Constant-volume air-conditioning systems control space air temperature directly and humidity indirectly by modulating or cycling the cooling apparatus. This article examines the effect of economizer operation on the comfort of spaces served by constant-volume air-conditioning systems. As they relate to integrated operation, the ideas presented here are applicable primarily to direct-expansion (DX) systems with limited unloading capability; however, many also apply to chilled-water systems. ...

Register For Free or Sign In to Access

"A Psychrometric Approach to Air-Side-Economizer Limits, Part 1 of 2" is FREE to access as a registered user on Why register for It's simple and free, and provides:

  • Access to exclusive articles and news coverage
  • The full version of all monthly digital editions dating back to 2010
  • Allows you to comment on articles and discuss news with HPAC's editors
  • Gain valuable media content and more!

Already registered? here.