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air cond. rad?

post #1 of 4
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One of my friends killed their AC unit (the window mounted little thingers) and they had it opened up on their bench when I saw that it had a radiator lookin like thing at the front, can I use this as a rad for w/c I wanna get into it but I dont have much $$ to spend.
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post #2 of 4
It's probably aluminum and a condenser type.... neither are recommended for PC watercooling.
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post #3 of 4
Thread Starter 
bummer it looked like it had copper pipes tho
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post #4 of 4
There are 2 coils on an AC system, the evaporator & condenser. You absolutely can use the either coil as a radiator, the only difference between an AC coil and car radiator is that the AC coil is built to withstand higher pressures. BUT there are a couple of concerns before you do that;

- the system is pressurized, don't just cut into it until you absolutely determine that the system has lost charge or has been evacuated.

- You shouldn't just vent R134a to atmosphere, it does have some GWP

- It's OK to mix metals (aluminum, copper) in an AC system because R134a is a dielectric but water is not and a mixed metals system will set up a galvanic battery eventually eating a hole in the system.

- you should check for pressure drop across the evaporator with water, AC system disperse a high pressure mixture across the evaporator which has a higher viscosity than water.

I should work and probably has a lot higher performance potential than anything you can purchase on the PC side, you just have to be aware of the limits.
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