Setting The Heat Curve; Display, Control Elements And Symbols - Vaillant sensoCOMFORT VRC 720 Manual De Uso E Instalación

2 Product description
2.10

Setting the heat curve

B
4
90
80
70
60
50
40
30
20
15 10 5
A Outside temperature °C
The figure shows the possible heat curves of 0.1 to 4.0 for a
target room temperature of 20 °C. If, for example, heat curve
0.4 is selected, a flow temperature of 40 °C is maintained at
an outdoor temperature of -15 °C.
B
70
60
50
40
30
22
15 10 5
20
C D
18
A Outdoor temperature °C
B Target flow temperature
°C
If the heat curve 0.4 is selected and 21 °C is specified for the
target room temperature, the heat curve is then translated,
as shown in the figure. The heat curve is displaced accord-
ing to the value of the target room temperature along axis a
which is angled at 45°. At an outdoor temperature of -15 °C,
the control system provides a flow temperature of 45 °C.
4
3.5 3 2.5 2 1.8
0 -5 -10 -15 -20
B Target flow temperature
°C
0 -5 -10 -15 -20
C Target room temperat-
ure °C
D Axis a
2.11

Display, control elements and symbols

1.5
1.2
1.0
0.8
0.6
0.4
0.2
0.1
A
2.11.1 Control elements
–
Calling up the menu
–
Back to the main menu
–
Confirming a selection/change
–
Saving set values
–
One level back
–
Cancelling input
–
Navigating through the menu structure
–
Reducing or increasing the set value
–
Navigating to individual numbers/letters
0.4
A
–
Calling up help
–
Calling up the time programme assistant
Active control elements light up green.
Press once: You access the basic display.
Press twice: You access the menu.
2.11.2 Symbols
Time-controlled heating active
Button lock active
Maintenance required
Fault in the heating installation
Contact the competent person
Noise reduction mode active
Most energy-efficient heating mode active
Operating and installation instructions sensoCOMFORT 0020287900_00