Vaillant sensoCOMFORT VRC 720/2 Manual De Uso E Instalación página 13

MENU → SETTINGS → Installer level → Installation configuration
→ MI:
Factory setting: 1 x circulation
The system control queries whether a signal is present at the heat pump's input. For example:
–
aroTHERM input: MI for the heat pump control module
–
flexoTHERM input: X41, terminal in the functional drawing
→ Heat generator 1
→ Heat pump 1
→ HP control module
→ Status:
→ Current flow temperature: °C
→ Circuit 1
→ Circuit type:
Factory setting: Heating
→ Status:
→ Target flow temperature: °C
→ Actual flow temperature: °C
→ Target return temperature: °C
→ OT switch-off threshold: °C
→ Target flow temp., desired: °C
→ Target flow temp., set-back: °C
→ Heat curve:
→ Min. target flow temperature:°C
→ Max. target flow temperature:°C
0020287900_01 sensoCOMFORT Operating and installation instructions
→ 1 x circula-
The end user has pressed the circulation button. The system control
tion activates the circulation pump for a short time period.
→ Photovoltaics
In the case of excessive current, a signal is present and the system con-
trol activates the Hot water boost function once. If the signal persists,
the buffer cylinder is charged to the flow temperature + buffer cylinder
offset until the signal at the heat pump drops off again.
→ Ext. cooling
The signal of an external control is used to switch between heating and
mode cooling. Prerequisite: Heat. + cool. off is selected in the ESCO: func-
tion.
–
MI contact closed = cooling
–
MI contact open = heating
→ Inactive
The heating circuit is not being used.
→ Heating
The heating circuit is being used to heat and is weather-compensated.
Depending on the basic system diagram, the heating circuit may be a
mixing circuit or a direct circuit.
→ Fixed value
The heating circuit is used for heating and is maintained at a fixed target
flow temperature.
→ DHW
The heating circuit is being used as a domestic hot water circuit for an
additional cylinder.
→ Increase in
The heating circuit is used for the increase in return. The increase in re-
return turn prevents an excessive temperature difference between the heat-
ing flow and return, and protects against corrosion in the floor-standing
boiler when the dew point is not reached for an extended period.
Select a temperature at which the heating water should flow back into the floor-standing
boiler.
Factory setting: 30 °C
Enter the upper limit for the outdoor temperature. If the outdoor temperature rises above the
set value, the system control deactivates heating mode.
Factory setting: 21 °C
Select the temperature for the fixed value circuit which applies within the time period.
Factory setting: 65 °C
Select the temperature for the fixed value circuit which applies outside of the time period.
Factory setting: 0 °C
The heat curve is the dependence of the flow temperature on the outdoor temperature for
the desired temperature (target room temperature). Detailed description of the heat curve
(→ Chapter 2.10)
Factory setting:
–
1.20 for a conventional heat generator
–
0.60 for a heat pump and/or mixed circuit
Enter the lower limit for the target flow temperature. The system control compares the set
value with the calculated target flow temperature, and regulates to the larger of these values.
Factory setting: 15 °C
Enter the upper limit for the target flow temperature. The system control compares the set
value with the calculated target flow temperature, and regulates to the smaller of these val-
ues.
Factory setting:
–
90 °C for a conventional heat generator
–
55 °C for a heat pump and/or mixed circuit
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