Danfoss SC18CLs GPU SLI/CF Cascade - worklog

Hello

It's mine first SLI cascade, some mounths ago I have tried to make dual-evap one, but it didn't work fine becasue of too small condensor :(. This one has quite big condensor :D - dual fan 200mm each 230V, 3.6 kW condensor :D. Cascade will be using silent Danfoss SC18CL compressors and of course oilseparator with float. Adds like Dixell controller and 4 REFCO gauges kit started to be "normal" in mine cascades - everybody want that ;). Cascade will be using R507 on 1st stage and R23 on 2nd stage.

Specs :

compressors: 2 x Danfoss SC18CL
evaps and suction flex hoses: two GPU evaps : steeper design, 24mm tall, 42 mm diam., plus 120 cm long suction lines DN10 braided
XV: probably Danfoss TS2 on 1st stage/ captubes 0.9 mm on 2nd stage
HX: Plate HX, 12 plates
condenser: 3.6 kW condensor + 2x 200mm, 230V fans
refrigerants : R507/R23
oilseparator : Shine Year with automatic oil back
safety : Danfoss KP5 cutoff
case : Laser cutted and powder coated case (white) plus black details, wheels
others: Dixell XR20CX to control 2nd stage start, 4* REFCO panel gauges, expansion tank 1.1l Torecilla, two white CCFLs inside, 350 mm 230V blower fan on back wall.


It's worklog, now I've got bit longer break in work over it, becasue of problems with getting case for it, one workshop make me that since 5 weeks so change it finally for another, becasue I don't like if somebody threats me in that way :mad:. I hope case will finally arrive to me next week .

Case will be BIG one, with 350 mm blower fan :up: :yepp:. Case will be white with black details :D.


http://www.members.lycos.co.uk/piotres2/sc18sli/1.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/2.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/3.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/4.jpg

Two GPU evaps after final cleaning .

http://www.members.lycos.co.uk/piotres2/sc18sli/5.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/6.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/7.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/8.jpg

Big condensor and rest of parts .


http://www.members.lycos.co.uk/piotres2/sc18sli/9.jpg

That's 350 mm fan :D.

http://www.members.lycos.co.uk/piotres2/sc18sli/10.jpg

Condensor which I've parted for desuperheater for 2nd stage and condensor for 1st stage .

http://www.members.lycos.co.uk/piotres2/sc18sli/11.jpg

REFCO Gauges and Danfoss KP5 cut-off.

http://www.members.lycos.co.uk/piotres2/sc18sli/12.jpg

I've new googles , special designed for acet-oxy brazing - Nemesis IRUV 5 :D.

http://www.members.lycos.co.uk/piotres2/sc18sli/13.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/14.jpg

Suction lines .

http://www.members.lycos.co.uk/piotres2/sc18sli/15.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/16.jpg

1.1 l Torecilla receiver modded to expansion tank.

More pics during few next weeks ... :yepp:

Thanks
Best Regards
Peter

I am jealous over that condenser. I want something like that so badly :yepp: Looks like it'll be a slick casacde, will be interested in your cap-tube tuning.

looking good piotres, but what 'bout those googles?

Amazing work!! :up:

nice outfit for work lol

Top part of the condenser is a desuperheater for second stage?

Nice shades. :cool:

Really nice parts m8, I like the gauges and the huge condensor. Are you using propane as inert gas?

Very Nice work as allways piotres.

Great Work peter Nice n Clean

I'm always so jealous of the condensers, the damn condensers :(

Awesome job so far.

How did you unbraze them U bends in the condenser so neatly without marking the shroud ? :o

Hi,

I've added description to 1st post. :)

Quote:

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Originally Posted by Duniek

nice outfit for work lol

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You want to say that mine jacket which I payed 15 eur looks funny ? :slapass: ;).

Quote:

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Originally Posted by tim-

looking good piotres, but what 'bout those googles?

---

They're Nemesis IRUV5 , specially designed glasses for brazing jobs. That flux from silver rods makes very bright light (You know that ;) ), so it's nice to have secure eyewear .

Quote:

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Originally Posted by Polizei

Top part of the condenser is a desuperheater for second stage?

