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technician installing ductless air conditioner

How Does a Ductless Air Conditioner Work in My Tucson, AZ Home?

The intensely hot summers in Tucson, AZ mean that you’ll need an effective air conditioning system to keep your home cool and comfortable. A ductless air conditioner is a wise choice for many reasons. They’re efficient, don’t require ducts and offer enhanced design flexibility. Knowing how ductless air conditioning works will help you make an informed decision about which system to buy.

System Components and Locations

Ductless air conditioners have one outdoor unit that will be placed close to the exterior of your home. The outdoor unit may also be mounted onto your home’s roof. A conduit containing wires, a drain pipe and tubing for coolant connects the outdoor unit to each indoor unit. A ductless air conditioner supports up to four indoor units, explains the Department of Energy. Each unit controls the temperature in one area or zone of your home. For example, your main bedroom and en suite bathroom could be set up as one zone.

Cycling of the Refrigerant

When the thermostat for the indoor unit detects that your home’s temperature is higher than the set point, it triggers a cooling cycle. The outdoor unit’s compressor sends compressed refrigerant through the tubing and to the indoor unit. The indoor unit’s evaporator coil has a small fan. The fan blows warm air from your home across the coil. The air cools off, and the refrigerant absorbs the heat. The unit’s fan pushes the cool air into your living space.

Controlling the Temperature and Ventilation

To control the temperature in each zone of your home, you program its thermostat. The thermostat offers cool and fan-only settings. The cool setting only allows the fan to turn on during a cooling cycle. The fan-only setting keeps the unit’s fan on all the time for increased airflow and filtration.

For more information about how ductless air conditioners work, take a look at MVP Heating & Air Conditioning’s ductless AC systems, or reach out to us today.

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