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Will turn www.example.com into [URL]http://www.example.com[/URL].
As long as the oil sump is warm! If that is cold you have floodback
Originally Posted by BobFrost Hi guys, This is a theoretical question. It's not my installation. I took a photo of a compressor unit with suction accumulator installed. Why is the compressor frosted although there is a suction accumulator present in a system? As explained earlier, frost doesn't always mean floodback. Here's a pic of a supermarket rack with a measured 28°F of suction superheat...ie, textbook normal conditions for the application: Attachment 814469
Originally Posted by TechmanTerry Just suppose that this is a freezer. Just suppose that the box temp is -12*F and also suppose that the TXV is set for a 6*SH. So I suppose that the "vapor only" refrigerant leaving the evap is also "liquid free",and at a temp of -6*F, meaning that the accumulator is not being used as a temporary liquid holding tank because there is no liquid to be held in the accumulator,at this time. Now suppose that the -6*F freon inside the suction line has some moisture in the air on the outside of the suction pipe. I now supposed that the moisture in the air would now FREEZE out of the air causing a frosted suction line and possible/probably/more than likely a frosted comp, I think. So it is very possible that the frost is normal. But on the other hand, if this a med temp box, then they have some major problems. Good explanation, but you forgot to include the evaporator TD. So assuming a -12°F box temp and a 10°F TD, the SST would be -22°F.
Let's suppose that TechmanTerry is correct and that he gave a very good explanation.
I believe it's a LT application because there is a head fan installed.
Just suppose that this is a freezer. Just suppose that the box temp is -12*F and also suppose that the TXV is set for a 6*SH. So I suppose that the "vapor only" refrigerant leaving the evap is also "liquid free",and at a temp of -6*F, meaning that the accumulator is not being used as a temporary liquid holding tank because there is no liquid to be held in the accumulator,at this time. Now suppose that the -6*F freon inside the suction line has some moisture in the air on the outside of the suction pipe. I now supposed that the moisture in the air would now FREEZE out of the air causing a frosted suction line and possible/probably/more than likely a frosted comp, I think. So it is very possible that the frost is normal. But on the other hand, if this a med temp box, then they have some major problems.
The theoretical answer is by having a surface temperature below 32°f. [emoji23] Maby the accumulator is full because of an overcharge and or evap fan failure. Originally Posted by BobFrost Hi guys, This is a theoretical question. It's not my installation. I took a photo of a compressor unit with suction accumulator installed. Attachment 814468 Why is the compressor frosted although there is a suction accumulator present in a system? Sent from mars using Tapatalk
Frosted compressor w/ suction accumulator Hi guys, This is a theoretical question. It's not my installation. I took a photo of a compressor unit with suction accumulator installed. Attachment 814468 Why is the compressor frosted although there is a suction accumulator present in a system?
Frosted compressor w/ suction accumulator
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