Nice shades. :cool:

---

Yes, it's desuperheater .

Thanks :yepp:.

Quote:

---

Originally Posted by DagoDuck

Really nice parts m8, I like the gauges and the huge condensor. Are you using propane as inert gas?

---

Yes, propane :yepp:.

Quote:

---

Originally Posted by yngndrw

Awesome job so far.

How did you unbraze them U bends in the condenser so neatly without marking the shroud ? :o

---

You know ...some skills is needed hehe ;). Nah, just a joke ;), just use wet cloth to cool shroud properly, and don't heat pipes too much .

Thanks for all nice words :yepp:.

With Kindest Regards,
Peter

Well done Peter! You're work is always top notch! I can't wait to get my suction lines in and see this craftsmanship first hand. Keep up the diligence and I’ll be studying this thread carefully. Cheers!

Looks good Peter. :)

Quote:

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Originally Posted by piotres

You want to say that mine jacket which I payed 15 eur looks funny ? :slapass: ;).

---

I think he means that your jacket is synthetic and it can easily ignite. its not so safe.

PS Good and clear work! :up:
Are the evaps nickelized?

Quote:

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Originally Posted by wra1th

Are the evaps nickelized?

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No, naked cooper :).

piotres, can you tell me therough dimensions of the condensor?
also fine would be the over-all tubing length of the condensor.

i have a very similar one and i dont know the condensing power of it, so i would like to compare.

your are doing a good work, i am looking forward to the piping job :)

Quote:

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Originally Posted by godmod

piotres, can you tell me therough dimensions of the condensor?
also fine would be the over-all tubing length of the condensor.

i have a very similar one and i dont know the condensing power of it, so i would like to compare.

your are doing a good work, i am looking forward to the piping job :)

---

2x200 mm , 3.6 KW
Tall :28 cm, long: 62 cm, thick: 20 cm .

Tubes are 12 mm OD.

Hello

It's near sure that cases will be ready this week :yepp:.

Today I want to show CCFLs :p: :

http://www.members.lycos.co.uk/piotres2/sc18sli/17.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/18.jpg

:D

Thanks
Best Regards
Peter

Very nice.

WOW CCFLs.... :P

http://www.members.lycos.co.uk/piotr...olid works.jpg

Next really nice unit from Piotres here :up:. Great job as always. What temp's are you expecting?

Quote:

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Originally Posted by sobih25

Next really nice unit from Piotres here :up:. Great job as always. What temp's are you expecting?

---

Hello Pawel :)

Not "too" cold becasue of R23 in 2nd stage, but sth like -60-70*C on each head loaded with over 200W is mine goal :).

it sounds quite good imo :rolleyes:.

cant wait to see this finished ,heh and more importantly how it will perform temp wise.

btw the cascade you made for me is still rocking, im having alot of fun with it :up:

Hello :)

I just want to say that aluminium custom case arrive to me today :). Finally :). Now it's going to powder coating workshop :D.

Thanks
Best Regards
Peter

Hello :)

http://www.members.lycos.co.uk/piotres2/sc18sli/19.jpg

I've ordered two, so who wants next cascade ;) ?

http://www.members.lycos.co.uk/piotres2/sc18sli/20.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/21.jpg

Packing was really good :yepp:.

http://www.members.lycos.co.uk/piotres2/sc18sli/22.jpg

Now time to some white powder coating ... :D.

thanks
Best Regards
Peter

Hello

Gah, last time mine main work in learning for exams on politechnics :( . That's why updates are such rare . And mine powder coating workshop has problems with buying white paint .

After one week work will go ahead for sure (after 30.06) :) .

Today I want to show Suction lines :D :

http://www.members.lycos.co.uk/piotres2/sc18sli/23.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/24.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/25.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/26.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/27.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/28.jpg

Thanks
Best Regards
Peter

hey!

any temps yet? id really would like to know how those compressors treat you.

regards

edit- im a failure. sorry... just read the last post... :(

Hello

@teyber : for temperatures we must wait at least 7 days :).

