water chiller in a day

[EvoCarlos]

hello again
right so i have planed to make a water chiller and now i.ve got some bit together to build it.
Not sure how its giong to work yet but we will see my goal is to have it up and running today i have already started work on it and posting as i go on have a look and let me know what you think.
(oh and i dont want any posts with You can't do it like that)
well i have to say i.am doing it like that i mean its not like its rocket since lol

parts


oil check and filter back in mmmm fizzy but dont drink


service vavle fitted


the making of the water HX


test fit rad with HX


renforced HX floted rad with wire then brazed in place


start of sution line


more to folow just having a break 4 10mins and some grub got to go and take my air compressor apart next to make a better seal on the intake for vaccing
back soon....

[one_servant]

That's a great collection of goodies you've got there! Good use of that pipe bender too...I can tell this'll be a very clean build.

[n00b 0f l337]

Nice Water HX, hopefully theres good transfer through those fins! I don't see a condenser in that pile though....

[EvoCarlos]

That's a great collection of goodies you've got there! Good use of that pipe bender too...I can tell this'll be a very clean build.

thanks mate i was hoping it would look tidy

Nice Water HX, hopefully theres good transfer through those fins! I don't see a condenser in that pile though....

hey nol yeah the condenser was in the house and was to lazy to fetch the heat trasfer will be good you will see what im doing in this next lot of images

right i made a sucsesful port for my air compressor to convert it in to a vac pump had to take the head off and rotate it 180% but it works i rig'd the gages up so i could test the gages wernt leaking look see 29.x hg






right the heat trasfer part yes nol this is the bit you were thinking of

water box


its not finish'd yet but want to get the unit working as the box is later

bit more work on the suction line fix'x the HX to the suction line the whole HX will be in water box with frezzer pack fluid to give the compressor more off time

i'll get cracking and get it done only came in for the condencer and food

[sjg0]

EvoCarlos how did you cut that sheet metal?

[Bitemarks666]

looks like he use the angle grinder which is the real ghetto way. oh yeah

[EvoCarlos]

EvoCarlos how did you cut that sheet metal?

yep i just used a grinder to cut a groove the folded

looks like he use the angle grinder which is the real ghetto way. oh yeah

YOU NO THAT S$&T'S HARDCORE LOL

right all build't some of the final images

condencer

filter

2m of 0.031 cap

system under vac getto style lol

birds eye view


sorry for the poor image qualty in the last few it is low light out side now so the pics are gay

the unit is under vac right now going to leave it 10 mins and get some gas in there see what see can do

[teyber]

what welder did you weld that with?

nice work

[EvoCarlos]

what welder did you weld that with?

nice work

its a clark mig 100et turbo had to get the galv off the steel to get it to weld

[EvoCarlos]

right ive done it water chiller in a day have been out side playing with it till now so it was finished well be for 12 midnight

here the image you all wanted to see ice ice BABY lol




still working on the charge but pressures seem good


2gallon bucket of water went down to 9c after 15-20mins or so BIG water ice slug YEAH!!!!!!!!



right then im off back to my hloe for a bit i'll put up some images of the enclosure soon thanks for looking

CARL........

[loonym]

That's not a bad way to bend sheet metal for the home hobbyist since getting stuff bent can be expensive. Takes a good eye and a steady hand, good work.

[n00b 0f l337]

Wait you only vacuumed for 10 minutes?

[EvoCarlos]

Wait you only vacuumed for 10 minutes?

nope the unit was under vac for 30min with a 9.5cfm pump the gages were bouncing of the stop pins at the bottom the way i see it a normal vacpump is 1.5cfm and mine is 9.5cfm so no long vacing was necessary well it never is runing vac over night is point less if theres any crap in there the filter will get it thats what is for right.

[n00b 0f l337]

Normally, you do whats called a triple evacuation. You vac down to a set micron level, add an inert gas, repeat, three times. (Last time don't add the inert gas ). I bet you still have moisture and such in your system. The filter will remove basically a single drop of water, and remove very little as far as particulates go. It's rated to remove any excess from a triple evacuation.

EDIT: Your way undercharged right now too. What refrigerant are you using?

[Postal Dude]

NoL, what makes you say he's under charged? not questioning your knowledge, jus wondering what makes you say it

[n00b 0f l337]

First off it would seem he's running r134a, he's in vacuum, with a very low high side pressure, he's running a captubeas well, so its not the result of a TXV. He has no ice on his return to the compressor, and it seems like 15-20 mins for a small pale of liquid with a high surface area heat exchanger should be much lower then 9C. That entire area around those pipes should turn to solid ice in 4-5 minutes. He's going to want to get up towards 10-15psi low side pressure to really have a load held.

