Tuesday, January 15, 2013

HVAC Split System - What Does an Air Conditioning Specialist Do?


HVAC Split System - Residential and Commercial Installation.



An air conditioning specialist installs, maintains, and repairs heating, air conditioning, and refrigeration systems and may work in commercial or residential settings. These specialists are sometimes referred to as heating/ventilation/air conditioning repair (HVACR) technicians or air conditioning technicians. An air conditioning specialist may acquire training from on-the-job experience, an apprenticeship, or through a formal training program. Diagnosing problems, maximizing overall operational efficiency, conducting equipment inspections, and determining fuel or energy consumption is an important part of this job. In order to effect repairs, service contracts and conduct maintenance on various systems, an air conditioning specialist needs to possess some specialized skills and certifications.



HVAC Split System Diagram - Curriculum.




An air conditioning specialist may have years of on-the-job experience and may have learned the necessary skills from the ground up or by working through an apprenticeship program. Apprenticeship programs typically last between three and five years and offer on-the-job training. Some employers prefer that the technicians they hire have completed a formal training program at a technical school, community college, or other training facility. These training programs typically last from six months to two years and provide proper training in HVACR equipment design, construction, installation, temperature control dynamics, and electronics. Other courses concentrate on the maintenance and repair, safety, care of tools, and current regulations regarding the use of refrigerants.


Trane Split System - Experience.




Knowing how to review blueprints, schematics, or other technical diagrams in order to properly effect repairs or maintenance on an air conditioning system is essential. Diagnosing problems, maximizing operating efficiency, conducting inspections, and determining fuel or energy consumption levels are all responsibilities of an air conditioning specialist. An HVACR technician must know how to use specialized equipment like hand tools, diagnostic hardware, and laptop computers in order to diagnose problems and make repairs to a system. Some air conditioning specialists have a working knowledge of the design of modern air conditioning systems. The chemicals used in air conditioning also mean that a specialist should be familiar with the current laws and regulations regarding the proper disposal of chemical refrigerants.


Heat Pump Split System - Continuing Education.




Ongoing training to keep up with the ever-changing technology associated with modern air conditioning, heating and ventilation systems is essential for an air conditioning specialist. Some state and regional authorities require licensure, which involve learning the latest information and passing a written test, for air conditioning specialists. Some specialists have acquired additional certifications that indicate various levels of competence in handling specialized equipment. For example, special certifications is required for handling anything that uses natural gas or a high pressure boiler. An air conditioning specialist may also be required to pass an examination and gain certification to learn the proper handling of refrigerants.


 




AC Split Unit - How Do I Choose the Best AC Thermostat?


AC Split Unit - The basic Function.



The basic function of an air conditioning thermostat is to turn the cooling unit on and off at a preset temperature. Choosing the best air conditioning thermostat depends largely upon your own individual needs, lifestyle, and energy consciousness. Air conditioning thermostats are available in several different styles from basic manually operated models to multifunction programmable types. A simple manually operated air conditioning thermostat works best if you prefer to keep the indoor air temperature at a constant level at all times. Programmable thermostats are a better choice if you are away from home for several hours each day and want to save energy.



AC Split Unit Price - Cooling Control.




In its simplest form, an air conditioning thermostat is a temperature activated device that automatically controls the operation of the cooling unit. The purpose of this device is to maintain a constant indoor air temperature in a home or building. A manually operated model is usually sufficient for this purpose. Many people prefer to raise the air temperature when the home or building is unoccupied to conserve energy or save on cooling costs.


How to Install a Split AC Unit? - Adjustment.




A manually operated air conditioning thermostat can easily be set to a higher temperature when leaving the home or building each day, but you may find that the air is too warm upon returning. You may also forget to make the necessary temperature adjustment before leaving for the day. A programmable thermostat is usually more suitable than a manual model if you wish to make daily temperature adjustments. It can be set to raise the temperature automatically when you leave and lower it shortly before you return. This function conserves energy during unoccupied times and returns the temperature to a comfortable level when or before you return.


Mitsubishi Split Unit AC - Programmable Thermostats.




In addition to raising the air temperature during unoccupied hours, you may also want to adjust it at night while you sleep. Many programmable thermostats are capable of storing multiple settings for both daytime and nighttime hours. A slightly warmer air temperature can be selected during sleeping hours and automatically lowered again before you awake. Some programmable thermostats can also distinguish between days of the week so that different settings are observed on weekends. These models sometimes allow you to override the regular settings if you come home early or for special occasions such as holidays.


