This is the 322C kiddy, HEK serial. Got machine with a leaking AC. I work on HVAC so not really a big deal. Got that stuff patched up, pulled a bunch of moisture out of the system, and weighed in the charge. Life should be perfect now. However, vent temps just don't impress me. I would accept it as "is what it is" other than by the data, it really looks like the TXV is underfeeding. Lower than ideal suction pressure, coupled with a bit higher suction line temp. At full throttle I have around 20* of superheat and subcool. Due to the subcool, I am not sure I would try pushing the charge up right now. The superheat seems to hunt around quite a bit, but I realize this is a mobile application. Just not sure if there are target values from Cat. It was mostly hovering around 10-12, and that really should be about right.
This TXV is odd in that it does not have a sensing bulb. I has the hat, but no extension line and external bulb. I'd really like to know more about the TXV and any related charge information.
my suction temps was around 42F. I am sure if I let it run for hours, it would get lower but that coupled with the low suction pressure leans towards underfeeding. If I could easily adjust the TXV, I'd be a happy man! Or I can find a way to lie to it so it will get the job done.
This TXV is odd in that it does not have a sensing bulb. I has the hat, but no extension line and external bulb. I'd really like to know more about the TXV and any related charge information.
my suction temps was around 42F. I am sure if I let it run for hours, it would get lower but that coupled with the low suction pressure leans towards underfeeding. If I could easily adjust the TXV, I'd be a happy man! Or I can find a way to lie to it so it will get the job done.
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