Prometeia Mach 1 Mod - WORKLOG

[piotres]

Hi

That's won't be long begin . Situation is simple : one of benchtec's member ask me about modding his Prometeia Mach1 which he just bought, just to allow using it on newest CPUs - so need to hold big load and enclosure must be universal . Unit was near stock - side panels and front panel was resprayed in past to quite nice deep black color - nevertheless it'll be painted again (one side panel had had a dent, orginal that prommie was white) and it must have been regased in past . But seems like nobody clean dust from inside of unit throught its 7 years life (production date 2002 year) .


That is worklog and looks like updates won't be frequent because I have to make other unit first ...

Specs :

Compressor: Danfoss NL11F - stock from prommie, will be coat with fresh black paint (was bit rusted)
Evap: Steeper 40mm tall/42 mm diam., enclosure for all newest CPUs, 1.0 meter braided DN10 suction line (with
stainless steel mesh)
XV: captube 0.9 mm
Condensor: one stock from mach1 + added second one same as orginal so total 2 condensors will be used
Refrigerant : R507
Case : Stock Mach1 case with modded front panel and whole resprayed - skeleton powdercoated, side panels and
front panel resprayed on black
Others: Some 120/38mm fans, probalby custom electric ...



Big plus for owner for good packing for it's journey to mine workshop .





Suction line is funny short and stiff in stock mach 1 .







A lot of dust, dirt and ...rust inside case.





That result surprise me a bit - seems like somewhere must have been tiny leak of someone tune is for VERY small load . Of course that's without any load . Before that I had thought those prommie is still on stock R134a LOL . Stock Carel display from mach1 show error under -50c .



I found this later and I was sure that's not stock crimp and braze .









A bunch of electric wires ...





I have no idea what is orginal idea to use those verticaly walls on each one air inlet "wave" - I think only to prevent too big airflow inside case LOL .







Now much better .







That's only premier coat.



I had tried to save orginal sticker on NL11F but no luck .



More to come ..but I don't know when .

Regards
Peter

[teyber]

cool paint job on the nl11

[[XC] Oj101]

Can you give me an idea of what kind of load will it be able to handle once complete? It's looking good

[piotres]

Can you give me an idea of what kind of load will it be able to handle once complete? It's looking good

260+W

[sdumper]

Are you keeping the controller or removing in order to shift compressor back and add second condenser?

[piotres]

Are you keeping the controller or removing in order to shift compressor back and add second condenser?

About orginal electric sysytem it's not decided till now - maybe I'll stay with orginal system with relays on back panel, or maybe I'll make new simply electric .

[piotres]

Hi

A little update :

-skeleton powdercoated on white color
-side panels and front panel coated on color : "Cosmosschwartz" from BMW's colors
-refreshed paint on NL11F


But main part of work over this prommie will be done in June ...













Regards
Peter

[teyber]

czy to sa peter?

[piotres]

czy to sa peter?

Sorry , what ?!

[piotres]

Hi

MORE work has been done ... :

Mounting double condenser is stock prommie case is PITA I must say ..even mounting stock capacitor for NL11F is problem then .



Powder coated parts + custom made double condensor (2 * prommie's condensor - one orginal from this unit + one from mach 2ST) . It was leak tested before painting .





















Even with this is a problem . Of course plastic case for electic stock from NL11F must have been removed to close the box .



So it's mounted on condensor.









I decided that airflow generated by one stock sunon 120mm on condensor is too poor, so I decided to add one Tt Thunderblade (BTW very good fan- why it isn't produced any longer ? )





Testing tomorrow.

Regards
Peter

[loonym]

Always such attention to detail from you. You are a great craftsman.

[[XC] Oj101]

Wow, I think I just had a wet one!

I love the contrast between the black and white

[tiborrr]

Excellent quality, Pieter!

[piotres]

Hi

Thanks for all nice comments ! Really, am I so good ?













Final unloaded temperature in 22*C ambient temperature .



And that's on 260W dummyload after 2 hours of test .









That's packing made by owner of this unit (prommie came to me in this box), I only "mod" it a little to pack unit with longer suction line.



That's all about Prommie Mach 1 mod .

Thanks
Regards
Peter

[tiborrr]

Fantastic job again, Pieter!

[lutjens]

Hmmmm...very nice rebuild.

Now, you've got me thinking about my old Mach 2 that I've had sitting in my closet for 3 years...