CONTROL / IOT

Hong Kong

Project Introduction NEC’s goods warehouse has introduced a fresh-air system. By optimising airflow and using a 3-coil heat-exchange mechanism, it replaces the traditional high-power air-conditioning system. This creates a cooler and more comfortable working environment while still meeting the customer’s temperature requirements for the warehouse.   At the same time, the fresh-air units offer strong humidity control. They effectively prevent condensation from forming on the walls of other floors, maintain stable humidity levels, and help avoid mould growth as well as damage to precision components.   In addition, because the warehouse temperature remains stable on average throughout the year, the system also reduces the operational management burden.   Key Results The application of the fresh-air system has significantly improved the warehouse’s energy efficiency. Air-conditioning system power consumption dropped from the original 97.5 kW to approximately 7.5 kW, delivering substantial energy savings and lowering long-term operating costs.   Through precise airflow control, overall temperature distribution has become more uniform, avoiding localised overheating or uneven cooling.   Humidity management has also been highly effective: water seepage and condensation problems have been reduced, a dry storage environment is maintained, and the preservation quality of the goods has been enhanced.

Hong Kong

Project Introduction Southern District of Hong Kong has humid air all year round. Kins fresh-air units can effectively control indoor humidity.     In a detached house residential project in the Southern District, the fresh-air system works together with the air-conditioning system to deliver high energy efficiency and humidity control, while supplying fresh air to every space in the house.     The system adopts advanced heat-exchange technology and intelligently regulates humidity levels. At the same time, it prevents mould growth and mould damage to walls and corners caused by a damp environment, eliminating the need for frequent renovation, touch-up painting, and redecoration.     In addition, it continuously introduces fresh air, improves indoor air quality, keeps the spaces fresh and well-ventilated, and enhances overall living comfort. It is particularly suitable for luxury residences in high-humidity areas, ensuring that residents enjoy a healthy and livable environment without affecting the original architectural aesthetics.   Key Results The application of the fresh-air system in residential properties has delivered significant results. Indoor humidity is maintained at around 60%, effectively removing dampness and odours, making the indoor environment drier and more comfortable.     Feedback from residents shows that problems of stale air have clearly improved, the feeling of stuffiness and confinement is avoided, symptoms of headache and fatigue have decreased, and overall comfort has increased. Family members can feel the continuous flow of fresh air in their daily lives.

Hong Kong

Project Introduction Hong Kong commercial buildings often face high-density occupancy and problems of stuffiness and humidity. In addition to improving indoor air quality, the fresh-air system adopts an advanced HVAC system that uses a complete treatment process of “high-efficiency heat recovery + pre-cooling + deep dehumidification”. Filtered and deeply purified clean fresh air is steadily supplied into the interior, establishing a comfortable low-temperature and low-humidity foundational environment.     The system continuously supplies highly filtered and treated fresh air. It not only effectively controls and removes major indoor pollutants, but also significantly reduces odours and bacterial growth, thereby greatly enhancing the freshness and cleanliness of indoor air. This creates a healthy, odour-free office environment with low pollutant concentrations for employees, fundamentally improving the health risks and comfort issues caused by long-term poor indoor air quality.   Key Results Advanced heat-exchange technology promotes efficient circulation of indoor and outdoor air, avoiding feelings of stuffiness and confinement. Stable fresh-air supply is maintained during peak periods, improving air circulation by more than 40% and creating a comfortable and pleasant office atmosphere.     Pre-cooling technology further ensures the indoor environment remains cool without feeling muggy, and reduces the original air-conditioning load. Through the above comprehensive optimisations, the system’s overall energy consumption is reduced by approximately 30%, with an investment payback period of only about 3 years. This achieves both healthy comfort and significant energy-saving economic returns.