What does HVAC Stands For ?
H = Heating
V = Ventilation
AC = Air Conditioning
A HVAC System is typically an Environmental Controls System, Which may include controls of Temperature, Humidity, and Air Flow, of a space.
V = Ventilation
AC = Air Conditioning
A HVAC System is typically an Environmental Controls System, Which may include controls of Temperature, Humidity, and Air Flow, of a space.
Why is it important to understand HVAC Systems as a Construction Professional ?
- HVAC Systems can cost from 10% to 25% of the total construction budget.
- HVAC Systems take up more space than other trades - Impact trade coordination, Net usable sp.ft. of the Building, and Sequence of installation.
- HVAC Systems are essential requirements for certain type of buildings, such as Laboratories, Hospital, Vivariums, Data Centers, etc.
- Performance of the HVAC Systems will impact the long term operating cost of a building - Energy Efficiency, Maintenance Cost, and Life Expectancy.
- Essential Element is LEED Projects.
- You need to know how to deal with your mechanical- Sub!.
Process of Designing a HVAC System
- Perform Cooling / Heating Load Calculation
- System Selection - Centralized vs Decentralized, Mechanical Cooling vs Natural Ventilation, VAV vs Chilled Beams, Air Cooled vs Water Cooled etc.
- Equipment Selection - Air Handling Units, VAV Boxes, Fans Chilled Beams, Diffusers, Pumps, Heat Ex hangers, etc.
- System and Equipment Layout and Preliminary Spatial Coordination - Mechanical Room Sizes, Roof Equipment Layout, Shaft Layout, Duct work Distribution System, Pipe Routing etc.
- Detailed Design - Detailed Trade Coordination, Control System Design, Support Details, etc.
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