Diagnosis; Scanning Operating Data - Viessmann VITODENS 200-W Service Instructions Manual

Diagnosis and service scans

Diagnosis

Scanning operating data

■ Weather-compensated control unit:
Operating data can be scanned in six areas. See "Diagnosis" in the service menu
overview.
Operating data on heating circuits with mixers and solar can only be scanned if the
components are installed in the system.
For further information on operating data, see chapter "Brief scan".
■ Constant temperature control unit:
Operating data can be scanned in the "i" menu.
Operating instructions
For further information on operating data, see chapter "Brief scan".
Note
"- - -" appears on the display if a sensor that has been scanned is faulty.
Calling up operating data
Weather-compensated control unit
1. Press OK and å simultaneously
for approx. 4 s.
2. "Diagnosis"
Resetting operating data
Saved operating data (e.g. hours run) can be reset to 0.
The value "Adjusted outside temp" is reset to the actual value.
Weather-compensated control unit
1. Press OK and å simultaneously
for approx. 4 s.
2. "Diagnosis"
3. "Reset data"
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3. Select required group, e.g. "Gen-
eral".
Constant temperature control unit
Operating instructions, chapter
"Scanning information"
4. Select required value (e.g. "Burner
starts") or "All details".
Constant temperature control unit
Operating instructions, chapter
"Scanning information"