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Thank you CountOlaf, that was a big help

Guys, I have a 2-1/2" Chilled Water line penetrating a basement foundation directly beneath a eletrical panel. Are there any minimum distances, or precautionary measures i should take to do this. If so or not, what codes could i got to help me out with this? BOCA? NFPA?

Guys, I have a 2-1/2" Chilled Water main penetrating a basement foundation that will be located directly underneath an electrical panel, will this be a code issue? And if so or not, will BOCA of NFPA touch this issue?

does anyone know how to insert a .tif file into 2005lt????

Does anyone know where I can get some design criteria for an Autoclave room and also a chemical storage room other than ASHRAE. From past experience I know some paremeters vaguely, but it's been a while. I need to know exhaust requirements, filtration, pressurization, blade material (spark...

Guys, Do you have any input on how to fire protect sch. 40 pvc pipe passing thru a fire-rated floor. Is there a minimum gauge sleeve I need to use?

Guys, Does anyone know of a zone & bypass damper that is capable of handling 3,500+ CFM. Trane VADA's only are capable of of providing up to 2,500 CFM. Also, it needs to be capable of communicating w/ a packaged gas/elec. Trane RTU...any input?

nans, Thank you for your help.

Guys, I was told per the IMC Appendix A, it would tell me that I'm only required to supply half the outside air to the space if it was only occupied for 3 hrs. or less. 1.) Is this correct? 2.) When I went to the Appendix A, It talked about combustion air and clearances...where is this code...

In the IFGC it states that you can not run gas piping thru elevator shafts, duct work, dumbwaiters, chimney or gas vents, or clothes. From this I'm going to assume that you can as long as its steel pipe.

CRG, Although I don't like your response....you are right. I will do a thorough code review and come back if I still do not have an answer. You are a respected source here @ eng-tips, and I will also apply that respect to your responses and advice. Thanks

yes they are all required in Massachusetts

I should've clarified it a little bit better. My main is in the basement and I want to rise to the first flr in an interior wall between the studs....Is this possible?

Guys, Can I run a natural gas line thru interior walls, and if so are there any specific requirements that I need to meet in case of demo. work being done in the future.

Does anyone know of any Plastic or Black Steel R,G,D Manufacturers?

I'm running a closed-loop from my chiller to my condenser coils back to my chiller

Guys, Does anyone have experience with underground piping for a cloed-loop chilled water system for a residential house? I plan on using a 3" PVC supply line to the house (500 ft to the house)....some questions pop into my mind like.. 1.) How do you penetrate to the ground? Bracing or...

YardDarg CFM = Volume x ACH/60 ACH=AIR CHANGER PER HR CFM=CUBIC FEET PER MINUTE

Guys, As some of you might know already, I'm knew to the HVAC/R trade, and I've come across a simple problem for you guru's (haha). A residential building (near the shore)that I've been working on needs dehumidification in the basement. Our ductwork is already sweating, since we haven't...

Thanks alot, that helped alot...does this damage any of my layers that I've created on the plan or future plans?