Rhoss spa, represented exclusively in the UK by the Coolmation Group, has launched its new innovative predictive control system, Adaptive Function Plus (AFP) and is now integrating it as the standard control system in its range of multi scroll compressor chillers and heat pumps.
By using a patented predictive control the AFP system matches multi scroll compressor operation to actual working conditions, thus reducing chiller/heat pump energy consumption by as much as 36% in winter mode and 18% in summer mode.
Traditionally, control logics on water chillers and heat pumps ignore cooling load dynamics, instead they regulate according to return water temperature in order to maintain steady chiller/heat pump operation. However, the Adaptive Function Plus is different, in that it objectively optimises the chiller/heat pump’s operation through information gathered from the load profile, then regulates the delivery water temperature up or down according to the load demands.
A special adaptive algorithm and mathematical formulae is used to vary these values by managing the operation of each individual compressor.