Adjusting The Heating Curves - Viessmann VITOLIGNO 300-P Service Instructions Manual

Further details regarding the individual steps
Display
"Output 20 M1 ON"
"Output 52 M1 Open"
"Output 52 M1 Close"
"Output 20 M2 ON"
"Output 52 M2 Open"
"Output 52 M2 Close"
"Output 28 ON"
"Output 50 ON"
"Output 157 ext."

Adjusting the heating curves

The heating curves illustrate the relationship between the outside temperature and
the boiler water or flow temperature.
To put it simply: The lower the outside temperature, the higher the boiler water or flow
temperature.
In turn, the room temperature depends on the boiler water or flow temperature.
Settings in the delivered condition:
■ Slope = 1.4
■ Level = 0
Commissioning, inspection, maintenance
Explanation
In conjunction with a solar thermal sys-
tem, the solar circuit pump is connected
to this output.
DHW circulation pump
Central fault message
Function extension 0-10 V
(see page 112)
(cont.)
41