01-30-11, 12:21 PM | #11 | |||
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This is the $35 Refrigeration Recovery machine I bought. This is a recovery machine a friend of mine bought that I have borrowed. Quote:
The answer is yes, if both systems are designed to use he same kind of refrigerant. The refrigerant doesn't wear out. And as far as I know, the lubricant which is mixed in with the refrigerant, is not exposed to air and does not wear out either. However, if the first system failed because the motor or bearings failed, and it overheated and died, there could be problems with re-using the old refrigerant. There are also compatibility issues that were previously discussed that should be understood. So, if you plan to re-use refrigerant, make sure you don't mix refrigerants, and make sure that you are using compatible families of refrigerants. Quote:
I think that trying to use a refrigeration-to-air heat exchanger as a refrigerant-to-water heat exchanger might be useful to prove a concept, but beyond that it is a waste of time. It is true that heat will be exchanged, but the aluminum fins will eventually become fouled. Also the galvanic difference between copper and aluminum would invite corrosion. For the price of taking someone out for dinner at a moderate restaurant (not burger king) you can buy a beautifully engineered and perfectly made heat exchanger that will last for many years. But in-tank heat exchangers are being made and will most certainly work as outlined in Piwoslaw's most excellent thread. Quote:
If I have understood your question correctly, the answer is that within normal boundaries, the length of the line set will have a minimum impact on cap tube sizing. The size of the thermal loads, and the operating temperatures, and refrigerant pressure, and the size of the compressor, and the type of refrigerant will have the greatest impact on the cap tube configuration. A long line set can require that more refrigerant be introduced into the system to make up for the extra system volume created by the extra line set length. In an extreme situation, the line set could be so long that it would itself, become a significant part of the thermal load. Then, the cap tube configuration would be affected. Best Regards, -AC_Hacker * * *
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I'm not an HVAC technician. In fact, I'm barely even a hacker... Last edited by AC_Hacker; 01-30-11 at 01:04 PM.. |
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air conditioner, diy, gshp, heat pump, homemade |
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