Viessmann Vitodens 333-F Service Instructions Manual page 50

Coding
Code 2
(cont.)
Coding in the delivered condition
0E:0 System pressure below
maximum value
11:≠9 No access to the coding
addresses for the para-
meters of the combus-
tion control unit (see
page 97)
21:0 No maintenance inter-
val (operating hours)
selected
23:0 No time interval for
burner service
24:0 No "Service" display
25:0 With outside tempera-
ture sensor for constant
temperature control
units: No recognition of
outside temperature
sensor or fault monitor-
ing
50
Possible change
0E:1 Max. system pressure
exceeded during opera-
tion. Fault message "A4"
is displayed as long as
the max. system pres-
sure is exceeded.
After the fault has been
removed, reset the cod-
ing address manually to
0.
Note
The value is set automa-
tically.
11:9 Access to the coding ad-
dresses for the para-
meters of the combustion
control unit enabled (see
page 97)
21:1 The number of hours run
to before the burner should
21:9999 be serviced is adjustable
from 1 to 9999 h
23:1 Interval adjustable from 1
to to 24 months
23:24
24:1 "Service" display (the
address is automatically
set and must be manually
reset after a service has
been carried out)
25:1 Outside temperature sen-
sor and fault monitoring
recognised