Carrier® Toshiba 3 Ton - Single VRF Outdoor Unit Heat Pump Features: Modules have inverter-driven twin rotary compressor 591 ft (180 m) actual total system piping (liquid line) 328 ft (100 m) actual piping length from outdoor unit to furthest fan coil Up to 330 ft (100 m) control wiring between outdoor units Up to 6560 ft (2000 m) control wiring between the outdoor units and indoor units Operating temperature range Cooling (db): 23 to 122 F (-5 to 50 C) Heating (wb): -13 to 60 F (-25 to 15.6 C) Protection: high pressure sensor and switch, low pressure sensor, process controller board fuse, inverter overload protection 7-year compressor limited warranty, 5-year parts limited warranty DOCUMENTS Carrier and Toshiba Carrier Vroom Software for Engineers and Contractors Toshiba Carrier VRF Single Phase Heat Pump Outdoor Unit, 3 Ton, 208/230-1-60 Toshiba Carrier VRF Single Phase Heat Pump Outdoor Unit, 4 Ton, 208/230-1-60 Toshiba Carrier VRF Single Phase Heat Pump Outdoor Unit, 5 Ton, 208/230-1-60 Toshiba Carrier VRF Single Phase Heat Pump Outdoor Unit Owners Manual Single-phase Toshiba Carrier VRF Brochure Toshiba Carrier VRF Single Phase Heat Pump Outdoor Unit Installation Manual Toshiba Carrier VRF Product Catalog Toshiba Carrier Vroom Software for Engineers and Contractors Toshiba Carrier VRF Single Phase Heat Pump Outdoor Unit Engineering Manual