Viessmann VITODENS - Selecting the Minimum Set Supply Air Temperature for Ventilation with out Heat Recovery

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5. OK to confirm
Selecting the set room temperature for ventilation without heat recovery
Factory setting: 20 °C
As soon as the room temperature exceeds the selec-
ted set value by more than 1 °C, ventilation continues
without heat recovery.
Note
To ensure correct heat recovery functionality, select a
set value that is at most 4 °C lower than the set room
temperature for central heating.
Not for Vitovent 300-C and 300-W.
Tap the following on-screen buttons:
1. "Menu"/" "
2. "Ventilation"
3. "Set room temperature"
4. / for the required value
5. OK/ to confirm
Selecting the minimum set supply air temperature for ventilation without heat recov-
ery
Factory setting: 16 °C
As soon as the supply air temperature exceeds the
selected set value, ventilation continues without heat
recovery.
Note
The lower the setting for this temperature, the higher
the risk of condensate formation on the outside of the
ductwork. This condensate build-up can cause dam-
age to the building.
Not for Vitovent 300-C and 300-W.
Tap the following on-screen buttons:
1. "Menu"/" "
2. "Ventilation"
3. "Min. supply air temp. Bypass "
4. / for the required value
5. OK/ to confirm
Cleaning or replacing the filters
Replace filters if one of the following conditions
applies:
■
"Check filter(s)" is shown in the standard menu for
ventilation.
or
■
The last filter change was more than 1 year ago
Note
The number of days remaining before the next filter
change can be called up from the extended menu
under "Information".
If the ventilation unit has several filters, they should
always be cleaned or replaced together.
Confirm on the control unit that filters have been
replaced or cleaned.
Tap the following on-screen buttons:
1. "Menu"/" "
2. "Ventilation"
3. "Filter change "
4. OK/ to confirm
The counter is reset to 365 days.
Setting intensive mode
The increased ventilation intensity remains active for 2
hours. After this, operation continues with the ventila-
tion level that is active in the operating program.
Tap the following on-screen buttons:
1. "Menu"/" "
Mechanical ventilation
"Holiday program" energy saving function (cont.)
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