8125 EVERGREEN WAY DISCOUNT TIRE 2026-01-05

EI NEUDORFER n:t e g ra ENGINEERS AN integra COMPANY TERMS AND ABBREVIATIONS AC or ACU Air Conditioner or Air Conditioning Unit HEPA High Efficiency Particulate Absorbing AH or AHU Air Handler or Air Handling Unit HP Horsepower ACH Air Changes per Hour HVAC Heating Ventilation and Air Conditioning Airfoil Instrument used to measure air velocity in HWS Heating Water Supply feet per minute. HWR Heating Water Return AVG Average HX Heat Exchanger BHP Brake Horsepower HZ Hertz, cycle per second CAV Constant Air Volume in.w.g. inches of water gauge CBV Calibrated Balancing Valve(Circuit Setter) Kfactor Correction factor to the free area need to CC Cooling Coil calculate CFM. CD Ceiling Diffuser KW Kilowatts CFM Cubic Feet per Minute LAT Leaving Air Temperature CH Chiller LWG Low Wall Grille CHWS Chilled Water Supply LWR Low Wall Register CHWR Chilled Water Return LWT Leaving Water Temperature CP Circulating Pump MAU Make-up Air Handling Unit CR Ceiling Register MBH 1,000 BTUH CRAC Computer Room Air Conditioner OSA Outside Air CRU Computer Room Unit OBD Opposed Blade Damper CT Cooling Tower OP Pressure Drop CU Condensing Unit PH Phase CUH Cabinet Unit Heater Pitot Tube Instrument used to measure air velocity CWS Condenser Water Supply PSI Pounds per Square Inch CWR Condenser Water Return RA Return Air DAT Discharge Air Temperature RAT Return Air Temperature DB Dry Bulb RF Return Fan DCV Demand Control Ventilation RH Relative Humidity DDC Direct Digital Controls RHC Reheat Coil EA Exhaust Air RPM Revolutions per Minute EAT Entering Air Temperature RTU Roof Top Unit Economizer Controls and components that allow an air SA Supply Air handler to logically utilize outdoor air for SAT Supply Air Temperature cooling and demand control ventilation. S.F. Service Factor EF Exhaust Fan SF Supply Fan EG Exhaust Grille SFD Smoke/Fire Damper EMCS Emergency Management Control System SP Static Pressure ERU Energy Recovery Unit sq.ft. square feet E.S.P. External Static Pressure SWG Sidewall Grille HRC Heat Recovery Coil SWR Side Wall Register EWT Entering Water Temperature TAB Test,Adjust, and Balance FCU Fan Coil Unit TDH Pressure difference across the entering FD Fire Damper and leaving side of a pump. FPB Fan Powered Box TSP Total Static Pressure FSD Fire Smoke Damper UH Unit Heater FLA Full Load Amperage UV Unit Ventilator Flow Hood Instrument used to measure airflow in cubic VAV Variable Air Volume, box that contains a feet per minute. motorized damper that modulates airflow FHT Fume Hood Test VD Volume Damper FPB Fan Powered Box VFD Variable Frequency Drive FPM Feet per Minute Velgrid Instrument used to measure air velocity in FIR Field Report feet per minute FT Foot, Feet VVT Variable Volume Terminal FTU Fan Terminal Unit W.C. or WC Water Column GPM Gallons per Minute W.G.or WG Water Gauge HC Heating Coil WB Wet Bulb . _,- .- of 22