Starting a noob DD

[Marvin]

Hi, It is my first direct die attempt. The parts :
Tecumseh 1/4 HP R12 compressor.
Chilly condenser with shroud
filter/dryer
3m of 0.031 cap tube
Flex hose
old AT case
Decided to use R22, is cheaper, and dont know if the compressor would handle R502....
switch conectors
Still not ready :
Evaporator
pics..

[Marvin]

Also have the insulation material, also i am planning a cap in cap evaporator with a Cathar cascade waterblock base.

[::EVOLUTiON::]

that compressor can handle r502, i try r502 with 1/6hp and it works :)
anyway, maybe you cant get "extreme" low temperatures with r22 but you can handle a big load

[SlackeR]

Don't use that base!
It would be such a shame. I don't think it is much better than anyy other bottom for an evap, and it is such a great waterblock.
you'd be better off selling it and getting stock copper to make your evap.

[Marvin]

thanks, but some comments..
My wb has the poly top cracked, so it would be hard to sell. Waht about the insulating material :
It is a 29 mm thickness armaflex. Shuld handle a low temp evaporator ?

[wdrzal]

That a great start !!! do you have a vacuum pump or acess to one? looks like the compressor joint was heated a little hot.You don't want to melt where the tube comes thru the shell.

[Marvin]

That a great start !!! do you have a vacuum pump or acess to one? looks like the compressor joint was heated a little hot.You don't want to melt where the tube comes thru the shell.
thanks, i dont have money to buy a vac pump, but i can rent a one for some days...also a manifold and some gas.
My brazilng skills are getting better, so i should have a better braze as a used almost i bottle of gas to improve my skills :)

[the_new_guy]

good luck
get plain copper, that would be real hard insulate

[C-BuZz]

looking great.

That a Chilly1 condenser?

C-BuZz

[Marvin]

yes, thats a six row chilly condenser. :)

[Marvin]

Here a small update :
I managed to put a 20 AMP switch (double), so that i can turn both the compressor and the fan :)
And the enclosure is a small AT case, but i will paint in black :
http://premium1.uploadit.org/Marvin//P1010021.JPG
http://premium1.uploadit.org/Marvin//P1010022.JPG
http://premium1.uploadit.org/Marvin//P1010023.JPG
http://premium1.uploadit.org/Marvin//P1010024.JPG
http://premium1.uploadit.org/Marvin//P1010025.JPG
I Will use a spare psu to turn on smoe fans and lights... :)

[the_new_guy]

do you need all that room?
i think you are better off building a small case!

[Marvin]

you are right. maybe is taller the a selfmade ,but it is what i can get $$. :)
thanks

[::EVOLUTiON::]

you can cut that case, but, try to mod it and it will look really nice

[l3ored]

i'm envious, i want to get into phase change. i assume you're going to have this sit next to your computer?

[Marvin]

yes, i will. :)
2 little update, one is that i found an old fride compressor, but i dont know if is it working properly :
It is a tecumseh R134A 1/4 HP
http://premium1.uploadit.org/Marvin//P1010026.JPG
http://premium1.uploadit.org/Marvin//P1010027.JPG
And the second one, i bought 2 PVC pipe reducers to use as an enclosure :
the bigger has 75x50 mm and the other has 60x40 mm.
http://premium1.uploadit.org/Marvin//P1010032.JPG

[the_new_guy]

are you planning to do with the second compressor?
dont tell me you are trying to make a cascade!

[Marvin]

no, i dont have knowledge to make a cascade yet...
both are 1/4 HP, but one uses r12 and the other r134a.

