Arrived at location on 2/22/23 - Brought recovery machine up to roof as well as recovery tank. Recovered 11.7 lbs of R404A from this unit. Talked to tech support. Unit is meant to have 5lbs give or take, I added 5lbs 6 ounces of R404A. Went down to evaporator found the TXV frozen. I melted it. Set t stat to 34 degrees, compressor kicked on got to temp, kicked off, good to go. This unit is a freezer being used as a cooler. As long as the Tstat is set to 34 they are good.