Does the extension of the air-conditioning copper pipe need additional refrigerant?

　　【】Recently it is the peak season for home improvement. My friends asked me, is there any charge for air-conditioning installation? In fact, there is no charge for the installation of air conditioners. However, the author needs to remind friends who buy air conditioners. If the copper pipes used in the air conditioners exceed the fixed length provided by the merchant when the air conditioner is installed, the extra part, the friends will also You have to pay for it yourself. Speaking of lengthening copper pipes, after the lengthening of the copper pipes, does it need to be supplemented with air-conditioning refrigerant?

　　 One. How many meters after the air conditioner is lengthened to connect the pipeline, how many meters need to be supplemented with refrigerant?

　　Answer:

　　 According to the air conditioner installation or maintenance process (national standard or industry-related standard): When the connecting pipeline of the indoor and outdoor units of the air conditioner is installed more than 5 meters in length, Refrigerant should be replenished in time. According to different piping specifications or air-conditioning models with different cooling capacities, an electronic scale is used to quantitatively add refrigerant to ensure the performance of the air-conditioning (cooling and heating effect), otherwise, the air-conditioning will be in place when the air-conditioning pipe is extended and the refrigerant is not refilled in time. The low operating pressure of cooling or heating has always affected performance.

　　 2. What is the standard length of the connecting pipes for the indoor and outdoor units of the household split-type air conditioner?

　　Answer:

　　The standard length of the connected pipes of the household split room air conditioner is 5 meters in accordance with the requirements of the industry or national standards. 1 horse (cooling capacity: 2300W) to 5 horses (cooling capacity: 12500W-13000W), in the actual installation process, should try to control within 5 meters. When the length exceeds the standard 5 meters, the additional refrigerant should be added according to the operating process requirements and the specifications of the connecting pipes. The additional refrigerants for different air pipes are as follows: when the length exceeds each meter, 16g /Φ9.52mm air pipe per meter, 16g /Φ12. 70mm trachea per meter, 18g/Φ15.88mm trachea per meter. To ensure air conditioning performance.

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