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Finally i have got refrigerant.
and guess what for free.
i got this to trial until Christmas.
then im getting some r290.
then what eva is the best im gonna buy a 4.5kg bottle. :toast:
it came with some basic data sheets, stickers and stuff.
it says at 7psig its -40c, where as propane is 1psig at -40c
the guy said that the stuff is good in reverse cycle air conditioners.
http://www.xtremesystems.org/forums/...id=20334&stc=1
WoW! That should be great gas and get real cold @ below 7psig. You surely can't beat the price ... lucky you! :cool: :toast:
first i regased me 24/7 system 220w compresser.
it use to hold -31c after 3dmark2001se now lets see what it does with HR22/502
http://www.xtremesystems.org/forums/...id=20335&stc=1
this is another one that i made today with an old evap.
i replaced the capilary tube with a fresh piece of 0.031" got rid of the old 0.026" and replaced the 1/4" pipe from evap to 3/8"
i also used r290 at 3psig as a shield gas.
http://www.xtremesystems.org/forums/...id=20338&stc=1
http://www.xtremesystems.org/forums/...chmentid=20339
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http://www.xtremesystems.org/forums/...id=20337&stc=1
this gas also has to be liquid filled, i do that through the high side right.
and only fill when the system is off?
with a bottle of this stuff it is a lot quicker to fill that with the bbq gas
a little squirt and i overcharged it to the max.
gonna have to get use to that
its about time i got some refrigerant.Quote:
Originally Posted by Hobocrow
the guy that gave it to me said that it performs the same as r290 though.
rotten cabbage smell
initial boiling point -50c-0C
auto ignition point 550c
vapour pressure at 20c:950kPag
flash point -104c to 60c
lower flammibility limit 1.9% in air
upper flamibility limit 9.5% in air.
vapour density 1.5 to 2.0 air=1
its 95% c3H8 ?
and 5% c2h6 ?
what do ppl think of this refrigerant from this?
ok i did last evac and charged again about 10psig too much.
http://www.hychill.com.au/pdf/hr22ptc.pdf
http://www.xtremesystems.org/forums/...id=20340&stc=1
http://www.xtremesystems.org/forums/...id=20341&stc=1
and this is it loaded, about 3psig, but its flutuating in temps?
might shorten cap tube, its 3.3m new
no load -50+c.
idle -43.8c
-29c mother board monitor
c&c -39c.
time to tune it
http://www.xtremesystems.org/forums/...id=20342&stc=1
http://www.xtremesystems.org/forums/...id=20343&stc=1
http://www.xtremesystems.org/forums/...id=20344&stc=1
no oc on gpu as i dont trust the fan on gpu
Wow, that's some very nice stuff. Seems similar to R22
really nice kayl!
Congrats Kayl,
Great temps - Don't you love the 031? I do :D
Kayl ... when I'm charging HC502a, which requires a liguid fill. Since this is not a High pressure gas, after the initial static charge, I charge it into the low side with the compressor running.
Here's what I do ... open the tanks' liquid valve and fill the charge hose With the manifold set valves closed. Then, Very, very slowly crack open the low side manifold valve and monitor the pressure guage( not letting it move too high) that will give you one hose worth of pressure, which falls off quickly.
It's quite slow, but works! ;)
Quote:
Originally Posted by runmc
next im going to try 0.035, i though i can only get 3.3m packs, cut some off and throw away, got one size bigger and dont cut, more subcooling.
thanx for that hobocrow.
will do that in future. how much do you static charge to?
also can i open high side to push gas out back into bottle, or do i need to put it in a seperate bottle?
first one i filled to 100psig
that use to be amount for r290, though it was a starting point.
its the R22 replacement, US buy alot of it aparently.Quote:
Originally Posted by bh2k
he said australia resources make a very rich refrigerant, one of the best, his option though
I did a static charge to 60psig @ 65F. After running the compressor and charging the low side like I described, I ended up with approx. 95psig @ 65F.Quote:
Originally Posted by kayl
It runs @ 2psig/140psig loaded and goes up to approx 195psig before falling back.
