Dry Mode: There are two versions of this and To understand this you have to understand how AC works.
AC "Condenses" water From the air on the cold portion of the AC.
Dry Mode can be two things.
A De-humidifier mode designed to dry the air in a room or building
Dry the interior workings of the AC to prevent mold and mildew inside.
A/C will dry the air, helps to keep windows from fogging up as much.
4 which system?
A leaky heater core can do that. Also if the AC is not operative, the defrost mode can't dry the cabin air.
Dry Mode is a function that will reduce the humidity in the room. In this mode, as the air passes through the air conditioner the humidity will condense on the evaporator so that the air comes out drier. Reducing the humidity makes you feel cooler and more comfortable. Dry mode uses less power than cool mode.
The ac unit compressor will run when it is in defroster mode and heat setting is on.
If you have the defroster on the ac will run. It dries the air to help clear the inside of a foggy windshield quickly.
CMRR is common mode rejection ratio. it is the ratio of Differential gain to common mode gain. CMRR=Ad/Ac
Your portable AC may smell musty due to mold or mildew growth inside the unit. To get rid of the odor, you can try cleaning the filters, coils, and drip pan with a mixture of water and vinegar. Additionally, running the AC on fan mode for a few hours can help dry out any moisture that may be causing the musty smell.
Wet cloths can still dry in an air-conditioned room because the AC removes humidity from the air, which helps to speed up the evaporation process. The dry air created by the AC absorbs moisture from the wet cloths, causing them to dry faster. Additionally, air circulation within the room can also contribute to the drying process.
press mode button until you can see the snow pattern
no ofcourse not water would just dry off even if it does not or does come from the AC
If you have it in the defroster mode, the AC pump will run. This is normal.