PID regulator

[tomnord]

Do you need deadband for combined heating and cooling? One option is to have two PID scripts where only one is active at a time. For this you will need an extra object to for mode switch. You can also modify the PID library. Otherwise PID library should be modified to incorporate this.

Erwin's already described how to tune gain values.

I'm not using this as a heating PID, but a fancontroller. The PID transmits settpints to a frequency drive.