[the_new_guy]

make 2 ss, one for gpu and other for the cpu,
use the 134a one for the cpu and r12 one for the gpu,
use 134a if not 402a/507/404a/502 dont use r22

[Marvin]

Just finished the power switch part;
two poles will turn on the psu at the same moment teh compressor :
the green / black wires will go to compressor outlet AC:
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010053%7E0.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010050.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010051.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010052.JPG
i know i can make a better case, but for my money it would work :D

[jinu117]

Looking sharp will be cool to see finished product :)

[Icy]

dude i have soo much respect for you XD just started getting equipment for my build atm and its great to see someone basically doing what im going to be doing over the next month or 2 i will be watching this thread like a hawk. rofl btw i love that condenser going to have to pm chilly about one. i also love the idea of the old pc case i think us new guys need all the space we can get on our first trys heh. good luck and i hope you do really well!

[Marvin]

testing.
give me 11.91 v from the psu :banana:
also the other two wires will go to compressor, so both would turn at the same time :
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010018%7E1.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010019%7E0.JPG

[Firzen]

looking good

but the condensor is nearly an overkill .. ( not bad tough :p:

[Marvin]

thanks. Update. I have installed a baybus. It has 2 probes and a rheostat.
i will control the fan noise also i will have the compressor temperature.
Any sugestions for the second probe ?
http://www.forumpcs.com.br/galeria/albums/userpics/10827/normal_P1010023%7E0.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010022%7E1.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010024.JPG
it is a pity, but one led is dead:(

[Marvin]

Forgot the evaporator temp controller ::)
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010027.JPG

[Marvin]

now the parts are fixed and another switch is done (the controller one), and finally the exaust fan
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010032.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010036%7E0.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010027.JPG

[the_new_guy]

i like ur Fan grill!

[Marvin]

small update. teh case is almost done. Need some painting, leds, etc.
But closed nicely.
pics :
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010020%7E1.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010017%7E2.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010018%7E2.JPG

[Marvin]

Sorry a lot of questions, but my controller has a large probe, bigger than k type.what is the best place to put on the evaporator ?
http://www.forumpcs.com.br/galeria/albums/userpics/10827/normal_P1010022%7E2.JPG
thanks

[IYP]

im sure you can pick up a K type for cheap...look around ebay

[Marvin]

im sure you can pick up a K type for cheap...look around ebay
i can, but the k type is diferent from i have.

[Marvin]

does this rollerbag sensor would meansure correctly ?

[Comp-Freak]

Dunno. You could test it with icewater, it should display 0,0 degrees. But it could be that the sensor is less accurate at lower temps.

[the_new_guy]

80% crushed Ice and 20% water

[Marvin]

Just received my evaporator, from my big brother Roberto, justa have to braze the suction line( both side):) and make a leak test :
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010001%7E1.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010002.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010006%7E2.JPG

[BLHealthy4life]

I want one of those 6 row Chilly1 condensers!

His website shows out of stock at the moment....

Neat project.

[the_new_guy]

nice looking suction line and evap.

whats inside the evap?

[Bergo]

haha, I like it, kinda ghetto style with the old case and fan controller there, but I really like the condenser, for the life of me, I can't find a decent condenser o_O. chances are you can get a bead-type probe for your digital thermometer. I've got a bead type and "rod" K-type thermocouple for my thermometer, and they're both relatively accurate (shows 0 degrees in ice watter, and room temperature is the same on both, lol, all I have to go by)

[Marvin]

Small update :
Evaporator is brazed and leak tested. Use a T to pass the captube.
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010008%7E1.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010009%7E2.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010011.JPG

[the_new_guy]

how much captube do u have connected?

[Marvin]

4m of 0.031, but i can cut....

[johann]

I have had bog problems getting the 0.031 captube the rigth length.

If you use Gary Loyds rule for captube you end up with something like 5.7metres for 150watts.

With 0.031 the best results I get is with 2.8 - 3 metres

[Marvin]

I have had bog problems getting the 0.031 captube the rigth length.

If you use Gary Loyds rule for captube you end up with something like 5.7metres for 150watts.

With 0.031 the best results I get is with 2.8 - 3 metres
ok i will try that.

