Sunday, January 13, 2013

Air Conditioning Heat Pump - What are Air Conditioning Filters?


Air Conditioning Heat Pump - Devices much Needed.



Air conditioning filters are devices that keep dust and dirt from both clogging the air conditioning system and contaminating the air. In a building, the filter is usually inserted into the large air return duct. As air is pulled through the filter, dust and dirt are trapped in the fibers. A good filter can also be responsible for trapping allergens. All filters need to be cleaned or replaced regularly.



Central Air Conditioning Heat Pump - Types and Sizes.




It is important to ensure air conditioning filters are clean and are the right size for the air conditioning unit. A filter that is too small or a filter that is dirty can have several adverse effects. Effects include raising the amount of power the unit consumes, reducing cooling or heating, and contributing to the unit’s failure. The right filter will help keep the air and the air conditioning system clean and functioning properly.


 


There are several types of air conditioning filters. The first type is the fiberglass filter. It is the cheapest and typically only traps large particles, leaving smaller particles to travel through the air. These filters are not made to be cleaned but instead must be replaced. It is important to make sure these filters are not in use while they are dirty because it may cause the system to overwork.


HVAC Heat Pump - Functional Materials.




Pleated fiberglass air conditioning filters are more efficient at trapping dirt. The material it uses is more densely woven together. Thus as air passes through the fibers, more dust and dirt are able to be trapped. The surface of these filters is also pleated which increases the surface area. This means that a pleated filter will be able to trap more dust than a flat filter of the same size.


 


Permanent mesh air conditioning filters can be made from different types of material. As such, their effectiveness can vary. These filters, however, are washable. After washing, some must be sprayed with adhesive to trap dust and dirt. They may also need to be changed eventually because of wear and tear.




Air Conditioning Geothermal - Electrical Filters.



Electrostatic air conditioning filters are made from material that produces a charge when air passes through it. This charge attracts dirt and dust from the air and holds it to the surface until it can be washed off. Electric air conditioning filters are similar except it uses an electrical power source to do its work. It is composed of a pre-filter and a main filter that work together to filter the air. The pre-filter traps large particles, and the main filter traps smaller ones.


Heating Air Conditioning Units - What Is an Diffuser?


Heating Air Conditioning Units - The work of the Diffuser.



An air conditioning diffuser distributes air from a home cooling system into each room of the home. The diffuser fits into the walls or ceiling at the end of the air conditioning duct, and serves as a vent for cooled air to enter the room. Each occupied room requires its own air conditioning diffuser, though some smaller areas may share a single diffuser. While these devices appear relatively simple, they must be carefully selected to suit the size and design of the home's cooling system.



Heat Pump Air Conditioning Units - Labor Installers.




Installers can choose from a variety of air conditioning diffuser types to meet the needs of different applications. Square or rectangular diffusers are among the most common, and are well-suited to both large and small rooms. Round or spiral models generate a very large circular air distribution, making them best suited to very large spaces. In smaller rooms, round diffusers will likely create uncomfortable drafts, resulting in ineffective cooling.


Heating Air Conditioning Window Units - Diffusers Design.




A linear or slot air conditioning diffuser also represents a popular and effective option for most applications. These units feature a long, narrow design with fins that direct air where it's most needed. Linear diffusers are often installed around the perimeter of a room to resolve potential issues with condensation as they distribute cooled air. Other forms of diffusers may be installed in walls, ceilings, or even the floor, depending on building design.


 


The size and design of each air conditioning diffuser should match the fan speed of the cooling unit, as well as the desired temperature range in each room. Some units come with adjustable fins so users can adjust airflow throughout the day. Others can be completely shut to prevent any air from entering the room.




Heating Heat Pumps - Variety of Finishes.



Properly-sized air conditioning diffusers maximize the effectiveness of a building's cooling system. This not only improves occupant comfort, but eliminates issues with drafts or humidity in many cases. By making the cooling system as effective as possible, diffusers also help to keep cooling bills low and improve overall energy efficiency. A well-chosen diffuser also reduces noise created by the air conditioning system operation.



Diffusers come in a variety of finishes to match the surrounding décor. Some are made from steel or aluminum, while others are made of brass or other metals. Many of these metal units are sold primed for painting so they can be matched to any type of finish. Plastic units offer an affordable alternative to metal diffusers, but are often more difficult to paint.

Split Ductless Air Conditioning - How Do I Learn AC Repair?


Split Ductless Air Conditioning - Repair Classes.



Learning air conditioning repair can be done by taking classes at a community college, trade school, or possibly even the military. The U.S. military does offer air conditioning repair as part of its vocational training program as well. The other option is to gain employment with a company specializing in repair of heating, ventilation and air conditioning (HVAC), and learn from a more experienced repairer. This, effectively, is an apprenticeship.



Less Air Conditioning - Access to this Field.




