Abstract: An air-conditioner unit, is provided comprising: an air-conditioning coil between an input vent and an output vent, receiving return air, passing the return air through the air-conditioning coil, and ejecting supply air, the air-conditioning coil including a plurality of coil paths passing refrigerant; a refrigerant regulator connected to the plurality of coil paths to regulate the flow of the refrigerant through the plurality of coil paths, wherein the refrigerant regulator is configured to have a least two selectable settings, the first selectable setting configuring the refrigerant regulator such that the refrigerant regulator stops refrigerant from flowing through a first subset of the plurality of coil paths and allows refrigerant to flow through a second subset of the plurality of coil paths, the second selectable setting of the refrigerant regulator configuring the refrigerant regulator such that the refrigerant regulator allows refrigerant to flow through all the plurality of coil paths.