What Are the Main Parts of Your Heating Air Conditioning Unit?
It could be worthwhile to invest in a replacement unit in the event that your home’s air conditioner is a bit old and in need of repairs. A residential HVAC expert can help you select the right solution for your needs.
Most cooling systems rely upon electricity to cool and heat homes, however some, such as propane or gas-powered air conditioners use natural gas to fuel furnaces and run condensers in a split system.
Evaporator
An evaporator coil is the part of your air conditioner that cools your home. The evaporator can be found in a box connected to your gas furnace, or inside it (if you have one). If you don’t have one, the coil is located in an air handler. The evaporator is where the refrigerant liquid transforms into a gas and absorbs heat from your home’s indoor air.
The evaporator is comprised of one or more copper coils that are tightly packed. The refrigerant has a low pressure when it gets to the coils, making it easier to transfer heat.
A fan blows your home’s warm air through the coil of the evaporator. The air is then cooled through the removal of heat from the evaporator, which alters the refrigerant’s temperatures and lowers the temperature of your home’s air. The cool air is circulated through the ductwork in your home to each room.
In contrast to the compressor, which requires to produce refrigerant gas in high temperatures to allow efficient cooling, the evaporator has to bring its boiling point to a low temperature for effective air cooling. The evaporator is also equipped with its own fans to help it to achieve this objective.
The evaporator metering system ensures that the refrigerant used in the liquid is always at a constant level. The low-side float is designed to be open when there’s no liquid in the evaporator, and closes when it sees liquid enter the coils.
There are two kinds of evaporators, cased and noncased. The most popular type of evaporator in your home is a cased model. It is enclosed within the casing made of metal that covers your air conditioning unit. Uncased evaporators are similar but it doesn’t have the protective outer shell.
While both evaporators serve the same purpose, it’s crucial to select one that is able to meet the specific requirements of your home. For example, some models are better suited for extreme working environments, while others are more suitable for milder conditions. It is also important to consider how easy it will be to clean and maintain the evaporator since this could save you time, money and effort in the long run.
Condenser
The condenser is one of three main components of the air conditioning system in your home that help keep it working efficiently. The condenser is outside the house and connected to the evaporator by refrigerant pipes. It has metal fins and fans that help remove heat from the refrigerant which was transferred from the evaporator. The heat removed from the refrigerant gas helps it to cool and turn back into liquid form.
A compressor is connected to the condenser unit and works to pressurize the low-pressure refrigerant liquid that has been taken from the evaporator coil. The compressor’s squeeze action increases the temperature, which is then transferred to the condenser unit to absorb the heat that is trapped in the air. After the cooling cycle is complete the refrigerant will be pushed into the compressor to be pressurized before being pumped back to the evaporator coil.
The condenser unit is exposed the elements because it is outside. Debris such as twigs, grass clippings, leaves, and roofing shingles too can fall into the condenser unit, causing damage to it. By adding an universal HVAC condenser cover to your heating and cooling system can help safeguard the equipment from damage when it’s not in use.
It is also important to avoid shading the condenser. This can impede air flow and make the compressor work harder to cool your home. This could result in more energy costs and a possibility of losing refrigerant.
Regular maintenance will ensure that your HVAC system is operating efficiently. Regularly having a professional technician inspect all major components of your HVAC system will help prevent major problems. A professional service team can also avoid problems by checking regularly the refrigerant levels. By following these easy steps, you’ll be able to extend the life of your cooling and heating system and lower the cost of energy.
Compressor
A compressor is the core of your air conditioning unit and it pumps refrigerant throughout the system to keep everything cool. It’s similar to the blood of your body when it pumps coolant between the evaporator coils and condenser. If something goes wrong with your compressor, it will stop the evaporator and condenser from completing their tasks and will leave your home uncomfortably warm.
There are a variety of types of HVAC compressors. Each one comes with its own advantages and disadvantages. A reciprocating compressor, as an example is one that has a piston moving up and down in the cylindrical. This produces a suction that draws in the refrigerant. When the piston is moving downwards it reduces the gas volume. A discharge valve opens to let the pressurized refrigeration into the condenser.
This type of compressor is also equipped with a clutch, and a crankshaft that aids the piston compress air. A Rotary compressor, on other side, has blades within the cylinder that help to compress the air. This kind of compressor is quiet, making it an ideal option for homes with a small space.
Both kinds of HVAC compressors are designed to raise the temperature of the liquid refrigerant while it is compressed, ensuring that the vapor that leaves the compressor is high-pressure and high-temperature. Since heat naturally flows from higher-temperature substances to lower temperature ones, the hot vapor is able to move into the evaporator coils before it can transform back to its liquid state.
While you cannot avoid the occasional problem with the compressor, you can prevent the majority of AC problems by staying on top of your maintenance schedule. This will ensure that your equipment will last for a long time and it will provide you with peace of mind knowing your home is always comfortable. Griffith Energy Services can help you decide on the best repair options if you are experiencing a problem with your compressor.
Thermostat
The thermostat is the brain of your cooling and heating system, allowing it to regulate the timing and manner in which it turns off and on. It reads the air temperature and compares it with an established desired level. If it is off by just a few degrees it will send an electronic signal to bring it to bring it closer to the desired temperature. The majority of modern thermostats employ the digital sensor, also known as the thermistor, which measures the temperature. The thermistor is composed of two different metals that expand at different rates when they get hot, causing them to bend in opposite directions. When the thermistor reaches the temperature it was set to it sends a signal to the circuit board that heating or AC should be switched on.
The latest models of thermostats feature touchscreens that make them easy to operate and program. They are often programmed to automatically heat or cool your house at specific time frames, which avoids the headache of having to set it each day. In addition, they provide reports on energy usage to help you figure out how to reduce costs.
If you have an older electromechanical model, the way that it works is a little more complex. It is made up of a bimetallic strip which is bonded to a vial using mercury. When the temperature changes it causes the mercury inside the vial to tilt in a way, interrupting or completing an electrical circuit. When the vial is tipped, it triggers the thermostat to turn on the heating or cooling system.
To keep your thermostat in good condition You must clean it regularly to remove any dust that has built up. Also, make sure it isn’t bent or loose. In some instances, the thermostat’s readings could be incorrect due to a dirty or damaged evaporator coil. If that is the scenario, you’ll have to contact a professional to fix it for you. If the problem is something else, like blank screens, you can try changing the batteries or ensuring that the breaker hasn’t been tripped. This is a good example of how your HVAC system will be more efficient if you take the time to research it and optimize its use.