23 year Ranger veteran
Joined: Sun Oct 22nd, 2017
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|I've done R12 >> R134 conversions, yes. And there actually is a significant difference between refrigerants, largely in the boiling temp. FWIW, it just so happens that, R12 and R134 both at about the same temp (in the system, ~32*F, and this temperature, as we know, is significant and in A/C, the evap cannot run at this temp for an extended period of time). Below is a graph that illustrates the relationship between Psat VS Temp for various refrigerants, you may find it of interest.
Last edited on Thu Nov 2nd, 2017 03:16 pm by CBB9M
04 Ranger FX4 Level II, several mods