Jeff, I do not follow what do you mean psi gauge and absolute?
I have 3 data loggers getting water temps in the pond as we speak, I will pull them out on sunday. The extremely questionable thermometer I have in there right now is saying 50F, but that isn't on the bottom because my loop wasn't long enough to go all the way to the 17' deep area.
The TXV is not allowing me to get anymore than about 82psi suction, everything I add to the charge goes straight to the discharge psi.
I will have a larger capacity compressor soon I hope.
More data, one was last night, one was just now. These are both with the water to water heating mode on. Water temp says 65F and pond water temp is about 50F, no idea what temp the ground is.
Last night, 251psi discharge, 80psi suction
Tonight, 226psi discharge, 78psi suction
