FACT
The fresh air supply "ventilation" accounts for approximately half of total heating and cooling expenses.
The problems to be solved
In a year-round use the traditional heat recovery ventilators waste significant amounts of energy when the system brings outdoor air and feeds
It into the entire system, and the quality of the supply air is unhealthy due to bacteria, mould etc.90% annual efficiency halves expenses and dramatically reduces initial costs
On the Arctic Circle we have innovated and multi patented the ventilation heat recovery unit halving heat and humidification energy consumption.
The idea of the airAC Enthalpy Recovery Ventilator (ERV) is based on the best features of two most efficient regenerative air-to-air counter flow principles, which cyclically can store and release heat combined with humidity. The patented method minimises heat loss in winter based on non-freezing method.
Due to global warming it is more important that the very same unit reduces cooling and dehumidification costs even more than half.
Concerning cooling airAC more than eliminates heat loss based on free and natural evaporative cooling, which exceptionally takes place in high humid and warm conditions as well.
Takes advantage of the latent heat
Instead of rotating a heavy metal heat exchanger the patented airAC method rotates a light and reliable air valve combined with aluminium plate heat exchanger.
Every cycle is accompanied by heat absorption or release and associated constant pressure level eliminating water condensation and frosting.
The airAC heat recovery has been designed to maintain the indoor airAC's temperature and relative humidity at an optimum level. By integrating humidification function in winter and dehumidification in summer, the airAC principle achieves much higher Seasonal Performance Factor (SPF) and decreases unit costs.
In winter, sufficient moist indoor air permits a 0.5 °C drop in temperature, that in itself already mean a 2.5% reduction in heating expenses.
The latent heat is recently not utilised and thus SPF is relatively low.
Easy maintenance - enhanced safety, security and convenience
Due to the unique principle our heat exchangers and ducting need very low maintenance. After 6 year use the airAC heat exchangers were as clean as new ones "bacteria and mould growth is eliminated" without cleaning and air filters! The cross contamination of air flows is only 1%.
Multipatented
The first units have been available since 1996, and the first patent was granted 1997.
The airAC ERV exceptionally can be integrated with compressor cooling and heat pump.
The unique modification is to integrate recuperative and regenerative heat exchangers for energy-efficient air drying by dry outdoor air in winter.
Coming: Compressorless cooling is arranged using thermoelectrics (TEC) and/or absorption.