The latest Carrier WeatherMaker rooftop units (RTU) featuring Eco Features: Optional Humidi-Mi - Zer dehumidification system 208/230 Volt 130 000 BTU 13.4 Seer2 5 Tonnage Puron refrigerant (R-410A) Single-point gas/electrical connections Optional System - Vu controls integration RTU Open controller: BACnet, Lon