The Sophia Multi-Zone is sold with 2 x 9000 BTU and 2 x 12000 BTU Cassette indoor units. The 36000 BTU outdoor unit can handle up to 4-indoor units total, depending on type and capacity, which do not need to all be installed at once. A perfect solution for residential and commercial applications, this multizone mini-split system can climate control multiple indoor areas with 1-consolidated 220-Volt to 230-Volt outdoor unit powering the entire system. You can mix and match evaporator styles - wall mount, ceiling cassette, concealed duct, universal floor/ceiling, and mini floor consoles to create a unique heating and cooling system. (For a custom-configured system featuring more or different indoor units, please contact customer support on how to order). Featuring industry-leading energy efficiency, these systems offer up to 22.5 SEER using inverter control technology with variable speed heat pump compressors. Inverter technology are some of today's most advanced. Up to 5-indoor units can be connected to a single outdoor unit, reducing the number of outdoor units required. All indoor units can be individually controlled and do not need to be installed at the same time. Color: White.