Ham's single stage 2

H

Ham

New member
A few pics of the build im working on now. Its based around the one of the condensing units i got a looong time ago. It's got some pretty appalling pipework, which started out life as nice and tidy, then I realised it was about 5mm too tall to sit under the bench table properly so had to squish it...





About 90 psi worth of CO2 in there and no bubbles. Had some serious doubts about it but its looking good.



Knocking up an electrics box.

 
name='ace8uk' said:
What sort of temperatures are you expecting from it? Looks way to complicated for me :p
Click to expand...

Between -20/30 on the evap loaded. Last one was less powerful and managed -25 so this will hopfuly do better.

name='Olly_K' said:
looks sweet !

I would never build one, far too complicated, i got mine custom made for me :D
Click to expand...

That's cheating :D. Who built it for you?
 
Those are amazing temps, you obviously know your stuff about this sort of thing. I always wondered, do you have to keep putting insulation around the motherboard socket or do you just do it once and it lasts a long time?
 
name='ace8uk' said:
Those are amazing temps, you obviously know your stuff about this sort of thing. I always wondered, do you have to keep putting insulation around the motherboard socket or do you just do it once and it lasts a long time?
Click to expand...

best thing to do, (well, what I did) insulate the mobo with clear nail varnish around the socket front and back.

then lots of neoprene. Never leaked once and I've had a few cpus on it ! Its all about creating an air tight seal
 
Oh I see, it sounds far too complicated to me anyway. Maybe something to try once i've tried watercooling. I have no idea how much all that stuff costs anyway but i'm going to guess it's quite a lot.
 
Nice. I can only dream of building like him. Just working with what ever I can get me mits on atm :p
 
yeah it can get costly and dont forget it only cools the CPU. I crapped myself the 1st time and now its just like 2nd nature. It was the same with watercooling, 1st time was scary and now it doesnt bother me !
 
you can do, you don't have to. When I was benching I did, but when it was in my case i didnt have any directly on the NB/chipset
 
Nic one Ham. I just bought a brand new Danfoss SC12 conensing unit to build into a quick benhcing unit. You unit look like an american version, Copeland. Am i right? You got some R404a there or need some?
 
Nah this is a UK unit. L'unite CAE4440Y (part of Tecumseh iirc). Picked it up in a right ol' state from work a few months ago and have cleaned it up.

Digging out the old pic, it used to look like this:

dscf5641.jpg


She's gonna be charged with R290bbq, as i don't have a recovery machine and it doesn't cost me anything. R290 and 404 are rather similar, 404 is just easier to condense and boils ~4° lower
 
name='Ham' said:
Nah this is a UK unit. L'unite CAE4440Y (part of Tecumseh iirc). Picked it up in a right ol' state from work a few months ago and have cleaned it up.

Digging out the old pic, it used to look like this:



She's gonna be charged with R290bbq, as i don't have a recovery machine and it doesn't cost me anything. R290 and 404 are rather similar, 404 is just easier to condense and boils ~4° lower
Click to expand...

Man that looks harsh, she did clean up well. Hope you got all that rust off her!!

I'd strongly advise not to use R290. R404a and R290 are very very very differnt! I can send you some R404a if wanted
 
Right I have to agree here.. FAR too complicated for a simpleton like me :D

I would love to see what kind of temps you get out of this system, though personally I would never use one as it is too dangerous.. knowing me I would forget something and fry the lot:p
 
Quick update:



No Leak :)



Suction line flared in so that if I feel the need I can un-screw it and change the evap.



All brazed up and vacing.



Quick test to make sure everything fit right, and it did. :D

Currently on it's final evac and should be ready to charge & tune tomorrow.
 
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