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23a
Room temperature influence -
line 3
This section is only relevant if you have installed a room sensor or
ECA 60 / ECA 61 / ECA 62 / ECA 63.
1
1
2
ON
ON
3
Min.
0
influence
3
Room temperature influence
Circuit
Setting range
I
0 ... 99 / -99 ... 0
The bar below the min. value blinks. Adjust the
min. influence.
Select the max. influence.
The bar below the max. value blinks.
Adjust the max. influence.
There are two basic principles for control of the room
temperature influence:
A: Max. room temperature limitation
Use this limitation if your heating system is fully equipped
with radiator thermostats and you also want to obtain a max.
limitation of the room temperature. The controller will allow
for free heat gains, i.e. solar radiation or heat from a fire place,
etc.
Influence
Desired room
temperature
Max.
limitation
The max. influence determines how much the room
temperature should influence the desired flow temperature.
Example
The actual room temperature is 2 degrees too high.
The influence at max. limitation (right corner of the display) is
set to -40.
The influence at min. limitation (left corner of the display) is set
to 0.
Heat curve H is 1.8.
Result:
The desired flow temperature is changed by
2 x -40 x 1.8 x 0.1 = -14.4 degrees.
The grey
side of the
ECL Card
3
ON
Max.
-4
0
influence
Factory setting
min. 0, max. -40
Room
temperature
B: Reference room temperature control
Used if your heating system is not equipped with radiator
thermostats and you select the room with room sensor as a
temperature reference for the rest of the rooms.
(However, should you have a few radiator thermostats
installed, make sure that they are fully open).
Set a positive value for the min. influence and a negative
value for the max. influence.
Influence
Min. limitation
Max. limitation
The room sensor in the reference room registers the
difference between the desired and the actual room
temperature. The desired flow temperature will be corrected
to eliminate this difference.
Example 1
The actual room temperature is 2 degrees too low.
The influence at max. limitation (right corner of the display) is
set to -35.
The influence at min. limitation (left corner of the display) is set
to 20.
Heat curve H is 1.8.
Result:
The desired flow temperature is changed by
2 x 20 x 1.8 x 0.1 = 7.2 degrees.
Example 2
The actual room temperature is 2 degrees too high.
The influence at max. limitation (right corner of the display) is
set to -35.
The influence at min. limitation (left corner of the display) is set
to 20.
Heat curve H is 1.8.
Result:
The desired flow temperature is changed by
2 x (-35) x 1.8 x 0.1 = -12.6 degrees.
23b
Desired room
temperature
Room
temperature
The grey
side of the
ECL Card
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