Scanning And Resetting The "Service" Display - Viessmann VITODENS 200-W Installation And Service Instructions Manual

Commissioning, inspection, maintenance
Connecting the control unit to the LON
Boiler control unit
Control unit transmits the
time.
Code "7b:1"
Control unit sends outside
temperature.
Set code "97:2".
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"

Scanning and resetting the "Service" display

The red fault indicator flashes when the limits set in
coding addresses "21" and "23" have been reached.
(Coding address in group "Boiler" (weather-compen-
sated control unit) or group 2 (constant temperature
control unit).)
Weather-compensated control unit
Display
"Service" and " "
¸
Acknowledging a service
Press OK.
Service the appliance.
Note
An acknowledged service message that was not reset
appears again the following Monday.
42
Vitotronic 200-H
Control unit receives the
time.
Set code "81:3".
Control unit receives outside
temperature.
Set code "97:1".
Viessmann system number.
Code "98:1"
LON subscriber fault moni-
toring.
Code "9C:20"
(cont.)
Vitotronic 200-H
Control unit receives the
time.
Set code "81:3".
Control unit receives outside
temperature.
Set code "97:1".
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.
Constant temperature control unit
The specified hours run or the specified interval with
calendar symbol " " (subject to setting) and "
ý
Press OK.
Service the appliance.
Note
An acknowledged service message that was not reset
appears again after 7 days.
Vitocom
Device receives the
time.
—
—
—
"
¸