Air-conditioning

What is in the room?

People? How many?

Computers? How many?

Electrical equipment? How much?

Gas fired heaters? How many BTU?

"Roughly"

* Residential/light commercial = 400 to 600 square foot (not meters) per ton of air conditioning.

• 600 CFM per ton
  
• 12,000 BTU per ton

hmmmmmmmmmmmm .......... just to be a pain (and try to illustrate the openness of the original question)

Is that residential/light commercial in the mountains of Siberia, or the deserts of Africa?

Here is a the answer to your question.

tonnage = 2000 BTU/hr

Btu stands for British thermal unit.

You will need as many as are needed depending on whether its hot out or not.

Check and see if its hot out, then figure it out from there.

Best wishes,

Hi Omar,

As reply #1 has mentioned. you need to be more specific. Usually these type of information can be find easily in any AC handbook or you can refer to ASHRAE (American Society of Heating Refrigerating and Air conditioning Engineers) standards and you'll get your answer easily.

First thing 1 ton = 12000 btu and 400cfm per ton , as genrally in india people used to take out tonnage through thumb rule i.e 1 ton will be suffiecent for 1000 cubic feet of area it will compensate for all electrical,people,glass etc.you can follow this it will work for you.

Good morning Guest. If 1 ton is required for each 1000 cf, and the ceiling is 8f high, then 1 ton would only serve 125sf. This would mean a typical 1500 sf house would require 12 tons. Did you mean something else?

Square footage is only ONE FACTOR in calculating required cooling.HEAT LOAD is the final determinant.You must find heat load.An A/C unit moves heat.

Rule of thumb calculations are not efficient means of calculations unless accompanied by years of experience in judging heat load,including occupancy, machinery load, window area,local climate,insulation in walls,ceiling,floors.So in short,you cannot reliably estimate tonnage without all pertinent factors.If oversized or undersized,occupants will be uncomfortable.

Bars and taverns 90-100 sf / ton

residences 450- 600 sf / ton

libraries 240 sf / ton

dept stores 350-400 sf / ton

hospitals 250 - 350 sf / ton

As you can see it varies widely

Consider this:

A window air condioner hooked up to 2 cubic foot, 10,000 watt oven.Very small area to cool, very large heat load.Size of area is irrelevant, only heat load matters.Must calculate heat load to determine cooling.Heat load (ideal):32000+ BTU approx. to remove heat, you need at least 3 tons(36000BTU).

Need a lot more info, average temperature outside for hottest time of year, type of wllas, insulation type and R rating, amount of heat load, door and window sizes, etc.... Don't know where you are but in the US, there is a J manual that will tell you all things to take into account to calculate needs.

Yes you can keep it with out any ristriction but just concentrate on the drain of the air conditioning