Converting dual-duct constant-volume systems to variable-volume systems without retrofitting the terminal boxes Academic Article uri icon


  • Dual-duct constant-air-volume systems can be converted to variable-air-volume systems by installing hot air dampers in the main hot air ducts. No terminal box retrofit is needed. The detailed retrofit procedures and control sequences are described in this paper. Results from a case study building are also presented.

published proceedings

  • ASHRAE Transactions

author list (cited authors)

  • Liu, M., & Claridge, D. E.

complete list of authors

  • Liu, M||Claridge, DE

publication date

  • January 1999