Ideal-Air Pro Series 36,000 BTU 16 SEER Heating & Cooling Mini Split to include 1 indoor unit and 1 outdoor unit. These offer high-efficiency performance at 16 SEER. They have inverter compressor technology offering 30%?50% energy savings. The indoor evaporator unit can be easily installed with included wall mount bracket. Includes LCD screen hand-held programmable remote controller. Auto restart after power failure. Requires certified HVAC professional installation. Requires field-supplied electrical and communication wiring. A copper refrigerant line sold separately. The line set diameters are 3/8 in and 5/8 in, 208/230 V, 1 phase, 35 Amps, 3835 W, outdoor ambient operating range: (Cooling = 5øF to 122øF), (Heating = 5øF to 86øF).