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My salesman called me today, all trane units are being converted to microchannel in the next few weeks.

the fan is code, has to be 10' off the ground and discharge at a 45 degree angle

I brought it up to the local inspector yesterday, he said "don't worry, it's already an issue."

Thats a factory package from captive aire.

http://captiveaire.com/CatalogContent/Fans/Sup_MPU/index.asp

Restaurant has been open 5 years, no one ever hooked up the cooling!

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should be in a rated vapor proof fixture. lucky it didn't light up the place.

I guess they never heard of a louver....

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5 stories up... The unit was installed like 4 months ago, job isn't done yet. I'm hoping the inspector says something. 20$ says the ductwork isn't r-8 either.

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Got an email today for a request to price out a smoke extraction system. (2) 40,000 CFM fans for this atrium.

This is the window they want to use for the gravity makeup air. 2'x8' louver at 80,000...

haha it was a bid spec job, that the installing contractor decided to re-engineer.

They were supposed to be mounted on a mixing box with return out of the side and OA out of the back, guess he can't read plans either.

yea, but there isn't return air ducted into both sides.

Plan called for economizer mixing boxes to be installed on the bottom of the furnace, with the return air coming out the side, and the OA coming out the back. This is what we got.


5 ton...

Haha, you know the story to the T. The equipment came from New York, but the Install guys were outta south Chicago.

per imc 2009

True, however the requirement of the make-up air to be "tempered" in this climate, I don't think anyone in their right mind would stick a million BTU heater on a gravity duct. The only gravity MUA's...

That would be the "makeup air" there is no unit, just a piece of duct 14x14" duct. based on the size of the hood, you need 10,000 CFM of tempered exhaust/MUA for this hood. I think the duct is a...

Here in wisconsin, it needs to be 10' from the lot line, it's about a foot, exhaust fans have to move.
Maybe they were banking on the 3' below rule, i bet thats why it's so close to the roof.
you...

I wonder why, the shame is these people gave this idiot money. The entire system has to come out. we can reuse the fans at least. CAn you guys pick out all the code violations?
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wow, the inspectors around here don't even look at the gas pipe, it's kind of a joke.

100 Ton carrier, Less than a year old. Installed by a resi shop.

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On start-up, they didn't tighten the set screws. Blower wheel walked and blew out the wheel, shaft,...

looks nice. why so many pipe supports? what do you use to paint the pipe?

My company we work 40 hours strait time in 1 week mon-fri (doesn't matter if its 10 hours one day and 6 the next)
you have two options. for unapproved overtime. either work 40 hours and be done, or...

House is 45 year old, so i'm sure there is no vapor barriers in the ceiling. He has ridge vents and soffit vents. Currently he has an HRV installed to exhaust the room air, which he said works well...

Just got a call from a customer, he was looking for some info on sizing attic fans. I really haven't sized an attic fan before as we stick to mostly commercial stuff.

he has two areas hes looking...