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Vaillant VRC 720f/3 User Manual

Vaillant VRC 720f/3
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8 Operating and installation instructions 0020288151_04
2.12 Setting the heat curve
A
B
15 10 5 0 -5 -10 -15 -20
20
30
40
50
60
70
80
90
1.2
1.5
1.822.533.54
0.8
1.0
0.4
0.2
0.1
0.6
A Outside temperature °C B Target flow 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.
A
B
CD
18
22
20
0.4
70
60
50
40
30
15 10 5 0 -5 -10 -15 -20
A Outdoor temperature °C
B Target flow temperature
°C
C Target room temperat-
ure °C
D Axis a
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.
2.13 Display, control elements and symbols
ĮİŰ
ĬĪƀ
ĬįŀĪ
ƀ
īĬƀ
2.13.1 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
Calling up help
Calling up the time programme assistant
Switching on the display
Switching off the display
The control element is located on the upper side of
the control.
Active control elements light up green.
Press once: You access the basic display.
Press twice: You access the menu.
2.13.2 Symbols
Battery state of charge
Signal strength
Time-controlled heating active
Maintenance required
Fault in the heating installation
Contact the competent person
Noise reduction mode active
Most energy-efficient heating mode active

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Vaillant VRC 720f/3 Specifications

General IconGeneral
BrandVaillant
ModelVRC 720f/3
CategoryControl Unit
LanguageEnglish

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