really high cfm in small office room
really high cfm in small office room
(OP)
So I have a building, built in 1940 with 8 inch concrete walls and no insulation that is being converted to an office building. I have run the load calc using trace 700 and the cfm has come out with 11,000cfm for 7,000 sf of space, summer design is 93F. The walls are 75% windows double pane with an estimated U value of 0.6. I'm concerned in some small 1 person office rooms where the load is having me dump close to 800 cfm into a 240SF room with two 12 ft long exterior walls each wall with a 10x6 window. I have each room on a vav w/hw reheat box, but I don't want complaints of drafts, which may be inevitable with the characteristics of this building. I do know that they do not have AC in the building now and they have to close the second floor because it gets too hot in the summer. Should I follow the program, or lower the cfm's some?





RE: really high cfm in small office room
RE: really high cfm in small office room
The way we build has a far greater impact on our comfort, energy consumption and IAQ, than any HVAC system we install
RE: really high cfm in small office room
RE: really high cfm in small office room
RE: really high cfm in small office room
RE: really high cfm in small office room
RE: really high cfm in small office room
I have used linear diffusers above the windows with a heat/cool changeover, where they blow down the window in heating mode and into the room at high level for induction in cooling mode.
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RE: really high cfm in small office room
RE: really high cfm in small office room
If the building was in Miami, 90.1 would not even call for insulation on walls with thermal mass.
The way we build has a far greater impact on our comfort, energy consumption and IAQ, than any HVAC system we install
RE: really high cfm in small office room