NicholasDorans

I am going to show you how air conditioning functions by explaining how the refrigeration cycle works. But before I explain
the refrigeration cycle, I will describe all the main parts involved.

1. Compressor
    The compressor is the heart of the refrigeration cycle, it takes a low pressure, low temperature gas and pumps out a 
    high pressure, high temperature gas.

2. Condenser
    The condenser is a giant box essentially that is located outside. It's surrounded by a coil and it has a fan at the top
    of it. What happens is the fan at the top actually removes heat from the refrigerant, changing it from a gas to a liquid.
    
3. Metering Device
    The metering device is basically a restriction in the piping that allows the pressure and temperature of the refrigerant
    to drop very quickly.
    
4. Evaporator
    The evaporator is the coil where you get your "cooling" from. The indoor air blows across the evaporator coil, the heat
    is removed from the air and transferred into the refrigerant. Which results in cool air being blown out of the air
    handler.
    
Ok, now that we know of the parts involved, I can explain how the refrigeration cycle works. It starts at the compressor, the
refrigerant being pumped out is a high temperature, high pressure gas. It travels through copper piping into the condenser
where heat is being removed, changing the refrigerant from a high temp, high press gas to a high temp, high press liquid. The
next place it goes to is the metering device. The high temp, high press liquid enters and what exits is a low temp, low press
liquid. This low temp, low press liquid is then sent through the evaporator coil where the heat is removed from the air,
changing it from a low temp, low press liquid to a low temp, low press gas. This low temp, low press gas is then sent back to
the compressor where the cycles begins all over again.