Bryant/Carrier 410a systems with a TXV have a subcooling of 8 to 16. Check the data plate or the table inside the cover for the subcooling for the specific model/tonnage. Make sure airflow is right, charge fixed orifice by superheat, TXV by subcooling. After getting the subcooling right you can check the superheat to make sure the TXV is working.
I never use subcooling to check charges. Not necessary. If it's air conditioning that you're working on if you are going to check the superheat you must wait until the house gets around 75° or cooler. The best thing to do and air conditioning is check your temperature drops and if you're getting a good TD you're probably there. If it's 95 degrees in the house or going to have high superheat ...
When discussing the basic refrigeration cycle, we commonly use the terms superheat, subcooling, and saturation, but what do they mean and how do they help us troubleshoot a system? Each of these terms ...
High superheat is right when you have a heavy load, but that doesn't reflect the normal subcooling at such a high head pressure. Filter-Drier, if you have one, may be clogged.
I have some general questions on superheat and subcooling for walk in coolers and freezers, I am not working on a walk in right now that i can refer to just want to gain a little more understanding. 1) What is the main reason for getting proper superheat and subcooling on walk in coolers and...
checking subcooling on mini splits Jump to Latest 12K views 51 replies 15 participants last post by Dennis Osawa T