Vaillant VRC 430f, Operating And Installation Manual

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7 Operating instructions VRC 430f 0020042470_01
4 Operation
h
Note!
Ask the heating engineer to explain how to use
the unit after it has been installed. This will
prevent involuntary changes to the settings.
4.1 Overview operating and display front
Th. 12.01.06
11:46
3.0 °C Outside
Auto
19.0 °C
VRC 430f
2 3
1
Fig. 4.1 Overview of the operating and display front
(example: default display)
Key
1 Display (screen)
2 Operating element, right-hand dial
3 Operating element, left-hand dial
Fig. 4.1 shows the default display. The following
information can be obtained from the default display:
– the operating mode (automatic, manual or off) of the
heating circuit 1
– the current room temperature
The default display is described in detail in Section 4.3.3.
The functions of both dials are described in Section 4.3.
h
Note!
The screen is usually switched off to save ener-
gy. This increases the service life of the batter-
ies.
The display and lighting are activated as soon
as you turn or click one of the dials. If the ap-
pliance is not used for more than one minute
the screen returns to the basic display returns
and switches off after approx. 10 minutes.
Note!
When the dial is turned the values to be dis-
played must first be called up by the radio re-
ceiver unit. Until these values are obtained only
dashes instead of values will be displayed (--).
This generally takes up to two seconds.
Depending on the surrrounding conditions it
may take up to 15 minutes for the radio receiv-
er to call up and display the latest data (e.g.
outside temperature, time with integrated
CDCF 77 radio signal receiver).
If dashes (--) are displayed continuously, con-
sult your heating engineer.
Operation 4