Viessmann VITOTRONIC300 Installation And Service Instructions Manual page 104

Code 2
"General" Group
Coding in the factory set condition
97:2 With LON communication module:
The control unit sends 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).
99:0
Connection at terminals 2 and 3 in plug aVD
disabled (external blocking/ external "Mixing
valve closed") (see page 55).
104
(continued)
Vitotronic 300, GW2B Installation and Service
Possible change
97:0 The outside temperature of the sensor
connected to the control unit is only utilized
internally.
97:1 The control unit receives the outside
temperature from the Vitotronic 200-H.
98:1 System number adjustable from 1 to 5.
to
98:5
99:1 No function.
99:2 External "Mixing valve closed"
Heating circuit with mixing valve M2
(heating circuit 2).
99:3 No function.
99:4 External "Mixing valve closed"
Heating circuit with mixing valve M3
(heating circuit 3).
99:5 No function.
99:6 External "Mixing valve closed"
Heating circuits with mixing valve M2
(heating circuit 2) and M3 (heating circuit 3).
99:7 No function.
99:8 External blocking.
99:9 No function.
99:10 External blocking/external
"Mixing valve closed"
Heating circuits with mixing valve M2
(heating circuit 2) and M3 (heating circuit 3).
99:11 No function.
99:12 External blocking/external
"Mixing valve closed"
Heating circuit with mixing valve M3
(heating circuit 3).
99:13 No function.
99:14 External blocking/external
"Mixing valve closed"
Heating circuits with mixing valve M2
(heating circuit 2) and M3 (heating circuit 3).
99:15 No function.