Finally built one

I finally got all my parts and started assembling them this weekend. This is my first 'real' unit, I built one before, but that was more like an experimental thing, i used almost only used parts (used captube, used pipes, even used filter :p:) and it had 1/4" pipe for suction.. The evap was bad too.

But here it is :)

-Used Mitsubishu R22 rotary that came with a 25MF run cap, i really got no idea on how powerfull it is, but it weighs 16kg, and is about 24cm high

-1/4" discharge with some coils as a vibration silencer.

-Used condenser. Don't know the Kw rating, but it's about 19x25cm and three rows.

-3.2m .031" captube. I might want to shorten it later.

-Cap-in-cap evap with 3mm base.

-60cm 1/2" braided stainless steel hose for suction. Then 1/2" copper tubing. I guess 3/8" would work as good, reason i use 1/2" copper and not 3/8" is because BES sent me wrong size (LOL), and of course i don't ship it back to the UK :rolleyes:.

The unit is charged with R290 at the moment, but i will probably regas it to either a R290+R410A mix, or R404A. Depends on what i can get.

Some pics :)

Parts:
http://home.no/aasmaukr/fase/1/1.JPG

Compressor:
http://home.no/aasmaukr/fase/1/2.JPG

Pics of the unit:
http://home.no/aasmaukr/fase/1/3.JPG

http://home.no/aasmaukr/fase/1/4.JPG

http://home.no/aasmaukr/fase/1/5.JPG

More pics :)

http://home.no/aasmaukr/fase/1/6.JPG

http://home.no/aasmaukr/fase/1/7.JPG

http://home.no/aasmaukr/fase/1/8.JPG

http://home.no/aasmaukr/fase/1/9.JPG

A lil bit short sleeving :p:
Temps later, i haven't tested it on a load yet, but i've got idle temps at around -60°C. Don't think the idle temp will be that low when it's tuned for load though.

Nice :) Much better than my first - I just stuck an evap on refrigeration condenser - 1/2 hours work ;)


Your flex pipe there - it has flare connectors - is it steel with the steel braid over it? What is it's construction?


Temps?

:banana::banana::banana::banana:ing nice!
and just 15 years!

I think you should cut some cap tube :)

Try with ~2,8m, should be much better than 3,2m with nice load :)

But...I really like your SS, it`s very nice and clean, especially for first build I think that you have done awesome work.

Keep on going dude :)

great job, especially coz its your first unit. clean built. i cannot see the brazing joints on the pics, but all in all nice build.

0bar suction pressure would be about -46°C with propane.

try charging it up to -0.1 to +0.3 should handle a quite nice load.
as said before, shorten the captube.

Thanks everybody :) The Flex tube has got 1/2" BSP connectors, so i use 1/2" BSP to 3/8" flare "thing" in one end (the female one) and in the other end (male) i use 1/2" BSP -> 1/4" BSP, then 1/4" BSP to 3/8" flare. Kinda complicated :p: But the hose is very cheap at bes.ltd.uk and it takes max 70 bar. It's just a normal braided ss hose.

Edit: I think I'm going to cut the captube a little, but I'm going to try the unit on my 6800LE first and try to hunt down that WR I've tried to beat several times before, heheh yep, I'll fix some pics of brazing tomorrow. It's too dark outside now.

That is amazing for a first build.

well done dude great work

where did you get the gold cover for the suction return

baz

I got the braid here Also check this one: Link I bought both a yellow and a blue one. I think the blue is also in one of my pics.

Realy nice build there :)

Waiting for some load temps !!

what thickness have insulation on flex line ?
in future you will charge this system with a better gas?

btw plexi isn't good for holddown, it's too flexible ;)

Quote:

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Originally Posted by Duniek

what thickness have insulation on flex line ?
in future you will charge this system with a better gas?

btw plexi isn't good for holddown, it's too flexible

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Really? I thought it would work fine, it's 6mm thick plexi and isn't really...flexible. But i might cange to something else. What do you recommend? PVC?

I don't know exactly what thickness, but i think first some 3mm insulation tape, then 13mm armaflex and a layer tape on the outside of that.

Yep, i think i'll recharge it with another gas.

PCV 10-15mm is very good material
sometime I saw cracked a plexi holddown (thickness 10 or 15mm)

Simply well done!

Very nicely done!

Me is jelous, love how you pre-planned everything (slap myself in the head..)

very nice build...;)

Nice system. Love the sleeve....

Quote:

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Originally Posted by Thrilla

Me is jelous, love how you pre-planned everything (slap myself in the head..)

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Q-F-T yea, planning is essential

Thanks a lot, everybody :)

I think I'm going to have to wait until the weekend to load test it. But I got some pics for you.


