AC – Air Conditioning air chamber, alternating current. AFF – Above finished floor. – Pound LBF – Pound LD – Linear Diffuser LF – Linear Feet LIQ – Liquid LP – Low Point, Low Pressure LRA – Locked Rotor Amps LUVR / LVR – Louver LVDR – Louvered Door LVG – Leaving LVL – Level LVR – Louver LWT – Leaving Water Temperature M – Meter M TYPE – Lightest type of rigid copper pipe M2 – Square meter MAN – Manual MAT – Mixed air temperature MAX – Maximum MBH – 1000 BTUH, Thousand British thermal units per hour MCA – Minimum Circuit Amps MECH – Mechanical MFR – Manufacturer MG – Milligram MGD – Millions gallons per day MIN – Minimum, Minute ML – Milliliter MM – Millimeter MM3 – Cubic millimeter MPT – Male pipe thread MTD – Mounted MU – – Make-Up Water MUA – – Make-Up Air NA – Not applicable NC – Noise Criteria, Normally Closed NEG – Negative NIC – Not in contact NO – Normally Open NOM – Nominal NPHP – Name plate horsepower NPS – Nominal pipe size NPSH – Net positive suction head NTS – Not to scale O – Oxygen OA – Outside Air OAI – Outside Air Intake OAT – Outside temperature OC – On Center oC – Degrees Celsius OD – Outside Diameter ODP – Open Drip Proof, OED – Open end duct oF – Degrees Fahrenheit OF – Overflow OV – Outlet Velocity OZ. The HVAC industry uses terms and vocabulary that may not be easily understood by the average homeowner. HVAC Acronyms and Abbreviations. HVAC abbreviation. List of all most popular abbreviated HVAC terms defined. Celsius: A temperature scale that registers the freezing point of water as 0° and the boiling point as 100° under normal atmospheric pressure. Electrical Abbreviations A list of typical abbreviations used in electrical drawings. 1 2 3 4 5 7 8 A B E F G H J 1 2 3 4 5 7 8 A B E F G H J 3.3 D D A.9 A.9 6 6 5.7 5.7 4.6 C.9 C.9 2.3 UNOCCUPIED. This field is for validation purposes and should be left unchanged. For perfectly mixed air or laminar flow spaces, this is equal to the number of times per hour that the volume the space is exchanged by mechanical and natural ventilation. HVAC terminology PDF, Mechanical abbreviations and symbols, Meaning in HVAC, HVAC terms and definitions, Air conditioning terminology, Commercial HVAC – Ounce PA – Pascal PC – Plumbing contractor PCF – Pounds per Cubic Foot PCR – Pumped condensate return PD – Pressure Drop PF – Power factor PG – Pressure gauge PH – Phase PL – Plate PNEU – Pneumatic PRESS – Pressure PROP – Propeller PRV – Pressure Reducing Valve PSI – Pounds per Square Inch PSIA – Pounds per Square Inch -Absolute PSID – Pounds per Square Inch -Differential PSIG – Pounds per Square Inch -Gauge PV – Plug valve PVC – Polyvinyl Chloride QTY – Quantity R – Radius R/E – Return and exhaust RA – Return Air RAD – Radius RAT – Return air temperature RD – Roof drain RECOV – Recovery RED – Reducer REF – Reference REQD – Required RET – Return REV – Revision RH – Relative Humidity RL – Refrigerant liquid RLA – Running Load Amps, Rated Load Amperes RLF – Relief RM – Room RPM – Revolutions per Minute RS – Refrigerant suction RTN – Return RTU – – Roof-Top Unit RV – Relief valve S – Switch SA – Supply Air, Shock absorber SAT – Supply air temperature SCH – Schedule SCR – Screen SCT – Saturated Condensing Temperature SD – Smoke Detector, Smoke Damper SDT – Saturated discharge temperature SE – Smoke Exhaust SEC – Seconds, secondary SEER – Seasonal Energy Efficiency Ratio SEN / SENS – Sensible SEP – Separate SEQ – Sequence SER – Series SERV – Service SF – Square Feet, Service factor SFD – Combination Smoke / Fire Damper SHC – Sensible Heat Capacity SHT – Sheet SI – International systems of units SOL – Solenoid SP – Static Pressure SPEC – Specification SPLY – Supply SQ. List page number 3 Browse the list of 612 HVAC abbreviations with their meanings and definitions. Sun logo a licensed trademark of the Sinclair Finance Company. We would like to help you with a list of related HVAC acronyms and abbreviations with links to other pages on our site to give even more information how the industry is using the term! Call us at (805) 547 2050 to schedule a no-obligation consultation or to learn more ways Abraxas Energy Consulting can help you improve the energy efficiency of your entire organization. