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Refrigerators

load gas without emptying

Franciscocisneros
hace 5 años
hace 5 años
Good night I have to carry out a gas charge in a refrigerator that carries R-12 gas but I don't have a vacuum pump and read in other comments that replace a valve to make an empty car as I could do thanks
trifocotecnico
hace 5 años

If not as an emergency, use another compressor, calculate 1/5 hp up, weld the connections, connect the manifold and go, that is going to take you a little longer but be patient and ready, DON'T FORGET TO VALUE ME, regards

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davidefrainrod
hace 5 años
hace 5 años
Hello Francisco, it is one thing to go check the refrigerator and verify that you lost gas but still have a bit to purge the hose and reload I did it with up to 2 pounds of pressure almost no gas but enough to purge a clear hose therefore if gas can come out of the air but at the moment and with the owner's key after explaining everything I did and they were doing well until today. But if you have no pressure at all, there is nothing left to do but empty and with respect to self-emptying in a family I think it could not be done and in the commercials if they have service keys if but it is not an absolute vacuum or good vacuum since the compressor does not It is a vacuum pump and is not designed or has enough suction to do so or to remove moisture comments value response greetings
Franciscocisneros
hace 5 años

comes out Thank you very much if you still have 1 and a half pounds of pressure when I measured it but I didn't know if I could load gas since the system is still closed, what if I don't know if I connect the hose and when it starts before tightening the valve, open the gas and a little refrigerant leaking so that there is no air left in the hose and the hose has just been adjusted properly; or connect the direct hose and start charging the freon normally that you would recommend me thanks

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davidefrainrod
hace 5 años

I use a bone manifold are two watches to measure HIGH AND LOW pressure and each watch has a hose connection below I connect the hose with a low clock and with the low key closed, I connect hose to a compressor valve and then I open a little to purge hose low. Just there, I connected the hose of the gas cylinder to the manifold and purged that hose by opening the other high key and closing the key. Just there I have the two hoses filled with gas just there I can open the low key so that gas enters

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SOBERANES
hace 5 años
hace 5 años
look at the problem is that the chemical combination of the air and the refrigerant generates acids which attack the compressor winding insulator and the compression valves in addition to the cooling costs and therefore will be very saturated with refrigerant so that it reaches a temperature ideal If you do not load without a vacuum, the compressor will not last for at least 3 months If you do a self-emptying, it is likely that the engine will burn when it is empty because you put the engine in great demand but if it remains it can work for years although there are also risks I advise you to buy a pump with the gain of the load you do not win but you already have it for next loads and if not better get another use compressor and use it as a pump by connecting in the suction line at least 30 min because it is less efficient but there is no risk
rubensiño
rubensiño
22.830
hace 5 años
hace 5 años
Good refrigeration practices colleagues contribute better look for a vacuum pump if you do not get get done autovacio luck
willyguillermo
hace 5 años
hace 5 años
I agree with Rubensiño, do not advise techniques that we know are wrong, the lack of vacuum can damage the compressor motor for different reasons, advice vacuum with a vacuum pump.
trifocotecnico
hace 5 años
hace 5 años
Valve of what? Nothing happens, just throw gas just the same, logical the right thing is to make a good vacuum, but for an emergency zafa, unless you put MP39 greetings
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