Viessmann VITODENS 333 Service Instructions Manual page 44

Coding
Code 2
(cont.)
Coding in Function mode
the as
delivered
condition
Address:
value
25:0 * 1 No recognition of out-
side temperature sen-
sor or remote
monitoring (only in i)
28:0 No burner interval igni-
tion
2E:0 Without external exten-
sion
2F:0 Ventilation program/fill-
ing program inactive
30:1 Internal variable speed
circulation pump (auto-
matic adjustment)
31:65 Set speed of the inter-
nal circulation pump
when operated as boiler
circuit pump 65 %,
defaulted by the boiler
coding card
32:0 Influence signal Exter-
nal lockout on circula-
tion pumps: All pumps
are controlled
Coding Internal
circula-
tion pump
0 Control
funct.
1 Control
funct.
*1
Only for constant temperature control units.
44
Coding
change
Address:
value
25:1
28:1
2E:1
2F:1
2F:2
30:0
31:0
to
31:100
32:1
to
32:15
Heating cir- Heating circuit
cuit pump pump
Heating cir- Heating circuit
cuit without with mixer
mixer
Control funct. Control funct.
Control funct. Control funct.
Possible change
Recognition of outside
temperature sensor and
fault monitoring
The burner is forced ON
once every 24 hours
Including external exten-
sion (automatical adjust-
ment on connection)
Venting program active
Filling program active
Internal circulation pump
without variable speed
(e.g. temporarily for ser-
vice)
Set speed adjustable
from 0 to 100 %
Influence signal External
lockout on circulation
pumps: see the following
table
Cylinder loading
pump
Control funct.
OFF