I learned that barometric relief dampers alone only relieve 25percent so does tht mean if the economizer modulates to 100percent OSA in a "low leakage" economizers that 75 percent of the air ex filtrate through doorways , exhaust fan ducts, ect. Or does tht mean that the building becomes noticeably pressurized or does the total AHU CFM rate actually decrease or what? Thanks for the knowLedge!

Barometric Relief (5)

No Registration Required To Ask & Answer Questions! Features Such As Voting or Marking Favorites Cannot Be Accessed Without Registration! All Questions & Answers Are Subject To A Small Delay In Posting Due To Moderation!

Ask A Question - No Registration Required
Barometric Relief

Votes

Answers

Views

Question

votes

answers

views

I learned that barometric relief dampers alone only relieve 25percent so does tht mean if the economizer modulates to 100percent OSA in a "low leakage" economizers that 75 percent of the air ex filtrate through doorways , exhaust fan ducts, ect. Or does tht mean that the building becomes noticeably pressurized or does the total AHU CFM rate actually decrease or what? Thanks for the knowLedge!

Asked 6 months ago By Big E

Category: Barometric Relief

votes

answers

views

Barometric & Smoke Control?

Asked 6 months ago By Fire alarm guy

Category: Barometric Relief

Any chance you could expand on this to clarify a barometric damper effects / uses in a smoke control application?

votes

answer

views

[RESOLVED] how can the omission of relief dampers cause humidity issues in a gym

Asked 2 years ago By Anonymous User

Updated 2 years ago By Julien

Category: Barometric Relief

votes

answer

285

views

Rain Entering Through Barometric Relief - How Can I Stop It?

Asked 4 years ago By AndyW

Updated 4 years ago By Abbie Stancato

Category: Barometric Relief

Our office building has a Carrier model 48TFE008 equipped with a MicroMetl Economizer model 0688-0201-54920. We have had a zone control system installed. I now have four separate zones each with a separate thermostat. This zone system closes and open...

votes

answer

194

views

How do i get rid of my motorized barometric relief dampers?

Asked 4 years ago By Gymbo

Updated 4 years ago By Abbie Stancato

Category: Barometric Relief

I have a large gymnasium that uses two motorized barometric relief dampers. They are noisy and I'd like to get rid of them. I can't use standard relief dampers because sometimes the pressure is positive, and other times when school is in session the ...