Cleaning Equipment of Refrigerant Pipes | Korean Products

October 18, 2018

Cleaning Equipment of Refrigerant Pipes[INQ. NO. 1807M11] It has been announced that a cleaning technology capable of using the existing refrigerant pipes without replacement has been developed.
Bumsuk Engineering has developed a cleaning equipment of refrigerant pipes for the system air conditioner which can use the recovered refrigerant as a cleaning agent.
R22 was the refrigerant of system air-conditioners (multi-conditioners, heat pumps) installed before 2010 in residential complexes, large office buildings, public institutions (schools, libraries, etc.). In cases where an outdoor unit using R22 refrigerant is replaced with a new one using R410a refrigerant, as the existing refrigerant pipe is embedded in a wall or a ceiling, it is often reused as it is without cleaning.
When you use R410a refrigerant for the outdoor unit of newly replaced system air-conditioners, be sure to clean the inside of the already installed refrigerant pipes before reusing it as refrigeration oil or other contaminants are attached to the inside of the pipes.
In the conventional cleaning method, pipes are cleaned by connecting the recovery system and regenerator separately even in case of using either chemical cleaning agent (solvent cleaner) or existing refrigerant. However, mineral oil or residues of acid content existing in the oil cannot be eliminated even by vacuum cleaning over three times; and mineral oil, moisture and acid content are not eliminated even after vacuuming for one week, thereby causing problems such as damage of the compressor.
A spokesperson for Bumsuk Engineering explained, “As all new system air conditioners (outdoor units) use HFC series R410A or R407C (partially imported goods), synthetic oil is used for refrigeration and, as a result, contaminants are generated while the mineral oil passes through the existing pipes. Such contaminants can clog the refrigerant circuit or damage the compressor.”


Eliminating impurities by more than 99%

The cleaning equipment of refrigerant pipes developed by Bumsuk Engineering is a single piece of equipment combined with the functions of recovery and regeneration capable of recovering and regenerating the existing refrigerant and uses the recovered refrigerant as a cleaning agent.
A spokesperson for Bumsuk Engineering added, “We obtained a patent for ‘Cleaning equipment for refrigerant pipes in air-conditioners and its cleaning method’ by automatically controlling pressure, temperature and electronic valve with technology of inside of pipe cleaning by using the refrigerant (R22) recovered from the removed system air-conditioner. The patented refrigerant pipe cleaning equipment is a technology-cum-equipment that removes more than 95% of impurities such as oil attached to pipes by cleaning 40 meters of pipes connected to indoor unit for about 20 minutes.”
It is possible to extend the service life of the outdoor unit by eliminating the cause of its failure through cleaning when the equipment is replaced with a new one. By reusing the pipes, you can expect saving of installation costs and work time as well as reduction of waste. Especially, as the cost for removing the refrigerant pipes installed in both the outer and inner walls and the roof is not required and the pipes are reused, you can reduce costs drastically. | Blog Magazine of Korean products, brands and Goods

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