HVAC Acronyms Deciphered | Free Articles Directory

HVAC itself is an acronym, which stands for?Heating,?Ventilation, and?Air Conditioning.??Clearly, and like most industries, the HVAC field has its own language of acronyms that can cause some confusion for home and building owners/managers.??Here is a quick guide to those acronyms, since the majority of us aren?t?HVAC professionals.

ASHRAE

ASHRAE stands for American Society of Heating, Refrigeration and Air-Conditioning Engineers. Founded in 1894, ASHRE?s mission is to advance the HVAC and Refrigeration industry to better serve humanity and promote a?sustainable world.

SEER

SEER stands for Seasonal Energy Efficiency Rating, which, technically, is a measure of BTUs of cooling output per watt-hour of energy consumed. In layman?s terms, this is the amount of?cooling you get out of an AC unit for every unit of energy you put in. The higher the SEER, the more efficient your AC unit is. All newly made systems must be at least 13 SEER, according to 2006 energy legislation.

BTU

BTU Stands for British Thermal Units, a measurement of energy. One BTU is equal to the amount of energy needed to raise the temperature of one pound of water by one degree. Most commonly, you will find BTU?s showing up on your gas bill, as they are the units in which you pay for natural gas. When someone in the HVAC business mentions a ton of air conditioning capacity, they are referring to 12,000 BTUs, which is the amount of heat required to heat one ton of ice in a 24 hour period. For reference, a BTU equals 251.9 calories. For more reference, a pound of coal should generate about 15,000 BTUs and 1 pound of gasoline (about 1/6 of a gallon) should produce about 19,000 BTUs.

AFUE

AFUE stands for the Annual Fuel Utilization Efficiency rating, which is a measurement of a piece of heating equipment?s thermal efficiency.??The AFUE rating takes into account the actual operating costs, instead of just a snapshot measurement. The higher the AFUE, the more efficiently the devices converts energy into heat.

MERV

MERV stands for Minimum Efficiency Reporting Value. This is a measurement created by ASHRAE that tests and rates?air filters?to see how effective they are at removing particles from the air. Before it was called MERV, they had a much longer title for it, ANSI/ASHRE Standard Test Procedure 52.2. The test involves creating different sized particles in various quantities and passing them through a filter in an air stream. This helps measure how many pass through, and what size they are, thus ranking the filter on the 16 point scale with 16 being the best and 1 being the worst.

BACNet

BACNet stands for Building Automation Control Network. The BACNet is basically the HVAC equivalent to the internet. It is the set of governing rules on how individual units in an HVAC system communicate with each other. It includes the boilers, chillers, thermostats, motors, vents, lights, emergency systems, and everything else in your?HVAC system. BACNet makes sure that all pieces communicate together to run efficiently and safely.

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These are just a few of the common heating and air acronyms that you may not be familiar with. If you have any questions, or would like to learn more about the HVAC industry or air conditioning tips and maintenance, check out the blog at?http://www.airsystemservices.com/blog.

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