Adjusting Heating Curves - Viessmann Vitoplus 300 Service Instructions Manual

Initial start-up, inspection, maintenance
Further details regarding the individual steps
A Consecutive list number
B User number

Adjusting heating curves

The heating curves illustrate the rela-
tionship between the outside tem-
perature and the boiler water or the
flow temperature. To put it simply: The
lower the outside temperature, the
higher the boiler water or flow tem-
perature. The room temperature
depends on the boiler water or flow
temperature.
32
(cont.)
1. Press L and d simultaneously
for approx. 2 s. The user check has
been initiated.
2. Select the required user with a
and b.
3. Activate a check with d.
"Check" flashes until its comple-
tion. The display and all key illumi-
nations for the selected user flash
for approx. 60 s.
"Check OK" flashes during com-
munication between both
devices.
"Check not OK" flashes if there
is no communication between
both devices. Check the LON
connection.
4. For checking further users, proceed
as described under items 2 and 3.
5. Press L and d simultaneously
for approx. 1 s. The user check is
completed.