Viessmann Vitodens 333-F Service Instructions Manual page 49

Code 2
(cont.)
Note
Heating systems with one heating circuit without mixer and one heating circuit
with mixer:
Initially, the possible coding addresses "A0" to "Fb" for the heating circuit with-
out mixer A1 are scanned; then the coding addresses for the heating circuit with
mixer M2 are scanned.
Coding
Coding in the delivered condition
System design
00:2 System version 1:
1 heating circuit without
mixer A1, with DHW
heating
Boiler/burner
06:... Maximum limit of the
boiler water tempera-
ture, defaulted in °C by
the boiler coding card
0d:0 Function "Emergency
mode in case of insuffi-
cient system pressure"
disabled
Possible change
00:4 System version 2, 5:
1 heating circuit with
mixer M2, with DHW
heating
00:6 System version 3, 4:
1 heating circuit without
mixer A1 and 1 heating
circuit with mixer M2, with
DHW heating
06:20 Maximum limit of the boil-
to er water temperature
06:127 within the ranges de-
faulted by the boiler
0d:1 Function "Emergency
mode in case of insuffi-
cient system pressure"
enabled.
The burner starts with the
lower output.
The fault message "A2"
will be displayed (see
page 79) as long as the
system operates in emer-
gency mode.
Coding
49