Viessmann Vitodens 222-F B2TA series, Installation And Service Instructions Manual, Page: 81 / 196

81
Coding in the delivered condition Possible change
Service interval in months
23:0 No interval for burner
service 23:1
to
23:24 Interval adjustable from 1
to 24 months
Service status
24:0 "Service" not shown on
display
24:1 "Service" is shown on dis-
play (the address is auto-
matically set and must be
manually reset after a serv-
ice has been carried out)
Filling/Venting
2F:0 Venting program/fill pro-
gram disabled 2F:1 Venting program enabled
2F:2 Fill program enabled
"DHW"/group 3
Select "DHW" for weather-compensa-
ted control units (see page 77).
Select "3" for constant temperature con-
trol units (see page 77).
Coding
Coding in the delivered condition Possible change
Enable DHW circulation pump
73:0 DHW circulation pump:
"ON" in accordance with
the time program (only for
weather-compensated
control units) 73:1
to
73:6 During time program
"ON" from once per hour
for 5 min to
"ON" 6 times per hour for
5 min
73:7 Constantly "ON"
"Heating circuit ..."/group 5
Select "Heating circuit ..." for weather-
compensated control units (see
page 77).
Select "5" for constant temperature con-
trol units (see page 77).
Code 1
"Boiler"/group 2
(cont.)
5773 216 GB
Service