31 year old Heat Pump Copeland scroll cut open & inspected. 

Thanks!

Thanks, yes inside things looked really great, decently had a lot of life left in it and all the wear was external, car on and overheat=low on charge. Bearing wear from floodback=low superheat, (airflow, over charge overfeeding metering device) Copper plating=improper dehydration=acid=eats copper away from the system. Imagine how long the compressors would last if: We installed them correctly, Maintained correctly, And did not have to change refrigerants.

No kidding. Seeing the interior components and the damage related to superheat, low oil and other issue creates takes the mystery out of the gauge readings and why they are so important. Thanks again. Roger

And a good install! No water, no air, no oxidation, no leaks.

Thank you!

We need to do better at installing, Proper dehydration methods, Proper suction piping, Proper airflow, Proper charging. Next comes proper servicing. The 15 minute vacuum, suction looks good, had anometers, and beer can charging doesn't cut it. A good service tech and maintenance can't overcome a bad install. Some installs even look good but without proper vacuum,. It will never see it's potential. Compressors do not die, they are murdered.

Thanks Mike!

Thanks Mike!

What brand of compressor was that?

Shhhhhhhhh 🤫 she does not know, and nobody should tell her!!!!

How do you they're not his? Pyrex cups aren't just for kitchens.

@@love2hvac lol

@@michaelszczys8316 true. Lol

The idea is to use the suction gas to sensibly cool the liquid refrigerant aka add subcooling, this reduces the amount of flash gas after the metering device. On the suction side, the warmer liquid passing on one side of the heat exchanger helps ensure all the liquid refrigerant is boiled to a vapor in the suction side of the heat exchanger before entering the compressor.

No difference in the compressor of SEER1 vs 2. Seer to really just requires manufactures to use static pressure to simulate ductwork.

Good question, no easy way on a resi system, there is no oil sight glass like commercial. You can compare suction superheat to discharge superheat. If they get too far apart it's a good sign it's low. However the only way to really know is to drain and measure.

@@love2hvac Can you add a sight glass on Resi system ?

@@Dicofol1 for refrigerant yes, for oil no.

Original oil. Refrigerant oil does not wear out, it can get contaminated with improper vacuum or taking hoses in and off introducing moisture. It can get birt form overheating such as a leak, low suction pressure, high superheat, high suction gas temperature. The discharge line should never exceed 225. A car engine has massive heat, blow by from combustion, left. Over carbon from air and fuel. A Refrigeration compressor does not have any of that. Copeland still builds these scrolls the same way but they have added some protection such as a thermal operating disk, pressure relief valve, and anti reverse rotation valve. They are still made here in the USA in Sydney Ohio. They built and test them for 100% to be operating at least 20 years. Due to improper installation and maintenance is the reason for shorter life. There is nothing to wear out and fewer moving parts than a reciprocating compressor. The biggest issues today are improper installation, and leaking evaporator coils.

It won't flow through the compressor but it will greatly reduce the amount of oxygen and greatly reduce the oxidation effect.

Why it won’t? Because only 3psi? What about if pressurized the system? Does flow through compressor 🙏 please explain, u r very knowledgeable , I watch one of your video said it’s does flow through that’s why I am confusing thanks

Please explain thanks

@@8joh58 excuse the compressor will not allow anything to move through it without it operating. When a compressor shuts off, it holds high pressure on one side. The pressures won't equalize until it bleeds through the metering device. The compressor has check valves in place to prevent the high side from bleeding back and the low side cannot move the compressor and motor to get to the high side.

So which means nitrogen never flow through the compressor when brazing it in, even if u flow nitrogen pressurized the system with 300 psi-350psi? But when system empty out the refrigerant, there isn’t pressure inside the system, nitrogen still can’t flow through compressor? Please 🙏