I HAVE A PROBLUM WITH A NEW 5 TON SYSTEM GOING THROUGH COMPRESSORS DUE TO 29 DEGREE EVAPORATOR. I DID NOT INSTALL IT , JUST TRYING TO CURE PROBLUM. IT HAS A 20X40 RETURN AND PLEUM WITH EIGHT 8in. DROPS. STATIC PRESSURE AT RETURN IS .25, STASTIC AT SUPPLY IS .20. I CHECKED BLOWER SIZE, SPEED, AND ROTATION AND ALL CHECKS OKAY. IT USES A FLO-RATOR #82 AND AM RUNNING A 10 -12 SYSTEM SUPER HEAT. THE SUCTION LINE IS A LITTLE SMALL 3/4 INSTEAD OF 7/8 , BUT NOT ENOUGH TO CAUSE THIS. THE SUCTION LINE RUN IS ONLY 6FT. THE ONLY THING I DID NOT DO YET IS DISCONNECT THE BLOWER AND CHECK FOR FROST PATTERN ON EVAP. ANY IDEARS?

[Edited by coldboy on 03-30-2005 at 06:18 PM]