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The pressures on the label relate to the maximum pressure the system can withstand before bursting, not the operating pressures. This is why the low side operating pressure is so low. They are not forced air systems, but mechanical systems in the way they transfer heat. These are actually based on small apartment/dorm room refrigerators so they are high/medium temp systems. The label you showed does look like its off an Edina machine and Edina/Frigidaire didn't make but this one model. Ours are different in that most vending/small appliance systems don't use an expansion valve (unless it's a large system or a frozen system) and none use an orifice valve.
#Antares vending machine compressor how to#
Not only am I interested in this specific machine but general info about refrigerators and freezers in general.Īs you are finding, knowing how to work on auto A/C systems doesn't translate over to other refrigeration systems. Yet others say that for a freezer (which this unit really is with a different thermostate to keep the soda from freezing, I think) it is OK for the suction line to have frost the entire way up to the compressor because the system is set up to have the freon below freezing the entire time it is inside the cabinet and will still be cold enough to frost the return/suction/low line outside of the cabinet.Īny opinions/observations would be appreciated. Some say that if the suction line is frosted the entire way to the compressor that means the system is overcharged.
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I am getting very conflicting info about frost on the suction line. Hoping someone has a Anteres combo with a charging tag still attached that they can varify the charge weight. For $5 of freon I figured I did not have much to loss. It held the vaccuum for 1 hour so I figured if it was leakind it was not a huge leak and was worth trying to recharge. But given the choice I figured I could not go wrong filling it via the factory specified charge weight. I am familiar with the idea of filling a system via pressure only. Yes, I peirced into the low side (what I refer to as the suction side).
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#Antares vending machine compressor full#
I have a full gauge set that I use for auto AC work.
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Perhaps the suction line is supposed to be fully frosted all the way up to the compressor, can anyone give me some insight? The machine is cooling well now, my only concern is the suction line is frosting up heavily now and I want to make sure the issue is not with the amount of refrigerant that I put in. I have attached the photo of that tag that I am referencing.Ĭan someone please verify that this is the correct charge amount for one of these machines. I got this number from a photo that I found of a tag that I think was of an Edina machine. It stopped cooling, I put a bullet peicing valve on the suction side and put in what I think was the correct charge ~128grams. I can not find a tag to tell me the correct amount of R134a to put in the unit only a label on the compressor specifiying R134a. I know it is junk, but the price was right and it still does the job in a small office. I have an Antares Combo built around the notorious Edina upright freezer converted into a refrigerator.