Operating and display functions 8
11
8.5
Heat exchanger 1
8.5.1
Reading the status
Menu
→
Installer level
→
System configuration
[
Heat gen-
erator 1
----]
→
Status
–
You can use this function to read which requirement the
controller reports to the heat generator.
Off
: The controller does not report any energy requirement.
Heat. mode
: The controller reports a heat demand for the
heating mode.
Cooling
: The controller reports a cooling demand.
DHW
: The controller reports a heat demand for the hot water
generation.
8.5.2
Reading the heat generator's current flow
temperature
Menu
→
Installer level
→
System configuration
[
Heat gen-
erator 1
----]
→
Current flow temp.
–
You can use this function to read the current flow temper-
ature for the heat generator.
8.6
HEATING 1
You can use the heating circuit for various functions (heating
circuit, pool circuit, fixed value circuit, etc.). The display only
shows the functions that you require when using the heating
circuit. You can use the overview to see which functions you
can set or read for your configuration.
Functions for the heating circuit (
→
Page 23)
8.6.1
Setting the type of circuit
Menu
→
Installer level
→
System configuration
→
[
HEAT-
ING1
----]
→
Type of circuit
–
You can use this function to define the functions that the
heating circuit is to have.
The first heating circuit in the system has
Heating
as its de-
fault setting. All other heating circuits have
Inactive
as their
default setting, which they may have to activate.
Inactive
: The heating circuit is not being used.
Heating
: The heating circuit is being used to heat and is
weather-controlled. Depending on the system diagram, the
heating circuit may be a mixer circuit or a direct circuit.
Pool
: The heating circuit is being used as a pool circuit.
You can connect the external pool controller to the DEM1
to DEMx input on the
VR 70
or
VR 71
. If the terminals at the
input have short-circuited, there is no heat demand. If the
terminals at the input are open, there is a heat demand.
Fixed value
: The heating circuit is maintained at two fixed
target flow temperatures. The heating circuit can be switched
between two target flow temperatures.
Ret.fl.incr.
: The heating circuit is used for the increase in
return flow. The increase in return flow is used to protect
against corrosion in the floor-standing boiler as a result of
falling below the dew point for an extended period.
DHW
: The heating circuit is being used as a hot water circuit
for an additional cylinder.
Depending on the
Type of circuit
that is selected, only the
corresponding functions appear on the display as list entries.
8.6.2
Reading the status of the heating circuit
Menu
→
Installer level
→
System configuration
→
[
HEAT-
ING1
----]
→
Status
–
You can use this function to read the operating mode for
HEATING 1
.
Off
: The heating circuit does not report any energy require-
ment.
Heat. mode
: The heating circuit is in heating mode.
Cooling
: The heating circuit is in cooling mode.
DHW
: The heating circuit is in heating mode for the hot water
in the cylinder.
8.6.3
Reading the heating circuit's target flow
temperature
Menu
→
Installer level
→
System configuration
→
[
HEAT-
ING1
----]
→
Target flow temp.
–
You can use this function to read the target flow temper-
ature for the heating circuit.
8.6.4
Reading the target flow temperature of the
pool circuit
Menu
→
Installer level
→
System configuration
→
[
HEAT-
ING1
----]
→
Target flow temperature pool
–
You can use this function to read the target flow temper-
ature of the pool circuit.
8.6.5
Setting the day target flow temperature for
the pool circuit or fixed value circuit
Menu
→
Installer level
→
System configuration
→
[
HEAT-
ING1
----]
→
Target flow temp.: Day
–
You can use this function to set the target flow temper-
ature for the pool circuit or fixed value circuit for the day
(within a time period).
8.6.6
Setting the set-back target flow temperature
for the pool circuit or fixed value circuit
Menu
→
Installer level
→
System configuration
→
[
HEAT-
ING1
----]
→
T.fl.temp.: Set-back
–
You can use this function to set the target flow temperat-
ure for the pool circuit or fixed value circuit for the night
(outside of the time period).
8.6.7
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.
8.6.8
Setting the minimum cooling flow target
value
Menu
→
Installer level
→
System configuration
→
[
HEAT-
ING1
----]
→
Min. cooling flow target value
–
If a heat pump is connected and the
Cooling
function is
activated for the heating circuit, you can set the target
flow value for the
Cooling
function.
0020200781_01
VR
C
700/2
Installation instructions