 




Monday, January 14, 2013

Air Conditioner Heat Pump - What Is Solar Air Conditioning?


Air Conditioner Heat Pump - Solar Energy?



Solar air conditioning is any technology that uses energy from the sun to cool down the environment inside of a structure. There are a number of ways that solar energy is used to achieve a cooling effect, including adsorption heat pumps and thermal cycling using desiccants. Each of these types of solar air conditioning employ different methods to cool down air using heat energy. Photovoltaic (PV) systems can be used to generate electricity, which can then power any type of traditional air conditioning system. Passive cooling can also be used to reduce the temperature inside a building during warm conditions, though it does not directly use the energy of the sun to cool the structure.



Central Air Conditioner Heat Pump - Sun used to Cool.




One main way that the energy of the sun can be used to cool a structure is solar thermal cooling. These systems typically involve using the sun to heat water or another liquid solution, which passes under solar collectors through a pipe system. This very hot liquid can then be used to extract heat from inside a structure using an absorption or adsorption chiller device commonly known as a heat pump. The liquid can then be recirculated through the system to the solar collectors, heated back up, and passed back into the chiller.


Home Depot Heat Pump - Another form of AC Solar.




Another way that solar air conditioning can be achieved is through the use of desiccants, such as silica gel. In these systems, the silica gel is used to draw moisture out of the air inside a structure. The act of extracting this moisture can also have a cooling effect, resulting in lower ambient temperatures. Heat from solar energy can then be used to warm up the desiccant materials and dry them out. The desiccants are then free to draw more moisture out of the air inside the structure, continuing the cooling effect.


Window Air Conditioner Heat Pump - Passive Cooling.




Passive cooling may not technically qualify as air conditioning and does not actually use the energy of the sun to achieve a cooling effect. This method of cooling structures is typically implemented when a building is designed and constructed. Passive solar building design can keep a structure cooler in the summer months by keeping heat out, but it can also provide warmth in colder months by effectively trapping and storing solar energy.


 




Sunday, January 13, 2013

Ductless Split and Others - What is Room Air Conditioning?


Ductless Split - How about this Alternative?



Room air conditioning, also known as window air conditioning, is a good alternative to central air conditioning for renters who live in older homes or those who have only a small space to cool. Additionally, even though they cost more to operate, room air conditioning units are attractive to those on a tight budget because they have a lower up-front cost. Room air conditioning units can be purchased for as little as $200-$300 US Dollars (USD), while central air conditioning systems cost thousands of dollars to install.



Ductless Split System Reviews - What size do I need?




Window air conditioner units can be purchased at any home improvement store. Although it's natural to assume that bigger is always better, many people make the mistake of purchasing air conditioning units that are too large. If the unit you choose is too large, it will cycle on and off more often than necessary. This will wear down the machine faster and result in a higher energy bill for you. To determine what size of air conditioner you need, look at the size of the area to be cooled. For small rooms of 100 to 150 square feet (30.48 to 45.72 square meters), 5,000 Btu's is sufficient. For a studio apartment of 900 to 1,000 square feet (274.32 to 304.8 square meters), however, you'll need a high-powered unit with 18,000 Btu's.


Lg Ductless Split - What units buy?




When looking for room air conditioning units, consider purchasing a product that is ENERGY STAR® qualified as having met the guidelines set by the US Environmental Protection Agency and the US Department of Energy. These products use 10 percent less energy than conventional room air conditioning units and often include features such as timers that allow for better temperature control when you're away from your home during the day. In this way, ENERGY STAR® products help prevent global warming while saving you money on your home cooling costs.


Sanyo Ductless Split - How hard is the Installation?




Ask a friend to help you install your unit, since many room air conditioners weigh 100 pounds (45.36 kilograms) or more. The unit must be stable and weather stripping should be applied around the area to keep outside air from entering your home. Placing the unit in a shaded location is recommended whenever possible, since this will help it operate more effectively.


 


Once your room air conditioning unit is installed, remember to replace the filters and coils as recommended by the manufacturer. A thorough cleaning is needed once per year to remove dirt, bugs, and leaves. Room air conditioners are louder than central air conditioning systems, so noise does not necessarily mean the unit is broken. However, if you notice it is also cycling on and off too frequently, repairs may be needed.




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.