Help! :)

[Vex]

as long as u streer clear of the brazings, you should be fine..just go slow tho, if u rush u will kink it.

[Vex]

more piccys, this is after ive wired it up and just testing to see if it still works after the pipe bends.. i also stoped air flow around the cold rad this helped with the temp drop.

[Gimmpy224]

how cold is it though?

[Vex]

dunno havnt got a thermometer that goes that low

[Vex]

got a thermometer 2day, gave it a qucik run..and heres what i got..



thats it setup like the image above

[Vex]

also, is it safe for my compressor to start to get ice on?

[MeltedDuron]

that's not good... you're overcharged, have to let some refrigerant out or put load on it (should be fine once you're set up, so leave it as-is for now)

[Stewie007]

Nahh, not overcharged.... just need to overclock more to get the water temp up and then the evaporation rate up... :p JUST KIDDING!

[Vex]

atm thats running completely no load. havnt even put it in the res yet, so its cooling well...the room lol

[Vex]

right guys, i just finished the build so i could test it. and boy oh boy was it sh*t. now i used water in the test, and the temp only droped too -0.4 which i have to say is terrible!. also the cap tube started to become HOT so i turned it off. this was after about 30mins running. i dont know weither beacsue i used water that had anything todo with it? the water didnt freeze and i knew it wouldnt beasue the water was moving. but i thought i would atleast see -5 with it?



should i try again? im getting to the stage where i might just scrap it and use the the w/c parts for watercooling. but then again, if it was becasue i used water..lol well thats a differnt story then.

[SexyMF]

It takes hours to pull down several litres of water. 30 minutes is only enough time to warm up the compressor. That compressor is fairly small and if it's designed for A/C then the cap tube length is probably set for not so low temps but higher capacity. Without insulation for the reservior you are adding a lot to the heat load.

How hot is the condensor? If you cap tube is hot then you are not cooling the condensor enough. It doesn't really matter how hot (to a point) the cap tube is as long as you know that it's still liquid inside.

Also, I would sleave your mains connections so you don't get a shock when you are putting you hands inside the box to measure things.


Things are progressing well.

[Gimmpy224]

man i wish i had 1 lol


0.o

so do you need to let the setup sit for an hour or two before turning on your comp?

[SexyMF]

so do you need to let the setup sit for an hour or two before turning on your comp?

Only until the highside/lowside pressures equalize. On a healthy system this only takes a few minutes. If the system doesn't equalize and the lowside goes shooting up after you switch off the compressor you have a block.

[Vex]

start of the week finished bulding the "shell" of the case and did a first run. which was APPALING. totally depressing, 0.4 degrees. not even zero, as u all know so i decided to redesign the layout.....15mins pipe bending later and



but then i added too much water, even tho i did get down to -5.7 degrees

[Gimmpy224]

im watching this post closely 0.0 cause I doubt ill be able to find an hvac guy to help me out so im probably going to have to do what you did

[SexyMF]

This is a better layout. But you still really need insulation on the reservior. Lack of it is presenting a large unecessary heatload to the evaporator.

[Vex]

i just finished the insulation of my res, before i didnt get chance beacause i was just testing the system before i insulated so i could seal it all up better. however now ive done it. the worst thing about it was finding a stuitable insulator..i ended up using this... and duck taped it to sucure no flow of air. i know its not perfect but its better than nothing.

[Gimmpy224]

you used your pants?

( jk, if thats your leg lol )

What material is that stuff you used to insulate?

[Vex]

PROBLEM. the water in my antifreeze is frozen. im at -6.0 and ive got 1" thick ice around my evap..would pure antifreeze work? i have no plan on going beyond -20 and i should think my pump would be able to pump it, as it was just pumping ice. lol

[Vex]

you used your pants?

( jk, if thats your leg lol )

What material is that stuff you used to insulate?

its some plumers insulation...like a strawy material 10mm thick.

[_HL4E_HalfLife_]

PROBLEM. the water in my antifreeze is frozen. im at -6.0 and ive got 1" thick ice around my evap..would pure antifreeze work? i have no plan on going beyond -20 and i should think my pump would be able to pump it, as it was just pumping ice. lol

If ur Water/Antifreeze mixture is freezing on the evap than u need to add more antifreeze to the mixture. A 50/50 mixture should get you down to -40c or so.

I myself use winter windshield wiper fluid it won't freeze till -40c and does not thicken at low temps.

[Vex]

right i made a little mix of probably %50(windscreen stuff) 25%(water) 25%(antifreeze) and i got down to -10.



humm frost?...no...ice? yes.

[MeltedDuron]

looking good get some load on it, I'm interested in seeing what capacity this unit has...

[Gimmpy224]

ditto

[Vex]

too keep ypu guys up to date, earlier today i decided that before i put it on a cpu i need to get it colder...-10 issnt going to cut it. so off i went down to the pound shop and got me some "Concentrated Screen Wash" its includes anti-freeze and should be perfect. i also put a bottle of diliuted antifreeze in the freezer, so i could freeze the water inside and just get the antifreeze out..will run the system soon again see if i can get below -10.



just £1 thats $1.25 too you yanks out there