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Thanks! I appreciate all the help boys! I'll be back at it in the morning... Hpefully will make some progress. Sorry for the lack of info on the valves.

Haven't taken them yet because if I add refrigerant my head just comes up and suction stays at 60

Tis is a new start up! The valves were sent out with the equipment.... No power element, and I'm not sure on the brand. I'm really questioning the size on them, there both 4ton valves on this dual...

Proefco. I had just ghanged out the dryer today after seeing my pressure's and the first thing I checked was for some kind of freezing. I could not find anything even at the txv. My line temp pretty...

ascj. I unscrewed the bottom of the valve where the spring is located and inside where the refrigerant comes in is this Orifice. The best way I can explain it is a small cylinder with 2 small ports...

ascj. No the orifice is inside the actual valve. Not sure if that is exactly what it is but it looks like one.
Prorefco. Out door temp was in the low 70's and the charge is not correct I know but...

I opened up my valves thinking there was a screen but found a fixed orifice instead, it was clean of any obstructions. Not sure on the cfm and have not taken any sh or sc readings yet because I am...

I am having issues with a Lennox 410a 7.5ton heatpump system. The system has a dual evap coil ran off a single ciruit compressor. My running pressure are way off with my low side at 60 and my high...