soooooo. how does it make it colder? do you change out the piston at the evap coil? move the bulb on the TXV? whats the super heat and sub cooling along with pressures before and after. looks like a bit of smoke and mirrors to me.
If your supply vents are at mid 60 degrees ,you have an issue,as the unit runs during"installation" your return air will be colder SO your supply air WILL be colder,buyer beware, and there goes your warranty...
