Viessmann Vitodens 200, Service Instructions Manual

Page: 47 / 116

47
Troubleshooting
Repairs
(cont.)
With menu-guided Comfortrol programming unit
1. Check the Comfortrol programming
unit via brief scanĂ2, to establish
whether the extension module is
installed.
Calling up brief scanĂ2
Open cover:
Menu item Key
³ SYSTEM " D "
³ OPERATING STATE " B "
³ CONTINUE " A "
until the text
"Brief scanĂ2"
is displayed
Expansion module
Here, the final digit means:
2
Ă
_
Ă
_
Ă
_
Ă
_
Ă
0 = No expansion module
Viessmann 2Ćwire BUS
recognised
2
Ă
_
Ă
_
Ă
_
Ă
_
Ă
1 = Expansion module
Viessmann 2Ćwire BUS
recognised
VitotronicĂ050
The 2
nd
Ădigit from the left means:
_2
Ă
_
Ă
_
Ă
_
Ă
_ = Extension kit for a heating
circuit with mixer or
VitotronicĂ050 recognised
Please note:
A green LED on the expansion
module flashes if the data bus is
active. The data cableĂ"X
Ă
5.3"
Ă
Ć
Ă
"X
Ă
5.4"
may be interchanged, if the LED is
not lit.
Connection and wiring diagrams,
see pagesĂ99/100.
2. Check the correct installation if the
extension module or VitotronicĂ050
are not recognised.
5692Ă485
G
B