Viessmann Vitodens 333-F Service Instructions Manual page 51

Code 2
(cont.)
Coding in the delivered condition
28:0 No burner interval igni-
tion
2E:0 Without external exten-
sion
2F:0 Venting program/fill pro-
gram disabled
30:2 Internal variable speed
circulation pump with
flow rate capturing
(automatic adjustment)
31:... Set speed of the inter-
nal circulation pump
when operated as boiler
circuit pump %, de-
faulted by the boiler
coding card
32:0 Influence of the signal
"External blocking" on
circulation pumps: All
pumps in control func-
tion
Note
Generally, the burner will be blocked when signal "External blocking" is
enabled.
Value Internal circu-
address lation pump
32: ...
0 Control funct.
1 Control funct.
2 Control funct.
Possible change
28:1
to
28:24
2E:1
2F:1
2F:2
30:0
30:1
31:0
to
31:100
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
Coding
Time interval adjustable
from 1 to 24 h. The burn-
er is force-started once
every 30 s (only when op-
erating with LPG).
With external extension
(automatic recognition)
Venting program enabled
Fill program enabled
Internal circulation pump
without variable speed
(e.g. temporarily for ser-
vice)
Internal variable speed
circulation pump without
flow rate capturing (auto-
matic adjustment)
Set speed adjustable
from 0 to 100 %
Influence of the signal
"External blocking" on
circulation pumps: see
the following table
Circulation
pump for cylin-
der heating
Control funct.
OFF
Control funct.
51