![]() ![]() This allows ample cooling, whether it is a rainy, moist day or a hot, sunny, humid day. Then, as a practical number, multiply that total times 25 BTU. How do I know what size my air conditioner is?Ĭalculate Size To calculate the size, simply multiply the length times the width of the room or area to be cooled. If you see the number 18, for example, divide by 12 to get a rating of 1.5 tons. To get the tonnage, simply divide the number by 12. This number represents the BTUs your unit puts out. In residential units, the number you’re most likely to find will fall between 18 and 60. How do I tell how many tons my heat pump is? For example, if the BTU number listed is 36,000, divide it by 12,000 and you’ll see that you have a 3 ton unit. This will tell you how many tons your HVAC compressor is. How do you find the tonnage of a compressor?ĭivide the number listed by 12,000. You should see the model number printed on rating-plate or decal. Remove the front door and look inside the unit. How do I read my carrier AC model number? Within this combination, you should find an even, two digit number. Look for the model number, which is a combination of numerals and letters. When outside, you should see a data plaque mounted to the side of the condensing unit. Your AC tonnage can easily be found by going outside and looking on the AC unit itself. Divide the number by 12 (which represents 12,000 Btu/hr, or one ton of cooling capacity) to get your AC unit’s tonnage. The possibilities on residential units range from 18 to 60. Within this string of letters and numerals, you should find an even, two-digit number. How do you tell the tonnage of a carrier model number?įind the model number. ![]()
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