HVAC Systems



             


Wednesday, February 13, 2008

High Velocity Air Conditioners

High velocity air conditioners work by delivering air into a room at a high velocity (roughly two feet per second). This creates air currents that circulate cooler air throughout the room or entire house.

The high velocity systems have certain advantages and disadvantages over the conventional forced air system. For example, the conventional systems moves air slowly. You really don't feel the circulation and there can be dead spaces in rooms if vents were not placed properly. High velocity systems places vents in more locations; thus, there is a more consistent airflow and temperature throughout the house. However, since conventional systems use larger ducts, more air passes through and they are silent. The high velocity systems use much smaller tubes to circulate air and are nosier. Conventional systems are also easier on your pocket, as tend to last longer because of the metal ductwork, etc. High velocity tubing deteriorates more often than metal ducts and tubing causes stress on the mechanical components of the unit.

On the plus side, conventional systems are more visible in the home than the high velocity. Conventional systems require more space because of the larger vents, and every room needs a supply and return. The high velocity unit requires much less space and can be set up in one area for the supply and return requirements. Also, the high velocity system is less expensive than the conventional one.

Finally, keep in mind that central cooling systems are not easy to install. There is generally a problem with any installation. Any errors in installation can cause major problems and a major impact on your electric bill. Make sure you get plenty of bids and pick a contractor that you have faith in. The contractor should be experienced and offer you references to check out the work that has been done.

Air Conditioning provides detailed information on Air Conditioning, Air Conditioning Repairs, Central Air Conditioning, Auto Air Conditioning and more. Air Conditioning is affiliated with Chiller Rentals.

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Tuesday, January 29, 2008

Portable Air Conditioners Review

When most people think of portable air conditioners, what comes to mind is usually basic information that's not particularly interesting or beneficial. But there's a lot more to portable air conditioners than just the basics.

With the onset of the damp weather, it becomes difficult to survive without constant central air conditioning but that can prove to be quite expensive. The answer to this problem is a portable air conditioner as it has many advantages. It is easy to shift from one place in the home to another and that makes a portable air conditioner the ideal cooling system solution for your home, office or industrial site.

The portable air conditioners are easy and quick to install, as they do not involve any lifting or tearing up of windowsills. Moreover it can be shifted very easily from one place in the home to the other. For taking care of the hot spots in the central air conditioning, the portable air conditioners are far more convenient than window air conditioners. It is also ideal for window shapes, which present problems for installation. There is nothing like portable air conditioners for use as a spot cooler in the home.

A portable air conditioner is an excellent choice for saving money as just one unit needs to be purchased and it can be shifted easily to where you need it as it is mounted on castors and some can weigh only about 36 pounds. Moreover, as only one room is cooled at a time instead of the whole house, the total energy consumption is very low as compared to other air conditioning systems.

How can you put a limit on learning more? The next section may contain that one little bit of wisdom that changes everything.

Another advantage of portable air conditioners is the energy efficiency that they provide. The average efficiency is in the 8 to 10 range although some are as high as 15, which is 50 percent better than most older central air conditioners. The small size of the portable air conditioners is very advantageous and as such it can fit in a corner or against a wall. It functions like an effective dehumidifier if you do not vent the warm exhaust air out through a window and its size is also the same as that of a room dehumidifier.

In order to reduce humidity and allergies, even the small ones remove 35 pints of moisture per day from the room air. The portable air conditioners also use the heat-exchange principle as the other air conditioners to cool and dehumidify the air. The operating principle is also similar to a window air conditioner as the room air circulates over cold evaporator coils to cool and dehumidify it inside the unit. The room air is exhausted outdoor after flowing over the hot condenser. There is no chance of already-cooled indoor air escaping outside as two ducts are now used.

Nowadays, you have electronic controls in most models and you can set the desired room temperature, blower speed, start and stop timer, and operation mode (cool, dehumidify, heat). The portable air conditioners also have hand-held remote control with which you can conveniently change all the settings as per your need.

The other features of portable air conditioners include a built-in air cleaner with an optional charcoal filter and oscillating louvers to distribute the cool air throughout the room. You can also switch off the louvers to direct the flow of air towards yourself, if you so desire. The day will come when you can use something you read about here to have a beneficial impact. Then you'll be glad you took the time to learn more about portable air conditioners.

Masni Rizal Mansor provide tips and review on portable air conditioners, Carrier air conditioners and central air conditioners.

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Wednesday, December 5, 2007

HVACR Careers - School and Job Information

 

Careers in HVACR ? Education and Training for Success

What is HVACR?

The "Heating-Ventilation-Air Conditioning-Refrigeration"(HVACR) industry manages indoor environments. The HVACR industry covers the comfort systems - heating, ventilation, air conditioning and refrigeration - that our society depends on year around. The heating and cooling industry is a $150 billion a year business that employs many people and more skilled people are needed to fill the increasing demand. The HVACR industry works on issues that affect our environment such as indoor air quality and protecting the earth's ozone layer through refrigerant recovery.

Where do HVACR people work?

  • Sports arenas
  • Shopping malls
  • Theaters
  • Office and apartment buildings
  • Private homes
  • Factories
  • Grocery stores
  • Industrial plants
  • Hospitals
  • Homes

Technical Jobs are the Fastest Growing Segment of the Economy

Jobs in the $150 billion a year HVACR industry are predicted to increase throughout the end of this decade and throughout the twenty-first century, as demand grows for new industrial, commercial, and residential climate control systems. To maintain or replace older comfort systems, additional new jobs will be created.

The HVACR industry offers well-paying jobs, ranging from a $29, 500 salary for beginning technicians with a two-year Associates Degree to a $40,000 salary for B.S. Graduates with a four-year technical degree. Sales and business HVACR jobs offer similar compensation.

Why is HVACR important in our daily lives?

  • In the home people depend on air conditioning and heating to keep comfortable.
  • Electronic and computer manufacturers need cool, clean, and very dry air for their products.
  • Hospitals, day care centers, and community centers depend on HVACR equipment to maintain comfortable temperatures and good air quality.
  • Research labs, medical manufacturers and food preparation companies need HVACR equipment to ensure that their products are pure and safe.
  • Farmers, livestock shippers, and fruit growers rely on refrigerated trucks, warehouses, and display cases to keep their products fresh.
  • Printers use high-speed, multicolor printing equipment that requires strict humidity control to ensure product quality.

What education and training is needed?

To get started in the HVACR field, you should enroll in the following courses in high school:

  • Computer Applications
  • CAD - Computer-Aided Design
  • Business
  • Sales and Marketing
  • Air Conditioning
  • Math - algebra and geometry
  • Sheet Metal
  • Electricity/electronics
  • Mechanical Drawing
  • Blueprint reading
The stronger your training, the greater your chances for advancement in the field! After graduating from high school, you can get additional training at a local community college or at a university.

Scholarships & Loans: Most schools can help you finance your college education through scholarships and loan packages.

100% Job Placement: Look for two-year associate programs or colleges and universities with high rates of job placement. Often they can find jobs for 100% of their HVACR students.

For more information on becoming an heating technician or air conditioning technician please visit our school at rel="nofollow" href="http://www.refrigerationschool.com">http://www.refrigerationschool.com

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