Viessmann Vitoladens 300-W Installation And Service Instructions For Contractors page 39

Linking the control unit to the LON
Boiler control unit
Viessmann system number.
Code "98:1"
LON subscriber fault monitor-
ing.
Code "9C:20"
Carrying out a LON subscriber check
The subscriber check is used to test communication
with the system devices connected to the fault man-
ager.
Requirements:
■ The control unit must be programmed as fault man-
ager (code "79:1" in the "General" group).
■ The LON subscriber number must be programmed in
all control units.
The LON subscriber list in the fault manager must be
■
up to date.
Service menu:
1. Press OK and simultaneously for approx. 4 s.
2. "Service functions"
Instructing the system user
The system installer should hand the operating instruc-
tions to the system user and instruct the user in oper-
ating the system.
Scanning and resetting the "Service" display
After the limits specified in coding addresses "21" and
"23" in the "Boiler" group have been reached, the red
fault indicator flashes and "Service" and "
on the programming unit display.
Acknowledging and resetting service
Press OK to acknowledge a service message.
Note
An acknowledged service message that was not reset
reappears the following Monday.
Fitting the front panel
See page 21, steps 2 and 3.
Vitotronic 200-H
Viessmann system number.
Code "98:1"
LON subscriber fault moni-
toring.
Code "9C:20"
" appear
¸
Commissioning, inspection, maintenance
(cont.)
Vitotronic 200-H
Viessmann system number.
Code "98:1"
LON subscriber fault moni-
toring.
Code "9C:20"
3. "Subscriber check"
4. Select subscriber (e.g. subscriber 10).
5. Start the subscriber check with "OK".
Successfully tested subscribers are designated with
■
"OK".
■ Unsuccessfully tested subscribers are identified with
"Not OK".
Note
To perform another subscriber check:
Create a new subscriber list with "Delete list?" (sub-
scriber list is updated).
Note
During the subscriber check, the display of the relevant
subscriber shows the subscriber no. and "Wink" for
approx. 1 min.
After a service has been carried out (resetting
service)
1. Press OK and simultaneously for approx. 4 s.
å
2. "Service functions"
3. "Service reset"
Note
The selected service parameters for hours run and
interval restart at 0.
Vitocom
—
—
39