Viessmann VITODENS 200-W WB2B Service Instructions For Contractors page 33

Further details regarding the individual steps
Boiler control unit
Control unit trans-
mits outside tem-
perature
Set code "97:2"
LON subscriber fault
monitoring
Code "9C:20"
Updating the LON subscriber list
Only possible if all subscribers are
connected and the control unit is pro-
grammed to be fault manager (code
"79:1").
Press the following keys:
1. L + d simultaneously for
approx. 2 s.
Subscriber check
initiated (see page 33).
Carrying out a subscriber check
Communication with the system devices connected to the fault manager is
tested with a subscriber check.
Precondition:
The control unit must be pro-
grammed as fault manager (code
"79:1")
The LON subscriber number must
be programmed in all control units
(see page 32)
The LON subscriber list in the fault
manager must be up to date (see
page 32)
Commissioning, inspection, maintenance
Vitotronic 200-H Vitotronic 200-H
Control unit re- Control unit re-
ceives outside tem- ceives outside tem-
perature perature
Set code "97:1" Set code "97:1"
LON subscriber LON subscriber
fault monitoring fault monitoring
Code "9C:20" Code "9C:20"
2. e
A Consecutive number in the sub-
B Subscriber number
(cont.)
Vitocom
The subscriber list is
updated after approx.
2 min.
The subscriber check is
completed.
scriber list
33