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Air to water heat pump system

What an intel­li­gent control can mean to heat pump perfor­mance

More and more heat pumps are being fitted with effi­cient parts such as a DC compressor, an elec­tronic expan­sion valve and/or an EC fan. the aim is to improve effi­ciency. However, the use of effi­cient compo­nents alone is not enough because intel­li­gent control is also required to really make a differ­ence.

The compressor in a heat pump system is the primary consumer of energy. A logical choice is there­fore to use an energy-effi­cient DC compressor. The higher output of these DC motors imme­di­ately creates a major energy saving. The drive for the DC compressor does require what is called an inverter. A heat pump control with advanced inverter control ensures that the compressor is actu­ally able to be effi­cient with the required energy and that the power of the heat pump can be controlled on the basis of the heat demand.


Argus Vision heat pump control with advanced user-inter­face

With an elec­tronic expan­sion valve the size of the aper­ture is controlled by a stepper motor. On the basis of a number of temper­a­ture measure­ments the heat pump control calcu­lates the optimum posi­tion for the elec­tronic expan­sion valve. Proper control of the elec­tronic expan­sion valve ensures that the heat pump is always able to find an optimum working point. As a result of this the effi­ciency of the heat pump is increased. An EC fan or EC pump in use gener­ates an energy saving of no less than 60 percent compared to the commonly used AC motors. Via the heat pump control the speed of these types of fans and pumps can also be easily adjusted and, as a result, opti­mised.

An inte­grated weather-depen­dent control with room temper­a­ture compen­sa­tion harmo­nizes the heat that the heat pump has to deliver to the actual internal and external temper­a­tures. As a result of this the heat pump control is able to respond imme­di­ately to external temper­a­ture changes and adjust the capacity if required. This control contributes to the further effi­ciency opti­mi­sa­tion.

For service­ability a good user-inter­face has become essen­tial, espe­cially with advanced heat pump systems. To start with, the user wants clear status infor­ma­tion. Settings and histor­ical data with regard to the appli­ance compo­nents — that are already controlled intel­li­gently by the heat pump control — can now be easily displayed via the user inter­face. This offers the possi­bility of gener­ating more specific fault codes.

For air/water heat pumps there are now many compo­nent options that can further reduce the energy consump­tion. To achieve optimum control of these advanced compo­nents the role of the heat pump control has become essen­tial. Appli­ance exper­tise and inte­gra­tion of control func­tions have been the deci­sive factors in achieving a successful end product.

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  • Thanks for this infor­ma­tion on air to water pump systems. I would imagine that when it comes to purchasing an actual pump, you’d want to get a high-quality one. This way it can work the way it was intended.