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A combined climate control system is a fully variable reversible heating machine, which serves as an air conditioner in summer (t = +27…+50°С) and as a heat pump in winter (t = -50…+7°С) with 100% potential fresh air supply. If it is required, ATT can operate in the ventilation mode as well.

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Revolution in the Climate Control Technology

What makes the technology developed at UPEC unique is the use of air as a refrigerant. It allows to apply highly efficient open and combined cycles, within which air as a thermodynamic working medium flows directly into the premises to be cooled or heated and replaces the required volumes of the ambient air supply. All other systems provide cooling or heating of the premises with application of an “external” working medium (freon, water, ammonia, CO2, etc.), which operates in the closed cycle and transfers energy through the heat exchanger walls.

ATT-60-120Furthermore, due to the application of air bearings, there are no oils or greases in the system, which definitely positions the unit as an environmentally friendly climate control unit of “green energy”.

Another very important ATT feature, with air as a working medium, is its capability to operate within the ambient temperature range -50...+50°C, unlike conventional heat pumps and air conditioners, which have a significantly narrower temperature range and strictly limited capability to supply fresh air at an acceptable efficiency both in summer and winter.

turbocompressor.jpegDepending on the ambient temperature, the ATT heating efficiency (COP) is 2.8...4.2 and the cooling efficiency is 1.3...1.7 (with respect to humidity and ambient temperature), with fresh air supply into premises of up to 100%.

Moreover, the ATT conversion and heating / cooling efficiency increase with the reduction of ambient temperature, while the same features of conventional units deteriorate significantly.

Warranty period – up to 2 years
Life time – up to 10 years
No need in oil filling
No freons, no refrigerants
Working medium – air
No need in drainage in summer
No need in auxiliary system “winter package”
Additional option – water heating in summer

ATT Operation Principles →

ATT Technical Parameters →

ATT Advantages →

ATT Application →