jeff5may--you recommended a TXV valve and I am about ready to order one. I also found one on Amazon, it seems smaller than the one you recommended. Would you mind taking a look and let me know which of these two makes best sense to you. This is a really small system, it draws around 400 watts.
https://www.amazon.com/SPORLAN-BFVE-...ords=txv+valve
https://surpluscityliquidators.com/p...-r22r407c.html
Thanks