Air Conditioner Humidity Mode

Instead air passes through the device humidity condenses on the unit s evaporator and drier air exits the device.

Air conditioner humidity mode.

Cool mode is the regular mode of most air conditioners and does not decrease the humidity in the air but the temperature of the room. The drier air fills the room or area where the air conditioner is located. The fan runs at low speed and compressor is on for short duration in large cycles just to remove extra humidity. For humidity removal a faster rate is not ideal.

Your air conditioner will be effective at controlling humidity only if it is correctly sized for the amount of work it needs to do. In hot humid climates like ours you want your air conditioner to move air at a rate at or near 350 cfm per ton. Many systems are set up to move air at a rate faster than that. If the temperatures are low but the air is humid running an air conditioner in the cool mode will not be of much help.

The fan operates at a low speed while the compressor runs for shorter periods of time to ensure that humidity from the air is completely removed. Dry mode doesn t really cool the room and the cooling effect comes from the removal of excess moisture from the air. Greatly dehumidifying the room. This surely is an electricity saving option during high humidity days as even the fan motor is running at a slow speed and even the compressor.

Running the air conditioner in dry mode helps as it removes the extra humidity in the air. Say your system moves air at around 400 cfm per ton. In this case the dry mode is useful.