Adjusting The Heating Curves - Viessmann Vitoladens 300-C Service Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps
System version 3
One heating circuit without mixer A1 and one heating circuit with mixer M2 with
system separation (with/without DHW heating)
1 Vitoladens 300-C
2 Circulation pump for cylinder heat-
ing
3 DHW cylinder
4 Cylinder temperature sensor
5 DHW circulation pump
6 Outside temperature sensor
7 Heating circuit without mixer A1
8 Heating circuit pump A1
9 Heating circuit with mixer M2

Adjusting the heating curves

The heating curves illustrate the relation-
ship between the outside temperature
and the boiler water or flow tempera-
ture.
To put it simply: The lower the outside
temperature, the higher the boiler water
or flow temperature.
30
(cont.)
M
qP Temperature limiter for limiting the
maximum temperature of underfloor
heating systems
qQ Flow temperature sensor M2
qW Heating circuit pump M2
qE Heat exchanger for system separa-
tion
qR Heating circuit pump M2
qT Extension kit for one heating circuit
with mixer M2
The room temperature, again, depends
on the boiler water or the flow tempera-
ture.
Settings in the delivered condition:
■ Slope = 1.4
■ Level = 0