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hvac abbreviation list

If you know of something we missed please email us. 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… AFF – Above finished floor. The hourly ventilation rate divided by the volume of a space. 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. What does HVAC stand for? Learn vocabulary, terms, and more with flashcards, games, and other study tools. 2142 Priest Bridge Ct. Suite 6, Crofton, MD 21114. HVAC Abbreviations A list of typical abbreviations used in mechanical or HVAC plans. Updated June 2020. 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. – Cubic inches CUH – Cabinet Unit Heater CV – Check valve CW – Cold water CWR – Condenser Water Return, cold water riser CWS – Condenser Water Supply D – Drain, Deep DB – Dry Bulb {Reference to Temperature} DDC – Direct Digital Control DEG – Degree DELTAT – Temperature difference, Delta Temperature DET – Detail DIA – Diameter DIM – Dimension DISC – Disconnect DN – Down DP – Differential Pressure, Dew point temperature DR – Drain DWG – Drawing E to C – End to center EA – Each, Exhaust Air EAHU – Exhaust Air Handling Unit EAT – Entering Air Temperature EATR – Exhaust Air Transfer Ratio EER – Energy efficient ratio EF – Exhaust Fan EFF – Efficiency EJ – Expansion joint EL – Elevation ELB – Elbow ELEC – Electrical EMER – Emergency EMS – Energy Management System ENT – Entering ERV – Energy Recovery Ventilator ESP – External Static Pressure ET – Expansion Tank EUH – Electrical Unit Heater EVAP – Evaporator EWT – Entering Water Temperature EXH / EX – Exhaust EXP – Expansion EXST – existing EXT – External F – Fahrenheit FA – Free Area, Fire Alarm FC – Flexible Connection, flexible connection FCO – Floor clean out FCU – Fan Coil Unit FD – Floor Drain, Fire Damper, Fire Department FDW – Feed water FEC – Fire extinguisher cabinet FF – Finish floor, FG – Finish grade FHC – Fire hose cabinet FLA – Full Load Amps FLEX – Flexible FLR – Floor FLRDR – Floor Drain FM – Flow meter FO – Fuel oil FOV – Flush out valve FPM – Feet per Minute FPS – Feet per Second FRP – Fiberglass Reinforced Plastic FS – Flow Switch, federal specs FT – Feet, Foot FTG – Fitting FTR – Fin Tube Radiation FU – Fixture unit FV – Flush valve G – Gas, Gram, gas line GA – Gauge GAL – Gallons GALV – Galvanized GFU – Glycol Feed Unit GL.V – Globe valve GND – Ground GPD – Gallons per day GPH – Gallons per Hour GPM – Gallons per Minute GPS – Gallons per second GR – Grade, Grain GV – Gate valve GWH – Gas water heater H2O – Water HB – Hose Bib (Connection) HD – Head Hg – Mercury HGT – Height HMD – Humidity HORIZ – Horizontal HP – Horsepower, High Point HR – Hour HRU – Heat Recovery Unit HRV – Heat Recovery Ventilator HTD – Heated HTG – Heating HTR – Heater HVAC – Heating Ventilation and Air Conditioning HW – Hot water HWH – Hot water heater HWR – Hot water return, hot water riser HWS – Hot water supply HWT – Hot water tank HZ – Hertz (Cycles per Second) ID – Inside Diameter IN – Inches IN. This allows for the creation of customized temperature zones throughout the home for increased comfort and efficiency. 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.

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