[404Power]

With 0.031 the best results I get is with 2.8 - 3 metres

Agree with that! :)
4m sounds a "little" (;)) bit too long for me!
2,8 - 3m, as johan already said, should do best! :)

[MaRtIe]

Verry nice littke unit! looks like i found an idea for my old small case...

Do you have any skill with fibre glass? if you do then you could re-model the front of that case


Lookin good man.

[Marvin]

After 10 hours of leak test with R22(the only i had)
:banana:
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010027%7E0.JPG

[GuGaCoSa]

Just put it under a tank with water and look for bubles,if you dont see anyone coming out you are 99% sure yo u dont have a leak
---EDIT---
Waiting for your topic on lep =]
Bye

[Marvin]

thanks Guga i will do it:)
I am waiting some parts....
Put under water and no leaks.
regards
Marvin

[MaRtIe]

Nice mervin, keep it up! interested in seing how this project goes.

[Marvin]

Thanks, tomorrow i will search the compressor to match the rest of the system. I am planning to get a embraco 1/5 HP EMI compressor.

[Marvin]

Some update :
The gas bottle, the enclsoure finished, just waiting the bolts :
http://img235.imageshack.us/img235/5473/p10100102go.jpg (http://imageshack.us)
http://img235.imageshack.us/img235/5473/p10100102go.th.jpg (http://img235.imageshack.us/my.php?image=p10100102go.jpg) http://img137.imageshack.us/img137/5426/p10100087rr.th.jpg (http://img137.imageshack.us/my.php?image=p10100087rr.jpg) http://img370.imageshack.us/img370/1986/p10100122nh.th.jpg (http://img370.imageshack.us/my.php?image=p10100122nh.jpg)

[Marvin]

find the screws, nuts and bolts...
and now is air tight....:D
http://img265.imageshack.us/img265/470/p10100133wd.th.jpg (http://img265.imageshack.us/my.php?image=p10100133wd.jpg) http://img265.imageshack.us/img265/1029/p10100143eu.th.jpg (http://img265.imageshack.us/my.php?image=p10100143eu.jpg)
[img=http://img265.imageshack.us/img265/470/p10100133wd.th.jpg] (http://img265.imageshack.us/my.php?image=p10100133wd.jpg) [img=http://img265.imageshack.us/img265/1029/p10100143eu.th.jpg] (http://img265.imageshack.us/my.php?image=p10100143eu.jpg)

[MaRtIe]

Love that mounting

[Marvin]

new pics :
(http://img242.imageshack.us/my.php?image=p10100250nj.jpg) [img=http://img214.imageshack.us/img214/3766/p10100241ho.th.jpg] (http://img214.imageshack.us/my.php?image=p10100241ho.jpg)
[IMG]http://img242.imageshack.us/img242/6268/p10100250nj.th.jpg (http://img242.imageshack.us/my.php?image=p10100250nj.jpg) http://img214.imageshack.us/img214/3766/p10100241ho.th.jpg (http://img214.imageshack.us/my.php?image=p10100241ho.jpg)

[Marvin]

Update : Insulated the flex line, placed the probe.
Maybe tomorrow i will search sleeving.
I only have this pipe insulation, Its huge (32mm wall):D
http://img123.imageshack.us/img123/6954/p10100301ra.th.jpg (http://img123.imageshack.us/my.php?image=p10100301ra.jpg)
http://img302.imageshack.us/img302/5612/p10100346wx.th.jpg (http://img302.imageshack.us/my.php?image=p10100346wx.jpg) http://img302.imageshack.us/img302/3118/p10100319mf.th.jpg (http://img302.imageshack.us/my.php?image=p10100319mf.jpg)

[MaRtIe]

damn thats thick.... but keep up teh good work! :toast:

[Icy]

man thats huge looks like a Elephants........ you can guess the rest rofl. nice work m8 looks really good! :D

Btw what size reducer did you use for the hold down?

[Marvin]

Its is really big, but cant hurt....
The pvc reducer has 75x50 mm .

[Marvin]

maybe it can be used in a cascade upgra:) :D de

[Icy]

nice, yeah all that insulation is great. wont need to ever change it when going to cascade thats for sure lol.

