Lynn,

Good information- what size are they? and how come these air conditioning cores take the pressure so well?

George ( down under)

 

When your air conditioning compressor is running, the high pressure side is about 225 PSI. The excess heat is removed in the radiator and then is released into the evaporator core through a restrictor or a adjustable orifice power valve. The evap is on the suction side of the pump and pressure drops close to 40 PSI. The expanding gas drops the temperature into the high thirties. Air leaving the core should be a solid 20 degrees below inlet air. The static system pressure is above 100 pounds. They have to be very strong.

 

Lynn E. Hanover