#1 Is RLA and FLA the same thing?
#2 How close to RLA or FLA should a compressor be?
#3 Should I hook my high side gauge up to the discharge service valve or the king valve on the receiver? Does it matter?
#4 If I service a newer small refrigeration system (which is mostly what I do) and I put in a liquid line filter drier when it didn't have one before...how do I adjust the charge?
#5 Got into a little argument with a co-worker who has more experience than I do...Me less than a year...him 3 years. I consider us both good techs who want to be as good as we can be and we both actually care about doing things right. Neither of us claim to know everything. It's an air conditioner in the local sugar plant. It cools a room full of electric equipment. The condensing unit is out in the hallway where it is always 80 to 90 degrees. 5 ton unit, no receiver. The evap in the electric room is a walk in cooler type evap with a TEV...I don't have model or make or size...The boss said put it in and I put it in and I have to assume he sized it correctly. I installed a sight glass on the liquid line a few inches from the condensing unit. It always bubbles. We were doing maintenance at the sugar plant and my buddy was concerned about the sight glass bubbling. I hooked up gauges 225 PSIG head=110 degrees. 15 degrees subcooling. Suction was 75 PSIG=44 degrees. Superheat was 17. My buddy wanted to add gas til the glass cleared. I said it was charged okay based on the subcooling. He wanted to know why it was bubbling if the charge was okay. I said I didn't know but i didn't think it needed more gas. Who is right who is wrong and why?