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[Heating circuit] function block
Configuration parameter
5.3
[Heating circuit] function block
5.3.1
Basic settings
Basic heating circuit settings
Set or check this parameter for each installed
heating circuit.
Explanation of [HC type]
This defines the type of selected heating circuit, and
the basic settings for the heating curve and the
maximum flow temperature are factory-set.
The following types are available for selection:
•
[Underfloor heat.]
•
[Radiator heating]
•
[General]
With the [General] setting, you do not need to
perform any basic settings. However, set the
parameters as for [Underfloor heat.], to be on the safe
side.
Explanation of [Flow max]
This parameter sets the maximum flow temperature for
the selected heating circuit.
This value is set to 45°C for the [Underfloor heat.]
type of heating circuit, and to 65°C for the
[Radiator heating] heating circuit type.
Underfloor heating systems still require a safety
thermostat, however.
Explanation of [Off if HeatCurve below]
If the flow temperature calculated using the heating
curve falls below this value, the heating circuit is
switched off.
The parameter is set to 18°C for underfloor
heating systems, and to 24°C for radiators.
Set this parameter higher for heating systems
without a buffer storage tank.
Explanation of [Flow at -10°C] and [Flow at +10°C]
The two adjustable parameters [Flow at -10°C] and
[Flow at +10°C] are used to define the heating curve
for the heating mode.
Based on the current outside temperature , the control
system uses the heating curve to calculate the
currently required flow temperature for the heating
circuit in heating mode.
Explanation of [Set-back]
These parameters are used to set the parallel shift of
the heating curve for the heating mode, in order to
determine the heating curve for the reduced power
mode.
Only make minor changes to this parameter,
because when walls cool down too much, dra-
matically higher air temperatures are required to heat
the room again. Any energy savings will then be lost.
HC type
Heating circuit
Flow max
Off if HeatCurve below
Heating curve
Flow at -10°C
Flow at +10°C
Set-back
Heating load
spec. heating load
Total area
Heating threshold for 'heating'
Heating threshold for 'set-back'
Enable temperature
Heating circuit mixing valve
MixValve runtime
HW priority
Solar heat diss.
