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2. Air Movement and Control Association - Wikipedia

   en.wikipedia.org/wiki/Air_Movement_and_Control...

   The AMCA testing laboratory is an A2LA accredited laboratory that tests air control and air movement devices for members of the air control and air movement industry. The AMCA lab comprises the following: [1] Four Reverberant Sound Rooms ranging in size from 6,300 cu.ft. to 61,700 cu.ft.

3. Need a new air conditioner? Here's how to find a ... - AOL

   www.aol.com/air-conditioner-heres-quality-hvac...

   Summer isn't officially here yet, but it feels like it. Good HVAC contractors are in high demand. Here's how to find one.

4. Sheet Metal and Air Conditioning Contractors' National ...

   en.wikipedia.org/wiki/Sheet_Metal_and_Air...

   The Sheet Metal and Air Conditioning Contractors' National Association (SMACNA; pronounced 'Smack'-'Nah') is an international trade association with more than 4,500 contributing contractor members [1] in 103 chapters [2] throughout the United States, Canada, Australia and Brazil.

5. National Environmental Balancing Bureau - Wikipedia

   en.wikipedia.org/wiki/National_Environmental...

   Founded in 1971 and headquartered in Gaithersburg, Maryland, USA; the National Environmental Balancing Bureau (NEBB) is an international association certifying firms and qualifying supervisors and technicians in the following disciplines: Testing, Adjusting, and Balancing (TAB) of HVAC systems; Building Systems Commissioning (BSC); Sound and Vibration Measurement (S&V); Retro-commissioning ...

6. Building Engineering Services Association - Wikipedia

   en.wikipedia.org/wiki/Building_Engineering...

   The Building Engineering Services Association (BESA), until 2012 the Heating and Ventilating Contractors' Association, and from then until 2016, B&ES, is the main UK trade association for companies that design, install, commission and maintain heating, ventilation, air conditioning, refrigeration and related engineering projects.

7. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. [32] (Minisplit ...