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This allows the filter to extract more particulate matter like dust, pollen, dander and other allergens. In ON mode, the blower perpetually circulates air through your AC filter. When it comes to air filtration, ON has the upper hand. ON Improves Air Filtration & Circulation vs. Other factors also weigh in, such as the size of your air conditioner in proportion to your home’s square footage. But it is important to note that the thermostat setting is not the only influencing factor in how well your AC removes humidity. Thus, AUTO mode is better than ON mode in supporting proper dehumidification. This means that as the coil warms up, the air flowing over it causes some of the moisture to evaporate and return into your home. However, in ON mode, when the cooling cycle is off, the fan is still running. In AUTO mode, when the system cycles off and the coil begins to warm up, these moisture droplets drip into the drain pan and flow out of your home. In similar fashion, during your air conditioner’s cooling cycle, air moves across the cold surface of the evaporator (indoor) coil, causing moisture to collect and forms droplets. To understand how your air conditioner removes humidity from the air, think about how beads of condensation form on a glass of ice water on a warm day. The AUTO and ON settings influence how effectively your air conditioner dehumidifies. Humidity control is an important function for air conditioners in the Sarasota and Charlotte county area. AUTO Offers Better Humidity Control than ON This would cost the homeowner $8 more per month. One FPL (Florida Power & Light) Expert estimates that using the ON setting would cause the fan to run 200 hours longer per month in a home where the air conditioner would normally cycle off 30% of the time. The ON setting, because the fan is constantly running, uses more electricity than AUTO.
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Now that we’ve covered the nuts and bolts, let’s move on to the pros and cons of AUTO and ON. When your air conditioner is set to ON, the fan runs continuously, even when the cooling / heating cycle is off. When your air conditioner is set to AUTO, both the compressor (the part that cools / heats the air) and the fan (the part that moves the conditioned air) cycle on and off simultaneously when the temperature reaches the thermostat’s set point.
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Either it’s cooling your home at full blast, or it’s off.)Įvery air conditioner is equipped with a blower, or fan, which is a motorized part that circulates the heated or cooled air throughout your space. (“Single stage” means that the air conditioner is only capable of running at one speed. All single stage air conditioning systems come with two main thermostat operation modes – AUTO and ON. Making an informed decision about these settings will impact your comfort and electric bill. Especially when it comes to choosing between your thermostat’s AUTO and ON settings.
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What you don’t know about your air conditioner might be costing you.
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