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Old 03-17-2012, 08:57 AM   #1
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roof top unit

what size do i need for an 8 floor 15 room office building i have 2 130 ton units in my drawing now


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Old 03-17-2012, 10:07 AM   #2
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How many people, how big will it be(total sq ft), and what will the floor heights be, how much window surface, how many watts of lighting, whats the total wattage or KVA of all electronics. What types of usage will it have.

Where is the building going to be at. Climate area needs to be considered.


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Old 03-17-2012, 10:07 AM   #3
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Have you had a commercial load calculation done on the building?

That is the ONLY way to properly size for your building.
John Wayne once said "Life is tough and it is even tougher if you are stupid"

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Old 03-17-2012, 10:14 AM   #4
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no way you are going to ball-park this one on the net.

You need someone on site to do a commercial load calc.

Any body tells you different is BSing you or is not worth his salt.
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Old 03-17-2012, 03:00 PM   #5
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You have got to be kinda spacific as to the type of tennats it will have.A doctors office will be a lot differant from a lawyers office.
Since it looks like the offices will be rented with conditioned air,it would be well worth your time and money to invest in an engineering evaluation on size and design before letting this out to bid.The mistakes you make now will be something you pay for ,for a long long time.
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