1995 Honda Accord Switch for changing the air flow through

Car started out with A/C system only blowing cold occasionally so I replaced expansion valve reciever/drier and blew the lines out with compressed air with the evaporator dissconnected from the system put everything back together didn't change the compressor because the wrong one came in and vendor had to ship the correct one and because low press. Gauge indicated everything to be ok on that side of the system. High pressure side was a little low around 180 psi. So I figured the system possibly had a restriction. Recharged the system and still only cold air every once in a-while a few days later I changed the compressor blowing the lines out once more with everything dissconnected now I can feel 57 degree air at a small opening in the HVAC box but 80 degree air out of the center air vents and 70 degree air out of the two end vents in the dash