It appears that i have somewhere between 3.5 - 4.5 lbs of charge. <--- It could be less, but I just didn't take a beginning cylinder weight.The URI website says the shipping weight is 32 pounds, but I don't know that I can trust that.
I'm done for the week, but some very promising results. The return gas got itself down to 11 degrees at the lowest. I didn't get any shots because I was busy baby sitting a few things. Unfortunately, with both pumps running and a the other odds and ends I was blowing the garage circuit a few times. The compressor is likely drawing around 10 amps. So that leaves 5 for the two pumps, solenoids, and fans.
After consideration, I believe the activation of the two solenoids connected to the power relay are causing the trip. It happens about 10 minutes after starting (coincidentally the time setting for the delay). I've got to find a way to plug into a separate circuit, or I'll never be able to test the bloody thing through a full cycle.
I relocated the TXV bulb to the evaporator outlet, and my sight glass is now clear. My biggest concern is with how much refrigerant is in the system. My receiver has a 3lb holding charge capacity. The system probably contains slightly more than that, but of course it isn't all in the receiver.
Bottom line, next week will mean the final adjustments.
Superheat = ~17F (Might have to do with my tweaking the TXV last week, will make minor adjustments)
Sub Cooling = ~10F (Right on target.)
Suction Pressure - 35-37PSI
Discahrge Pressure - 310PSI (This is likely high due to the incorrectly adjusted TXV, or I may have to remove some charge. I'm betting on the former.)
Lowest Fluid Temp so far = 30F (Dang circuit breaker. Who places a 15 amp circuit in a garage? Seriously. 20 Amp please?)
I will have to get a new impeller, but in the meantime all is good.
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