I have worked with the Yorks for quite some years, and know them well, but I am baffled by something.
On the Yorkmate demand defrost controller, there are 3 temp sensors, an Ambient, a Discharge and the Liquid Line. The Ambient and Discharge are clear. The Liquid Line sensor is the question. I well understand that it reads the freon temp exiting the condenser coil and compares it to the ambient to determine if there is good heat transfer to the ambient air. My problem is that they call it the "Liquid Line" sensor, when there is normally not liquid in that line. True there may be some condensing in the coil under some temperature conditions, but it is not truly a "liquid" line.
Any ideas why this term was used ?