Sophia multi-zone is sold with 9000 BTU duct type indoor units. The 18000 BTU outdoor unit can handle up to 2 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 one consolidated 220-Volt - 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. All systems feature pre-flared pre-flanged insulated copper line sets for each indoor unit, efficient cooling and heating down to -13°F, automatic operation, intelligent pre-heat/defrost, sleep mode/timer, remote control for each indoor unit, and more. COOPER and HUNTER Sophia multi-zone systems, with 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.