For full tech specks and other information, pls refer to highseer web site. Pioneer brand Ceiling Concealed Ducted INVERTER mini split air conditioning, Heat Pump system (with Horizontal Ceiling Recessed Ducted Indoor Sections), Full System Set. Ducted mini splits have been the system of choice to serve multiple areas using a single indoor unit, via a air duct network. Installation of a Pioneer mini split system is a breeze. With a Pioneer ducted mini split type air conditioning system, it is possible to heat or cool multiple rooms in a house, quietly, effectively and efficiently. Pioneer brand RYB series ducted split heat pump systems come in 5 different capacities; 12000, 18000, 24000, 36000 and 48,000 BTU/Hour. RYB is an Inverter System with Variable Speed Compressor, providing very high efficiency levels. Included wired remote digital thermostat 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 adops 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 a Medium External Static blower (0.16″ ~ 0.40″ WC) to efficiently push air through a custom ductwork (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.