SPECTRACOOL™ Narrow design accommodates 12 inch deep cabinets. Energy efficient reciprocating compressor on N28 models. Energy efficient rotary compressor on N36 and N43 models. R407c and R134a earth-friendly refrigerants. Models for 115, 230 and 400/460 3-phase VAC power input. UL Listed to save customers time and money with agency approvals. Outdoor model operating temperature range from -40 to 55°C. Attractive industrial design with minimal use of visible fasteners. Reliable mechanical thermostat on enclosure side of the unit; indoor Air Conditioner models include digital display on ambient side. Galvanized sheet-metal cover for rugged factory and outdoor environments. Easy-mount flanges for simple installation. Cut-out adapter options for enclosures with GENESIS® air conditioners enable users to easily transition to the new unit. Dust-resistant condenser coil allows the unit to be run filter less in most applications. Cleanable, reusable aluminum mesh filter protects coils for maximum cooling performance. Mounting hardware, gaskets and user manual furnished with the unit. Every unit functionally tested before shipping. Standard Indoor Air Conditioner models also include: active condensate management with heater strip, power-off relay for door switch and other system requirements. Malfunction switch. Standard Outdoor Air Conditioner models also include: Telcordia GR-487 capable. Corrosion-resistant components. Malfunction switch. Compressor heater. Head pressure control. 1300 W enclosure heater.