Brazing joints:

http://home.no/aasmaukr/fase/2/1.JPG

http://home.no/aasmaukr/fase/2/2.JPG

http://home.no/aasmaukr/fase/2/3.JPG

http://home.no/aasmaukr/fase/2/4.JPG

Idle temp..

http://home.no/aasmaukr/fase/2/5.JPG

what type of brazing rods did you use?

I used "Phosbond O brazing rods" (part nr 15994) from http://www.bes.ltd.uk/
You can also find them under Ref and aircon -> Manifolds and Accessories (at the bottom of the page).

What HP do you get with 3m20 capilary tube? :eek:

Where'd you find that condenser, I really need to get some like that :(

do you have a case im mind ? Or just caseless ?
congratulations.

Quote:

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Originally Posted by n00b 0f l337

Where'd you find that condenser, I really need to get some like that :(

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cold_ice can get condenser used here thats where i get all mine

If you shortin the captube, wrap the majority of the captube around the suction line near the evaporator. This will help with subcooling.

Don't use r410 in a unit that is not designed for it.

Very nice cooler - congrats :clap:

Thanks guys :)

@ Clemmaster: I'm sorry but i don't understand exactly what you mean. Could you try to explain?

@ Marvin: I planned to make a yellow and black case for it, and I think i will sometime. But it will be tuned nice before i make the case.

@ runmc: Yep. I'm thinking of doing that. Or i will add a SLHX. Not sure yet. About R410A, i know it's high pressure, so i was thinking to blend with R290 or another refrigerant.

Btw, i got my new paintball CO2 bottle with regulator filled today when i was playing paintball. And the connection between bottle and regulator seems to be leak-free so I'll make a cascade when i get a better high stage refrigerant and a high pressure relief valve :)

Hello :) Did some testing with my 6800LE today. This rotary is very noisy and hot. It runs at 90-95°C. And i wear hearing protection when I'm sitting close to it for some time :D

Ready to go:

http://home.no/aasmaukr/fase/3/1.JPG

http://home.no/aasmaukr/fase/3/2.JPG

Windows idle:

http://home.no/aasmaukr/fase/3/3.JPG

http://home.no/aasmaukr/fase/3/4.JPG

The unit:

http://home.no/aasmaukr/fase/3/5.JPG

The 6800LE drivers doesn't show lower temps that 10°C :(

I did some 3DMark05 becnhing, but didn'treally get any good results.. I ran a nice GPU freq though :), 565/790MHz, very crappy mem frequency. At least I broke 6000 3DMarks. ORB link

Load temp:

http://home.no/aasmaukr/fase/3/6.JPG

Pressures:

http://home.no/aasmaukr/fase/3/7.JPG

:)

http://home.no/aasmaukr/fase/3/8.JPG

well done good temp

Yeah, I like it :toast:

nice vaccum at load.....:)

hehe

http://www.xtremesystems.org/forums/...3&d=1157917192

I see my avatar there ! :D

One nice unit there Åsmund :clap:

Thanks :)

Luke: Haha, yep :p: Very nice cat btw..

But, does anybody have any idea of the size of this rotary? It's got a small sticker, i can get a pic of it if you'd like.

Wow, great temps. How much money has been spend on it?

Quote:

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Originally Posted by wangerin

Wow, great temps. How much money has been spend on it?

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Thanks, just the parts for this unit i guess would be something like this:

Compressor: Free
Pipes: $5
Condenser w/ fan: Free
Schraders, reducers, BSP to flare adapters etc.: $10
Filter: Don't remember exactly, think it's about $3
Captube: $8
Evap (caps and base): Don't really know, but i guess it's like $10 or something.
Flex steel suction: $18
Insulation: $12
Suction braid: $3
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Total: $69
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But of course i paid alot more than that to get into phase change.. :p: All the tools, brazing rods, etc..

And, i found a very small leak today, I realized i was loosing a little pressure and i was pretty sure the leak was in the low-stage as i had checked all high-side joints with soap+water and 350 PSI. So i cut off the evap and steel hose and took off some insulation tape (i was stupid enough to insulate the whole suction with tape before putting pipe insulation on the outside..). And i found the leak. It was where i thought it was, in the connection between steel hose and flare nut. It wasn't tightened enough. But I think I fixed it and it's leak-free now.

Very nice first build!!! ;)

Im Gobsmacked, :toast:

Im taking my time reading threads and gaining knowledge before i attempted anythink as we all do. Hopefull soon i can build a first unit as great as yours.

Outstanding dude. Should be proud ;)

wow, that build looks very clean. i like it!
why not use this (or make another one) for the cpu?

Thank you :D

@ m0da: It will be used for CPU too, i just wanted to do some GPU tests with a little bit longer cap tube first. I'm going to shorten captube and tune for CPU load soon i think. :)

All the pics disappeared so i uploaded them at my site and edited the posts. I've shortened the captube to about 2,9-3m.. The insulation is a little messed up right now but I'll fix it.
I just got a E6400 + 7950GT rig so I'll mount it on the GT when i find some vmods for it.

