HVAC Equipment Selection - Key Components & Applications 1. AHU (Air Handling Unit) Function: Conditions and distributes air Use: Large buildings Cooling/Heating: Chilled/hot water or DX coil Location: Centralized (mechanical rooms) 2. FCU (Fan Coil Unit) Function: Heats/cools air in small spaces Use: Individual rooms or zones Cooling/Heating: Chilled/hot water Location: Decentralized (inside rooms) 3. VAV (Variable Air Volume) Function: Controls airflow volume to zones Use: Zoned air distribution Cooling/Heating: Works with AHUs Location: In ductwork near zones 4. VRF (Variable Refrigerant Flow) Function: Provides heating/cooling via refrigerant Use: Energy-efficient for multi-zone buildings Cooling/Heating: Direct refrigerant (no chilled water) Location: Outdoor unit with multiple indoor units 5. Chillers Function: Produces chilled water for cooling Use: Large HVAC systems Cooling/Heating: Supplies chilled water to AHUS/ FCUs . . #hvac #mechanical Engineering #hvacsystems #ahu #fcu #vav #vrf #chillers #cooling Systems #heating Solutions #mep #mepengineering #building Services #hvactechnician #hvacdesign #facility Management #constructionindustry #sustainablehvac #smartbuildings #energyefficiency #hvacmaintenance #chillerplant #airconditioning #hvacprojects #hvaclife #engineeringposts #saudiengineering #techinurdu #hvactraining #mechanicaldesign #engineering World