Page GB-34
This parameter determines to what extent a deviation of the
room temperature from the specified setvalue has an influence
on the control of the heat generator temperature.
If there is no difference between desired (SET) and actual (ACT)
room temperature, the flow temperature of the heating circuit is
controlled in accordance with the adjusted heating curve.
Should the room temperature deviate from the adjusted setvalue,
the heating characteristic is adjusted on the room temperature
axis in such a way, that the control deviation is compensated. The
size of this displacement thereby depends on the setting of the
room effect.
The following relation applies:
with
Room set
corr
= corrected new room setvalue
Room set
nom
= adjusted room setvalue
Room set
corr
= Room set
nom
-
(
Deviation x Room factor
)
RRCC
PPAARRAAMMEETTEERR 0044
Parameter 4 - Room factor
Setting range: OFF, 1. . . 500 %, RC
Factory setting: RC
HHCC
Example:
adjusted room setvalue = 21 °C
actual room temperature = 20 °C
The deviation resulting from this is therefore — 1 K.
The following applies with room factor 100 %:
Room set
corr
= 21 °C -
(
-1K x 100
)
= 22 °C
100
The boiler temperature is controlled in accordance to a heating
characteristic, which complies with a specified room temperature
of 22 °C.
Setting OFF: completely dependent on the weather condi-
tions without correcting the room
setvalue
Setting RC: solely controlled by room temperature without
any influence of the outside temperature
Important note: High settings reduce the stability of the control
circuit and may lead to the roomtemperature
swaying. The setting should be adapted to the
conditions of the room.
next parameter
100
GB
8A521100_GB.qxd 10.11.2004 12:05 Seite 34
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