Operating instructions

82
Coding in the delivered condition Possible change
98:1 Viessmann system num-
ber (in conjunction with
monitoring several sys-
tems via Vitocom 300)
98:1
to
98:5
System number adjustable
from 1 to 5
99:0 Do not adjust
9A:0 Do not adjust
9b:70 Set flow temperature for
external demand 70 °C
9b:0
to
9b:127
Set flow temperature for
external demand adjusta-
ble from 0 to 127 °C (limited
by boiler-specific parame-
ters)
9C:20 Monitoring LON subscrib-
ers.
If there is no response
from a subscriber after
20 min, the values speci-
fied inside the control unit
are used. Only then will a
fault message be issued.
(only for weather-com-
pensated control units)
9C:0 No monitoring
9C:5
to
9C:60
Time adjustable from 5 to
60 min
9F:8 Differential temperature
8 K; only in conjunction
with the mixer circuit (only
for weather-compensa-
ted control units)
9F:0
to
9F:40
Differential temperature
adjustable from 0 to 40 K
"Boiler"/group 2
Select "Boiler" for weather-compensa-
ted control units (see page 73).
Select "2" for constant temperature con-
trol units (see page 73).
Code 2
"General"/group 1
(cont.)
5772 909 GB