needmorstuff's Chiller

This was an interresting build over the last few weeks, alot of experimenting invloved.

Gary contacted me asking for a chiller to hold 400w at 15c, sounds easy rigth, well its not. :p:

Firstly I had a Danfoss FR8.5 compressor, it held the load but sounded really really bad. Then I moved on to a Electrolux MP90FB 9cc compressor, a little better but was running quite high pressures, more silent though. Eventually I popped the final compressor in, a R12 1/3hp 12cc Tecumseh. It runs alot better, little noisy when starting for a few seconds but then smoothes out nicely and runs nice and smooth.

Gary also told me budget is tigth so no fancy cases, controllers etc. I ended up using a Ranco Thermostat and it works perfectly. Current setting holds water temp between 14 and 17c. Capable of sub zero if needed but Gary wants nothing of that :D No condensation issues or insulating pipes.

It holds 400w of resistor load easy which in real life is alot more. I believe it can hold 2 or 3 pc's to the current setting.

Some specs:

Compressor Tecumseh 1/3hp 12cc
Evap: Coaxal HX 8' long
Controller: Ranco O16
Condensor: From old Ice machine, big though :) with custom shroud
Fans: 2 Papst typ9956
Gas: R22
Captube: 5 feet 5 inches 0.031

Some pics:

http://emerald.srv2.com/~sokkiesc/Fo...iller/unit.jpg

http://emerald.srv2.com/~sokkiesc/Fo...ller/front.jpg

http://emerald.srv2.com/~sokkiesc/Fo.../fanshroud.jpg

http://emerald.srv2.com/~sokkiesc/Fo...thermostat.jpg

nice, what is he chilling with it?

AMD system CPU/GPU/Chipset/Mosfets

What temps do you achieve with this chiller?

I never tested to max temp as he wont use it at that temp, I did test for max temp on the 8.5cc compressor and temps was around 3c with 400w. I had problems with freezing liquid and used a weak pump etc etc which is also a reason I did not test for max temps.

Johann - really good piece of work there mate.

What sort of price would one of these be in a case?

In terms of noise - better than a mach?

I reallly like the no thrills approach - 400w @ 15 degrees, brilliant.

Mav

Johann went the full mile to please me with this build, he forgot to mention that I changed my mind about a drop in coil and decided I wanted a coaxial one, very accomodating and professional.

I didnt request the different compressors, it was all down to him as he wasn't happy - very nice to have someone like that building for you.

Fast turnaround as well considering, abut 3-4 weeks from initial pm to dispatch.

I am cooling the following:-
ATI x1900xt heavbily oc'd
opty 170 @ 2.9
dfi sli-dr chipset
dfi mosfets

using

apogee
ek x1900 block
ek nf4 rev 1.1 chipset block
mips mosfet block

all pumped by an iwaki wmd30rz

unit will be housed in a garden storage container outside my study (external) for noise and heat considerations.. will post final pics etc. in a couple of weeks when i get it all done.

Can't wait to see it running and the temps you get out of it. Going to be a great system by the sounds of it.

temps will be 14-17 m8. nothing sub zero - just very cool and quiet

Did you have insulated your motherboard ?
regards

no, read +14 to +17 no minus figures so no insualtion.

Doesnt matter, if the temp is below ambient you will get condensation.

Actually it depends on the dew point.

indeed it does, and this is dependant on humidity and temp... but i reckon i will be ok with these temps.

What are the ambient temperatures going to be?

lol, johann knows what he is doing guys :cool:

well in my study I reckon between 18 and 23 (cnetral heating keeps hluse at minimum of 18 in winter and in summer the max we get in uk is 29/30c so indoors 23ish?

now indoor humidity is a different matter all together. I would need a barromoeter to get those figures.. but from reading i think about 50% as it aint mouldy in my house and I don't get many static shocks.

joahnn definately knows what he is doing!! I however am a different matter :)

also he has no experience/control over my conditions, and he will not have to pay for my system when i set temp too low - eek.

oh just realized the chiller is for you, my bad :D

I would insulate since it would make sure there is no condensation, and it will help with temps. I will do a test for you tommorow. :D

I would insulate reguardless. Maybe you will have a few people in your room for a while, the humidity will jump up, a drop will form on a line and slide down and hit your motherboard in a bad place and boom, possibly a completly fried computer. Not worth the risk, unlese you are really rich or something.

