For full Tech specks and other information, pls Refer to high SEER web site. Pioneer brand 8-way Ceiling cassette Ductless Inverter mini split air conditioning, heat pump system (Ductless indoor section, with optional ducting), full system set. Ductless mini splits have been the system of choice to serve single or multiple areas using a single indoor unit. (Via optional air duct network addition). installation of a Pioneer mini split system is a breeze. With a Pioneer Ductless mini split type air conditioning system, it is possible to heat or cool a large area, quietly, effectively and efficiently. Pioneer brand cyb Series Ductless split heat pump systems come in 5 different capacities; 12000, 18000, 24000, 36000 and 48,000 BTU/hour. Cyb is an Inverter system with variable speed compressor, providing very high efficiency levels. Included wireless remote digital controller allowing the users easily select among the 4 operating modes; cooling, heating, dehumidification and ventilation. Additionally an automatic switchover mode is available for totally automatic operation through its on board computer. A timer function allows the user to set the system to start or stop running at a certain time. Night mode function automatically adopts the temperature settings to the naturally changing body temperature levels during the night. Auto restart function memorizes all settings in case of a temporary power failure and restarts the system to continue running the same way after the power is reconnected. System is equipped with optional duct connections to efficiently push air through a custom ductwork to remote areas (ductwork is field supplied based on the specific application). with the ever increasing popularity of Inverter mini split systems, there are many Unknown brands trying to penetrate the us market. Buyers interested in a Inverter split heat pump are encouraged to consider buying a reputable brand, such as Pioneer, to be assured of their top quality and performance.