in the house, and then transfer it to the outside. The refrigerant moves through (central cooling and heating units) the outside and inside unit via the compressor in the outside unit, which is in essence an engine.
The fan on top of the unit, once it’s working, pulls in air from the sides and then pushes it out from the top. The refrigerant in the pipes is colder than that which is passing by the coils. That’s why the air conditioner will often be hot to touch when your hands touch the top of an air cooling unit.
Following the passage through an outdoor coil, the refrigerant is cool and is returned to the home. The refrigerant has to pass through a small gap before it can return inside. It reverses the process, depressurizing the refrigerant or lowers temperatures to bring it back up to the lower temperature, then repeating the cycle. 1rwp47e63t.