Connecting The Control Unit To The Lon - Viessmann VITOCROSSAL Service Instructions Manual

Adjusting heating curves
90
3.5
A
+20
Outside temperature in °C
Fig. 26
Changing the slope
A
Changing the level (vertical parallel offset of the
B
heating curve)

Connecting the control unit to the LON

The LON communication module must be plugged in.
Note
Data transfer via LON can take several minutes.
Example: Single boiler system with
Vitotronic 200-H
Set LON subscriber numbers and further functions via
code 2 (see the following table)
All coding addresses in the table are listed in the "General" group.
Boiler control unit
LON
Subscriber no. 1
Code "77:1"
Control unit is fault manager.
Code "79:1"
Control unit transmits the time.
Code "7b:1"
Control unit transmits outside tem-
perature.
Set code "97:2".
Viessmann system number.
Code "98:1"
LON subscriber fault monitoring.
Code "9C:20"
(cont.)
1.4
B
0.2
-20
Vitotronic 200-H
LON
Subscriber no. 10
Code "77:10"
Control unit is not fault manager.
Code "79:0"
Control unit receives the time.
Set code "81:3".
Control unit receives outside tem-
perature.
Set code "97:1".
Viessmann system number.
Code "98:1"
LON subscriber fault monitoring.
Code "9C:20"
Commissioning, inspection, maintenance
Press the following buttons for the extended menu:
1. to call up the menu.
å
2. "Heating" select
3. / to select the heating circuit.
4. "Heating curve" select
5. "Slope" or "Level" to change the heating curve in
accordance with requirements.
Note
The same subscriber number must not be allocated
twice within the LON.
Only one Vitotronic may be programmed as fault
manager.
Vitotronic 200-H
Subscriber no. 11
Set code "77:11".
Control unit is not fault manager.
Code "79:0"
Control unit receives the time.
Set code "81:3".
Control unit receives outside temper-
ature.
Set code "97:1".
Viessmann system number.
Code "98:1"
LON subscriber fault monitoring.
Code "9C:20"
33