Quote Originally Posted by kayl View Post
Im still thinking not sure what way to go. But i think alot shorter length might work. I didnt want to go to short at the start as i didnt want the hotgas bypass to be too aggressive, didnt think it would have little to no effect at this length considering im pumping hot gas into the head.
Does your oil sep have a float?? I didn’t want to use to many solenoids in the cascade and only wanted one to battle the cold boot. I also didn’t want to stick cold fluids through the solenoid.
Non-floated oil separator as I thought I could do a capillary metered oil return but it's killing my suction pressures. Pumping hot gas into the head + liquid refrigerant won't work as the liquid carries such greater heat capacity vs the gaseous refrigerant. The solenoid I was using was rated down to ~-50C so I think it'll be ok as my HX chills around -40C. I was told solenoids just don't like having cold oil pushed through them as they may not reseal correctly. Sometime in the next 2 weeks I'll buy another solenoid and fix mine, if it works then that might be a route to pursue.