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Air Conditioner Coil Specifications: Making Sense of the Differences between Products

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Last week on the blog, we discussed some of the considerations you should make when deciding whether to replace your air conditioner coil or get entirely new system. If you have decided that replacing the air conditioner coil is the right option for you, it is important to make sure that the specifications of the air conditioner coil you choose are in line with your system’s needs. Read on to learn more about what distinguishes the different air conditioner coils on the market today.

Differences between Air Conditioner Coil Options

All air conditioner coils play the same basic role in your cooling system: They draw in air from the surroundings, cool and condition it, and then release it into your home so that your living space remains cool and comfortable, regardless of the weather outside. For most systems, you will also be choosing between cased coils, which tend to look similar to each other. However, there are key differences between these products that you need to consider when making a purchasing decision:

 

  • Unit airflow orientation. The three options for indoor unit air flow are upflow, downflow, and horizontal. Just as you would expect, with an upflow system, cool air is discharged from the top of the unit. With a downflow system, cool air is discharged from the bottom. With a horizontal system, cool air is discharged from the side. When replacing your air conditioner coil, it is essential to make sure that the orientation of your new product matches that of your old one -- or your air conditioner will be blowing cool air in the wrong direction!
  • Width. The widths of cased evaporator coils typically range between 14 inches and 25 inches. Before choosing a replacement, you should make sure it will fit in the place where your cooling system is located.
  • Cooling capacity. You can find an air conditioner coil with a cooling capacity anywhere between 1.5 tons and 5 tons. The ideal tonnage for your home can vary based on a variety of factors, and choosing a product with a cooling capacity that is too high or too low can cause serious problems. Again, unless you have significant concerns about the past performance of your system, you probably want to match up the cooling capacity of the new system with the old one.
  • Refrigerant type. As we discussed in last week’s post, most new systems use R-104A as the refrigerant. However, there are some legacy systems that still use R22, and you can still buy an air conditioner coil that will work in one of those systems, even though R22 is being phased out.

Beyond Cased Air Conditioner Coils

It is important to note that not all air conditioner coils are cased. For unique systems, you can customer order an air conditioner coil configuration that meets your specific needs. With a custom order, you can make sure that your air conditioner coil replacement is optimized for your cooling system, even when you can’t find what you need among the available options.

 

National Air Warehouse offers a variety of cased air conditioner coils, and we also do custom orders. Contact us today for more information!

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