foamypirate wrote:Spraying water on the condenser dropped it to ~300-315, which is somewhat expected? At 1500+ RPM, the pressure would quickly rise enough to cut off the compressor via my HPCO (~455 psi, according to the spec). .
Tom Greenleaf wrote:Sorry! I missed that. That suggests if no change or little condenser is defective or somehow already clogged some? Yikes - best only way to know is dump it!
foamypirate wrote:I think you are right on the overcharge, took a bit out of it, and the temps dropped 1-2* at the vent. Not much, but an improvment. I'll work some more on fine tuning the charge. The humidity was a bit higher this morning, and the suction port at the compressor was sweating, so I think it's boiling off to some extent in the accumulator and suction line as opposed to the evaporator. I also re-did the water test on the condenser this morning. It was around 275 psi at start-up for 84F and 60% humidity, but dropped to 225 psi with water, and the low side went down to 35 psi. After removing a small amount of refrigerant, it took much longer for the pressure on the high side to climb back up. I think I can improve that with some sealing foam between the radiator and condenser, as that definitely seems airflow related. Temps going down the road this morning, in morning sun, were 47-46* at the vent. Getting there!
Tom Greenleaf wrote:OK - I don't mean flood with water - it's effective with a decent mist even.
Now lower pressure and mentioned HPCO doesn't cut out. How's the output at vent's now? How much did you remove?
Reason that's so important is at some point you'll want to do something and discharge system and the weather may suk and have no chance to get it right again then and go thru this whole hassle all over again later,
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