What you should know about your heating system
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Logamatic 4323 - Subject to technical modifications.
7
Why do you need a heating control unit?
The heating control unit ensures convenient heat and
economical consumption of fuel and electrical energy.
The control unit
starts the heat source (boiler and
burner) and pumps when heat or DHW is required.
Also, your heating control unit monitors different
variables that influence the room temperature and
compensates for these variables.
What does the control unit calculate?
Advanced control units calculate the temperature
required within the boiler (the so-called flow
temperature) subject to the outside temperature.
The
relationship between the outside temperature and
the flow temperature is described as the heating curve.
The lower the outside temperature, the higher the flow
temperature.
The control unit can operate in three control modes:
– weather-compensated control
– room temperature-dependent control
– weather-compensated control with room
temperature hook-up
Fig. 3 Heating circuit curve (example)
x Outside temperature
y Flow temperature
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