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z. A.N.S.I. ABC – Above ceiling. HVAC HVAC is the technology of indoor and vehicular environmental comfort. HVAC – acronym for heating, ventilation and air conditioning. Tag Search en: piping hvac abbreviations es: abreviaturas HVAC tuberías de: Rohr hvac Abkürzungen Printer friendly. Insulation can be found in duct work, air handlers, suction lines and more. Define HVAC at AcronymFinder.com. HVAC Definitions Terms & Acronyms | Heating Cooling - This is a comprehensive list of HVAC Definitions Terms & Acronyms. Fannie Mae and Freddie Mac Green Financing Services, Sustainability & Corporate Social Responsibility, Option C Measurement & Verification System, Community Involvement & Charitable Giving, American Society of Heating Refrigeration and Air Conditioning Engineers, A Data Communication Protocol for Building Automation and Control Networks, Coefficient of Variation of the Root Mean Square of the Error, International Performance Measurement and Verification Protocol, National Electrical Manufacturers Association. Abatement Reduction or removal of a contaminant. Knowing the acronyms and Abbreviations for HVAC terms can help you when deciding on a new system, an upgrade or understanding Air Conditioning or Furnace terms printed on you system. The additional R stands for refrigeration. Start studying HVAC ABBREVIATIONS. HVAC (heating, ventilation, and air conditioning) is a major subdiscipline of mechanical engineering. Abbreviation to define. HVAC Abbreviations A list of typical abbreviations used in mechanical or HVAC plans. High Performance HVAC is certain there are more terms and acronyms. The goal of HVAC design is to balance indoor environmental comfort with other factors such as installation cost, ease of maintenance, and energy efficiency. What does HVAC stand for? HVAC: Heating Ventilation and Air Conditioning: HWP: Hot Water Pump: HWR: Hot Water Return: HWS: Hot Water Supply: HWRT: Hot Water Return Temperature: HWST: Hot Water Supply Temperature: HX: Heat Exchanger: I/O: Input Output: IAQ: Indoor Air Quality: IPMVP: International Performance Measurement and Verification Protocol: IR: Infra-Red: LAT: Leaving Air Temperature: LHV… Refrigeration is sometimes added to the field's abbreviation as HVAC&R or HVACR, or ventilating is dropped as in HACR. A – Air, Compressed Air, compressed air line, area. Standard American National Standards Institute. All rights reserved. In fact, there are probably a lot of people who don’t even know that HVAC itself stands for Heating, Air Conditioning, and Ventilation.Hopefully this glossary list will help you understand are some of the more common HVAC vocabulary terms used regularly in the industry so you can … LL09. electrical symbols hvac legend plumbing legend abbreviations 1.provide 3/4"c from security, telephone and data outlets to above nearest accessible lay-in ceiling. A balanced system has enough air distributed to match the amount required by all parts of the system at any given time. HVAC Definitions Terms & Acronyms CAV – Constant Air Volume CD – Cold Deck (also Condensation Drain) AF – Air Foil. New search features Acronym Blog Free tools "AcronymFinder.com. 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