Viessmann VITODENS 222-F Installation And Service Instructions Manual page 98

Diagnosis and service scans
Diagnosis
(cont.)
For explanations of individual scans, see the following table:
Brief scan
0
1
E
3
A
4
5
b Diverter
valve sta-
tus
0: not
installed
1: Heating
2: Central
position
3: DHW
heating
C
c
d
F Code 53
1 setting
98
Display
System Software version
schemes 1 Control unit
to 2
Software version
Burner control unit
External hook-up 0 - 10 V
Display in °C
0: no external hook-up
Set boiler water temperature
Highest demand temperature
Burner control unit type
Set cylinder temperature
Max. output in %
Boiler coding card (hexadecimal)
Version
Appliance
Internal details for calibration
Extension AM1
Software
version
Program-
ming unit
0
Appliance type
Version
Burner control unit
Variable Software
speed version
pump Variable
0 w/o speed pump
1 Wilo 0: no varia-
2 Grundfos ble speed
pump