Shutting Down The Heating System For An Extended Period; Shutdown - Viessmann VITOLIGNO 300-C Operating Instructions Manual

Vitoligno 300-C Operating
Scanning Information
Calling up temperatures
You can scan temperatures in the standard menu and
in the extended menu. The range of displayed values
is wider in the extended menu. We therefore recommend
calling up temperatures via the extended menu.
Calling up temperatures in the standard menu
Press the following keys:
1. / for "Information"
| ~
2. d to confirm.
3. / for "Outdoor temperature", "Heating" or "DHW".
| ~
The overview below shows the temperatures displayed in
the "Heating" and "DHW" submenus.
"Heating" sub-menu:
Set supply temperature

Actual supply temperature

"DHW" sub-menu:
Set DHW temperature

Actual DHW temperature

Set return temperature

Actual return temperature

Scanning the heating water buffer tank temperatures
in the standard menu
Press the following keys:
1. / for "Buffer"
| ~
2. d to confirm.
3. / to display the required temperature
| ~
The following temperatures can be called up in the
"Buffer" menu:
Set buffer

Buffer average

Buffer sensors


Shutting Down the Heating System for an Extended Period

Shutdown

1. Switch off the boiler by pressing "START/STOP"
on the control unit.
2. Wait until the run-on time has passed and let the
boiler cool down.
(continued)
Calling up temperatures in the extended menu
Press the following keys:
1. for "Extended menu".
2. / for "Information"
| ~
3. d to confirm.
4. / for "General", "Boiler", "Heating" or "DHW".
| ~
The following overviews show the temperatures
displayed in the sub-menus.
5. d to confirm.
Temperatures in "General" sub-menu:
Outdoor temperature

Set system temperature

Temperatures in "Boiler" sub-menu:
Boiler water temperature

Boiler return

Flue gas temperature

Temperatures in "Heating" sub-menu:
Set room temperature

Set reduced room temperature

Set supply temperature

Actual supply temperature

Temperature in "DHW" sub-menu:
Set DHW temperature

Actual DHW temperature

Set return temperature

Actual return temperature

You can switch your heating system off if you do not intend
to use it. We recommend you contact your heating contractor
before and after shutting down for longer periods.
Your heating contractor can then take suitable steps,
such as frost protection for the system or heating surface
preservation, as required.
Note: No special measures are required when shutting
down the system on a temporary basis.
3. Perform all work described in the overview of chapter
"Maintenance" starting on page 44.
4. When there is a risk of frost, drain the boiler,
observing the instructions issued by your heating
system installer or ask them to charge the system
with antifreeze.
Scanning
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