Smelly combustion exhaust gas

[DoubleDMechanical]

I have a Trane 5 ton rooftop that emits a strong odor from the combustion blower. The unit is about 2 years old. There is no combustion air restriction and the manifold pressure is correct. Anybody ever experience this problem?

[timebuilder]

Not so much on a Trane RTU, but it is usually indicative of a combustion issue that must be discovered and corrected.

[HeyBob]

Get your Testo out and combustion test it. Amazing what you can find sometimes, even on a new unit.

[gravity]

Get your Testo out and combustion test it. Amazing what you can find sometimes, even on a new unit.

Amen.

I use my analyzer on every unit.

[hvac wiz 79]

One thing I never got in deep with is combustion analysis. I've decided I need to really get heavier into this. Any of you guys have good links to informative reading and recommendations on what type of combustion analyzer to get?

Sent from my SGH-T999 using Tapatalk 2

[mikeacman]

There was a local guy that died from co poisoning,,,,while working on a roof top... I wouldn't breathe to much of that until you test it

[timebuilder]

Do you have a link to that news story?

[HeyBob]

One thing I never got in deep with is combustion analysis. I've decided I need to really get heavier into this. Any of you guys have good links to informative reading and recommendations on what type of combustion analyzer to get?

Sent from my SGH-T999 using Tapatalk 2

Take the Nci class by Jim Davis

[mikeacman]

Do you have a link to that news story?

not sure it made the news ,,,one of my coworkers brother in law was the victim in the neighboring county....osha is involved. As well a bunch of lawyers

I'll talk to him and see what I can dig up ,,,happened last year ,,,

[kdean1]

Take the Nci class by Jim Davis

+1

[timebuilder]

not sure it made the news ,,,one of my coworkers brother in law was the victim in the neighboring county....osha is involved. As well a bunch of lawyers

I'll talk to him and see what I can dig up ,,,happened last year ,,,

You mean in 2011?

You can send me a PM with company name, etc, if you like. I want to look at the OSHA file.

[mikeacman]

I stand corrected .... Guy died in a basement working on a natural gas unit.... He did die from CO poisoning...

I could have sworn it happened on a roof top... I had a couple really big units pushing thousands ppm of co out before and I still think it would be a bad idea to huff exhaust in that condition ...roof or enclosed space...

Don't know the company name and don't know his name ... Didn't push my comrade for intimate details...

No harm or foul intended ... Didn't intend to troll either...

Sorry for the bad info

Forgive me for my fault . Again it was not intentional or trolling

[mikeacman]

I believe it happened in Henderson KY BTW

[mikeacman]

Here it is...

http://www.osha.gov/pls/imis/acciden...l?id=202568903

[DoubleDMechanical]

I know I am getting too much combustion air. I don't know why. Just thought someone may have run across this situation before.

[timebuilder]

I know I am getting too much combustion air. I don't know why. Just thought someone may have run across this situation before.

Not on a Trane. Combustion air flow is controlled by the holes in the plate where the pipe comes from the gas valve.

What test leads you believe that you are getting too much combustion air?

[terpfan_]

Without a combustion test how can we help you? Check gas pressure inlet and outlet verify what nameplate calls for. The analzyer will give you o2, co,co2, efficency as well other things depending on model. Get back to us with those numbers and someone should be able to give you a place to start.