mVARF-H–based systems are an ideal alternative to conventional split or multi-split units when a single efficient and economical system is needed for a facility with a capacity of up to approx. 26 kW and an installation length of up to 100/150 m. mVARF-H outdoor units with DC Inverter technology feature high EER and COP, compact dimensions, operation down to −15 °C in either cooling or heating, low noise, reliability, and easy installation. Standard features also include two-stage oil management, compressor anti-freeze protection, and an intelligent defrost system. Between 2 and 9 indoor units can be connected per system, with a maximum indoor-to-outdoor capacity ratio of up to 130%.