Yesterday, I had to take my wife’s Lexus RX450h which is a hybrid to the dealer for some service. The AC system is electric because when the car is stopped at a light the engine shuts off but the AC keeps on cranking out cold air. Granted, the car has a large lithium battery bank that can carry the load without batting an eye. I did put a thermometer in the dash vent before I left the house and within two blocks the vent temp hit 40F and stayed there the whole time. It did not matter how fast the blower was going. Right after I installed the CR system earlier in the year I had the vent temp down to 40F but now that it is in the heat of the Florida summer I’m lucky to reach the low 50’s at the vent with a CTS set at 5C. This tells me that my CR system will need to reach that same vent temp to be effective. Unfortunately, the CR evaporator/blower is soaked in condensation after a short period of time. The condensation is robbing the system of cooling that never makes it to the vents. I am in the process of adding external R-6 foil backed insulation to the evaporator/blower unit and the associated ducts. I believe this will help eliminate the sweating (condensation) on the unit and help lower the vent temps.
This was after a drive showing the amount of condensation on the unit. The amount of moisture in the frunk is not good since it is not a part of the internal condensation drain system.
