Hmmm.

This question can actually be answered a couple of ways.

First, a "flooded evaporator" is a type of evaporator used in what is generally referred to as a "chiller" system. It means that the evaporator (generally a barrel or drum type vessel) is literally flooded with refrigerant. It is full to a certain level and the tubing that carries the medium that is being chilled runs back and forth through the boiling refrigerant.

Secondly, a "flooded" evaporator is sometimes used to refer to an evaporator that, for a variety of reasons, is not absorbing enough heat to boil all of the refrigerant being fed into it. This can happen for different reasons. Dirty filters or coils, low airflow, over charge, defective metering devices...

Which, specifically, did you want to know about?

 

You pretty much answered my question..also would low indoor air temp cause a flooded evap since there isn't much heat to remove?? And would liquid flow back to the compressor?

 

Low indoor air temps or low load could cause low superheat. Depending on how severe the condition, liquid could reach the compressor, yes

 

Ok thanks for the info,greatly appreciated.. One quick question while on evap, does a heat pump evap coil contain a checkvalve or is it the same as a straight ac evap? Or should I post a new thread?

 

Depending on the manufacturer and the age of the coil it could have an independant check valve, TEV with internal check valve or byflow piston

 

If you have a flooded evaporator, hopefully it's in the basement, because if it's in the attic, your in some deep do do. :grin2:

 

I did not think Texas had basements.