I just installed a new inside unit ( 3 ton split) It still cycle's the same and I'm getting a 17.5 deg. Temp difference.When the unit start's up and shut's down there is a lot of loud gurgling,the smaller line jerk's and the coil doesn't get cold all the way to the top. Were the line's evacuated properly -could it be air bound. Maybe the inside coil doesn't match. What would cause this side affect. The previous coil was old (outdated)and clogged in section's I couldn't clean but I still got a 20 deg.temp.diff. and it never made that much noise after it started or shut down. I could hear the hissing as the gas/liquid ? Settled but it was never such an ATTENTION GETTER. I'm mad as h*** because I just don't think it was done right.?
