1693TA
Senior Member
I mentioned subcooling in post #25. That is the way to do it for a TXV system, if the condenser is big enough to actually subcool. If it's inadequate, you can end up dumping more and more refrigerant until the high side gets too high and the compressor is overworked. But high side does not seem too high on this system, so
I mentioned subcooling in post #25. That is the way to do it for a TXV system, if the condenser is big enough to actually subcool. If it's inadequate, you can end up dumping more and more refrigerant until the high side gets too high and the compressor is overworked. But high side does not seem too high on this system, so my guess is that it needs more, but that is only a guess.
You did mention subcooling and I negated the input as you did not include anything else. We know subcooling and superheat play hand in hand and an undersized, or inefficient coil, (condenser) will drive compressor discharge pressure up, increasing workload on the driving motive, with negative effects on superheat. Too little superheat, (flooding of the evaporator coil) or too much superheat, (evaporator starving or undercharged system, or lack of adequate airflow across the coil) equate to the same result; customer complaint(s). Condenser subcooling sets up the inlet path for superheating to take place in a closed loop system such as mechanical refrigeration.
I'm not going to add a lot to confuse or lose track of the OP's concerns, but I feel he is victim of another "Franchised Box Swapping Ape Show" because what has been posted so far indicates the servicing "technicians" are lost in the problem. He should find another dealer since this is a warranty scenario. OEM customer service will sometimes authorize this very easily.
We all do things different to achieve the same favorable result. Hopefully this scenario plays out well and all will be good.