Changing The Heating Curve - Viessmann VITOLIGNO 300-C Operating Instructions Manual

Central heating
Setting a time program
Deleting time phases
Press the following keys if you want to delete a time
phase:
1. Proceed as described in points 1 to 11 of chapter
"Setting switching times".
2. until the end point of the selected time phase
d
is displayed.
3. / until, for the end point, "- - : - -" is displayed.
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Note
"- - : - -" appears if the start and end time are
the same.
Heating Mo-Fr
0 2 4 6 8 10 12 14 16 18 20 22 24
- -:- - - - -:- -
?
- -:- - - - -:- -
§
Adopt with
Fig. 17
4. to confirm.
d
5. until the default display is shown.
ä

Changing the heating curve

■ If the room temperature does not meet your require-
ments for a prolonged period of time you can alter
the heating characteristics.
■ You influence the heating characteristics by chang-
ing the slope and level of the heating curve. For
more information regarding the heating curve, see
page 21.
Please observe the modified heating characteristics
■
over several days (if possible, wait for a major
change in the weather) before making further adjust-
ments.
Changing slope and level
For assistance, use the following table.
Heating characteristics
The living space is too cold during
winter.
The living space is too hot during
winter.
20
(cont.)
HC1
Std
u
Std
u
OK
Measure
Adjust the heating curve slope to the next
highest value (e.g. 1.5).
Adjust the heating curve slope to the next
lowest value (e.g. 1.3).
Restoring time phases to their factory settings
If you want to restore all time phases to their factory
settings, press the following keys:
1. for the "Extended menu".
å
2. / to select "Settings"
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3. to confirm.
d
4. / for "Standard setting".
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5. to confirm.
d
6. / for "Heating".
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7. to confirm.
d
8. / to select "Heating circuit 1" (HC1), "Heat-
Ù Ú
ing circuit 2" (HC2) or "Heating circuit 3"
(HC3).
9. / to select "Yes".
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10. to confirm.
d
11. until the default display is shown.
ä
Example
Slope 1.5
Level 0 K
Slope 1.3
Level 0 K