Damnit I whish people stopped benching those le's, he pwning my old scores. Still got the card, wonder what that might do under phase ;)

For a first build, at your age, I'm so awed :D

Great work (Amazing for first)! :toast:

Haha, thanks, I destroyed a LE again :p: I ran it at dry ice and the card sucked, it clocked kinda bad.. Only 500/850 vith vmods at GPU and mem. And when i was mounting my 24/7 cooler again, i ripped off a component on the card. But I think I'll be able to solder on one from my old card.

I was in a overclocking competition here in Norway the last week. I didn't do very well in the competition, i was on 6th place, but I got a C2D E6400, a MSI 975X Plat. Powerup Ed., A 2x1GB 6400 OCZ Gold Kit, a 7950GT and a Mist 500W PSU :D
Some other norwegian overclockers made a couple of webshops and OCZ give it to me as I don't have much money for hardware and I built this cooler, etc.. Hehe

I just charged with R290 again, and now it idles at about -65°C :). It's weird i get a lower idle temp after cutting off some captube.. But it could be because i got a better evac now.

You deserved the HW man.

Awesome job with the phase too.

Isnt the vmods on the 7950 GT the same as for 7900 GT?

Hehe, thanks :D.

I didn't know, I'll check it out. If it is, i will probably mount the cooler on my card one of the first days.

Edit: You're right :) Same mods for 7900GT and 7950GT. Did a quick pencil vGPU mod yesterday. But I'll sell the MSI 975X and buy a P5B vanilla :cool: So i won't mount the cooler until i get that new board as i don't want to insulate the MSI board before selling it.

Great job with your first SS!

Couple of questions though:p: ;

Did you purge that cap-in-cap evaporator?
And where can you get condensers like that one you have?

Brett

Yep, i purged the evap. I got the condenser from a trashed cooler :).

Edit: I just ordered resistors for a load tester with about 175W heat output (3x100ohm 50W resistors). I also insluated my cooler and put on the sleeve again.

Did some progress, but I'm still not finished tuning it. I think I'll cut some more cap tube :D I've cut three times now, and i don't know exactly what the length is now. But it's between 2,6 and 2,8 metres.

My load tester (about 175W):

http://home.no/aasmaukr/fase/4/1.JPG

http://home.no/aasmaukr/fase/4/2.JPG

http://home.no/aasmaukr/fase/4/3.JPG

http://home.no/aasmaukr/fase/4/4.JPG


Idle temp:

http://home.no/aasmaukr/fase/4/5.JPG

Loaded temp (178W):

http://home.no/aasmaukr/fase/4/6.JPG

The temp went down to -45*C but i don't have a pic of that.

I'll cut 15-20 cm more captube and see if I get a better loaded temp.

I'm stil running with R290 but I hope I can get some R22 soon and maybe a little bit R410A to blend with the R22.

:)

See Kids thats what ya get for practicing! a Beauty full clean pro looking unit first shot!


Great build mate, You better be glowing with pride for that sweet unit!

Be careful to reposition the brown wire,if left like that and that is not high heat insulation ,it will melt thru and contact the middle resistor,loosing all or part of the resistance and heat from the 3rd resistor. once insulated this would not be easily seen . you would be able to tell by ohms values,so when complete mark down the original ohms values of all 3 in series.

Quote:

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Originally Posted by Xeon th MG Pony

See Kids thats what ya get for practicing! a Beauty full clean pro looking unit first shot!


Great build mate, You better be glowing with pride for that sweet unit!

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Thanks! :D

Quote:

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Originally Posted by wrdzal

Be careful to reposition the brown wire,if left like that and that is not high heat insulation ,it will melt thru and contact the middle resistor,loosing all or part of the resistance and heat from the 3rd resistor. once insulated this would not be easily seen . you would be able to tell by ohms values,so when complete mark down the original ohms values of all 3 in series.

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Yea, I didn't think about that. But I did put some glue on the resistor solderings so if the insulation melts it won't connect to the middle resistor, just to make sure it won't short if there's condensation all over the resistors. Maybe I will put some heat shrink tubing over the brown wire, it sould take over 150*C then.

And I cut off 15cm more captube but i ran out of propane, I had just enough to charge the cooler but I won't release any refrigerant to get colder temp before I've had my bottle refilled. It holds 178W @ -40 right now.

Wtf . How i missed this build :D Very Nice [and clean ] job Sir. :toast:

Hehe, thanks :D I'll get some more R290 tomorrow and do some load tests in the weekend. Things is going very slow as I don't have a working place at home, but only at dad's place so I don't work much on the unit when I'm at home. But that's going to change now as I'm building a workshop at home now :woot:
I'm going to start making a case soon.

Quote:

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Originally Posted by aasmaukr

I'm going to start making a case soon.

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noooooo....:stick: :slapass: