Project Name: Jincheng Air Conditioning Outdoor Unit Noise Reduction Project

Project Overview: The equipment to be managed in this project isCentral air conditioning outdoor unit, located on the second floor of the building's podium. Sound source distance from sensitive point.10Approximately 3 miles. Sensitive areas include high-rise residential complexes.

Governance objective: Achieve through governance"Sound Environmental Quality Standard"(GB3096-2008Category A standard, i.e.Please provide the Chinese content to be translated.Daytime≤55dB（A）Night≤45dB（A）

Regulatory Measures: This project employs a large sound-insulating hood+Impedance Composite Muffler+Ventilation and Soundproofing Louvers+Silencer elbows and other mitigation measures

Governance Effectiveness: Through governance, sensitive points have reached44db(A).The governance effectiveness and overall project appearance have been highly recognized by the client's leaders and residents at sensitive points.

1Large outdoor air conditioning units typically use sound-insulating enclosures or barriers for noise reduction. For sound-insulating enclosures, it is recommended to choose composite panels, which can effectively reduce noise for various types of noise.

　　2Different types of air conditioner outdoor units operate on different principles. Some can generate significant vibration and noise, which requires vibration reduction treatment on the internal equipment. For example, installing vibration reduction platforms at the bottom of the air conditioner equipment can significantly reduce vibration amplitude, thereby achieving the goal of lowering low-frequency noise.

　　3The intake and exhaust noise of air conditioning units can be mitigated with silencing equipment, which effectively handles high, medium, and low-frequency noises with significant results.