Dehumidification in HVAC Systems

Order Number: SYS-APM004-EN

Dehumidification in HVAC Systems

Order Number: SYS-APM004-EN
Price: $16

Discusses the dehumidification performance of various, cold-coil commercial HVAC systems, particularly at part-load conditions. (2002)

Topics include:

  • Why control humidity in buildings?
  • Sources of moisture
  • Cold coil versus desiccant dehumidification
  • Full-load versus part-load conditions
  • ASHRAE weather data
  • Dehumidification performance of constant-volume systems (packaged direct expansion DX equipment, energy recovery, fan-speed adjustment, mixed-air bypass, return-air bypass, DX coil circuiting, dual path air handlers, supply-air tempering or reheat)
  • Dehumidification performance of VAV systems (minimum airflow settings, supply-air temperature reset, supply-air tempering at VAV terminals, colder supply-air temperatures)
  • Dedicated outdoor-air systems (neutral versus cold, to space versus to other units, reset control strategies)
  • Unoccupied humidity control
  • Building pressure control
  • Airside economizer control
  • ASHRAE Standards 62 and 90.1

Ordering Information