to evaporate the refrigerant
Inside the unit under the evaporator coil. The condensate drain line is attached to it.
dertty evaporator coil , low charge ,restriction on any of the line condenser fan diffectedType your answer here...
$400 to $900 depending on the evap size, location and access to the unit for the serviceman. A crawl space is not cheap or fun.
Don't do it unless you are certified , plus buying R22 you need a certification. Check your evaporator filters , wash your condenser coil.
Mold.
A "coil" is a length of copper or aluminum tubing that has been wrapped or folded into a compact package. A refrigerant gas, such as Freon or ammonia, is pumped through the coil by the compressor. Air is blown past the turns of a coil to absorb or reject heat. There are two coils in an air conditioning unit, or any refrigeration unit, for that matter -- an evaporator coil inside (gets cold) and a condenser coil outside (gets hot).
The coil that serves the inside of the house is called the indoor coil. The reason is that the indoor coil is a condenser in the heating mode and an evaporator in the cooling mode.. (pg. 1077)
This is a assembly of a coil of copper or alumnium tubing and fins inside the house heater unit that cools down for the furnance blower to send cold air to the living spaces.
fan coil unit
The outdoor coil is a condenser in the cooling mode and an evaporator in the heating mode.. (pg. 1077) -MAS
-reduce efficiency of your unit,and increase pressure ratio of the compressor,-
re-level the unit,and/or clean the coil