Oem Integrated Direct Expansion DX Coil Air Handling Units With DC Inverter Air Conditioners

     HOLTOP was founded in 2002 and is a well-known manufacturer of health, comfort and energy-saving air handling equipment and a provider of HVAC system solutions in the industry. With over 600 employees and a floor area of more than 70,000 square meters, HOLTOP produces 300,000 sets of new air, air conditioning and heat exchanger products annually and provides HVAC system solutions for nearly a thousand engineering projects each year. Its products are exported to over 100 countries and regions. HOLTOP is a "National and Zhongguancun High-tech Enterprise" and a "National and Beijing Specialized, Refined, Unique and Innovative Enterprise".

     HOLTOP is headquartered at the foot of Baiwang Mountain in Haidian District, Beijing. It has a modern R&D and manufacturing base covering over 40,000 square meters in the Yanqing Park of Zhongguancun. Equipped with internationally advanced production lines and R&D centers, the manufacturing base has passed ISO9001, ISO14001, ISO45001 management system certifications as well as CRAA, Eurovent, CE, CB, CSA, PHI, HVI, EPCS, UKCA and other product certifications. It also has a national-certified enthalpy difference laboratory and has obtained over a hundred patent and software copyright certifications. It is a participating unit in the compilation of multiple national standards such as GB/T21087-2020, GB/T31437-2015, and GB/T34012-2017.

     HOLTOP, a pioneer in heat recovery technology, is the creator of the "Four-Degree Building Concept" encompassing temperature, humidity, cleanliness, and freshness. Our independently developed air conditioning systems, fresh air ventilators, and heat exchangers are widely used in commercial and residential applications—from public buildings, luxury residences, and large venues to green buildings, schools, hospitals, hotels, and swimming pools—along with industrial facilities in automotive, tobacco, electronics, diaphragm manufacturing, pharmaceuticals, food processing, and data centers.

     HOLTOP Corporate mission: to make air treatment more healthy, comfortable and energy efficient.

     HOLTOP business philosophy: honest management.

     HOLTOP Corporate values: create value for customers, win returns for shareholders, seek welfare for employees, and make contributions to the society.

     HOLTOP corporate spirit: pragmatism, responsibility, collaboration, innovation.

     HOLTOP Sales Service Network: HOLTOP operates 18 sales service centers across China with 32 regional offices. We maintain three export sales service centers in Beijing, Tianjin, and Guangzhou, specializing in serving commercial and industrial clients. Domestically, we focus on project sales while internationally developing standard product inventory providers and customized product engineering contractors. Each sales service center is staffed with technical support and after-sales service personnel, offering comprehensive pre-sales, mid-sales, and post-sales services to clients both domestically and internationally.