R407c

[Rob White]

It would be interesting to hear how that happens theoretically.
From what I read here in link, pressure could go down, if anything, hopefully someone can explain to us.

https://www.wikihow.com/Calculate-Partial-Pressure

Partial pressure of the gas when the gas is ideal but refrigerants are not ideal and I'm not too sure what happens when gasses condense into a liquid. Because the combined pressure of 407 is lower than 410 at any given temperature, the component that is different is the 134 and that makes a big difference.

R125 & R32 evaporate at similar temps at 0 barg (-50deg c) R134a is practically half that at about -26 Deg c so as the 134 leaves the system the 407 slowly turns to 410.

Rob

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