The evap is a 3 ton and the unit is 2.5 ton.
Supply house said its fine and from my knowledge a 1/2 ton larger coil will just remove more humidity due to a larger surface area, the txv is supposed to be the same
I'm not sure how long you been on the field
But my first rule
Don't trust everything the counter guys tell you.
Are they all new?
Furnace,coil,condenser same brand?
Everything is all new and the same brand.
I never trust the counter guy either i hope all the equipment is correct
Ill find out Monday. Im just not sure any other reasons i wouldnt have any superheat at all?
Also i thought if the bulb gets overheated it would close shut?
Im not to sure, Ive been in the field a while and havent experienced this problem ?? Thanks alot for your help and any other thoughts would be greatly appreicated thanks
Mix matching can have this exact problem
High suction pressures
You might be way over 6000 btu mix matched.
Back in the days were 3 ton condenser was actually 36000 btu
You can get away with 1/2 ton
But if you look at some of these high eff unit
They get a higher seer rating by reducing comp btu.
That's why all 3,4,5 ton are not created equall
So back to ur problem
Let say ur 2.5 is not really 30k btu
All the sudden ur txv is feeding more refrigerant
Than ur comp can pump.
This will result in higher than normal suction pressure
At 70 indoor dry bulb
Ur suction is way too high. 47 coil temp.
I would go to supply house and check to see if this valve is the same if it was 2.5 ton
You might need smaller txv
I've seen couple times where one return grill is either blocked , clogged with dirty filter , had 2 filters with one being dirty , or was never even cut into the wall and had the flex pipe blocked off inside the wall !
I took my screwdriver , poked a hole into the drywall and saw the flex laying there .... whoops