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AAction Air Conditioning & Heating Co. Blog

Most AC Systems Run at One Speed Only—But Not All

Have you ever turned the air conditioner down to an extremely low setting, in the hopes that your home would cool down quickly? Well, it doesn’t really work like this. Your air conditioner is going to cycle at one speed—high—until it reaches the temperature setting on the thermostat.

Once it reaches your preapproved settings, an air conditioner will, typically, stop cycling. Then, when the temperature is too high, it will turn back on again, to cool your home—on high—until it reaches the ideal temperature range again.

One Speed Fans Waste Energy

When you need to lower the temperature in your home by, say, 10°F, you want the air conditioner to cycle on the highest possible speed, so that your home cools down quickly.

But let’s say your ideal temperature is 78°F. When the home is 80°, the system will cycle again—on high. It takes a lot of energy to start up a fan at the top speed, and it might force the temperature to momentarily drop lower than what you need.

You waste energy using an air conditioner that only moves at one speed, and this is actually what most systems do. But there is an alternative, if you know what to look for.

Variable Speed Fans Are Highly Efficient

If you’re looking for a change with your next AC system, check for air conditioners labeled “variable speed” or “dual speed.” This means that there is more than one possible speed setting, so when it only needs to cool the home by a few degrees, it will run at a lower setting.

A dual-speed motor will operate at about 50% capacity when you only need to lightly cool the home. Variable speed settings adjust as needed to keep the home within one or two degrees of the thermostat setting at all times—without wasting so much energy!

AAction Air Conditioning & Heating Co. Inc. offers AC installation and services in Hilton Head. Allow us to do a quality job at a fair price!

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