Brief Scan - Viessmann Vitodens 222-F Installation And Service Instructions For Contractors

Diagnosis and service scans
Diagnosis
(cont.)
Weather-compensated control unit
Calling up operating data
Service menu:
1. Press OK and simultaneously for approx. 4 s.
å
2. "Diagnosis"
3. Select required group, e.g. "General".
Note
"- - -" appears on the display if a sensor that has been
scanned is faulty.
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.
Service menu:
1. Press OK and simultaneously for approx. 4 s.
å
2. "Diagnosis"
3. "Reset data"
4. Select required value (e.g. "Burner starts") or "All
details".

Brief scan

In the brief scan, you can scan temperatures, software
versions and connected components, for example.
Weather-compensated control unit
Service menu:
1. Press OK and simultaneously for approx. 4 s.
å
2. "Diagnosis"
3. "Brief scan".
4. Press OK.
The display shows 11 lines with 6 fields each.
Diagnosis brief scan
1: 0 4 0 A 1
2: 0 0 0 0 0
3: 0 0 0 0 0
0 0 0 0 0
4:
Select with
Fig. 50
For an explanation of the relevant values in the individual rows and fields, see the following table:
Row (brief
scan)
1
1: System schemes 01 to 10
2: 0
3: 0
4: Software version
Burner control unit
76
2
0
0
0
2
Software version
Control unit
0 Appliance version
Number of KM BUS subscrib-
ers
Type
Burner control unit
Constant temperature control unit
Service menu:
1. Press OK and simultaneously for approx. 4 s.
å
2. Select required information with / .
Note
"- - -" appears on the display if a sensor that has been
scanned is faulty.
Saved operating data (e.g. hours run) can be reset to
"0".
Service menu:
1. Press OK and simultaneously for approx. 4 s.
å
2. Select required information with / .
3. Confirm with OK; " " flashes.
4. Confirm with OK; the value is reset.
Field
3 4 5 6
Software version
Programming unit
Appliance ID CU-ID
0 0
Burner control unit version