The range of the Seiya unit consists of 7 sizes, from 1.5 kW to 6.5 kW in cooling and from 2.0 kW to 7.0 kW in heating, designed to provide the ideal climate throughout the year for any type of environment. The Seiya are equipped with DC Rotary compressors, except size 24 which has a DC Twin Rotary compressor; performance is high with SEER up to 6.1 and SCOP up to 4. In cooling, the units reach energy class A++ ; in heating, instead, from size 5 to 16 are classified in A++ and from size 18 to 24 in A+. The operating range is wide and ensures maximum comfort by operating from -15 C in heating up to +46 C in cooling. The Silent function reduces the sound power level of the external unit by reducing the noise pollution gen