Summary of the variable air volume or VAV system approach to air
conditioning.
Topics include:
- Explanation of VAV system
- Components of a VAV
system
- Terminal unit types (cooling only, reheat, parallel
and series fan powered, dual duct)
- Terminal unit
controllers (pneumatic, electronic, DDC)
- Diffusers
- Supply duct design
- Interior vs. perimeter spaces
- System control modes
- Fan modulation
- Static
pressure control
- System-level ventilation
- Freeze
protection for coils
- Part-load space humidity control
- Building pressure control