control may be activated for both,
boiler and mixer circuits. Once the heating
curve has been properly selected, preset
boiler or mixer temperature is automatically
computed on the basis of ambient
temperature. Owing to this feature, if the
heating curve is properly selected for the
given building, in-door temperature will
remain constant irrespective of the out-door
temperature. Therefore, proper selection of
heating curve is essential.
Note:
when identifying the heating curve -
eliminate influence of room thermostat on
regulator operation (irrespective whether
room thermostat is connected or not) by
setting the parameter:
For mixer circuit: MENU
→
Mixer
Settings
→
Room thermostat
→
Reduce preset mixer temperature to
thermostat
= 0.
For boiler circuit: MENU
→
Boiler
Settings
→
Room thermostat
→
Reduce preset mixer temperature to
thermostat
= 0.
In case of connected ecoSTER200 room
control panel - additionally, set the
parameter:
Room temperature coefficient =
0.
Guidelines for proper settings
of heating curve :
- underfloor heating 0.2 -0.6
- radiator heating 1.0 - 1.6
- boiler 1.8 - 4
Fig. 10 Heating curves; temperature set using weather
control vs. out-door temperature
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.
7.17 Description of night time decrease
settings
The regulator offers possibility to select the
time intervals for boiler, heating circuits,
HUW container and HUW circulating pump, 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 work).