User Manual

3.2.5 Adapting parameter values form the building model

used by predictive heating control

Advantages:

– Successful adaptation of the building model increases comfort

– Sound control response at narrowly dimensioned heating output

– Excellent control response between boost heating and comfort mode

The parameter values of the building model are continuously adapted during

operation (automatic adaptation) by processing the measured values for outside

temperature, room temperature, flow temperature as well as using the recirculated

pump's feedback message.

In addition to adapting static building model paramters (i.e. heating curve

parameters), predictive heating control also continuously adapts the dynamic

building model parameters to real building performance during operation.

3.2.6 Preventing general heating mode based on predictive,

model-based calculation

Advantages:

– Reduces the operating hours of the circulating pump

– Reduces heat loss in the piping network

– Reduces heat loss at generation

Thanks to the building model, predictive heating control calculates the comfort

deviations to be expected when heating is off. If these comfort deviations are

acceptable, general heating mode is prevented or locked. The deviations are

calculated for at least the next 64 hours. Acceptable comfort deviations are set by

predictive heating control and cannot be changed.

3.2.7 Mixing circuit flow temperature control with modulating

valve and pump

Advantages:

– Automatic flow temperature setpoint adjustment at poor flow temperature control

The flow temperature is controlled with the aid of a modulating valve and

recirculated pump. A PI controller is used for conventional control. The predictive

heating controller automatically corrects the flow temperature setpoints if control is

poor for whatever reason (e.g. poorly set control parameter).