An air conditioner is a machine that makes cold air to be cooler than the surrounding air. It does this by using refrigerant to take the heat out of the air, and then releasing it. The refrigerant cools the air and makes it less dense, thus lowering its temperature.
The compressor in an AC unit works like a bicycle pump. It takes in high-pressure gas from the condenser and releases low-pressure gas that’s cooled to about 32 degrees Celsius (90 degrees Fahrenheit). This newly created low-pressure gas disperses through the room and sucks up warm air from outside, which is then expelled through vents.
AC units come in all shapes and sizes, but they all work basically the same way. In order to choose the right AC unit for your home, you’ll need to take into account things like your room size and number of windows. You can also consult a HVAC professional to get an estimate on what kind of AC unit will work best for you.
There are a few different types of AC units, each with its own strengths and weaknesses.
Here’s a rundown of the most common types:
Central AC Units: These are the most popular type of AC unit, and for good reason. They’re compact, easy to use, and generally maintenance-free. Central AC units typically require an electrical connection to your house, but they can also be powered by batteries (if you have a solar panel).
Window AC Units: Window AC units are usually smaller than central AC units, and they’re designed to operate exclusively through windows. They tend to be more expensive than central AC units, and they may not work as well in cold weather (because they don’t generate as much heat).
HVAC Unit: HVAC (heating, ventilation, and air conditioning) units are the biggest and beefiest type of AC unit. They’re typically used in larger homes or businesses, and they can be quite expensive. HVAC units typically require an electric connection to your house, but some models can also be powered by batteries (if you have a solar panel).
Common AC Problems And How to Fix Them
A common problem with air conditioners is that they stop working.
Here are some tips on how to fix common AC problems and get your air conditioning back in action:
Check the filters. Dirty or old filters can cause your AC to work less efficiently and create more noise. Replace the filters every month if you can, or every six months if you cannot.
Test the AC unit. If it’s not blowing cold air, check to see if it’s plugged into an outlet and turned on. If it’s not, flip the breaker switch off and on again to make sure it’s getting power. If the AC still doesn’t work after trying these things, call a technician.
Clean the condenser coils and evaporator coil(s). These will help your AC run more efficiently by eliminating debris and dust build-up that can block heat from reaching the coils (evaporator coil(s) in particular). Use a cloth soaked in cool water and dishwashing detergent; wring out well before using. Be careful not to spray water into any electrical connections! Dry the coils with a fresh cloth before re-applying sealant or coverings.