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19.1.1.2. Display
19.1.1.3. Operating instructions
19.1.2. Analog operating elements
19.1.2.1. Buttons and displays for selecting the operating mode
19.1.2.2. Heating curve
19.1.2.3. Setting knob for room temperature readjustments
19.1.2.4. Buttons and displays for manual operation
Siemens Building Technologies
Landis & Staefa Division
1
2
9
1
Display of fault status messages
2
Display of "Holiday program active"
3
Display of "ECO function active"
4
Display of "Bus power supply available"
5
Cursor for Info button (display of temperatures)
The operating instructions are inserted in a holder at the rear of the cover. When in their
proper place, the list of operating lines that can be selected by the end-user is visible.
The operating instructions are designed for use by janitors and end-users. They also
contain tips on heat energy savings and plant fault tracing.
For the selection of the operating mode there are four buttons available. The required
operating mode is activated by pressing the respective button. Each button has an inte-
grated LED. The currently active operating mode is indicated by the respective LED.
For the direct setting of the heating curve, the little bar is used, which has proved its
worth over many years. The slider on the left is used to set the required flow tempera-
ture at an outside temperature of 15 °C, the slider on the right to set it at –5 °C.
The link between the two sliders represents the heating curve.
The heating curve can also be set via the operating lines. In that case, the bar is inac-
tive.
A setting knob is used for manual room temperature readjustments. Its scale gives the
room temperature change in °C.
By turning the setting knob, the heating curve is displaced parallel (functionally), but the
bar maintains its position.
Three buttons are available for manual operation:
•
One button for the activation of manual operation. An LED indicates manual opera-
tion. Manual operation is quit by pressing the same button again or by pressing any of
the operating mode buttons
Basic Documentation RVL470
Handling
3
4
8
6
Display of temperatures, times, etc.
7
Display of current heating program
8
Display of operational level
9
Display of current operating line number
5
7
CE1P2522E / 30.03.2000
6
61/68
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