Even if you are rich and want to waste your money waste it my way. :cool:

would rather raise water temps to 20 than insulate.. I basically do not have the time, 2 kids and a wife to keep happy.

The goal of my project is having cooler than normal watercooling temps, my study quiet and cool. Not sub zero or even near temps.

Oh, I see I would still be scared, but then I am paranoid.

Random back around crimbo i use towork for Ranco..well they are now called Invensyes Controls LTD here in Plymouth England

The following errors occurred when this message was submitted:
johann has exceeded their stored private messages quota and can not accept further messages until they clear some space.

JOHANN UUUU we need to talk!!!

I'll ask him to check the thread tonight.

Quote:

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Originally Posted by needmorstuff

I'll ask him to check the thread tonight.

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Just checked this thread. I deleted 300 messages from inbox now.

Gary, Your second set of fans been sent will get the tracking to you tonigth. Pity the first ones dissapeared in the postal system. From now on everything sent by recorded delivery

cheers m8 - recorded is a good idea. chiller is now plumbed into my box through wall and all electronics connected... just need to install new ek blocks in system at the weekend and post pics :)

Quote:

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Originally Posted by needmorstuff

cheers m8 - recorded is a good idea. chiller is now plumbed into my box through wall and all electronics connected... just need to install new ek blocks in system at the weekend and post pics :)

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Good stuff :)

got the fans m8 - many thanks. one question... the thermal probe from the controller is made from aluminium? (i think) should i do anything with this as it doesn't look as though it was designed for constant immersion. Or will my zerex stop it corroding?

pics... one question though - the controller is altering the speed/voltage to the fans it is controlling.. is it also supplying varying voltage to the compressor? I thought it would be and on-off situation not a variable voltage one?

the extra long tube going to the cpu is to allow me to plumb my x1900 back in (if persivore can repair it)

http://img128.imageshack.us/img128/7...0063tg4.th.jpg

http://img139.imageshack.us/img139/5...0064gv8.th.jpg

http://img228.imageshack.us/img228/2...0065ci5.th.jpg

http://img346.imageshack.us/img346/7/p7230066op5.th.jpg

http://img155.imageshack.us/img155/1...0067mf9.th.jpg

http://img154.imageshack.us/img154/4...0065ta1.th.jpg

Any progress Gary? I want to see the chiller doing its job

I opened up the front of the box where the condensor is with 2 x vents (brown building type ones you get from B&Q) and still need to get two of the 120mm fans to pull air out over the compressor. Even opening up the front has made a difference.. It hasn't stalled yet but then the temps haven't been as high. I am a bit busy to do any comprehensive testing at the moment (and it isnt as hot)

Good news though - it holds my cpu - chipset - gpu and mosfets at 27-idle and 34 load. That is with water set to 20c. Also i went in my study last night to check emails and went to turn pc on.... it was already on. My major goal was to reduce noise and heat in study whilst having better than wc temps. This has been a success.

I will probably drop water temps to 15c and see if i get any condensation..

Overall very happy with chiller - just need to give that box some more attention.

looks great, i wish my room was on the first floor so i could do something similar to that

Set it so your returning coolant is 20C if not all ready set this way due to the length of your lines.

loop order...
pump>through wall>pc>through wall>chiller>res>pump

thermostat is in the res - does it really matter where the thermostat is? i can set temp up or down as i wish.

ok so it is set to monitore the return. Yes the placment matters as it will effect temps by a bit.

thanks for the trelpy m8. of no consequence now as i am selling the chiller.