A "VAV refrigeration system" is a misnomer for a Variable Air Volume (VAV) HVAC system, which is a type of heating, ventilation, and air conditioning system that controls temperature by modulating the volume of conditioned air delivered to different zones. Unlike a constant-volume system, a VAV system supplies variable airflow at a constant temperature, adjusting the airflow up or down based on the cooling or heating demand in each zone. This makes it more energy-efficient and allows for precise temperature control in different areas of a building simultaneously. How it works Constant temperature, variable airflow: The main air handling unit (AHU) delivers air at a consistent temperature. VAV terminal boxes: As the air travels through the ductwork, it reaches a VAV box in each zone (room or area). Thermostats and sensors: A thermostat or sensor in the zone detects the temperature. Dampers: If the zone is too warm, the sensor signals the VAV box to open a damper, increasing ...
How a Chiller, Cooling Tower, and Air Handling Unit Work Together
This video explains the interaction between a chiller, cooling tower, and air handling unit within an HVAC system. You will learn how these components work together to maintain optimal temperature and air quality in large buildings and industrial environments. Ideal for HVAC professionals and students alike.
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