Scanning And Resetting The "Service" Display - Viessmann Vitodens 222-F Installation And Service Instructions For Contractors

Connecting the control unit to the LON
Boiler control unit
Control unit transmits the
time.
Parameter "7b:1"
Control unit transmits outside
temperature.
Set parameter "97:2".
Viessmann system number.
Parameter "98:1"
LON subscriber fault monitor-
ing.
Parameter "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 enabled as fault manager
(parameter "79:1" in the "General" group).
■ The LON subscriber number must be set in all con-
trol units.
The LON subscriber list in the fault manager must be
■
up to date.
Tap the following buttons:
1. "Menu"
2. "Service"
3. Enter "viservice" password.
4. "Service functions"

Scanning and resetting the "Service" display

Service indicator
It is possible to set threshold limits for a service using
either the commissioning assistant or by setting
parameters "21" and "23" in the "Boiler" group.
When these limit values are then reached, a service
message appears in the display.
Tap the following buttons:
1. "Confirm"
flashes in the footer.
Vitotronic 200-H
Control unit receives the
time.
Set parameter "81:3".
Control unit receives outside
temperature.
Set parameter "97:1".
Viessmann system number.
Parameter "98:1"
LON subscriber fault moni-
toring.
Parameter "9C:20"
Commissioning, inspection, maintenance
(cont.)
Vitotronic 200-H
Control unit receives the
time.
Set parameter "81:3".
Control unit receives outside
temperature.
Set parameter "97:1".
Viessmann system number.
Parameter "98:1"
LON subscriber fault moni-
toring.
Parameter "9C:20"
5. "LON subscriber check"
The list of all connected LON subscribers appears.
6. Select subscriber and confirm with "OK".
The subscriber check for the selected subscriber is
initiated.
■ If the subscriber check was successful, "Check OK"
is shown.
■ If the subscriber check was unsuccessful, "Check
not OK" is shown.
Note
To perform another subscriber check:
Create a new subscriber list with "New list". The
subscriber list is updated.
Note
During the subscriber check, the display of the relevant
subscriber shows the subscriber no. and "Wink" for
approx. 1 min.
2.
Note
After tapping the following will be displayed if
your heating system has several fault messages
simultaneously:
3. "Service, messages"
The service messages appear yellow in a list.
After maintenance has been carried out
Tap the following buttons:
1. "Menu"
Vitocom
Device receives the
time.
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