What Are the Main Parts of Your Heating Air Conditioning Unit?
It might be worth investing in a replacement unit in the event that your home’s air conditioner is old and in need of repairs. A residential HVAC expert can help you choose the right option for your home.
Most cooling systems rely upon electricity to cool and heat homes, however some, called propane or gas-powered air conditioners use natural gas to fuel furnaces and run condensers in split systems.
Evaporator
The evaporator coil of your air conditioner is what cools your house. The evaporator coil is located in a box attached to or inside your gas furnace (if you have one) or in an air handler, in the absence of. The evaporator is the place where the refrigerant is transformed into a liquid and absorbs heat in your home’s air.
The evaporator has one or more copper coils tightly packed. The refrigerant has a low pressure when it gets to the coils, which makes it easier to transfer heat.
A fan blows warm air that is escaping your home over the coil that is used to evaporate. This air is cooled as heat is taken away from the evaporator. This lowers the temperature of your indoor air. The cooled air is then moved through your home’s ductwork system to each room and circulates until it is returned to the air conditioning system through return ducts.
Unlike the compressor, which has to create refrigerant gas at extremely high temperatures to ensure efficient cooling, the evaporator needs to bring its boiling point to a low temperature to ensure that it is cooling effectively. The evaporator has its own fans in order to accomplish this objective.
The metering device of the evaporator assists to ensure that the refrigerant is at a constant level of liquid within it. The float on the low-side is designed to be open when there’s no liquid in the evaporator and it closes when sees liquid enter the coils.
There are two kinds of evaporators: cases and uncased. The most common kind of evaporator you can find in your home is a cased model. It is housed inside the metal casing that protects your air conditioning unit. Uncased evaporators are similar to cases, but they do not have an outer shell with protection.
While both evaporators serve the same purpose, it’s crucial to select a model suitable for the specific requirements of your home. For instance, some models are better suited to harsher working environments, while others are better suited for milder conditions. Consider how easy it is to clean and maintain your evaporator. This can help you save time, money and effort.
Condenser
Condensers are among the three main components of your home’s cooling system. They assist in making it operate efficiently. The condenser is outside the house and connected to the evaporator via refrigerant pipes. It is comprised of metal fins and fans that help remove heat from the refrigerant which has been transported from the evaporator. The heat removed from the refrigerant gas allows it to cool before turning back into liquid form.
A compressor is attached to the condenser unit. It helps to pressurize the low pressure liquid refrigerant that has been taken from the evaporator coil. The compressor’s squeezing action increases the temperature, which is passed into the condenser to absorb the heat that is trapped in the air. After the cooling cycle, the refrigerant is pushed back into the compressor where it is again pressurized before being pumped into the evaporator coil, where the process begins again.
The condenser unit is exposed to elements since it is outside. Debris like twigs, grass clippings, leaves, and roofing shingles too can get into the condenser unit and damage it. By adding an universal HVAC condenser cover to your cooling and heating system can help safeguard the equipment from accidental damage when it isn’t in use.
It is also essential to avoid shading the condenser. This can decrease the flow of air, causing the compressor to work harder to cool your home. This could result in increased energy costs and possible loss of refrigerant.
Regular maintenance of your HVAC system can help ensure that the condenser is operating properly. A professional service technician inspect all of the major components of your system on a regular basis will assist in preventing any major problems from occurring. Additionally, having an expert service team monitor the refrigerant levels on a regular basis can also help to prevent any problems from developing. By following these simple steps, you can help to extend the life of your cooling and heating system and reduce your energy costs.
Compressor
A compressor is the center of your air conditioning unit, and it circulates refrigerant through the system to keep it cool. You can think of it like the blood in your body, since it moves the coolant back and forth between your evaporator and condenser coils. If something goes wrong with your compressor, it can stop the condenser and evaporator from doing their job and will make your home uncomfortably warm.
There are a variety of types of HVAC compressors. Each comes with its own advantages and disadvantages. For example, a reciprocating compressor has a piston that moves upwards and downwards within the cylinder. This action creates suction which draws in refrigerant. When the piston is moving downwards it decreases the volume of gas. A discharge valve then opens to let the pressurized refrigeration to the condenser.
This kind of compressor also comes with a clutch and a crankshaft that helps the piston to compress air. A Rotary compressor, on other hand, has blades inside 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 refrigerant liquid when it is compressed, so that the vapor that leaves the compressor is high-temperature and high pressure. It is normal for heat to flow from high-temperature materials down to lower temperature substances which is why the hot vapor moves to the evaporator before returning to its liquid state.
While you can’t prevent the occasional problem with the compressor, you can stop the majority of AC issues by staying on top of your maintenance schedule. This will ensure that your AC will last for years and give you peace-of-mind knowing that your home will remain comfortable. Griffith Energy Services can help you determine the best repair options should you are experiencing a problem with your compressor.
Thermostat
The thermostat is your heating and cooling system’s brain and it determines the frequency and manner in which the system turns on and off. It compares the temperature of the air to a set desired temperature. If it is off by a few degrees, the thermostat will send an electronic signal that changes it to bring it closer to the desired temperature. The majority of modern thermostats monitor temperature using a digital sensor known as a thermosistor. The thermistor consists of two different metals that expand at different rates as they heat up and cause them to bend in opposite directions. When the thermistor reaches the temperature set, it signals to the circuit board that your heating or AC should be turned on.
The latest models of thermostats feature touchscreens that make them simple to operate and program. A lot of thermostats are programmed to automatically heat and cool your home at specific times. This means you don’t have to worry about having to manually set them every day. They also provide reports on energy usage so that you can discover ways to reduce expenses.
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 attached to a vial with mercury. If the temperature changes the mercury in the vial moves, either complete or breaking a circuit. When the vial tips the thermostat, it turns on the heating and cooling system.
To keep your thermostat in good condition You must clean it regularly to remove any dust that has accumulated. Also, make sure that it isn’t bent or loose. In some instances, the thermostat’s readings may be inaccurate due to a dirty or damaged evaporator coil. In that case, you will need to call an expert to fix the problem for you. If the issue is something else, such as blank screens it is possible to try replacing the batteries or ensuring that your breaker hasn’t been tripped. This is a good example of how you can make your HVAC system more efficient by gaining knowledge about it and optimizing its use.