1. The unit must be installed smoothly, shall not bear the weight of pipes and ducts. 2. After power should check the fan rotation direction is correct. 3. Durkin company's controller, which can effectively protect the air conditioner fan motor to reach a long life and stable operation of the air conditioning unit if the preparation of the controller, you must ensure that access to each fan power three phase, and there is lack of protection and overload protection. 4. Air-conditioned room should be left sufficient import heat recovery air-conditioning unit, the access door at the unit and filter out of the direction should be considered sufficient space. 5. Air filters should be cleaned or replaced on a regular basis according to the environment. Modular air conditioning units aftermarket advantage Chenyu conditioning Equipment Manufacturing Co. with decades of experience specializing in the production of new units and air conditioning units, supplemented by innovative refinement of concepts, offers a unique combination of design rooftop air conditioning units, mixing section, filter section, table functional segments cold section, heating section, humidification, muffler section, fan section and other independent manufacturers, and then be combined according to different requirements, from general purpose air-conditioned comfort to demanding hospital operating room and integrated dust room air conditioners and other clean technology can meet the requirements. rooftop air-conditioning units, Chen Yu-conditioned factory outlets (certified), Hengshui City, air conditioning units are provided by Wu Cheng Chen-yu air-conditioning Limited. Wu Cheng Chen Yu Air Conditioning Equipment Co., Ltd. (www.wccykt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Chen Yu-conditioning in leadership with the staff warmly welcome all inquiries negotiations to create Chenyu conditioning a better future.