Viessmann Vitodens 200 Service Instructions Manual page 41

Code 2
(cont.)
Coding in the delivered condition
24:0 The maintenance dis-
play has been reset
25:0 With outside tempera-
ture sensor for constant
temperature control
units: No recognition of
outside temperature
sensor or fault monitor-
ing
28:0 No burner interval igni-
tion
2E:0 Without external exten-
sion
2F:0 Venting program/filling
program disabled
30:0 Internal fixed speed cir-
culation pump (auto-
matic adjustment, do
not modify)
32:0 Influence of the signal
"External blocking" on
circulation pumps: All
pumps in control func-
tion
Note
Generally, the burner will be blocked.
Coding Internal circu-
lation pump
0 Control funct.
1 Control funct.
2 Control funct.
3 Control funct.
4 Control funct.
5 Control funct.
Possible change
24:1
25:1
28:1
2E:1
2F:1
2F:2
32:1
to
32:15
Heating circuit Heating circuit
pump pump
Heating circuit Heating circuit
without mixer with mixer
Control funct. Control funct.
Control funct. Control funct.
Control funct. OFF
Control funct. OFF
OFF Control funct.
OFF Control funct.
Coding
Maintenance display (the
value is displayed auto-
matically)
Outside temperature sen-
sor and fault monitoring
recognised
The burner will be force-
started for 30 s every 5 h
With external extension
(automatic adjustment on
connection)
Venting program enabled
Filling program enabled
Influence of the signal
"External blocking" on
circulation pumps: see
the following table
Cylinder pri-
mary pump
Control funct.
OFF
Control funct.
OFF
Control funct.
OFF
41