i got a free compressor

Hans5849 · 07-08-2004, 08:08 PM

so my uncle had this compressor for his wine cellar and it wasn't doing the job it ran all day, so they replaced it with a bigger one. Well my aunt was going to throw the old one out and im like hmmmm maybe i have a use for this. I looked up the stats on it and heres what i got from Tecumseh the model is AEA4430YXA, it uses refigerant R134a, its rated at 1/4 HP, and 3000 btu/hr. It says its a HIGH TEMPERATURE COMPRESSORS - RATING POINT 45 DEG. EVAP. 130 DEG. COND.

so im woundering how this would work to cool my P4 2.4C @3.01 a X800XT which im going to be buying in september, and my northbridge on a 875P.

redleader · 07-08-2004, 10:10 PM

Thats a pretty good unit for a direct die phase change setup actually. Change the gas to R-22 or R-290 (propane) and suddenly you have a low temperature compressor

Not sure how well it would work for cooling multiple things though. Direct die is limited to one device per compressor more or less. You'd have to watercool those items and then use the compressor to chill the water. In this case bigger is better. A 1/4 HP is tons of power for a DD, but less for direct die. You could still get below zero pretty easy though, even as a chiller. Just not the maybe -30 or -40 range a direct die could do with some work and tweaking.

Hans5849 · 07-08-2004, 11:19 PM

to tell you the truth im not really interested in a sub freezing system because of the fact i don't want to have to deal with condensation because i live in IL where in the summer its humid as hell.

But, Direct Die does sound the way to go then. My uncle works for a propane company so maybe i can get discount high grade propane

and my dads buddy is in the heating and a/c buisness so he can help me do the tubing and everything. Are there any tutorials you guys recomend for this kind of cooling because i have never done any extreme cooling and this just fell into my lap so im running with it.

ok, i did some research on the temp i want to achieve. 21C at the min and 30C at the max. I figure the dew point never gets below 70F here so i picked that temp.

redleader · 07-09-2004, 01:17 PM

What are your room temps if you're interested in such elaborate cooling for such relatively high temps? Unless you have a 90F computer room, plain watercooling might be a better idea.

That said I think for such high temps chilled liquid cooling might be a better idea. Building a direct die system with common refrigerants in that range would be pretty hard i think, at least with your compressor. Heck a 1/12HP might be too big for what you want . . .

Even R134A is going to want to boil well below 0 at the pressures that compressor would likely provide. You could try and compensate by useing too short a cap tube to reduce pressure, but you might end up slogging your compressor and breaking it. Conversely with a chilled liquid setup temps are natuarly higher, and you could draw heat from more then just the CPU.

Any reason you're so set on that temp range? You're going to be insulateing the system regardless of temp range. Its not that hard to insulate it better to avoid condensation.

Hans5849 · 07-10-2004, 02:20 AM

well, i found out why the thing was bad its leaking and can't be fixed

07-08-2004, 08:08 PM	#1
Hans5849 Cooling Neophyte Join Date: Mar 2001 Location: IL. USA Posts: 17	i got a free compressor so my uncle had this compressor for his wine cellar and it wasn't doing the job it ran all day, so they replaced it with a bigger one. Well my aunt was going to throw the old one out and im like hmmmm maybe i have a use for this. I looked up the stats on it and heres what i got from Tecumseh the model is AEA4430YXA, it uses refigerant R134a, its rated at 1/4 HP, and 3000 btu/hr. It says its a HIGH TEMPERATURE COMPRESSORS - RATING POINT 45 DEG. EVAP. 130 DEG. COND. so im woundering how this would work to cool my P4 2.4C @3.01 a X800XT which im going to be buying in september, and my northbridge on a 875P. __________________ My Rig Life is like a penis most people don't know it But most people suck so they usually blow it

07-08-2004, 11:19 PM	#3
Hans5849 Cooling Neophyte Join Date: Mar 2001 Location: IL. USA Posts: 17	to tell you the truth im not really interested in a sub freezing system because of the fact i don't want to have to deal with condensation because i live in IL where in the summer its humid as hell. But, Direct Die does sound the way to go then. My uncle works for a propane company so maybe i can get discount high grade propane and my dads buddy is in the heating and a/c buisness so he can help me do the tubing and everything. Are there any tutorials you guys recomend for this kind of cooling because i have never done any extreme cooling and this just fell into my lap so im running with it. ok, i did some research on the temp i want to achieve. 21C at the min and 30C at the max. I figure the dew point never gets below 70F here so i picked that temp. __________________ My Rig Life is like a penis most people don't know it But most people suck so they usually blow it Last edited by Hans5849; 07-08-2004 at 11:32 PM.

07-10-2004, 02:20 AM	#5
Hans5849 Cooling Neophyte Join Date: Mar 2001 Location: IL. USA Posts: 17	well, i found out why the thing was bad its leaking and can't be fixed __________________ My Rig Life is like a penis most people don't know it But most people suck so they usually blow it

07-08-2004, 10:10 PM	#2
redleader Thermophile Join Date: Jun 2001 Location: The deserts of Tucson, Az Posts: 1,264	Thats a pretty good unit for a direct die phase change setup actually. Change the gas to R-22 or R-290 (propane) and suddenly you have a low temperature compressor Not sure how well it would work for cooling multiple things though. Direct die is limited to one device per compressor more or less. You'd have to watercool those items and then use the compressor to chill the water. In this case bigger is better. A 1/4 HP is tons of power for a DD, but less for direct die. You could still get below zero pretty easy though, even as a chiller. Just not the maybe -30 or -40 range a direct die could do with some work and tweaking.

07-09-2004, 01:17 PM	#4
redleader Thermophile Join Date: Jun 2001 Location: The deserts of Tucson, Az Posts: 1,264	What are your room temps if you're interested in such elaborate cooling for such relatively high temps? Unless you have a 90F computer room, plain watercooling might be a better idea. That said I think for such high temps chilled liquid cooling might be a better idea. Building a direct die system with common refrigerants in that range would be pretty hard i think, at least with your compressor. Heck a 1/12HP might be too big for what you want . . . Even R134A is going to want to boil well below 0 at the pressures that compressor would likely provide. You could try and compensate by useing too short a cap tube to reduce pressure, but you might end up slogging your compressor and breaking it. Conversely with a chilled liquid setup temps are natuarly higher, and you could draw heat from more then just the CPU. Any reason you're so set on that temp range? You're going to be insulateing the system regardless of temp range. Its not that hard to insulate it better to avoid condensation.

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