I've never tried to recover the HC502a, it's a blend and separates (fractionates?) when in a gaseous form. :)
hmmmmm.
thanks ill try that.
well im emptying me r290 2kg tank, and im gonna vacuum it and collect some.
try it in reuse as i have a lot of cap tube tuning to do before Christmas.
4 phase change units to perfect for practice.
i need to get use to cap tube for the autocascade and know me loads vs length.
some where to start.
So, from what ive gathered, the other 5% of ethane (c2h6) lowers the boiling point of the propane (c3h8) to make something that's good for -50C @ 0psig?
i think so
maybe its the came stuff as care50?
i was trying to get some ethane to mix to make it
it idles at -42c. i have done calculation off r290 chart though. as i beleve that the chart for the hc22/502 is only as good as straigh r290, the extra 5% ethane doesnt seem to be doing much?? :confused:
even at no load 0psig evap is -42c.
i think i ended up with about 8-9 foot of 0.031 capillary tube.
i am still happy with the refrigerant :toast:
i have been really bussy this week, be cutting down from 11 foot of 0.031 cap tube.
my barton also died this week :mad:
had to fault find pc and get a new chip.
they dont sell bartons any more here only seprons, and mobile chips can only get off ebay every now and again.
this should keep me going until cascade is finished and then 3000 64 here i come for some benchs, need to save some $$
the sempron did 2.61GHZ on 1.9v vcore,increase vcore doesnt yield much more MHZ at all
2.52GHZ at -42c with 1.8v vcore but if evap goes to below -30c pc crashes.
needs 1.85v to keep stable at -30c with other r12 system.
the r12 system got 1m of 3/8" added to suction line to add refrigerant and make simple accumulator :toast:
http://xtremesystems.org/forums/atta...id=21016&stc=1
http://xtremesystems.org/forums/atta...id=21017&stc=1
http://xtremesystems.org/forums/atta...id=21018&stc=1
Kayl, That's cool :cool: ...ummm, I mean that is Cold! :) Well done, you know what I mean! :thumbsup:
when u get a64 i will help u to get card nice and cold if u want (vmods)
Nice job Kayl! Nice to see someone besides me trying out these alternative refridgerants. In Canada it is the only kind we can buy without a license. I have a 50lbs bottle of R502a from Duracool that I have been using. First system I recharged is running -63C unloaded. It may be a little undercharged still though. Again great work!
I emailed duracool a while ago with no response. How much did you pay for the 50lb cylinder of 502a? I was looking into getting some (i'm in canada too :D).
By the way the ozone depleting substances certification is only a one day course, you can take it at most of the major hands-on colleges/universities.
If your in BC BCIT has it a few times a year.
I believe I payed $235 for the container delivered. I was going to take the cert but I'm pretty lazy ;) Just as easy to use this Duracool stuff
How do you order it?Quote:
Originally Posted by DoGMaN
ok another small r12 compressor that i got off the side of the road, fell off a trailer or something and pipes got broken. my friend down the road told me about it.
it draws about 0.9A's at 240v for about 215w power consumption.
Evap idle -35.1c
Suction 6” from compressor -5.9c
Pressures 3psig/165psig
Liquid line 29.9c
Compressor bottom 43.2c
Room temperature 21.1c
Subooling 10.5k
Supa heat 31.8k
Once again at 0psig no load I get -42c.
http://xtremesystems.org/forums/atta...id=21340&stc=1
http://xtremesystems.org/forums/atta...id=21341&stc=1
this is some oil I also go off the guy to try with the hc22/502. its clear, not sure if it likes moisture?? I asked buy he didn’t know, worth a try.
http://xtremesystems.org/forums/atta...id=21342&stc=1
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http://xtremesystems.org/forums/atta...id=21343&stc=1
i had an old r12 compressor cap off checking the wiring out to wire this thing and the damb dog got to the compressor cap, :banana::banana::banana::banana::banana:.
wow so how many comps now?? 5 was it? have u got enough to build all the systems for your customers?
hahahaha thats soo cool how you find stuff. when i find 2 bux that makes my day :ROTF: