Vitocrossal 300 CU3A 26 to 199 Service
5673 649 - 18
68
Coding 2
General
(continued)
Coding in the factory setting
Possible change
94:0
Without Open Therm extension
94:1
With Open Therm extension
(automatic recognition).
95:0
Without Vitocom 100
communication interface
95:1
With Vitocom 100 communication
interface (automatic recognition).
97:0
With LON communication
module: The outside
temperature of the sensor
connected to the control unit is
utilized internally
97:1
Control unit receives outside
temperature.
97:2
Control unit transmits the outside
temperature to the Vitotronic
200-H.
98:1
With LON communication
module: Viessmann system
number (in conjunction with
monitoring several systems
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 supply temperature for
external demand 158°F (70°C)
9B:0
to
9B:127
Set supply temperature for external
demand adjustable from 32°F to
260°F (0°C to 127°C) (limited by
boiler-specific parameters).
9C:20
Monitoring LON participants.
If a participant fails to respond,
the values specified inside the
control unit will be used after
20 minutes. Only then will a
fault message be issued.
9C:0
No monitoring
9C:5
to
9C:60
Time adjustable from 5 to 60
minutes.
9F:8
Differential temperature 8 K;
only in conjunction with mixing
valve circuit
9F:0
to
9F:40
Differential temperature adjustable
from 0 to 40 K.