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HVAC (pronounced either "H-V-A-C" or "H-vak") is an initialism or acronym that stands for "heating, ventilating, and air conditioning". HVAC is sometimes referred to as climate control and is particularly important in the design of medium to large industrial and office buildings such as skyscrapers and in marine environments such as aquariums, where humidity and temperature must all be closely regulated while maintaining safe and healthy conditions within. In certain regions (e.g., UK) the term "Building Services" is also used, but may also include plumbing and electrical systems. Refrigeration is sometimes added to the field's abbreviation as HVAC&R or HVACR, or ventilating is dropped as HACR (such as the designation of HACR-rated circuit breakers). Heating, ventilating,and air conditioning is based on the principles of thermodynamics, fluid mechanics, and heat transfer, and on inventions and discoveries made by Michael Faraday, Willis Carrier, Reuben Trane, James Joule, William Rankine, Sadi Carnot, and many others. The invention of the components of HVAC systems went hand-in-hand with the industrial revolution, and new methods of modernization, higher efficiency, and system control are constantly introduced by companies and inventors all over the world. The three functions of heating, ventilating, and air-conditioning are closely interrelated. All seek to provide thermal comfort, acceptable indoor air quality, and reasonable installation, operation, and maintenance costs. HVAC systems can provide ventilation, reduce air infiltration, and maintain pressure relationships between spaces. How air is delivered to, and removed from spaces is known as room air distribution. In modern buildings the design, installation, and control systems of these functions are integrated into one or more HVAC systems. For very small buildings, contractors normally "size" and select HVAC systems and equipment. For larger buildings where required by law, "building services" designers and engineers, such as mechanical, architectural, or building services engineers analyze, design, and specify the HVAC systems, and specialty mechanical contractors build and commission them. In all buildings, building permits and code-compliance inspections of the installations are the norm. The HVAC industry is a worldwide enterprise, with career opportunities including operation and maintenance, system design and construction, equipment manufacturing and sales, and in education and research. The HVAC industry had been historically regulated by the manufacturers of HVAC equipment, but Regulating and Standards organizations such as ASHRAE, SMACNA, ACCA, Uniform Mechanical Code, International Mechanical Code, and AMCA have been established to support the industry and encourage high standards and achievement. From Wikipedia under the
GNU Free Documentation License recruiting for hvac jobs? Q. We have a small heating and air conditioning business in South Seattle and have more work than employees. How do you find and recruit skilled workers in the hvac (heating, ventilating and air conditioning) industry? Asked by lindasarahhayes - Thu Jul 6 13:35:30 2006 - - 3 Answers - 0 Comments A. I am able to design hvac systems I don't come cheap though. You could also check with your local trade school. Answered by Kent @ pizza hut 316-755-2313 - Thu Jul 6 13:39:13 2006 What is the best way to ventilate my XBOX 360? Q. My Xbox just gave me the 2 rings, showing signs of overheating, and while I live in a dorm on a college campus, I can't have the top class venilation methods. I have a decent sized fan in my room, yet we have no air-conditioning, only a heat vent, which is fairly distant from where my 360 had been. I have heard that the Nyko Intercooler doesn't work properly and will ruin your Xbox 360 eventually. Asked by Blake M - Sat Oct 11 14:56:49 2008 - - 2 Answers - 0 Comments A. Buy the fans especially made for the 360. they are only $20. =) edit: the fans are not that big.. they go attached in the back of the xbox and it will maintain it cool.. =) edit: it does work.. we have had ours for over a year and it hasn't given us any problems.. it keeps the xbox cool you can play for hours without worrying about it! =) Answered by *Cynthia* - Sat Oct 11 15:06:53 2008 2009 Audi TT Question?
Q. Is this car worth 69,581 Vehicle 2009 audi tt price $69,581 (rrp) * Kilometres 0 Body 2 door 4 seat coupe colour phantom black transmission 6 speed Manual Drive type Front Engine 4 cylinder Unleaded Intercooled Turbo 2.0L (1984cc) Reg Plate NEW Owners 0 17In Alloy Wheels 6 Speaker Stereo Abs (Antilock Brakes) Adjustable Steering Col. - Tilt & Reach Air Cond. - Climate Control Air Conditioning - Pollen Filter Airbags - Driver & Passenger (Dual) Airbags - Side For 1St Row Occupants (Front) Audio - Mp3 Decoder Body Colour - Bumpers Body Colour - Door Handles Brake Assist Cd Stacker - 6 Disc In Dash/Cabin Chrome Grille Surround Clock - Digital Control - Automatic Stability Control - Traction … [cont.] Asked by GFC-FAN - Sat Feb 7 17:48:41 2009 - - 5 Answers - 0 Comments A. I like how they listed standard equipment as if they were options. Answered by Frank from GDM - Sun Feb 8 05:25:27 2009 From Yahoo Answer Search: "Heating, Ventilating, and Air Conditioning" See also:
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