5.4.5
Adjusting the controller behaviour
Control
Hyst control
Pd control
END
Amplitude
0.2
o
C
Period
10
Hysteresis
0.3
o
C
Offset
0.3
o
C
Set with buttons
or
:
0.2°C ... 5.0°C
5 ... 30
0.1°C ... 0.2°C
END
or autom.
after 6 sec.
OK
OK
OK
OK
OK
OK
OK
OK
back to
Service
see 5.4.1
Set with buttons
or
:
0.2°C ... 1.0°C
5.4.3
Selecting the language
5.4.4
Setting the wall compensation
In case of unfavourable conditions at the installation site (installation
at the exterior wall, chimney, etc.), there may be deviations in temper-
ature between the temperature measured by the thermostat and the
actual room temperature. This difference in temperature can be com-
pensated with the wall compensation by setting an offset value.
Example:
The difference between the measured and the controlled
temperature is 2°C, i.e. the room temperature is regulated 2°C too
high: Offset value -2°C.
5
Language
Francais
English
Deutsch
NL
Espanol
Italiano
Select the language with the buttons
or
.
Confirm with the
OK
button. Cancel with
ESC
.
OK
back to
Service
see 5.4.1
OK
Wall comp
Wall comp
0.0
o
C
Offset value adjustable from -3°C ... +3°C.
Setting with
or
. Confirm the value with
OK
.
Cancel with
ESC
.
OK
OK
back to
see 5.4.1
5 … 30
0.1 °C ...0.2 °C
Set with buttons
▲
or
▼
:
0.2 °C ...5.0 °C
back to
or autom.
after 6 sec.
see 5.4.1
5.4.3
Selecting the language
Select the language with the buttons
▲
or
▼
. Confirm with the
OK
but-
ton. Cancel with
ESC
.
5.4.4
Setting the wall compensation
In case of unfavourable conditions at the installation site (installation at
the exterior wall, chimney, etc.), there may be deviations in temperature
between the temperature measured by the thermostat and the actual room
temperature. This difference in temperature can be compensated with the
wall compensation by setting an offset value.
Example:
The difference between the measured and the controlled tempe-
rature is 2 °C, i.e. the room temperature is regulated 2 °C too high:
Offset value –2 °C.
Offset value adjustable from –3 °C ... +3 °C. Setting with
▲
or
▼
.
Confirm the value with
OK
. Cancel with
ESC.
5.4.5 Adjusting the controller behaviour
With suitable heating systems the PD controller is characterized by a
short setting time, scarce maximum overshooting and therefore a high
control accuracy.
With over or under engineered heating systems a hysteresis controller
is characterized by scarce shift frequency and small temperature devia-
tions.
Characteristics of the PD controller
Characteristics of a hysteresis controller
Set with buttons
▲
or
▼
:
0.2 °C ...1.0 °C
34
ENGLISH
