Specifications: 1) Power supply: 400V, 50Hz, 3Ph. 2) KFR-120AW: 42,000Btu/h 3) Indoor dimensions (H x W x D): 295 x 1,165 x 738mm 4) Outdoor dimensions (H x W x D): 1,250 x 980 x 412mm Features: 1) Full range models from 2.6kW to 17.5kW available in R410A, R407C, and R22; two power suppliers 230V 50Hz 1-phase and 400V 50Hz 3-phase for capacity 7kW, 9kW, 11kW 2) Compact dimension and construction to save installation cost at least 30%; different height (200mm, 240mm, 275mm, 295mm, 315mm) available for different capacities; whole European design 3) High efficiency evaporator: both indoor/outdoor with special hydrophilic aluminum fins and inner grooved tube to generate greater cooling power, enables the condensation to flow quickly and freely through the fins, prevents the system from freezing and corrosion, thus prolongs the system life 4) Super low noise 5) Specially designed optional functions and protections: a) Defrost, preheat and post heat control functions b) Wired wall control pad c) High/low pressure protection to compressor for big capacity above 9.0kW in R410A d) Outdoor low ambient temperature fan speed control e) Fresh air intake connection f) Auto restart function g) Branch duct: transfer the cool from heated air to another room h) Electric heater booster for indoor unit i) Intelligent networking control system is a integrated building management system that uses our independent, high-speed multi-transmission method; if use this function, another special PCB design with space to insert a gateway card to guarantee centralized master-slave control; it can control maximum 30 sets of air cons at the same time to control different temperature in different rooms, operating independently (this function will be finished in 1 - 2 months)