CPU Refrigeration unit

[_hl4e_halflife_]

heres a project I did a short time ago and i thought i would post it on here for ur enjoyment and get some feedback.

Someone threw this water cooler out on the last spring cleanup. I later found out why it was thrown out, the system had a leak and the the freon leaked out and burned the compressor very badly i had to replace the compressor and all the lines the only thing left from the orignal unit is the brown metal casing.

I put an Embraco 1/8hp compressor on it and charged it with RS-24. Other than that the pics pretty well tell the rest.

http://ww2.imagewiz.net/images/hvac/...cpu_cooler.JPG
http://ww2.imagewiz.net/images/hvac/...pu_cooler2.JPG
http://ww2.imagewiz.net/images/hvac/...pu_cooler1.JPG
http://ww2.imagewiz.net/images/hvac/...pu_cooler8.JPG
http://ww2.imagewiz.net/images/hvac/...pu_cooler7.JPG
http://ww2.imagewiz.net/images/hvac/...pu_cooler6.JPG

If anyone has any suggestions on improvments please post them.

[DeltaT]

Cool project. Looks like you may have the compressor terminals exposed looking at the first picture. That is pretty dangerous.

And the condensor looks like it may be against or near the back wall where air flow is restricted. Also, you chilled water storage is directly above the condensor which can cause the heat rejection from the condensor to heat the chilled water again. It's best to seperate the condensor away from the thing you are cooling.

Remember, safety first! What kind of controls and features have you installed to protect against problems?

Good work though.

[_hl4e_halflife_]

the condensor is near the wall but theres lots of open space back there. and as for condensor heat trust me its not heating the water/antifreeze misture and i know this because first of all the storage wood is about an inch thick and theres insolation all along the inside of the holding tank and if i touch the bottom of the tank its quite cold.

You asked-What kind of controls and features have you installed to protect against problems?

can you give me an idea of what kinds of problems you mean?

[DeltaT]

Mainly, do you still have the manufacturers amperage/thermal protection device in place and wired correctly?

Is there a temperature control to cycle the unit? And how bout a high pressure or low pressure control just to be safe. And what about the compressor terminals? Are they exposed?

[karsthuntr]

Originally posted by _hl4e_halflife_
This makes it easier to see.








If anyone has any suggestions on improvments please post them.

[Edited by karsthuntr on 11-27-2004 at 08:09 PM]

[_hl4e_halflife_]

The overload protector works i tested it my self. No there is not temp control it runs the whole time my PC is on. No there is no low/high pressure control because units this small don't have them. you only see low/high temp controls on larget units like heat pumps and AC's over 1 ton,etc. and yes the compressor terminals are exposed, i don't have anything to cover them at the moment and i don't plan on sticking my fingers in there while its on anytime soon lol.

[DeltaT]

Originally posted by _hl4e_halflife_
The overload protector works i tested it my self.

How did you do that?

No there is not temp control it runs the whole time my PC is on.

No there is no low/high pressure control because units this small don't have them. you only see low/high temp controls on larget units like heat pumps and AC's over 1 ton,etc.

Thanks, I guess I learn something everyday.

and yes the compressor terminals are exposed, i don't have anything to cover them at the moment and i don't plan on sticking my fingers in there while its on anytime soon lol.

So you are not worried about them blowing or that the thermal needs to feel the heat of the compressor body?

[Wild Leg]

I know even warthogs must be proud of their young, but the last time I saw something that ugly, I flushed it.

Is the boost in performance really worth the trouble/risk?

Clean it up, and post new pictures.

[_hl4e_halflife_]

its quite simple to test it just turn it on for a few sec than shutit off and than turn it on right away that will make the compressor draw lock rotor amps and trip the overload protector. ur on the wrong forums if you don't know these things.

and as for you bwal2 it was no trouble i enjoy building things like this and this isn't the first thing either take a look here:

http://hvac-talk.com/vbb/showthread.php?threadid=61184

[DeltaT]

Originally posted by _hl4e_halflife_
its quite simple to test it just turn it on for a few sec than shutit off ur on the wrong forums if you don't know these things.[/url]

Thanks for the advice. I have found another forum on fixing copy machines and maybe I can go over there and understand some of this technical stuff better.

[_hl4e_halflife_]

lmao @ delta T

[jgrade]

You need to cool the memory and VPU then take some readings.

[_hl4e_halflife_]

the vpu has enough cooling its got the all copper heatsink on both sides of it (Radeon 9800XT/256)

and take some reading of what u can see in the pic what the CPU is at.