Boiler does not switch off.
The customer has set the DC controller as shown below, the boiler does not switch off.
A combined Optimiser / Compensator and the compensation is for the Boiler Only.
The configuration described is classified as "Scheme F" in the data sheet - Optimisation with boiler compensation - one or two boiler control
This configuration uses three sensors, the Outside, Space and Boiler Flow Header, it does not use the Compensated flow sensor.
To download the complete data sheet please click HERE.