old r22 ref cuber.
the water system is working fine, about 30 min cycles, but its only dropping about 60% as much weight as it should be.
110 cond temp, 10 degrees subcooling - evap temp starts off around 30 and drops to about 0
only thing strange is the superheat hunting. if your watching the suction pipe, while the evap is down at the end of the cycle near 0, the suction line is at about 10 degrees and then floats up to about 30 and then suddenly drops back to 10 and slowly works it way back up to 30, does this continuously throughout the cycle. now, ive got the sensing bulb nice and tight and completely wrapped in foam, likewise the valve itself is still encased in the factory insulation.
Im guessing its time for a new txv - f/d - vac and weigh in the charge
Am i missing anything?