the full forms of some common terms used in HVAC systems
Here are the full forms of some common terms used in HVAC systems: 1. HVAC - Heating, Ventilation, and Air Conditioning 2. AC - Air Conditioning 3. AHU - Air Handling Unit 4. CFM - Cubic Feet per Minute (air flow rate) 5. DX - Direct Expansion (type of cooling coil) 6. ERV - Energy Recovery Ventilator 7. FCU - Fan Coil Unit 8. GPM - Gallons per Minute (water flow rate) 9. HSPF - Heating Seasonal Performance Factor (heat pump efficiency) 10. SEER - Seasonal Energy Efficiency Ratio (AC efficiency) 11. SCFM - Standard Cubic Feet per Minute (air flow rate at standard conditions) 12. TR - Tonnage (cooling capacity, 1 TR = 12,000 BTU/h) 13. VAV - Variable Air Volume (type of air distribution system) 14. VRV - Variable Refrigerant Volume (type of air conditioning system) 15. VFD - Variable Frequency Drive (type of motor control) These terms are commonly used in the design, installation, and operation of HVAC systems.