In many cases, it may take less than two years of study to learn air conditioning repair at a vocational school. These schools often have the advantage of offering job placement services. Further, they may not only offer classes in air conditioning repair, but also refrigerator repair, and auto air conditioning repair. These systems are all quite similar in operation. Therefore, once the theory is learned, applying that theory to the different types of cooling units becomes easier.


Fujitsu Ductless Split Air Conditioning - Practical Experience.




The benefit to the classes is that, while the theory is nearly the same, the practical application of that theory may be less intuitive. Accessing certain parts in the unit, whether it is a building air conditioner, auto air conditioner or refrigerator, may be a little more difficult. The value in the class is getting practical experience by working with these different units in different situations under the supervision of a qualified teacher.


Mitsubishi Split Ductless Air Conditioning Systems - Finding a Job.




For those who want to enter the workforce right away, finding a company willing to hire an HVAC repairman without experience may be possible. Getting hired may be difficult, as the company will likely realize it will take some time before they realize a return on their investment. Those who attempt this should have an inclination for mechanical things and stress to a prospective employer what other kinds of mechanical repair experience they may have.


 




Friday, January 11, 2013

Heating Cooling Systems - What is an Air Conditioning System?


Heating Cooling Systems - Reference of the Term.



Air conditioning is a term referring to any process or system that controls the temperature, humidity, cleanliness, and movement of indoor air. When the weather is hot, it cools the air. When the weather is cold, it warms the air. It also adds or removes moisture to and from the air as needed. By controlling air movement, air conditioning is able to remove dust and dirt by bringing fresh air into a space and pushing stale air out. An air conditioning system is any mechanism designed to stabilize and control the condition of the air in a given space, most commonly in buildings, cars, and other forms of public and private transportation.



Solar Heating Cooling Systems - The first Way Known.




The first known form of air conditioning is said to have been developed in Ancient Rome. Aqueduct water was circulated within the walls of luxurious Roman estates to keep them cool.


 


A different system was used in medieval Persia, involving the use of pools and fans. Cisterns, or large man-made pools, were placed in central locations such as courtyards to catch rain water. As the water evaporated, it cooled the air around it. Wind towers were then used to blow the cool air and circulate it throughout the surrounding buildings. The first ventilators were supposedly invented in medieval Egypt, with some historians claiming that at one time nearly every home in Cairo had one.



Electric Heating Cooling Systems - The first Air Conditioning.



The type of air conditioning system found in most homes today is derived from a model invented in 1902 by a man named Willis H. Carrier. A research engineer, Carrier developed the system as a means of regulating the temperature and humidity in a printing plant in order to provide the best possible atmosphere in which to process paper and ink.


 


The idea soon caught on elsewhere, finding profitable use in the private sector as well as the world of industry. In 1906, a textile engineer named Stuart W. Cramer used the term "air conditioning" for the first time. It wasn't long before Carrier applied the term to his own invention. Thus, the first modern air conditioning system was born. Or at least christened.


Geothermal Heating Cooling Systems - Where do we use it?



Every air conditioning system is designed to perform in one of two capacities: comfort or industry. Those designed for comfort can be found in homes, restaurants, cars, airplanes, trains, ships, buses, and hospitals. It is also worthy of mention that pleasurable temperatures are not the only comfort these systems offer. They can relieve the discomfort of allergies by removing pollen from the air, make long commutes less taxing on drivers and passengers alike, and even help to preserve the health of patients in hospitals.


 


In business and industry, air conditioning systems can improve the efficiency of workers, ensure uniformity in metal work, prevent too much or too little moisture from damaging fragile paper products during manufacture, and keep food fresh during longs periods of shipment and storage.

Split System HVAC - What is an Air Conditioning Compressor?


Split System HVAC - Part One.



An air conditioning system has several parts that assist in the cooling of air. These parts are the compressor, the condenser, and the evaporator. An air conditioning compressor is the part of the air conditioning system that compresses cool, low pressure gas into a hot, high pressure gas. The compression of this gas is the first part in a multi-step process that helps keep the area cool. Though the compressor is an important part of the air conditioning system, if any one of these parts fail, the unit will fail.



Split System Heating and Cooling - Compress the Gas.




A properly working air conditioner starts with low pressure gas traveling into the air conditioning compressor. The compressor compresses the gas into a high pressure gas with a higher temperature. This is why it is called an air conditioning compressor. At this point, the gas must be cooled down. This is when it travels to the condenser.


 


In the condenser, the gas is cooled into a liquid still under high pressure. After this, it travels to the evaporator. In the evaporator, the liquid is squeezed through a small hole and into tubing. In this tubing, the liquid uses the heat from the room to be cooled in order to turn back into a gas. The low-pressure, cool gas is then transported back to the air conditioning compressor to start the journey all over again.



Split System Heat Pump - Liquid to Solid.



The fluid used in an air conditioning compressor is a gas with a low boiling point that easily converts from a liquid to a solid. These fluids are called refrigerants. The refrigerant of choice used to be freon, however, when freon escapes into the atmosphere, it contributes to the deterioration of the ozone layer. As such, more ozone-friendly fluids have come into use. 



