Chosen Solution
I recently picked up a freight damaged saturn commercial freezer. It was dropped by the Looks of it and the heat exchanger had broken free of the Compressor. After changing the oil (polyoster 32) replacing the dryer, and reattaching all connections, I evacuated the system and recharged it with r404a. It now cools down to 18 but it Should get down to -10. Evaporator is functioning Fine and It’s a new unit so all coils are clean. Not Sure Where to go from here. Any help would be appreciated.
Problem fixed if Not solved. I recovered the 404a in the system. Drew a deep vacuum and gave a liquid recharge On the high side at 5.1 oz. Let it run for about 5 hours and found it at -10. Problem fixed but still Not Sure why temps Were off last time I charged it.
