Dhw/Group "3 - Viessmann VITODENS 222-F Installation And Service Instructions Manual

Code 2
Boiler/Group "2"
Coding in the delivered condition
21:0 No service interval (hours
run) selected
23:0 No time interval for
burner service
24:0 No "Service" display
28:0 No burner interval igni-
tion
2E:0 Never adjust
2F:0 Venting program/fill pro-
gram disabled
30:1 Internal variable speed
circulation pump (auto-
matic adjustment)
31:... Set speed in % of the
internal circulation pump
when operated as boiler
circuit pump, specified by
the boiler coding card
38:0 Status burner control unit:
Operational (no fault)

DHW/Group "3"

Select "DHW" for weather-compensated control units (see page 72).
Select "3" for constant temperature control units (see page 72).
82
(cont.)
Possible change
21:1
to
21:100
23:1
to
23:24
24:1
28:1
to
28:24
2F:1
2F:2
30:0
31:0
to
31:100
38:≠0
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)
Time interval adjustable
from 1 to 24 h. The burner
is force-started once every
30 s (only when operating
with LPG)
Venting program enabled
Fill program enabled
Internal circulation pump
without variable speed
(e.g. temporarily for serv-
ice)
Set speed adjustable from
0 to 100 %
Status burner control unit:
Fault