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2. AHRI. (2020). AHRI Standard 210/240-2023. Performance Rating of Unitary Air-Conditioning & Air-Source Heat Pump Equipment. Air-Conditioning, Heating, and Refrigeration Institute.
3. ARI. (2003). ANSI/ARI 210/240-2003 - Unitary Air Conditioning and Air Source Heat Pump Equipment. Air-Conditioning and Refrigeration Institute.
4. ASHRAE. (1978). ANSI/ASHRAE 37-1978. Methods of Testing for Rating Unitary Air Conditioning and Heat Pump Equipment. American Society of Heating, Refrigerating and Air-Conditioning Engineers.
5. ASHRAE. (2010). ANSI/ASHRAE Standard 116-2010. Methods of Testing for Rating Seasonal Efficiency of Unitary Air Conditioners and Heat Pumps. American Society of Heating, Refrigerating and Air-Conditioning Engineers.