Viessmann Vitocal 350-A Installation And Service Instructions Manual page 130

Commissioning, inspection, maintenance
Further details regarding the individual steps
Carrying out subscriber check
In conjunction with LON.
Communication with the system devices connected to the fault manager is tested
with a subscriber check.
Preconditions:
■ The heat pump control unit must be
programmed as the fault manager
("Fault manager")
■ The LON subscriber number must be
programmed in all control units (see
page 128)
■ The LON subscriber list in the fault
manager must be up to date (see
page 129)
Press the following keys:
1. To log on as "Contractor", see
page 168.
2. "Device settings".
3. "Contractor level".
4. "LON subscriber" for subscriber
list.
5. y/x for the required sub-
scriber.
Instructing the system user
The system installer must hand the operating instructions to the system user and
instruct him/her in the operation of the system.
130
(cont.)
6. "WINK" Check is enabled.
Displaying:
■ "check": Subscriber
check runs; "LON –
WINK" flashes for
30 s on the display of
the selected sub-
scriber (if installed).
■ "check OK"
■ "check NOK": No
communication
between the two devi-
ces. Check the LON
connection and
codes; restart sub-
scriber check.
7. Repeat points 5 and 6 to check further
subscribers.
8. "BACK" to exit the menu.