Painted case is in mine workshop since 2 days, and I've done some intial work over it till that time ;). Except mounting wheels, I've glueted side plexi panels .

http://www.members.lycos.co.uk/piotres2/sc18sli/29.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/30.jpg

All powder coated parts :yepp:.

http://www.members.lycos.co.uk/piotres2/sc18sli/31.jpg

Best Regards
Peter

Amazing work:up: Wished you lived closer :yepp:

....superb....nothing short of art pure art..

not got my Single phase up yet...and now i want one of these...!

Thanks guys :)

Currently I'm working on case's sound insulation, today I hope to mount some parts to baseplate :D.

sorry empty post

Hi

Progress : :)

http://www.members.lycos.co.uk/piotres2/sc18sli/32.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/33.jpg

Some sound insulation :).

http://www.members.lycos.co.uk/piotres2/sc18sli/34.jpg

Planning ...

http://www.members.lycos.co.uk/piotres2/sc18sli/35.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/36.jpg

Finally I've decided to use ALCO TI-HW expansion valve (will be working with R507) .

http://www.members.lycos.co.uk/piotres2/sc18sli/37.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/38.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/39.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/40.jpg

and custom made black bolts made on special request :yepp: :D :

http://www.members.lycos.co.uk/piotres2/sc18sli/41.jpg


Best Regards
Peter

Nice Work Piotres !
Very nice clean work :)

Move to the US please :rofl:

Very nice work my dear sir.

Hello

THANKS :D

Today I've brazed whole cascade ;) :

http://www.members.lycos.co.uk/piotres2/sc18sli/42.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/43.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/44.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/45.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/46.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/47.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/48.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/49.jpg


...and I've start evacuation of 1st stage :). Tomorrow I hope to see first frost on pipes ;).

Best Regards
Peter

Your piping skill is improving massively :)

very nice peter :)

how long do you make the 0,9mm cap tube's on second stage?
in my rotary gpu cascade i have a lot of problems with the load. i think the cap tube is not perfect. must change that.

no leak testing before evacuation? ;)

Quote:

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Originally Posted by n00b 0f l337

Your piping skill is improving massively :)

---

Heh I've just bought pipe bender ... ;)

About captube - I don't remember :mad: but I think 340-360 cm (I'm sure of that) .

No leak tests after charging, suction lines were tested in water.

Hi again :)

@toaster, one more : "not perfect" lenght of captube doesn't change pressures MUCH , for instance 15 cm too long captube doesn't rise You discharge for 3-5 bara more ...so that is not a problem here in You cascade .

Next portion of photos, cascade was filled with R507 and R23 today (pure R23 on 2nd) ... :D

http://www.members.lycos.co.uk/piotres2/sc18sli/50.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/51.jpg

first frost on here pipes :D and -48C on 1st stage for "welcome" ..with insulation on HX made of old cloth LOL :ROTF:.

http://www.members.lycos.co.uk/piotres2/sc18sli/52.jpg

more frost ...

http://www.members.lycos.co.uk/piotres2/sc18sli/53.jpg

After a little tunning for load, with no load both heads was around -75C :) .

http://www.members.lycos.co.uk/piotres2/sc18sli/54.jpg

And that's with 485W total on heads (260W plus 225W dummyloads) ..a lot of heat put on danfoss hermetic 5/8 HP ;) . I hope to gain few *C after insulation . I want to beat -60C with this load, and test it also with little smaller load (like will be used in "normal" benching becasue 260W dummy is .... killler load , I'm sure any GPU now doesn't produce so much heat :rolleyes:) ... :cool:.

http://www.members.lycos.co.uk/piotres2/sc18sli/55.jpg

Temperature of 1st stage idle and pressures in 2nd stage idle.

http://www.members.lycos.co.uk/piotres2/sc18sli/56.jpg

Pressures 1st stage idle .

http://www.members.lycos.co.uk/piotres2/sc18sli/57.jpg

Thick froooosssttttt :cool:.

1st stage compressor "holds" me a bit, with rotary there I can gain some *C, now with 485W put on 2nd stage, first stage is only sth like -22*C . For R23 that's still fine, but could be better ;).

