Prometeia Mach 2ST - can we still name this as a mod ?!

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12-25-2008, 03:01 PM
piotres

Prometeia Mach 2ST - can we still name this as a mod ?!

Hello

A long time ago Symon first asked me about modding his Prometeia Mach 2ST unit which he had had standing in his
house ...not working . Unit was moded sth around 2 years ago - new evaporator with enclosure, R507 refill,
desuperheater added, new suction line, new insulation . Unluckily later unit start to leak somewhere- I don't know
where and when, owner don't know too, but final is that now prommie has difficulties to reach even O*C .

First plan was to mod it for waterchiller but I advised that prommie case is too small to fit big condensor needed
to build good waterchiller (and IMO all cases which are sth like 50 cm long and 25 cm wide are too small to fit
good waterchiller inside them) . So we end up with plan of just "re-modding" old mach 2 ST .

So plan of mod first says about staying stock case, fans, evaporator, and compressor - I plan to change condensor
for bigger one, make longer suction line, mount temperature display etc. ...soon I checked that Unseen's Cube
condensor is WAY too big to fit on stock Mach2 case (this condensor is more than 3 times bigger than stock mach
condensor) . So I've decided that case must be changed too . Luckily I have at home laying from quite long time
Unseen's case . Symon decided that He want "apple green" color of case and some white CCFL inside case (due too in
stock Unseen's case have plexi window) . So I've resprayed it for color "Gelbgrun" RAL6018. I'll add Eliwell EM300
temperature display .

Finaly from stock Mach2ST left ONLY compressor (with oil changed to fresh and capacitor for brand new) ! (remember
first plan was only "moving prommie to life again") LOL .

Specs :

Compressor: Danfoss NL11F
Evap: Jan's evaporator
XV: captube 0.9 mm
Condensor: Unseen's big Cube cooled by Scythe Ultra Kaze 120x38 mm, case dimensions 480 x 225 x 230 mm
Refrigerant : R507
Case : Unseen's case, resprayed to color "Gelbgrun" RAL6018
Others: Revoltec CCFL dual 300mm kit white color, Tt Thunderblade 120x25 mm with RED LEDs on back of case (light can be switched off), Eliwell EM300 controller

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

Pack which Symon sent me .

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

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

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

I've wait 3 minutes ...and I saw this only :( (ambient temp 4C) .

so ....

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

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

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

Maybe one day I'll connect those 2 things ;) . But now they're standing on shelf in mine garage.

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

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

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

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

After some painting work I decide to unmount rest of prommie :

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

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

Well, IMO it's not good idea to hold braiding of suction flex line in that way :( .

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

This show that prommie's case in fact is too little for any mods ;/ .

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

This won't be useful anymore .

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

Looks like capacitor of NL11F had small leak also - will be changed for brand new one.

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

Oil will be changed for fresh Fuchs Reniso SEZ22.

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

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

New braze (with fresh 0.9mm captube) of old Jan's evap - staying from previous prommie mod .

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

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

unseen's case have place for gauge - so it'll be mounted of course ;) . I check it for leaks ;) .

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

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

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

Side of condensor are now black - rest will be in "natural" colors ;).

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

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

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

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

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

I stop now because I've run out of silver 40% brazing rods :(.

With Kindest Regards,
Peter
12-25-2008, 03:49 PM
ruffus

looks nice can't wait to see what temps u get as that is a nice size condensor
12-25-2008, 03:52 PM
imPurpleHaze

damn very nice mod! I'd really like to see you finishing it!
Keep pushing it!
12-25-2008, 03:55 PM
tiborrr

That's a monster! Hell, my cascade doesn't even have that powerhorse! Monsterous! :up:

Keep the pictures rollin'!
12-25-2008, 04:46 PM
runmc

Beautiful work Peter :clap: You have the Midas touch!!
12-25-2008, 05:25 PM
EliTE22

nice work:D paint looks good:D
what r u tuning it for?
12-25-2008, 07:20 PM
sdumper

Beautiful build....

By the way what brand exhaust fan is that in the picture?
12-26-2008, 02:03 AM
Unseen

Heyyy! Thats nice :D
12-26-2008, 01:41 PM
piotres

Tuning will be on 260W dummyload .

