Appliance means any device which contains and uses a class I or class II substance or substitute as a refrigerant and which is used for household or commercial purposes, including any air conditioner, motor vehicle air conditioner, refrigerator, chiller, or freezer.
An air conditioner provides cold air inside your home or enclosed space by actually removing heat and humidity from the indoor air. It returns the cooled air to the indoor space, and transfers the unwanted heat and humidity outside.
Air conditioning (often referred to as AC, A/C or air con) is a system used to cool down the temperature in an inside space by removing the existing heat and moisture from the room. Essentially, they work by taking warm air into a system and dispersing cold air, but there is much more to this process.
It's easy to see why people think of these two things as being so similar, but the key differences are: Refrigeration keeps the cold air close, air conditioning pushes it away. Refrigeration uses coolant alone, air conditioning also uses the air from outside.
Appliances are generally considered to be an individual piece of equipment for use in the home in the performance of domestic chores. By this definition, an air conditioner, a dishwasher, refrigerator or stove would be considered appliances, but a water heater, garbage disposal or a toilet would not.
Air conditioning systems have standard electrical parts that are essential for temperature control, equipment protection and minimizing equipment operation costs. These electric parts vary from wiring to sophisticated control system circuitry.
Soon after Willis Carrier came out with his invention, a mill engineer named Stuart Cramer created a similar device that added moisture to the stale, hot air inside textile plants. He called is invention an “air conditioner” because it conditioned the air to be moist and cool.
Different Types of Air Conditioning Systems