How Chiller, AHU, RTU work - working principle Air handling unit, rooftop unit hvac system
The Engineering Mindset・2 minutes read
Chillers are vital for air conditioning, with water-cooled and air-cooled varieties used to generate chilled water by removing heat. Air handling units and rooftop units play key roles in circulating chilled water and conditioning air for distribution in buildings.
Insights
- Chillers come in two main types, air cooled and water cooled, with water cooled chillers typically located in basements and requiring cooling towers, while air cooled chillers are usually placed on rooftops or outside.
- Air handling units (AHUs) and rooftop units (RTUs) are integral components of air conditioning systems, with AHUs distributing air within buildings and often connected to central plant units, while RTUs are self-contained HVAC units located on roofs, providing air conditioning for small commercial properties.
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Recent questions
What are chillers used for?
Chillers are used to generate chilled water for air conditioning by collecting unwanted heat.
Where are water cooled chillers typically located?
Water cooled chillers are typically located in the basement.
What is the difference between air handling units and rooftop units?
Air handling units distribute air within buildings, while rooftop units are self-contained HVAC units located on roofs.
Where can air handling units be located?
Air handling units can be located inside buildings, rooftop plant rooms, or on roofs.
How do rooftop units differ from air handling units?
Rooftop units (RTUs) are always situated on rooftops and contain their own refrigeration system for cooling.
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