Fan on back is Thermaltake Thunderblade 120x25 mm red LED (those fans are not produced anymore, I have it from "old" supply) :).

Thanks

Regards
Peter
12-28-2008, 08:38 AM
SAE

-subscribed-

I like that build, except that ugly color. :D
12-28-2008, 02:44 PM
Jort

Hey piotres,

I think this was one of the first prommy's i modded few years ago. I dunnow for who it was.

The prommy's i did later where done better but we all learn don't we :D

Your doing very nice !!
12-30-2008, 02:22 AM
piotres

Quote:

Originally Posted by Jort

Hey piotres,

I think this was one of the first prommy's i modded few years ago. I dunnow for who it was.

The prommy's i did later where done better but we all learn don't we :D

Your doing very nice !!

Hi

I have thought it's Your work ;) . Mod of this prommie hadn't been bad except brazing of that braided hose :ROTF:.

You're right we're learning all the time :) .

Regards
Peter
12-30-2008, 02:23 PM
Jort

Quote:

Originally Posted by piotres

Hi

I have thought it's Your work ;) . Mod of this prommie hadn't been bad except brazing of that braided hose :ROTF:.

You're right we're learning all the time :) .

Regards
Peter

hehehe idd

yeah the other mods i did was with a copper piece around the flex, then its mutch stronger. Now the weak place keeps the same.

And brazing Stainless steel wasn't easy with the small torch i had back then.

I sold all my equipment 2 years ago, no time and place anymore.

Your still doing a pritty fine job ! i envy You, i hoped that i build a cascade once but i didn't have the time and the place for it :(

Good luck !!
01-06-2009, 08:47 AM
tiborrr

Any progress Peter? :)

Regards,
N.
01-06-2009, 10:41 AM
piotres

Quote:

Originally Posted by tiborrr

Any progress Peter? :)

Regards,
N.

Sure ;) . I'll upload pictures later today, or tomorrow.
01-07-2009, 02:42 PM
piotres

Hello

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

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

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

Please notice 2 suction line holders :p:.

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

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

Even this case isn't still too big :ROTF:.

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

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

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

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

Fan have switch to turn on/off only red light :yepp:.

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

Clear coating as Symon has wanted :yepp:.

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

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

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

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

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

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

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

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

From first tests it's looking like -31*C@260W and sth like -50*C unloaded :).

Regards
Peter
01-07-2009, 02:48 PM
tiborrr

These are some great temps considering NL 11F! :up:

Very good job, i like the black sleeving aswell! :)
01-07-2009, 02:52 PM
Eldonko

Nice work man, looks great
01-10-2009, 02:03 PM
Jack

Is it an option to attach the Vacuum gauge to the service port while vacuuming? Would that work as well?
I would imagine that then the stress on the vacuum gauge will be al lot less.
01-10-2009, 03:58 PM
piotres

Quote:

Originally Posted by Jack

Is it an option to attach the Vacuum gauge to the service port while vacuuming? Would that work as well?
I would imagine that then the stress on the vacuum gauge will be al lot less.

where exactly in You opinion ? to manifold aditional port ?
01-11-2009, 03:55 AM
Jack

No no, to the serviceport of the compressor.
01-18-2009, 12:31 PM
piotres

Hello

Unit is almost finished, left only final test on load before packing and packing :p::

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

Final temperature unloaded (unluckily eliwell doesn't show lower than -50C :( ),

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

and loaded @260W after 1 hour of testing :)

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

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

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

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

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

Bad news is that now (and during next 2 weeks) I have trully a lot of learning for studies, exam sesion is comming :( .

Regards
Peter
01-18-2009, 04:31 PM
Jort

VEry Nice work peter, proud to see this unit remade :D
01-20-2009, 12:57 PM
DistortioniZm

Wow, beautiful craftsmanship and excellent brazing skill! I totally suck at brazing, but I can arc weld and do almost perfect circles with a plasma cutter:D
01-21-2009, 11:52 AM
piotres

Thanks :) For me very important is good brazing sticks - for connections danfoss compressors-cooper pipes I use 40% silver brazing rods with flux . For me 3-5% Ag doesn't give nice brazes there. Danfosses' ports are steel and that's problem ;) .