Air-cooled condenser or air-source heat pump packaged DX rooftop units, 6-140 tons. Water-cooled condenser, water-source heat pump, or geothermal heat pump configurations. Horizontal configuration is available for RQ Series units (2-6 tons) and RN Series units (11, 13, 16-30 tons), providing a solution for applications that require horizontal ductwork; it does not require special horizontal