Diagnosis - Viessmann Vitocrossal 300 Series Service Instructions Manual

Vitocrossal 300 CU3A 26 to 199 Service

Diagnosis

Scanning operating data
- Operating data can be scanned in six areas.
See "Diagnosis" in the service menu overview.
Operating data on heating circuits with mixing valves
and solar can only be scanned if the components are
installed in the system. 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
1. Press OK and simultaneously for approximately
4 sec.
2. "Diagnosis"
3. Select required group, e.g. "General"
Refer toOperating instructions
For an explanation of the relevant values in the individual lines and fields, see the following table:
Line (brief
scan)
1
1: Software version
Control unit
2: System type 01 to 10
3: 0
4: Software version
Burner control unit
5: 0
6: Number of LON participants
7: Heating circuit A1
(without mixing valve)
Remote control
0: without
1: Vitotrol 200A
2: Vitotrol 300A
or
Vitohome
8: Internal circulation pump
Variable speed
pump
0: without
1: Wilo
2: Grundfos
9: Internal details for calibration
2
Equipment version
Number of
KM BUS
participants
Software Software
version version, Mixing
Programming valve extension
unit 0: No mixing
valve extension
Type
Burner control unit
0
Check digit
Software Remote control
version, 0: without
Remote control 1: Vitotrol 200A
0: no remote 2: Vitotrol 300A
control or
Vitohome
Heating circuit pump,
Software Variable speed
version, variable pump
speed pump 0: without
0: no variable 1: Wilo
speed pump 2: Grundfos
Brief scan
In the brief scan, you can call up temperatures, software
versions and connected components, for example:
1. Press OK and
4 sec.
2. "Diagnosis"
3. "Brief scan".
4. Press OK. The display shows 9 lines with 6 fields each.
Field
3 4
Maximum demand temperature
0
0
Max. output
Details in %
Heating circuit M2
(with mixing valve)
Software
version,
Remote control
0: no remote
control
heating circuit M2
Software
version, variable
speed pump
0: no variable
speed pump
Diagnosis and Service Scans
simultaneously for approximately
5
Burner control unit version
Software 0
version,
LON module
Appliance type
0 0
Heating circuit M3
(with mixing valve)
Remote control Software
0: without version,
1: Vitotrol 200A Remote control
2: Vitotrol 300A 0: no remote
or control
Vitohome
Heating circuit pump,
heating circuit M3
Variable speed Software
pump version, variable
0: without speed pump
1: Wilo 0: no variable
2: Grundfos speed pump
Software Software
version version,
Extension AM1 Extension EA1
6
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