Viessmann VITODENS 222-F Installation And Service Instructions Manual page 65

Boiler – Group 2
Coding in the delivered condition
Burner service in 100 hours
21:0 No maintenance interval
(hours run) selected
Service interval in months
23:0 No time interval for
burner service
Service status
24:0 No "Service" display
Filling/venting
2F:0 Venting program/fill pro-
gram disabled
Ext. pump blocking
32:0 Influence of the signal
"External blocking" on cir-
culation pumps: All
pumps in control function
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.
3 Control funct.
4 Control funct.
5 Control funct.
6 Control funct.
7 Control funct.
(cont.)
Possible change
21:1
to
21:100
23:1
to
23:24
24:1
2F:1
2F:2
32:1
to
32:15
Heating circuit
pump
Heating circuit
without mixer
Control funct.
Control funct.
Control funct.
Control funct.
OFF
OFF
OFF
OFF
The number of hours run
before the burner should
be serviced is adjustable
from 100 to 10 000 h
One adjusting step ≙ 100
h
Interval adjustable from 1
to 24 months
"Service" display (the
address is automatically
set and must be manually
reset after a service has
been carried out)
Venting program enabled
Fill program enabled
Influence of the signal
"External blocking" on cir-
culation pumps: See the
following table
Heating circuit Circulation
pump pump for cylin-
Heating circuit der heating
with mixer
Control funct. Control funct.
Control funct. OFF
OFF Control funct.
OFF OFF
Control funct. Control funct.
Control funct. OFF
OFF Control funct.
OFF OFF
Code 1
65