Laserfiche WebLink
NNEUDORFER <br /> ENGINEERS <br /> on E—g- oMPA�. <br /> Terms and Abbreviations <br /> AHU Air Handling Unit FH Fume Hood OED Open Ended Duct <br /> ACU Air Conditioning Unit FHT Fume Hood Test OSA Min. Outside Air Minimum <br /> ACCU Air Cooled Condensing Unit FG Floor Grille OAT Outside Air Temperature <br /> Adj.P.D. Adjusted Pitch Diameter F.E. Floor Exhaust or Return pD/Ap Pressure Drop <br /> AFMS Airflow Monitoring Station FLA Full Load Amperage pF Power Factor <br /> AMP Amperage FM Flow Meter PHC Preheat Coil <br /> AVG. Average FPB Fan Powered Box PH Phase(s) <br /> BD Balance Damper FpM Feet Per Minute PICV Press. Independent Control Valve <br /> BET Building Envelope Test FS PMP Circulating Pump <br /> BHp Brake Horsepower FSCAL Flow Sensor Calibration pp Perforated Plate <br /> BMS Building Management System FSD Fire Smoke Damper PSI Pounds Per Square Inch <br /> BOS Bottom of Sheave FSR Floor Supply Register PSIA PSI Absolute <br /> BSC Bio Safety Cabinet FT Feet, Foot PSIG PSI Gauge <br /> BTU British Thermal Unit FTHD Feet of Head PT Pitot Traverse <br /> BTUh BTU/Hour FTU Fan Terminal Unit RA Return Air <br /> BV Balance Valve GFH Gas Fired Heater RAT Return Air Temperature <br /> BVFM Balance Valve Flow Meter GFHC Gas Fired Heating Coil RAID Return Air Damper <br /> CAV Constant Air Volume GIRD Grille, Register, Diffuser RF Return Air Fan <br /> CBV Calibrated Balance Valve GPM Gallons Per Minute RG Return Grille <br /> CD Ceiling Diffuser HC Heating Coil RHC Reheat Coil <br /> CIF Correction Factor(also Ak) HEPA High Eff. Particulate Absorbing RH Relative Humidity <br /> CFLA Corrected Full Load Amps H.F. HEPA Filter RR Return Register <br /> CFM Cubic Feet Per Minute HOA Hand/Off/Auto Switch RPM Revolutions Per Minute <br /> C.E. Ceiling Exhaust HP Horsepower RTU Roof Top Unit <br /> CEF Ceiling Exhaust Fan HpS High Pressure Steam RVA Rotating Vane Anemometer <br /> CH Chiller HRC Heat Recovery/Reclaim Coil SA Supply Air <br /> CHWR Chilled Water Return HRU Heat Recovery Unit SAT Supply Air Temperature <br /> CHWS Chilled Water Supply HTR O.L. Overload Protection(Motors) SD Supply Diffuser <br /> C.R. Ceiling Return HVAC Heating,Ventilation&Air Cond. SEF Smoke Exhaust Fan <br /> CT Cooling Tower HWR Hot/Heating Water Return SF(Air) Supply Fan <br /> CU Condensing Unit HWS Hot/Heating Water Supply S.F. Service Factor(Electrical) <br /> CWR Condenser Water Return HX Heat Exchanger SHC Steam Heating Coil <br /> CWS Condenser Water Supply Hz Hertz,Cylcles per Second SNKL Snorkel Inlet <br /> CV Constant Volume ID Inside Diameter Sp-WC Static Pressure in.W.C. <br /> Cx Commissioning In/S Inches Per Second sq.ft. (Area)Square Feet <br /> DB Dry Bulb in.W.C. Inches Water Column SR Supply Register <br /> dB Decibel Level Kfactor Correction Factor of Free Area SWE Sidewall Exhaust <br /> dB(A) A Weighted Decibel Level KW Kilowatts SWG Side Wall Grille <br /> D.D. Direct Drive LAT Leaving Air Temperature SWR Sidewall Return/Register <br /> DDC Direct Digital Controls LD Linear Supply Diffuser SWS Sidewall Supply <br /> Des. Design LPS Low Pressure Steam TAB Test,Adjust,&Balance <br /> DIA Diameter LRD Linear Return Diffuser TDH Total Dynamic Head <br /> DNL Data Not Listed LSD Linear Slot Diffuser TOS Top of Sheave <br /> DOAS Dedicated Outside Air System LT Light Troffer TSP Total Static Pressure <br /> Dp Differential Pressure LWG Low Wall Grille TU Terminal Unit <br /> DTC Dual Temperature Coil LWR Low Wall Return UH Unit Heater <br /> DVA Demand Ventilation Air LWT Leaving Water Temperature ULPA Ultra Low Particle Air(Filter) <br /> EA Exhaust Air MAD Mixed Air Damper V Volts <br /> EAD Exhaust Air Damper MAU/MUA Make Up Air/Unit VAV Variable Air Volume <br /> EAT Entering Air Temperature MBH 1000 Btu's Per Hour VEL Velocity <br /> ECM Electronically Commutated Motor MVD Manual Volume Damper VD Volume Damper <br /> ECONA Economizer Air NA Not Applicable VFD Variable Frequency Drive <br /> EDH Eclectic Duct Heater N/ACC Not Accessible Vp Velocity Pressure <br /> EF Exhaust Fan NC Noise Criteria VSC Variable Speed Controller <br /> EG Exhaust Grille NS Not Specified VVT Variable Volume Terminal <br /> EMCS Energy Mgt.Control System NPSH Net Positive Suction Head W Watts <br /> ER Exhaust Register NPSHA Net Positive Suction Head Avail. WB Wet Bulb <br /> ERV/ERU Energy Recovery Ventilator/Unit NPSHR Net Positive Suction Head Req. W.G. Water Gauge <br /> ESP External Static Pressure NZ Nozzle Ap Differential(Delta)Pressure <br /> EWT Entering Water Temperature OAD Outside Air Damper AT Differential(Delta)Temperature <br /> FCU Fan Coil Unit OBD Opposed Blade Damper VA Ventilation Air <br /> Project 2024-0772 Page 31 of 31 <br />