Viessmann Vitodens 300 - Heating Curve and Temperature Adjustments

A Consecutive list number
B User number
1. Press L and d simultaneously
for approx. 2 se conds. User chec k
initiated.
2. Select the required user with a
and b.
3. Activate checking with d.
"Check" flashes until its comple-
tion. The dis play and all key illumi-
nations of th e sel ected user flash
for approx. 60 s econds.
&
"Check OK" f lashes during c om-
munication between both
devices.
&
"Check not OK" flashes if there
is no communication between
both devices. Check LON con-
nection.
4. For checking furth er users, proce ed
as for i tems 2 and 3.
5. Press L and d simultaneously
for approx. 1 se cond. User check
completed.
Adjusting heating curves (only for weather-compensated
control units)
The heating curves illustrate the rela-
tionship betwee n 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,
again, depends on the boiler water or
the flow temperature.
Settings in the delivered condition:
&
Slope = 1.4
&
Level = 0
Generally, the slope of t he heating
curve lies
&
in the range of A for und erfloor
heating s ystems,
&
in the range of B for low tempera-
ture heating systems (according to
the Energy Savings Order [Ger-
many]).
Further details regarding the individual steps (cont.)
35
Initial start-up, inspection, maintenance
5692 537 GB