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3. Performance Evaluation of a Selected Three-Ton Air-to-Air Heat Pump in the Heating Mode, ORNL/CON-34;Domingorena,1980
4. The effect of improper refrigerant charging on the performance of an air conditioner with capillary tube expansion;O’Neal;Energy and Buildings,1990
5. Improvement and Validation of Unitary Air Conditioner and Heat Pump Simulation Models at Off-design Conditions: Final Report-1173-RP;Shen,2006