[Postal Dude]

Yeah he's using 134a. Im sure he'll probably add some more reading this. So hopefully it'll get sorted out. I think he just wanted some ice formed cus it was really late when he charged it.

[Xeon th MG Pony]

nope the unit was under vac for 30min with a 9.5cfm pump the gages were bouncing of the stop pins at the bottom the way i see it a normal vacpump is 1.5cfm and mine is 9.5cfm so no long vacing was necessary well it never is runing vac over night is point less if theres any crap in there the filter will get it thats what is for right.

using an air compressor you wont have even got down to 12,000 microns, as in you did absolutely nothing in terms of vacuum, just rarefied the air. you need to remove the moisture or you'll have lovely acidic oil in no time.

[n00b 0f l337]

using an air compressor you wont have even got down to 12,000 microns, as in you did absolutely nothing in terms of vacuum, just rarefied the air. you need to remove the moisture or you'll have lovely acidic oil in no time.

If it is a sealed manifold, like his, it is most likely perfectly possible as a single stage vacuum pump. Surely not as good as a 2 stage, and he's got alot MORE vacuuming to do, even with that 9.5cfm rating, but it should work.

[Postal Dude]

If doing a triple evac. How long should the unit be under vac for before puttin gas back in?

Vac out for x minutes

add squirt of r134a

vac out for x minutes

add squirt of r134a

vac out for x minutes

charge with r134a


someone kindly fill in the x's?


Also, i have read the guide and understand about squirting in high side, and vaccing out of low side, and vice versa. To drag moisture out of cap tube

[n00b 0f l337]

Depends on your vacuum pump, with yours I'd honestly do 6-8 hours for each vac.
And I wouldnt add a squirt of r134a, this is why you want to have nitrogen. Else your venting refrigerant.

[EvoCarlos]

hey hey i knew this would happen you guys can leave it can you alway saying no thats not right..

using an air compressor you wont have even got down to 12,000 microns, as in you did absolutely nothing in terms of vacuum, just rarefied the air. you need to remove the moisture or you'll have lovely acidic oil in no time.

question do you know why a vac pump has oil in it? oh and as i said at the start i'll do it how choose......... i said that i did not want posts like yours here

Normally, you do whats called a triple evacuation. You vac down to a set micron level, add an inert gas, repeat, three times. (Last time don't add the inert gas ). I bet you still have moisture and such in your system. The filter will remove basically a single drop of water, and remove very little as far as particulates go. It's rated to remove any excess from a triple evacuation.

EDIT: Your way undercharged right now too. What refrigerant are you using?

hey nol i respect what you say because you are not a nay sayer and the above i agree with
1.my air comp is more than suciffent at removing moisture its all up the wall lol
2.a tri vac was performed the reading in pic of gages are low because it was the 2nd vac stage i ran the unit to test the cap tube was clear this was done last night when i was finishing up the unit has had the 3rd vac today and a full proper charge i think in total its about 2hr under vac the compressor manifold was sealed with a red bull can gasket and its a reed valve type, same as refige comp just vents to air so its noisey unlike a proper vac pump that has oil to silence and catch the crap mine just fires it all up the wall lol....

low side is 16-20psig and hi side is 170-190psig just fitted a 10.5v transformer to the pc fan so i can run it off the controller also wired that up today just trying some setting under testing as we speak its all working great i dont no what all the fuss is about i built it and it works may be thats why pepole are so naggy on here no affence

[n00b 0f l337]

question do you know why a vac pump has oil in it? oh and as i said at the start i'll do it how choose......... i said that i did not want posts like yours here

He's giving you advice, technically your being the nay sayer to his nay saying
Chances are your removing air and such, but not boiling off moisture, Xeon is correct.

[EvoCarlos]

He's giving you advice, technically your being the nay sayer to his nay saying
Chances are your removing air and such, but not boiling off moisture, Xeon is correct.

yeah problly but like i said it works and im not going to pay £160 for a proper vac my way worked
i did do the boil test with a jam jar and shrader it did boil a bit out
i dont care any more it works so im happy
i just wanted people to be like well done and thats great not critasising cause i dont have a hvac certificut and with spelling like that<---- why would they lol give me one
also advice is nice but there is better ways to put it in text
peace out im going to go play chilled water.....

[Postal Dude]

If He heats up the system with a hair drier as he evacs it. surely the low pressure inside, and external heat source will boil off most the moisture? Putting it on vacuum reduces the boiling point of water, if you can add heat from the outside, and lower the BP of water in the system enough. It should work right? If his needles are bouncing off the gauges lower limit, does he not have the required vacuum? Obviously adding external heat to the mix will also help