HVAC System Pressure Relief
Click here to read more articles about Column
This article originally appeared in the July/August 2006
issue of Home Energy Magazine.
July 01, 2006
Correcting pressure imbalances in your HVAC system can result in a healthier, more efficient home.
Without central air conditioning, the South wouldn’t be what it is today. Central air conditioning has made living in the South year-round a real pleasure, but it has also created its own set of problems—including the subtle but critical problem of pressures that differ from room to room. To keep the installed costs of air conditioning down, it became common practice to put supplies into each room and use a central return, eliminating individual return runs. Rooms can serve as ducts as long as all the doors in the house stay open. As soon as doors, working as dampers, start to close, the system changes. Uneven pressures are created, and system performance and comfort are compromised causing the occupants to compensate by running the system longer or at a lower set point. Complicating this problem is the fact that some rooms are pressurized and some rooms are depressurized. Air will seek to leak out of a pressurized room and leak into a depressurized room. Even though air has always leaked into and out of houses, this poses a ...
To read complete online articles, you need to sign up for an Online Subscription.
Once an order has been placed there is an automatic $10 processing fee that will be deducted with any cancellation.
The Home Energy Online articles are for personal use only and may not be printed for distribution. For permission to reprint, please send an e-mail to email@example.com.