Ductless Air Conditioning. Essential Part.




Air conditioning compressors are an important, and potentially expensive, part of an air conditioning system. Changing or cleaning the air filter is an easy step that can be taken to extend the life of the compressor. The filter should be the appropriate size and fit properly into the intake vent. It should also be kept as clean as possible. Most filters are made to be replaced once every two months or as needed.


 


Heater and Air Conditioner - British Thermal Unit.


Heater and Air Conditioner - Basic Measure.



A BTU, short for British Thermal Unit, is a basic measure of thermal (heat) energy. One BTU is the amount of energy needed to heat one pound of water one degree Fahrenheit, measured at its heaviest point. In other words, if you placed 16 ounces of water at 59°F into a stovetop pan and turned on the gas burner, it would take one BTU to raise the temperature of the water to 60°F. As more BTUs continue to flow from the gas flame, the water will eventually reach the boiling point of 212°F.



Water Heater Air Conditioner - Equivalent Measure.



A BTU is also the equivalent of 252 heat calories, not to be confused with the kilo-calories of food, and of approximately a third of a watt-hour. When speaking of cooling power, the BTU also works in reverse. The air-cooling power of an air conditioning system refers to the amount of thermal energy removed from an area. Hence a 65,000 BTU heater and a 65,000 BTU air conditioner are of roughly the same capacity and size. The higher the BTU output, the more powerful the heating or cooling system.


Portable Heater Air Conditioner - Necessary Measure.



Strangely enough, the British Thermal Unit is rarely used in Great Britain anymore, where it is considered a non-metric measurement. Even in countries which use the BTU as a standard measurement, there is some disagreement over the formula used to derive it. The thermal energy needed to raise water one degree Fahrenheit can depend on the original temperature and the method used for heating. Therefore, it is possible to get several different definitions of a BTU from different sources. This rarely has a palpable effect on consumer product information, however.



Heater and Air Conditioner Wall Unit - Weatherization Measure.



Most heating and cooling systems produce thousands of BTUs, almost rendering the measurement of one BTU pointless. One is more likely to encounter smaller BTU figures during scientific experiments, where the slightest change in thermal energy may need to be calculated in terms of calories. When dealing with central air conditioning units and commercial pizza ovens, however, the BTU numbers can easily reach the hundreds of thousands. A unit of measure called the MMBTU is the equivalent of a million BTUs. Few man-made objects can generate this level of thermal energy, however.



When shopping for heating or cooling systems, keep in mind that even the smallest window-mounted air conditioner or space heater can produce thousands of BTUs. The BTU numbers should primarily be used as a comparison between systems. Larger and more expensive systems should provide significantly higher BTUs than smaller ones. When deciding between similarly priced units, compare the BTUs for a better gauge of performance.

Types of Air Conditioning Systems - What is Ductless AC?


Types of Air Conditioning Systems - Different Central Air.



Ductless air conditioning is a system of cooling the home without the use of central air duct systems. While this can be achieved using window-mounted units, a more efficient technique involves the use of split system air conditioning units. These are a type of ductless air conditioning made up of two components: an indoor fan unit used to disperse cool air, and an outdoor refrigerant unit which cools air and disposes of condensation. A series of flexible lines connect the two units, allowing electricity, refrigerant, and condensate to run between the indoor and outdoor units.



Chilled Water Central Air Conditioning Systems - Mini Split and Multi Split.




Split system ductless air conditioning units are generally designed to cool a single room, though some are equipped with multiple fan units that connect to a single outdoor condenser. In this case, a fan can be placed in several rooms, though all are controlled by the same thermostat. The fan on a ductless air conditioning system can be mounted in the wall, within a drywall ceiling, or in a soffit. These fan units are generally small and unobtrusive, and many offer decorative grilles and covers to help them blend into a home's décor.


Types of Air Conditioning Systems in Buildings - Multiple Uses.




These split air conditioners are used in a variety of settings. First, they may be used in homes that are not equipped with a central duct system, or those that have heating ducts but no central air system. Not only is ductwork itself expensive, but one must often remove and replace walls and ceilings to accommodate new ducts, which can be both costly and messy. These units are especially beneficial in cooler climates, where air conditioning is only used for a few months out of the year. Ductless air conditioners are also useful for cooling a garage or home addition without extending the existing duct network.


Central Air Conditioning Plants - Advantages against other Systems.




There are several benefits to using a split air conditioning system instead of another type of unit. First, the cost of a split system is much lower than a ducted system as there is no need to install and maintain ductwork. Because ductless air conditioning systems run on a thermostat, they offer a high level of energy efficiency, and can maintain a steady temperature. Cold air is directed into the room where it is needed, and is not wasted on unoccupied rooms. Finally, these split systems are quieter and more efficient than window units, and do not have to be removed and reinstalled at the start and end of the summer season.