Central heating system control units and methods of controlling a central heating system

摘要

The invention relates to a control unit 12 for controlling a central heating system for heating a building. The central heating system includes a heat pump 10 that supplies hot water to radiators 11 for space heating. The control unit 12 stores a plurality of different time-varying setpoint temperature profiles. Each of the time-varying setpoint temperature profiles has an early morning section with a first average setpoint temperature, an evening section with a second average setpoint temperature that is higher than the first average setpoint temperature, and a daytime section that transitions between the early morning and evening sections. A user interface 18 is provided through which the user can select one of the time-varying setpoint temperature profiles as a baseline time-varying setpoint temperature profile. The control unit 12 is further adapted to use the baseline time-varying setpoint temperature profile to control the operation of the central heating system.