Heating Water Buffer Cylin-Setting An Operating Program; Der Setting A Time Program - Viessmann VITOLIGNO 300-C Operating Instructions Manual

Setting an operating program
There are 3 operating programs available for control-
ling the heating water temperatures in the heating
water buffer cylinder:
■ "Automatic"
In automatic mode, the average set temperature of
the heating water buffer cylinder is determined auto-
matically via the selected heating curve of the buffer.
A set value is determined subject to the outside tem-
perature and the selected values for level and slope.
■ "Manual"
In manual mode, you can specify a fixed value for
the average set temperature of the heating water
buffer cylinder. You can enter this set value in the
"Buffer" menu when manual mode is selected. For
a description, see page 29.
"Off"
■
In this operating program, the heating water buffer
cylinder is heated by the boiler. However, the tem-
peratures of the heating water buffer cylinder have
no influence on boiler operation.
Press the following keys to set the operating program:
1. for the "Extended menu"
å
2. / for "Buffer"
| ~
3. to confirm.
d
Setting a time program
You can set these heating times by adjusting the time
program for the heating water buffer cylinder. During
the set time phases, the charging condition of the heat-
ing water buffer cylinder has an effect on the boiler
operation.
Note
If you are using a solar thermal system for central
heating backup, balance the charging times of the
heating water buffer cylinder with the control unit of the
solar thermal system.
The time program for the heating water buffer cylin-
■
der is made up of time phases. A time phase from
06:00 to 22:00 h every day is set at the factory.
■ The time program for the heating water buffer cylin-
der is preset to Automatic mode at the factory. In
automatic mode, the time program for the heating
water buffer cylinder is disregarded.
■ If you don't require automatic mode, you can select
up to 4 individual time phases per day. For each
time phase you set the start and end points.
■ In the "Extended menu", you can call up the current
time program under "Information" (see page 39).
Heating water buffer cylinder
4. / for "Operating program"
| ~
5. to confirm.
d
6. / for "Automatic system", "Manual" or
| ~
"Off".
7. to confirm.
d
Enter the average set temperature of the heating water
buffer cylinder in manual mode:
1. for the "Extended menu"
å
2. / for "Buffer"
| ~
3. to confirm.
d
4. / for "Set temp man mode".
| ~
This menu point is only available when man-
ual mode is selected.
5. to confirm.
d
6. / for the required temperature.
| ~
7. to confirm.
d
Time prog Buffer
Automatic
Individual
Select with
Fig. 28
Settings in the extended menu:
1. for the "Extended menu".
å
2. / for "Buffer"
| ~
3. to confirm.
d
4. / for "Time program"
| ~
5. to confirm.
d
6. / for "Individual"
| ~
29