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easy question for HVAC nerds

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Old 10-08-2015, 01:21 PM
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Default easy question for HVAC nerds

I thought I'd ask this here because there's a lot of smarty pants here.

If I rent a 600 square foot office space in San Jose, CA, 2nd floor of a 3 story building with an East facing window, how much is the "standard" A/C capacity it would have?

If I then have 4 people working in it, and have lab equipment that puts out 5 kW of heat, how much more a/c capacity will it need to stay barely comfy (e.g. 78*F on a 100*F day outside)? Hot days here are dry.

If I did not add a/c capacity, how hot would it get on a 100*F day? Or put another way, what is the hottest outdoor temperature that the a/c would keep it at 78*F?

TIA
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Old 10-08-2015, 05:20 PM
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Not an hvac expert but...
1 ton of ac will take care of ~3.5 kw of heat load, so 1.5 tons minimum for the equipment.
If the office space is about as insulated as a house, then 600 sqft needs about 1.5 tons.
Figure a minimum of 3 tons of ac capacity. I would go 4 tons just to be sure.
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Old 10-09-2015, 06:15 PM
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Thanks, this is what I need.
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