Development of Central Air Conditioning Circulation System for Condominium Unit and Evaluation of the Indoor Environment in Summer

The purpose of this study was to develop a whole-house recirculating air conditioning system for condominium complexes, and we designed the system, installed it in actual units, and obtained data on temperature, humidity, and power consumption through occupant experiments. The indoor temperatures before and after the system was installed were compared. The results confirmed that the system created an environment where the temperature difference between day and night was within 2 ℃ and the temperature difference between rooms was almost negligible. In addition, the total power consumption of the air conditioner and fan was confirmed to be low at less than 200 kWh.