Thanks
Best Regards
Peter

wow very good

Hello

Yesterday's work :) :

http://www.members.lycos.co.uk/piotres2/sc18sli/58.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/59.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/60.jpg

I apply some paint on shiny pipes ..I'm BASTARD hehe :D. Black paint with "plastic" effect ...style is style, cascade is white with black details :).

http://www.members.lycos.co.uk/piotres2/sc18sli/61.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/62.jpg

19 mm thick insulation on HX , rest has 18mm thick of armaflex :).

http://www.members.lycos.co.uk/piotres2/sc18sli/63.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/64.jpg

Cascade is going to be finished soon ...whose we'll be next ? :D

Thanks
Best Regards
Peter

Wow, that looks incredible.

nice unit piotres :)

Hello :)

http://www.members.lycos.co.uk/piotres2/sc18sli/65.jpg

hehe NO NO I'm not Yato workman , this is only picture done in that way...these tools are cheap but quite good ;).

Electrics started :)...

http://www.members.lycos.co.uk/piotres2/sc18sli/66.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/67.jpg

Mine helper ...

http://www.members.lycos.co.uk/piotres2/sc18sli/68.jpg

Who helps me wraping cables from insulation with some sharp tools :D ...

http://www.members.lycos.co.uk/piotres2/sc18sli/69.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/70.jpg

White light mounted :cool:.

http://www.members.lycos.co.uk/piotres2/sc18sli/71.jpg

I've even put case ...for very short time :shakes:. I've noticed that fan is making horrible vibrations, I must buy new motor , in current one axis is crooked :(.

http://www.members.lycos.co.uk/piotres2/sc18sli/72.jpg

Insulation helps :D ...with same charge as I've done -75C without insulation. No load .

http://www.members.lycos.co.uk/piotres2/sc18sli/73.jpg

Some snow done during hot summer ;).

Thanks
Best Regards
Peter

wow piotres,

its been very long since i've visit XS but i am very proud to see all these new projects.
You've been making phase chance for a while and your work is very nice !!!!

good luck !!!!!!

Hi Jort, I haven't seen You here for a LONG time :welcome:. Thanks :up:

CUTE kitten! siamese or ragdoll? how many weeks?

o and that cascade looks kinda cool also :P

Hello

Kitten doesn't have any race, but it's VERY simillar to siamse ..has fur like siamse and has blue eyes :), I think he's father is siamse. I don't know exactly how old is him, it's present from mine GF to mine mother. We have is since 1 mouth :).

Kitten is kitten, but cascade is ready :cool: :

http://www.members.lycos.co.uk/piotres2/sc18sli/74.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/75.jpg

New fan painted white ...that one rotare properly :D.

http://www.members.lycos.co.uk/piotres2/sc18sli/76.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/77.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/78.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/79.jpg

1105W when cascade is working in idle :).

http://www.members.lycos.co.uk/piotres2/sc18sli/80.jpg

1st stage temperature when it's loaded by 2nd stage cooling down 485 W ;)..not too cold but enought for R23 ;).

http://www.members.lycos.co.uk/piotres2/sc18sli/81.jpg

on 260 plus 225W both evaps have around -63C :)

http://www.members.lycos.co.uk/piotres2/sc18sli/82.jpg

1st stage loaded ..even 3.6kw condensor has some work to do :p:.

http://www.members.lycos.co.uk/piotres2/sc18sli/83.jpg

2nd stage pressures loaded, dixell shows 1st stage temperature ...

http://www.members.lycos.co.uk/piotres2/sc18sli/84.jpg

Idle :).

http://www.members.lycos.co.uk/piotres2/sc18sli/85.jpg

both evaps under 115w (each one) ...

http://www.members.lycos.co.uk/piotres2/sc18sli/86.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/87.jpg

In the dark :cool:...

http://www.members.lycos.co.uk/piotres2/sc18sli/88.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/89.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/90.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/91.jpg

I almost forgot (again :down:) ....

http://www.members.lycos.co.uk/piotres2/sc18sli/92.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/93.jpg

Another armaflex sheets customer order in bigger qualities :p:.

http://www.members.lycos.co.uk/piotres2/sc18sli/94.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/95.jpg

And 2 Youtube movies :) :

http://pl.youtube.com/watch?v=rbxRM76Irzw

http://pl.youtube.com/watch?v=E0DDLiYrz_E


Unit is finished, only packing left :).

