Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
-
Outside Air Design
Agree. When the TAB opened the return air damper manually to 100% the total air increased to near design. The O/A decreased below design. We do have some margin in the motor to increase the fan RPM but this thing is already outside of the fan curve envelope. The static pressure is below where...- filippo56
- Post #5
- Forum: HVAC/R engineering
-
Outside Air Design
No, I don't think they are fighting for air. This unit is the most remote, longest distance from the Louver.- filippo56
- Post #3
- Forum: HVAC/R engineering
-
Outside Air Design
I am in the process of troubleshooting an O/A duct distributing air to four AHUs. The most remote AHU is modulating the return air dampers to give a constant 900CFM of outside air. Due to the return air damper modulating down the total air is low. I am getting a varing consensus of opinion among...- filippo56
- Thread
- Replies: 7
- Forum: HVAC/R engineering
