Setting The Boiler Water Temperature; Setting The Minimum System Temperature; Restoring Factory Settings - Viessmann VITOLIGNO 300-H Series Operating Instructions Manual

Setting the temperature unit (°C/°F)
7. to confirm.
d

Setting the boiler water temperature

In the delivered condition, the boiler water temperature
is set to 85 °C. The temperature of the boiler water is
regulated to the set value.
Press the following buttons:
1. for the "Extended menu".
å
2. / for "Boiler".
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Adjusting the set value for residual oxygen content
Only change this setting after consulting a heating con-
tractor. You can also have the set value adjusted by
your heating contractor.
In the delivered condition, the minimum set value is
8 %.
Press the following buttons:
1. for the "Extended menu".
å
2. / for "Boiler".
| ~

Setting the minimum system temperature

Set a value according to the minimum required tem-
perature for the heating system. When the temperature
falls below this value, the boiler or the additional heat
generator starts.
Press the following buttons:
1. for the "Extended menu".
å
2. / for "Boiler".
| ~

Restoring factory settings

You can individually restore all modified values for
each heating circuit to their factory setting.
Press the following buttons:
1. for the "Extended menu".
å
(cont.)
3. to confirm.
d
4. / for "Boiler water temp".
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5. to confirm.
d
6. / for the required temperature.
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7. to confirm.
d
3. to confirm.
d
4. / for "Flue gas residual O2".
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5. to confirm.
d
6. / for the required value.
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7. to confirm.
d
3. to confirm.
d
4. / for "Min set system temp".
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5. to confirm.
d
6. / for the required temperature.
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7. to confirm.
d
2. / for "Settings".
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3. to confirm.
d
4. / for "Standard setting".
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Further adjustments
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