Thanks
Best Regards
Peter

Hello

Packing : :yepp:

http://www.members.lycos.co.uk/piotres2/sc18sli/96.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/97.jpg

Yes, owner of this unit order "a little" more insulation LOL :D.

http://www.members.lycos.co.uk/piotres2/sc18sli/98.jpg

18 mm thick "OSB" board :)

http://www.members.lycos.co.uk/piotres2/sc18sli/99.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/100.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/101.jpg

http://www.members.lycos.co.uk/piotres2/sc18sli/102.jpg

Pack will be having handles soon :).

Thanks
Best Regards
Peter

great cascade Peter! Nice and clean. I like performance and case with lighting :clap:

heheh same sort of packing as i had when you shipped my cascade :D... lol i still rememember how long it took me to get it fully open :rofl:

Quote:

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Originally Posted by Solarfall

heheh same sort of packing as i had when you shipped my cascade :D... lol i still rememember how long it took me to get it fully open :rofl:

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So true, but it makes it all worth it when you get the unit in the mail and she's working perfectly right out of the box. :up: I've got some fine "artwork" from Peter coming in the mail sometime soon. I'll get some photos up as soon as it arrives! :D

Hello

Packing is completed since some days, courier should take pack tomorrow :) :


http://www.members.lycos.co.uk/piotres2/sc18sli/103.jpg

Fin for this unit :cool:.

thanks
best regards
Peter

That case is beautiful. I'd love a case like that for a cascade, too bad shipping it to the US would cost an arm, leg, and left kidney :(

Quote:

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Originally Posted by [XC] gomeler

That case is beautiful. I'd love a case like that for a cascade, too bad shipping it to the US would cost an arm, leg, and left kidney :(

---

How much do kidneys go for? Im a little short on cash right now lol. :rofl:

But seriously, that unit is quite beautiful. Why does the case have no frame though? It looks like it weighs about 300 lbs!:confused:

Quote:

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Originally Posted by [XC] gomeler

That case is beautiful. I'd love a case like that for a cascade, too bad shipping it to the US would cost an arm, leg, and left kidney :(

---

i'd like a case like that just for my computer but i'm too poor

Quote:

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Originally Posted by [XC] gomeler

That case is beautiful. I'd love a case like that for a cascade, too bad shipping it to the US would cost an arm, leg, and left kidney :(

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would be cheaper to kiss a$$ to a local fabrication shop:)

Quote:

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Originally Posted by teyber

would be cheaper to kiss a$$ to a local fabrication shop:)

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I've tried three so far, isn't cheap at all. Going to contact Mountain Mods next for an empty shell and make that work :(

Quote:

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Originally Posted by piotres

Cascade is going to be finished soon ...whose we'll be next ? :D

Thanks
Best Regards
Peter

---

<raises hand, me me> but shoot it would cost as much as the unit itself to ship it to the US, if you even could. I know the problems we had getting a Dimas table over here, gezz.

buckeye- plus 220/120

Nice packaging indeed, though probably did add much weight.

Unit got here a couple of weeks ago, promised Peter to post some pictures in this thread of his work, standing here at my place.

http://img.webrail.eu/Symon/scale%20home2.JPG
Unpacking the unit

http://img.webrail.eu/Symon/scale%20home.JPG
The unit in my benchroom

http://img.webrail.eu/Symon/scale%20home1.JPG
"Overview" of the room, the cascade standing next to his smaller "black brother" and Luke's small 2stage(on the background)


I'm really happy with my new unit, the unit is really clean and a real beauty :) Thanks Peter, for this nice unit. I sure will contact you again ;)

This week i will use the unit for the first time on some CF action, so no action pictures at this point....

Hello

Thanks :)

Luke's 2stager is standing behind "mine" black 2 stager ? :)

thanks
peter

Looks amazing. I think you also need a larger bench room now Magoa. Don't forget to post some results and more pictures when you have it fired up.