Night setback

The night setback function is adaptive: After a learning phase, the dT/dt (temperature/time) behaviour is assessed in connection with adaptive tolerance ranges.
This assessment results in the speed being reduced or an existing speed reduction being exited again.
The adaptive algorithm used attempts to eliminate interference effects (such as burner peaks during assessment).
Even at low water temperatures (e.g. underfloor heating), the algorithm attempts to recognise a lack of demand for speed reduction.
Reduction takes place in the order normal operation, transition and night. The return process goes directly from night to normal operation. If night setback is active, the setback speed can be taken from the characteristic curve data sheet for Δp-v or Δp-c for each individual variant.

NOTICE

notice

The additional control function “night setback” is an energy-saving function. Avoiding unnecessary running times thus saves electrical pump energy.
This function is deactivated in the factory settings and must be activated if required.

CAUTION

Property damage caused by frost!

The night setback may be activated only if hydronic balancing of the system has been completed!
In case of non-compliance, inadequately supplied system parts may freeze due to frost!

  1. Carry out hydronic balancing!

NOTICE

notice

The additional control function “Night setback” cannot be combined with the additional control function “No-Flow Stop”!

The additional control function “Night setback” cannot be used with the “-R7” version.