3 stager build, part two.

[LukeXE]

Matter of few days

Insulated I and II stage, completed rebuilded II stage + loadtest of it.

I`m paying in this month partial refunds for three persons and I`m out of cash a bit.

[LukeXE]

I bought a lot of stuff from HVAC shop, photos on the evening Insulation, pipes and a lot of other stuff.

Bottle of R404a and HX should be on monday.

I got job in that shop, as HVAC technican, will work from 12th Jan

UPDATE, as promised earlier.

[tiborrr]

That's a great news you got the job, Luke! We are waiting on the pictures of assembled stages!

[teyber]

zomg thats like $30-40 in fittings!

congrats dude, cool to get a salary doing what you love and are great at

[LukeXE]

Thanks guys!

Those fittings are horrible expensive O_o Especially 6mm !! almost 4x more expensive than 12mm !

Another part of photos, acutally unit`s photos, at the evening

[[XC] gomeler]

Small fittings are horribly expensive due to low demand. Here in the US I pay as much for a 1/4" fitting as a 3/4" fitting even though it's 1/3 less copper. Just low demand

[teyber]

Small fittings are horribly expensive due to low demand. Here in the US I pay as much for a 1/4" fitting as a 3/4" fitting even though it's 1/3 less copper. Just low demand

which is why i just make my own fittings

[Moc]

You spend so much money on tools but make your own fittings? Tbh, just with using fitting your pipework will be much better than before.

[[XC] gomeler]

And you spend much less time working. Time is money and I hate fabricating what I can purchase for a nominal cost versus the hours spent bending copper.

[LukeXE]

Gotta nice results After 8h of work today.

Made 90% of I stage. Insulated it, calibrated bla, bla, bla.

Did II stage, waiting for HX so I used evaporator just to see, how II stage works and how I stage handle load...and I`m very excited about results !

-81C @ I stage loaded with II stage. Pretty awesome !

Second stage is showing -113C @ -0,5bar suction // 3bar discharge. I don`t have good thermocuple, so for II stage I used one, which showing around +5C higher temperature @ room temp. So real II stage temperature idle is around -120 with poor vacuum made by small, 1/10hp compressor @ 20-30minutes.

So I need to wait for last parts and I`ll start doing III stage. Hope to see next, awesome temperatures, now I`m aiming for -170C idle with methane/R14

Few photos for everyone.

















I stage temperature















By this unit I wanna show to everyone who thinks, that I lost good direction and I`m not able to do good stuff. I wanna show that I still can be good in this and still play in this game.

2009y have to be awesome

[quintus]

...
By this unit I wanna show to everyone who thinks, that I lost good direction and I`m not able to do good stuff. I wanna show that I still can be good in this and still play in this game.

2009y have to be awesome

Do it for yourself and for your customer not for any other persones

[Moc]

What ambient temp do you have in your work place?

[LukeXE]

At night around +12, +13C. At day around +17+18C.

At those days ofcourse.

[Patrickclouds]

can you put a load tester of 250 watt under the evap.
because first and second stage have to handle the load of the 3rd stage plus the load of the cpu

[Moc]

You have a very warm cellar ... hope you don't fool yourself. Think that the unit has to work @ 30°C !
I made the experience that it's quite easy to get nice unloaded numbers with autocascades. But with load it is a complete different story...
So don't be too happy before you get some load on the second stage. No load @ evap and a second stage compressor working at 3bar is nearly no load!

[noobzed]

you can do more clean unit ..
yes it work but the design is porr sorry :/

[LukeXE]

I got heated cellar.

I know that those are nice number and I know how auto-c temps look under load But this stage was loaded some time ago and it handle around -65C (then) @ IInd stage loaded with 160W dummy.

Now with tunning maybe it will hold better.

Even with -50C I`ll be happy.

But please wait till I`ll finish everything. then we will comment it`s performance.

[tiborrr]

Who cares how ghetto it looks - all that matters is PERFORMANCE. Keep it up, Luke and good luck load-tuning it!

[Patrickclouds]

lol

if i would buy an unit, i wouldn´t accept such a crappy looking one.

you cannot sell an unit with a demolished condenser or hand bended copper pipes.
i don´t want to know how the hxs are insulatet under the cardboard box. armaflex?

i hope that vacuum will be done by vacuumpump and not a 1/10 hp compressor.

sorry but thats just my opinion wehen you build units for a customer

[LukeXE]

As of the beggining of this project, I talked with Symphy and we wanted one:

PERFORMANCE

How it looks isn`t really important.

In box is armaflex. And insulation works good.

About any tools like vacuum pump or so, cool, I just made test vacuum to check how it will work, to show photos of -11xC temps. (prove that I`m working on that unit). I gotta professional hvac pump from job, so no problem with that.

About any "demolished condenser" etc, cool to, can I first finish that unit and then make it looking better ? And condenser isn`t demolished, I will make those pins looking good, I got tools for that

Probably I never made cool looking units. And everyone know that

[[XC] gomeler]

Luke, you are definitely known for your own style The condenser fins are simple, a few passes with a brush and they'll straighten out Looks like that insane mass of pipes that you call a first stage is doing it's job well, you surprised me there This should be a great Phenom II cascade, not many other chips can take the cold this thing could produce

[Moc]

Everyone who bought a unit from LukeXE knew how the units will look like...
You know that it's not very intelligent to vacuum with an old 1/10hp compressor and than fill with an flammable refrigerant ?

[LukeXE]

For me it`s okay. How much air is inside after that vacuum ? 1%, less ? For me that amount is safe, not explosive.

[symphy]

And another week without activity - or did you finish the unit without posting the progress?

What is wrong with you, what the hell are you doing? Do you think this is not serious? Do you think i'm not serious? You're showing nearly no effort....

Get this unit ready until the end of this month or we're finished. I'm prepared.

Imagine what happened to me - we're talking about much more than 2000 USD. You just took it, and i want it back. Get the unit working or pay. As easy as that.

No PMs please. No MSN chats. JUST DO IT. And don't think you can deliver an instable running pile of trash. If you can't build that unit, just give me my cash back. If you can do it... i'm waiting for OVER 2 YEARS now, be sure that i've my own thermal probes and my own load tester... Don't try to fool me with something that's not worth the money i paid. But, even here: If that's not possible, give me my money back.

[LukeXE]

building 3 stager is not simple as it looks. Especially with methane. So please don`t tell me that there is no effort from my side. If you wanna "pile of trash" I can deliver it even in this week. At first it looked like easy job, but it`s not.

I know you are waiting almost 2 years. but we talked a lot of times, that you`re not in hurry and I can finish other delayed units. I finished them and now working on yours.

You`ll get working unit which you wanted from me.