A/C Question

You need to fully evacuate a system (or section of the system) to properly repaire a leak. That section of the code is refering to how much refrigerant you can lose in the process of repairing a leak. There is a difference between venting refrigerant and not repairing a leak, even though you could consider it a fine line.

A few little corrections to your statement. First, condensers don't have drain lines, the evaporator coils do. Second, if the evaporator coils inside were frozen up, when the unit defrosted the water dripping off the coil will not drain into the drain pan it will drip right down onto the closet floor.
I worked on A/C units for 40 yrs. so I have a little background knowledge.

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Turn it off and let the ice melt, then if it does it again, call the landlord.

Thanks, I didn't know if condenser was the right word.

But..... sounds like the fix worked.

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"The leak repair regulations do not apply to refrigeration and air-conditioning equipment with refrigerant charge sizes less than 50 pounds (such as residential split air-conditioning systems). However, smaller equipment is not exempt from the refrigerant venting prohibition. EPA regulations prohibit the intentional release of all refrigerants during the maintenance, service, repair, or disposal of air-conditioning and refrigeration equipment."

So yeah it does seem to say that home units are exempt and can be recharged if they have a leak, but you still have to capture the refrigerant when doing work on it to prevent intentional venting when evacuating a system or disposing of one.

My system was made in the mid 70's, has a slow leak and has to be recharged every two years.. The service guy has never said anything about any regulations to have it repaired.. I dunno if I could still get an evaporator coil that would work with it, I think that's where the leak is, from decades of different expansion/contraction rates of the dissimilar metals that make up the coil vs solder joints holding it together..

And yeah IME Icing up is usually a plugged filter meaning no airflow.. Or low freon charge.