7 Operating and display functions
16
Installation instructions 0020237057_01
7.7.7
Setting the target return temperature for the
"increase in return flow" circuit type
Menu
→
Installer level
→
System configuration
→
[
HEAT-
ING1
----]
→
Target return temp.
–
You can use this function to set the target return temper-
ature for the "increase in return flow" circuit type.
7.7.8
Setting the minimum cooling target flow
value
Menu
→
Installer level
→
System configuration
→
[
HEAT-
ING1
----]
→
Min. cool. fl. tgt temp.
–
If a heat pump is connected and the
Cooling possible
function is activated for the heating circuit, you can set
the minimum target flow value for the
Cooling possible
mode.
The system control regulates the heating circuit at the min-
imum cooling target flow value, even if the end user has set
a lower desired temperature for cooling.
7.7.9
Reading the current temperature
Menu
→
Installer level
→
System configuration
→
[
HEAT-
ING1
----]
→
Current temperature
–
You can use this function to read the current temperature
of the heating circuit.
7.7.10 Setting the excess temperature
Menu
→
Installer level
→
System configuration
→
[
HEAT-
ING1
----]
→
Excessive temp.
–
You can use this function to set the excess temperature.
The excess temperature increases the current set target
temperature of the heating circuit by the value that is set.
On mixer circuits with fixed mixing, this function means that
the set target temperature can be reached in pre-heat mode,
even though the temperature of the mixer circuit drops sub-
stantially.
The function also allows for an optimal control range for op-
erating the mixer valve. Stable operation is only possible if
the mixer valve only rarely has to move to the limit stop. This
ensures improved quality of control.
7.7.11 Setting the temperature threshold for
deactivating the heating circuit
Menu
→
Installer level
→
System configuration
→
[
HEAT-
ING1
----]
→
Max limit outs.temp.
–
You can use this function to set the temperature
threshold. If the outdoor temperature is greater than the
switch-off threshold set, the system control deactivates
heating mode.
7.7.12 Setting the minimum flow temperature for
the heating circuit
Menu
→
Installer level
→
System configuration
→
[
HEAT-
ING1
----]
→
Minimum temperature
–
You can use this function to specify a minimum value for
the flow temperature in heating mode for each heating
circuit; the control system will not fall below this value.
The system control compares the calculated flow tem-
perature with the value set for the minimum temperat-
ure and, if there is a difference, adjusts this to the higher
value.
7.7.13 Setting the maximum flow temperature for
the heating circuit
Menu
→
Installer level
→
System configuration
→
[
HEAT-
ING1
----]
→
Maximum temperature
–
You can use this function to specify a maximum value for
the flow temperature in heating mode for each heating
circuit; the control system will not exceed this value. The
system control compares the calculated flow temperature
with the value set for the maximum temperature and, if
there is a difference, adjusts to the lower value.
7.7.14 Specifying control behaviour outside time
periods
Menu
→
Installer level
→
System configuration
→
[
HEAT-
ING1
----]
→
Auto Off mode
–
This function enables you to specify, for each heating cir-
cuit separately, the system control functions in automatic
mode outside active time periods. Default setting:
Eco
You can select from two control behaviours, which you can
adapt further by using room temperature modulation.
If you have set the
Thermost.
value in the
Room temp.
mod.
function, the
Auto Off mode
function is ineffective.
The system control always brings the target room temperat-
ure to 5 °C.
–
Eco
: The operating mode
Auto Off mode
,
Auto
(outside
of the time period) and
off
are switched off. If a mixing
circuit is connected, the heating pump is switched off and
the heating circuit mixer is closed. The outdoor temper-
ature is monitored. If the outdoor temperature falls below
4 °C, the system control switches the heating function on
after the end of the frost protection delay time. The heat-
ing pump is activated. If a mixing circuit is connected,
the heating pump and the heating circuit mixer are activ-
ated. The system control regulates the target room tem-
perature at the set temperature
Set-back
. Despite the
heating function being switched on, the heat generator is
only active on demand. The heating function remains act-
ive until the outdoor temperature rises above 4 °C, after
which the system control switches the heating function off
again, but the outdoor temperature monitoring remains
active.
–
Set-back
: The heating function is switched on and the
target room temperature is maintained at the set
Set-
back
temperature.
7.7.15 Setting the heating curve
Menu
→
Installer level
→
System configuration
→
[
HEAT-
ING1
----]
→
Heating curve
–
If the heating curve setting is not sufficient to control the
living room climate according to the operator's wishes,
you can adapt the heating curve setting made during
installation.
If you activate the
Adaptive heat. curve
function, you must
always adjust the value for the heating curve to the heating
surface design.
