Depending on the the out side temperature even when the air conditioner sits idle, the refrigerant inside the air conditioner is changing from a liquid to a vapor .
I assume that the smoke you experience hasn't burned your house down yet. The vapor that appears about 12" from the a/c is cold air from the air conditioner meeting the warm air in the room it is cooling, and the cold condenses water vapor out of the hot air, just like a cloud. So it may be steam you're seeing -- not smoke. It should go away after the room cools down a little. If this is not the case, and it really is smoke in your room, then you need to turn off the air conditioner, then unplug it, and call a certified a/c technician. It's possible that someone may have overcharged the freon in that air conditioner.
A licenesed tech certified .
The ice that forms in a freezer compartment is usually frozen water vapor from the air + water vapor from the foods themselves.
by compressing freon as a gas it can be concentrated in one place where it can be condensed into liquid freon once again; in liquid form it can be evaporated as in the vapor/compression cycle of a mechanical refrigeration system absorbing heat as from the food in your fridge.
Chemical composition and properties, different system pressures, different pressure/teperarature relationships in when they'll change states from liquid to vapor... you never mix refrigerants, period.
The thermodynamic data at 2.5bar and -20°C indicate that Freon (R-22) is in fact a liquid at these conditions(see link).
Whenever the freon filled system is opened air gets in and to remove it you attach a vacuum pump and empty the entire system before adding replacement freon. HOWEVER, if you have already added freon and do not have access to a vacuum pump, just bleed out the air and freon at any convenient point, the freon will push out the air leaving only freon vapor, then recharge with new freon and you will be air lock less!
A room air conditioner will being putting out a haze if the air contains high levels of humidity. The mixture of cold and warm air will produce visible water vapor.
Yes, it operates the indoor fan at a slower speed resulting in a colder evaporator coil thus condensing water vapor from the room air passing over it more effectively than if the fan was running at normal cooling speed.
AnswerWater vapor will sometimes exit your car's vents when hot humid air passes through the A/C cooling system too fast for the condensing moisture to form into water droplets. This can be resolved by selecting recycled air from inside the car, but the vapor is not harmful and usually doesn't last long.
water vapor carried by the winds
I have one that uses Freon 114 nontoxic passive system with a Ford tank with a coil located inside the house and above the collector. The Freon boils within the collector, raises as a vapor, condenses in the water tank releasing energy to heat the water, and returns to the base of the collector to start the cycle again.