Traditional central air conditioning systems

When most people think about a central air conditioning system they picture the standard large outdoor unit, powering an indoor unit which is connected to a wall thermostat that can be changed by moving it to the desired temperature.  These classic central air conditioning systems function by forcing hot or cool air through a series of “ducts” which are built into the home or office, usually by descending the roof by about 1 foot in height (but also can be placed underneath the floor in the US) , and subsequently pushing this air through vents.  Here’s a picture of these air conditioning ducts used by these traditional systems:

As you can see these very large systems of ductwork are the basis of these systems.  This type of central air conditioning system is widely used across all of North America is most likely the type of un

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