Ventilate the outdoor unit heat dissipation. If the outdoor unit with dust cap, Xingping central air conditioning, before first use please take off, the central air-conditioning agents, to prevent damage to the outdoor unit due to poor ventilation. Equipped with household windowless room ventilation should always open doors and windows to prevent indoor air pollution cause physical discomfort. Control operation from the set temperature analysis, central air conditioning, refrigeration temperature control in a reasonable range of 25-28 degrees Celsius, from the outdoor ambient temperature, household air-conditioning energy conservation and human adaptation running its own point of view, this temperature is appropriate. DC inverter: DC inverter is more superior than the AC frequency. The use of DC digital variable speed compressors, only after a voltage converter, AC frequency than 18-40% of the energy savings. Central air conditioning installation | Xingping central air conditioning | Xi'an Hao Electrical and Mechanical Services (Views) provided by the Xi'an-ho, the Electrical and Mechanical Technology Limited. Xi'an Hao Electrical and Mechanical Technology Co., Ltd. (www.029hfkt.com/)(www.029hfkt.com) is a professional "central air conditioning" of the company. Since its inception, we adhere to the "good faith, sound management" approach, the courage of healthy competition in the market, so that the "Gree" brand has a good reputation. We adhere to the "service first, customer first" principle, so that Xi'an Hao Electrical and Mechanical Services has won the trust of customers congregation in central air conditioning, and establish a good corporate image. Special Note: This information is for reference only pictures and information, please contact us to obtain the most accurate information, thank you!