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Heat Exchanger Engineering Techniques
ISBN-10:
0791801675
No. of Pages:
350
Publisher:
ASME Press
Publication date:
2003
eBook Chapter
24 Underperformance in A/C Systems Due to Ducting Problems
Page Count:
5
-
Published:2003
Consider three rooms, each the same size and construction, and each cooled in a different manner:
• Room 1 is cooled by cold air supplied through a duct.
• Room 2 is cooled using a direct-expansion A/C system.
• Room 3 is cooled using an air-handling unit and cold water from a chiller.
24.1 Sound-Deadening or Insulation Material Added
24.2 Ducts Not Built in Accordance with Calculations
24.3 Breaks in Duct Continuity
24.4 Duct Turning Vane Faults
24.5 Airflow Reduced by Air Filters
24.6 Blocking or Altering a Supply or Return
24.7 Louvered Door Replaced
24.8 Takeoffs Added Reducing Airflow to Other Rooms
24.9 Makeup Air Quantity Increased
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