Shutting Down The System - Viessmann Vitoligno 300-P Service Instructions For Contractors

Commissioning, inspection, maintenance
Further details regarding the individual steps
Carrying out a user check
In conjunction with LON.
Communication with the system devices connected to the fault manager is tested
with a user check.
Preconditions:
■ The control unit must be program-
med as fault manager (code "79:1").
■ The LON user number must be pro-
grammed in all control units (see
page 34).
■ The fault manager LON user list must
be up to date (see page 35).
Press the following keys:
1. d + MENU simultaneously for
2. |/~
3. d
4. |/~
5. d

Shutting down the system

Operating instructions
36
approx. 4 s.
The "Service" menu
is displayed.
for "User check".
to confirm.
for "Activating a
check".
to confirm.
(cont.)
6. |/~
7. d
8. "User check" "OK" is displayed
during communication between both
devices.
"User check" "Not OK" is dis-
played if there is no communication
between both devices. Check the
LON connection and encoding.
9. Repeat points 6 and 7 to check fur-
ther users.
10. Press g until the standard display
is displayed.
The user check is completed.
for the required user.
The user number
flashes, until the
check has been com-
pleted. The display
and all key illumina-
tions for the selected
user flash for approx.
60 s.