By using "Dry Mode", the AC unit extracts excess moisture from the air, creating a more pleasant, cool and breathable atmosphere. When "Dry Mode" is activated, the AC unit's compressor and fan operate at a low and slow enough speed to dehumidify the air without causing a significant drop in temperature.
Dry mode is specifically designed to lower indoor humidity levels. This feature is particularly helpful in humid weather, where the air feels sticky, but temperatures aren't high enough to warrant full cooling. Unlike cool mode, which lowers the temperature, dry mode focuses on moisture removal.
The ideal coil temperature for dehumidification is 45 degrees. The ideal temperature difference between dew point temperature and coil temperature for dehumidification is 20 degrees.
If you keep the fan set to ON, the moisture will continue to be blown back inside. Setting it to AUTO allows the AC to shut off between cooling cycles. The condensation on the coils can then drain properly, rather than contribute to the humidity level inside your home.
If you have established your AC has a dry mode feature, using it is straightforward. Refer to your owner's manual for detailed instructions, the basic steps are as follows: Turn on the Air Conditioner and set it to dry mode or dehumidify mode, this will reduce humidity as opposed to cooling the air.
Using Air Conditioner to Reduce Humidity
In the summer when the outside temperature is high, and humidity rises, use your air conditioner humidity setting (setting your AC to cooling mode) to reduce your home's overall temperature and encourage humidity levels to drop.
Generally, it can take anywhere from 15 minutes to a few hours to significantly reduce humidity levels. For best results, the AC should run in cycles, with each cycle lasting at least 15-20 minutes. Short cycles may cool the air but won't run long enough to remove much moisture.
If your fan is set to AUTO, it shuts off between cooling cycles. This allows time for the moisture on the cooling coils to collect and drain outdoors like it is designed to do. But if your fan is set to ON, the fan runs continuously and blows the moisture right back into your house.
Set the thermostat to a consistent temperature, even at 78°F, to keep humidity levels in check. Invest in a dehumidifier. Dehumidifiers are designed to extract excess moisture from the air. Place one in areas like bathrooms, basements, or laundry rooms for best results.
While everyone's home comfort preferences will vary, we recommend a dehumidistat setting between 35 and 45 percent for Summer.
If your air conditioner is not dehumidifying the air in your house, you may have one of these four problems: Your existing AC system is not the right size. You have a ductwork leak. Your thermostat is set to ON instead of AUTO.
Set the Right Humidity
To get your manually-controlled dehumidifier up and running, set its humidity level. You want it set at 30 – 50%. If there's too much moisture, you'll get dampness and mould. If there's too little moisture, your home will be too dry and attract bacteria.
The recommended relative humidity level is between 30 to 50 percent. Summer is generally the hardest time of year to stay inside this range. Fortunately, using the air conditioner can help. After all, air conditioning doesn't solely cool your home—it also lowers humidity.
Dry mode is ideal for humid climates, offering enhanced comfort without the energy costs associated with complete cooling.
Dry mode, sometimes called dehumidification mode, is a setting on ACs that focuses on lowering the humidity in the room while maintaining a constant, cool temperature. It automatically turns the compressor of the Air conditioners on and off for short periods of time, while the fan continues to run at a low speed.
Relative Humidity Control
The Relative Humidity (RH) measurement on a thermostat is the level of moisture in the air. During the winter, RH levels indoors should be 40 percent or lower. It can rise to over 60 percent in the warmer months. Your home's humidity is impacted by your HVAC system and thermostat settings.
By activating "Dry Mode", the AC system dehumidifies the air, removing excess moisture and creating a more pleasant and breathable indoor environment. Enhanced Comfort: High humidity can negatively impact the perception of temperature, making it feel warmer than it actually is.
In most climates, keeping an indoor humidity level below 60 percent in the summer probably will prevent condensation and mold growth. We suggest a comfort setting between 45%-55% humidity.
Cooling a house from 90 degrees to 72 degrees typically takes about 2 to 4 hours, depending on various factors.
Leaving your dehumidifier on all the time can result in dehumidifying too much, leading to a dry indoor environment. It can cause dry air, leading to respiratory issues, dehydrated skin, and static electricity.
Can you use dry mode air con all day? You should only use dry mode when the air is humid. It's usually not as effective at cooling your home on hot days as the cool mode. The cool mode's main purpose is to cool air, while the dry mode's main function is to remove moisture.
Moisture buildup or condensation on closet walls or room ceilings and walls also indicates high humidity. Humidity should be monitored daily since outside temperatures will change. Consider purchasing a digital hygrometer (inexpensive and widely available) and check it regularly.
WHAT IS THE BEST MODE FOR AC IN SUMMER? In summer, the best mode for your air conditioner is the "Cool" mode, set to a comfortable temperature around 78°F when you're home. This setting efficiently reduces indoor humidity and maintains a comfortable environment without overworking the AC system.