Thx for the info on the reducer

[Marvin]

the final picture :
http://img295.imageshack.us/img295/527/p10100354yo.th.jpg (http://img295.imageshack.us/my.php?image=p10100354yo.jpg)

[Marvin]

http://img306.imageshack.us/img306/7751/p10100382ye.th.jpg (http://img306.imageshack.us/my.php?image=p10100382ye.jpg) http://img306.imageshack.us/img306/71/p10100391rn.th.jpg (http://img306.imageshack.us/my.php?image=p10100391rn.jpg)
pics

[Marvin]

i am newbie in brazing skills. I almost wasted 2 cans of MAPP gas training. I dont know if a home made vaccum pump can make a deep vac.
I have just brazed the HX. It was almost 3 hours, unlike using a oxi/acet torch....
sorry my brazing skills, but It is ready for leak test :
http://www.teampuss.com/forums/files/liquid_suction_heat_exchanger.gif
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010045%7E1.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010002%7E0.JPG
Update. New toys arrived. One from Ron ( ^) ) and my 5 kg bottle of R402A.
http://img102.imageshack.us/img102/6632/p10100467rq.th.jpg (http://img102.imageshack.us/my.php?image=p10100467rq.jpg)

[4everCS]

Looks great, but yes you definetly need to invest in some oxi/acet torch kit!! It makes it so much easier to solder. What percent silver are you using??

[Marvin]

Finally done :
The case is an old UPC.... broken of course.
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010001%7E4.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010004%7E4.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010006%7E6.JPG
/www.forumpcs.com.br/galeria/albums/userpics/10827/P1010005%7E2.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010023%7E1.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010044%7E1.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010047.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010041%7E1.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010046%7E2.JPG

[Revv23]

hey, looks good, but im a bit confused.. whats the HX for?

[Marvin]

Just to make sure there were no liquid returning to compressor, also the ensure the liquid line.:)

[Revv23]

i cant really see to well so let me know if this is right: condenser->inner HX->cap tube ->evap-> suction ->outer hx ->compressor?

[Marvin]

i cant really see to well so let me know if this is right: condenser->inner HX->cap tube ->evap-> suction ->outer hx ->compressor?
that is it.:)

[Revv23]

cool im going to build one :)

[Marvin]

Now is finished.
The final temp under load is -57C.
I need to clean and play with settings.. *)
My winny does not have cold bug *)
http://www.forumpcs.com.br/galeria/albums/userpics/10827/overddc%F3pia.jpg
http://www.forumpcs.com.br/galeria/displayimage.php?pid=6336&fullsize=1
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010027%7E2.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010029%7E0.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010031%7E0.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/P1010033%7E0.JPG

[runmc]

great job Marvin. You have a very nice cooler.:cool:

[wdrzal]

good work, Be sure to build a shroud so condensor gets all its air from outside the case. You don't want the air to "short cycle" back around condensor . Also running 20"hg propably won't give any capacity and is hard on compressors.I sure this was just first test pics.

Looking good !!!

[Marvin]

good work, Be sure to build a shroud so condensor gets all its air from outside the case. You don't want the air to "short cycle" back around condensor . Also running 20"hg propably won't give any capacity and is hard on compressors.I sure this was just first test pics.

Looking good !!!
Thanks wdrzal, I have read all your posts abou safety, and that did help me a lot.
Yes, that is inicial numbers. I have to tune it. The system is undercharged.
My regards
Marvin

[DeMoN]

wow very impressive marvin just looking to do a first build might follow in ur footsteps

[Marvin]

thank you. Be sure you will reach.

[Marvin]

Little upate. I managed to fit the mobo on the case and finished the wiring/control unit :
http://www.forumpcs.com.br/galeria/albums/userpics/10827/ba5.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/ba8.JPG
http://www.forumpcs.com.br/galeria/albums/userpics/10827/vat2.JPG