How do air conditioners cool

This process continues until the inside air of your home or business reaches the desired temperature. When the thermostat senses that the interior temperature is at the desired level, it shuts the air conditioner off. When the room heats up again, the thermostat turns the air conditioner back on until the preferred ambient temperature is achieved again.

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Schedule Installation. Schedule Showroom Appointment. Schedule Maintenance. Instead, they work by removing the heat inside your house and transferring it outdoors. The refrigerant is contained inside coils that travel through a closed system. The coils guide the refrigerant from inside your home to the outdoors and back inside again. Stations along the route manipulate the state, pressure and temperature of the refrigerant so that it absorbs or rejects heat at specific points.

These stations include:. The warm air inside your house is drawn in through a vent and blows over the cold evaporator coil. The evaporator coil is the station located indoors and absorbs heat from the air, cooling the air. A fan blows the cold air into air ducts that distribute it throughout your home. The refrigerant flows back and forth until your home reaches the temperature set by your thermostat. So, why does this matter to you?

Because when these coils get dirty, your air conditioner works less efficiently and costs you more money as a result.

This is partially why you hear people saying you need to get your air conditioner checked at least once a year for a tune-up. Obviously, your air conditioner does not just absorb heat from the air and release it outside. It also has to move the air. This cooled air is then blown through your air ducts, which are connected to all the different rooms in your home. Because there are options for how your air conditioner moves this air. For instance, there are now variable-speed blowers that pick the most suitable speed based on the current conditions instead of constantly turning on and off.

These variable-speed blowers save you money on your electric bill and increase the comfort of your home by circulating your air for longer periods. Hot air can hold more humidity than cold air. Thus the moisture in that air condenses until it turns into water droplets. Recall when we talked about the hot air being blown over the cold evaporator coil.