smew wrote:Please review and let me know if I am approaching the problem correctly.
lbgold19 wrote:While the section may not be cutting through the largest duct you have to accommodate for the largest duct
Coach wrote:lbgold19 wrote:While the section may not be cutting through the largest duct you have to accommodate for the largest duct
Of course, the solution must accommodate the largest duct; however, the largest duct is not necessarily used to determine the space required.
caitiemg wrote:Coach wrote:lbgold19 wrote:While the section may not be cutting through the largest duct you have to accommodate for the largest duct
Of course, the solution must accommodate the largest duct; however, the largest duct is not necessarily used to determine the space required.
It may me because I've had a long day at work that I'm not understanding this, but Coach, can you explain why not?
mateo1877 wrote:Question just to clarify...
We keep ALL ducts below the joists, right? Even if a main trunk line is running parallel to the joists?
I understand that if they're running perpendicular to each other they need to be completely below, but if the main trunk line is parallel, the top portion of the air supply line could potentially go just above the joists in reality. Coach, can you confirm?
Patt wrote:If a ceiling height is uniform throughout the level, then one MUST design for the largest joist depth added to the largest duct depth on that level regardless of location of section cut line.
No?
Patt wrote:9.) But if the joist and duct run parallel yet out of plane, that does not qualify as same location.
Ferdox wrote:Coach,"
Could you help resolve this:
On what basis does one ignore the largest joist-depth combo for eg in Dorf Solutions book (6th ed. March 2007) on page T-11
the section uses 16" joist even though the Lower level plan on Page T-9 shows there is a 20"' joist .Does anyone know why that is not accounted for in determining the plenum depth.
Please enlighten
mono wrote:Coach,
I understand what is happening in smew's PDF example above, but is there a reason why zone A and B cannot have different roof deck heights at the second level? I am not seeing a requirement except for the parapet (which might be why). Either way I'll do it as shown in his example, but just out of curiosity I thought I'd ask if I am missing something. Thanks.
Coach wrote:mono wrote:Coach,
I understand what is happening in smew's PDF example above, but is there a reason why zone A and B cannot have different roof deck heights at the second level? I am not seeing a requirement except for the parapet (which might be why). Either way I'll do it as shown in his example, but just out of curiosity I thought I'd ask if I am missing something. Thanks.
Read item #1 of the program.
Peng67uins wrote:This has now confused me. I have been taking the duct that comes out of the mech. room as the largest possible duct in the areas that arent the 2 story part. Im not following the logic of the "zones" it seems to be an arbitrary position to just pick a spot and cut it into zones. Please someone explain what I am missing.
Coach wrote:smew wrote:Please review and let me know if I am approaching the problem correctly.
Yes, that's how it's done.
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