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How do I find the size in tons of a DuctlessAire heat pump or air conditioner from the model number?
Tuesday, February 22, 2022
You can determine the size in tons of your DuctlessAire HVAC system by examining the model number on the data sticker at the side of the condenser (outdoor unit). Look for first two numbers in the middle of the series of letters and numbers. It should be a number divisible by 6 or 12, and represents the nominal BTU of the system in thousands. A ton of air conditioning equals 12,000 BTU so, using the DuctlessAire model number DA2421-H2 as an example, 24 divided by 12 equals 2, and the unit is 2 tons. The following two numbers are the SEER of the system.
Here’s a rundown of the range you will encounter: 12 = 1, 18 = 1.5, 24 = 2 tons, 30 - 2.5 tons, 36 = 3 tons, 42 = 3.5 tons, 48 = 4 tons.
To determine the age of a DuctlessAire system, see our blog post How do I find the age of a DuctlessAire heat pump or air conditioner from the serial number?
To learn more about heating and air conditioning systems, see these other blog posts:
• How can I find out the SEER of my air conditioner?
• My air conditioner won't turn on. What's wrong?
• How can I find out the size of my air conditioner?
• How can I find out the age of my air conditioner or furnace?
• How can I tell whether the condenser (outdoor unit) is an air conditioner or heat pump?
• Where is the air filter for my central air conditioner and furnace? I can’t find it?
• Does an old air conditioner use more electricity as it ages?
• How did homes stay cool in Florida before air conditioning?
• What is wrong with an air conditioner when the air flow out of the vents is low?
• Why has the thermostat screen gone blank?
• Why does it take so long to cool a house when an air conditioner has been off for a while?
• Why is my air conditioner not cooling enough?
• What are the most common problems with wall/window air conditioners?
• Will closing doors reduce my heating and cooling costs?
Visit our HEATING AND AIR CONDITIONING page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.
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