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Polysun 7.1 helps the fields of photovoltaics and heat pumps grow closer together. And that’s not the only thing that’s new: now the “ErP“ energy label for heating systems can be generated directly from Polysun

Image: Polysun 7.1 Press ReleaseWinterthur, October 16th, 2014The integration of PV and heat pumps into a single system is a current topic in the industry. With its new 7.1 version, Polysun brings a useful component in this respect, the new “Exhaust air heat pump” component. In addition, the “ErP” energy label for heating systems can now be generated directly from both Polysun and Polysun Online.

Exhaust air heat pumps
Exhaust air heat pumps are finding their way into the product ranges of a number of suppliers. Exhaust air heat pumps are basically air-to-water heat pumps that, unlike the latter, do not operate by absorbing heat from the outside ambient air but by extracting excess warm air from energy sources (such as, e.g., the basement or the exhaust air from a ventilation system) located within the building envelope. On the one hand, this drives up the annual performance of heat pumps due to the lower temperature differences these have to work against. On the other hand, the amount of energy extracted from the building needs to be “topped up” through a different energy source. Now, Polysun 7.1 brings exhaust air heat pumps as a new component.


Exhaust air heat pumps in Polysun: Image
Figure 1: new component in Polysun 7.1: Exhaust air heat pumps


Energy Label

Energy label in Polysun: Image

Recently published details on the energy label promise a uniform classification ranging from A+++ to F for heating and domestic hot water systems. A solar thermal system helps many of these systems achieve a good rating. Now, with Polysun 7.1 the energy label can be effortlessly generated from any given template project or from own systems. So, manufacturers, installers and designers can get an early idea of the future labelling of their products and systems. And, to this end, Polysun also makes it really simple to compare components from different manufacturers or to integrate them with other heat generating devices such as gas heating and heat pumps.


Figure 2: New in Polysun 7.1: Calculation and generation of energy labels for heating systems.


Overview of new features in Polysun Version 7.1

Download full Press Release (PDF)