Comprehensive List of HVAC Acronyms and Abbreviations

Here’s a more extensive list of HVAC acronyms and abbreviations:

A

1. AC — Air Conditioning
2. ACH — Air Changes per Hour
3. AFUE — Annual Fuel Utilization Efficiency
4. AHU — Air Handling Unit
5. ASHRAE — American Society of Heating, Refrigerating, and Air-Conditioning Engineers
6. ATS — Automatic Transfer Switch
7. AHRI — Air-Conditioning, Heating, and Refrigeration Institute
8. ADA — Americans with Disabilities Act
9. ARI — Air-Conditioning and Refrigeration Institute
10. AOP — Air-Over-Pressure
11. AHU — Air Handling Unit
12. AHR — Annual Heating Requirement
13. AOR — Annual Oil Requirement
14. AFM — Airflow Monitor
15. AFD — Adjustable Frequency Drive

B

1. BACnet — Building Automation and Control Networks
2. BMS — Building Management System
3. BTU — British Thermal Unit
4. BAC — Building Automation Controller
5. BDT — Base Design Temperature
6. BAS — Building Automation System
7. BOD — Biochemical Oxygen Demand
8. BOM — Bill of Materials
9. Btuh — British Thermal Units per Hour
10. BPD — Blowers per Day
11. BTX — Benzene, Toluene, and Xylene

C

1. CAV — Constant Air Volume
2. CFM — Cubic Feet per Minute
3. Chiller — A device that cools water or another fluid for air conditioning systems
4. CHP — Combined Heat and Power
5. CHP — Cogeneration Heat and Power
6. CMMS — Computerized Maintenance Management System
7. COP — Coefficient of Performance
8. CRM — Customer Relationship Management
9. CTS — Clear To Send
10. CW — Chilled Water
11. Cx — Commissioning
12. CAZ — Combustion Appliance Zone
13. CFH — Cubic Feet per Hour
14. CDW — Chilled Drinking Water
15. CEC — California Energy Commission

D

1. DCV — Demand-Controlled Ventilation
2. DDC — Direct Digital Control
3. DOE — Department of Energy
4. DP — Differential Pressure
5. DOAS — Dedicated Outdoor Air System
6. DOL — Direct-On-Line
7. DDC — Direct Digital Control
8. DFM — Design for Manufacturability
9. DDC — Direct Digital Control
10. DP — Differential Pressure

E

1. ECM — Electronically Commutated Motor
2. EEM — Energy-Efficient Mortgage
3. EER — Energy Efficiency Ratio
4. EMCS — Energy Management and Control System
5. EPA — Environmental Protection Agency
6. ERV — Energy Recovery Ventilator
7. ESCO — Energy Service Company
8. EUI — Energy Use Intensity
9. ETL — Electrical Testing Laboratory
10. EVAP — Evaporator Coil
11. EAT — Energy Assessment Team
12. EWT — Entering Water Temperature

F

1. FCU — Fan Coil Unit
2. FDD — Fault Detection and Diagnostic
3. FEG — Fan Efficiency Grade
4. FPT — Freezing Point
5. FTT — Finish-To-Start
6. FPTU — Fan Power Testing Unit

G

1. GFA — Gross Floor Area
2. GSHP — Ground Source Heat Pump
3. GWP — Global Warming Potential
4. GHG — Greenhouse Gas

H

1. HVAC — Heating, Ventilation, and Air Conditioning
2. HFC — Hydrofluorocarbon
3. HEPA — High-Efficiency Particulate Air
4. HSPF — Heating Seasonal Performance Factor
5. HRV — Heat Recovery Ventilator
6. HWR — Hot Water Return

I

1. IAQ — Indoor Air Quality
2. IEC — International Electrotechnical Commission
3. IGV — Inlet Guide Vane
4. IT — Information Technology
5. IOT — Internet of Things

J

1. JCAHO — Joint Commission on Accreditation of Healthcare Organizations
2. JCI — Joint Commission International

K

1. KPI — Key Performance Indicator
2. KVA — KiloVolt-Ampere
3. KW — Kilowatt

L

1. LCC — Life Cycle Cost
2. LEED — Leadership in Energy and Environmental Design
3. LHVAC — Low-Voltage HVAC

M

1. MERV — Minimum Efficiency Reporting Value
2. MHEA — Materials Handling Engineers Association
3. MOP — Maximum Operating Pressure
4. MRO — Maintenance, Repair, and Operations
5. MVD — Motorized Valve Damper
6. MTD — Mounting Type Damper

N

1. NATE — North American Technician Excellence
2. NEBB — National Environmental Balancing Bureau
3. NEC — National Electrical Code
4. NEMA — National Electrical Manufacturers Association
5. NHP — Non-Halogenated Polyolefin
6. NIOSH — National Institute for Occupational Safety and Health
7. NRM — Network Reference Model

O

1. O&M — Operations and Maintenance
2. OA — Outdoor Air
3. OAT — Outdoor Air Temperature
4. OSHA — Occupational Safety and Health Administration

P

1. PA — Positive Airway
2. PCU — Packaged Control Unit
3. PDU — Power Distribution Unit
4. PPM — Parts Per Million
5. PSI — Pounds per Square Inch
6. PUE — Power Usage Effectiveness
7. PUI — Potentially Unwanted Installation

Q

1. QA — Quality Assurance
2. QC — Quality Control
3. QDT — Quality, Delivery, and Technology
4. QVD — Quality, Value, and Delivery
5. QFD — Quality Function Deployment

R

1. RTU — Roof-Top Unit
2. R-22 — A type of refrigerant (phased out due to environmental concerns)
3. R-410A — A type of refrigerant (more environmentally friendly)
4. RTU — Roof-Top Unit
5. RTFM — Read The Freaking Manual
6. RTU — Rooftop Unit

S

1. SEER — Seasonal Energy Efficiency Ratio
2. SFP — Specific Fan Power
3. SI — System Integration
4. SRI — Solar Reflectance Index
5. SSN — Social Security Number

T

1. TESP — Total External Static Pressure
2. T-Stat — Thermostat
3. TWH — Tankless Water Heater
4. TRV — Thermostatic Radiator Valve

U

1. UDI — Unique Device Identifier
2. U-Factor — Thermal Transmittance
3. UPS — Uninterruptible Power Supply
4. UVGI — Ultraviolet Germicidal Irradiation

V

1. VAV — Variable Air Volume
2. VFD — Variable Frequency Drive
3. VRV — Variable Refrigerant Volume
4. VOC — Volatile Organic Compound
5. VSD — Variable Speed Drive

W

1. WAP — Wireless Access Point
2. WCI — Working Capital Index
3. WDD — Work Delay Duration
4. WDT — Watchdog Timer

X

1. XFR — Transfer
2. XSD — XML Schema Definition

Y

1. Y2K — Year 2000 (computer bug)
2. YTD — Year-To-Date

Z

1. ZIF — Zero Insertion Force
2. ZPD — Zone Pressure Differential

This extensive list covers a wide range of acronyms and abbreviations commonly used in the HVAC industry. Whether you’re an HVAC professional, a student, or simply interested in the field, having a good understanding of these terms can be invaluable for effective communication and comprehension of HVAC systems and technology.