What is micro chanel Heat exchanger (MCHX)?


Micro chanel Heat exchanger (M C H X)


Micro channel is a coil type used in many evaporator (indoor unit heat exchanger) and condenser (outdoor heat exchanger) coils. You can easily identify it by its flat tubes, and its fins look like waves between the tubes. Technology was developed to use in the automobile industry and is used in radiators and automobile A/C condenser coils.

These coils are made of aluminum, and we use them because of the superior heat transfer; aluminium coils have greater surface contact between the refrigerant and the metal. They also have a low  weight and smaller refrigerant charge.

Aluminium coils have come under a lot of problems from technicians due to  high failure (leak rate of the condenser coils) in some systems. Some have felt these failures occur due to inherent issues with the design, while others have stated that the leaks were due to specific manufacturing issues on a few coils and that these issues are largely in the past. No matter how you feel, it's likely that micro channel coils are here to stay due to the increased heat transfer efficiency and decreased weight. Here are a few things you need to know when installing and servicing micro channel coils.


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