Basic Technical Specifications Actual cooling capacity: 18,000 BTU/h. Compressor type: High-quality Rotary, characterized by efficiency and ability to operate in hot climates. Cooling type: Mostly available in "Cool Only" system, and versions supporting "Hot/Cool" exist. Voltage: Operates on 220-230 Volts. Refrigerant gas: Mostly uses an environmentally friendly R410A gas.