View Full Version : my 1st cascade.. now i start to build it...
ye_3333
10-31-2005, 10:50 AM
ok soo i only get r507 for the 1st stage and r23 for the secend...
how mach i can get in the block with this r23?
soo i just start it today.. soo i dont have alot of pic..
thanks..
ye_3333
ye_3333
10-31-2005, 10:53 AM
and 2 more pic...
thanks
SustaiN
10-31-2005, 01:42 PM
Looks really nice so far! Looking forward to see it finished and with some great results ;) keep up the good work bro
Bloody_Sorcerer
10-31-2005, 02:02 PM
lookin good, good luck!
johann
10-31-2005, 02:39 PM
Great cant wait to see the results! Whats the hp of those compressors?
jinu117
10-31-2005, 02:50 PM
Consult with more experienced crew as you go along. Don't rush it :)
ye_3333
10-31-2005, 03:01 PM
thanks guys.. i hope to get some good temps with that gas (r23) .. i dont relly know who that gas work and wich temps i need to get with it.. i hope it will be good.. thanks.. forr all.. and i hope to give some pic in the next 2 days..
ye_3333 :clap:
Gray Mole
10-31-2005, 04:44 PM
Well first of all, you should be able to get it undercharged to -100 :D
However, and as long as your HX is decent, you should be aiming, with those compressors, for a -70 give or take a bit load temp. (I'm using a 130w load tester, though I think it's a bit higher when frozen) Depends on the load you're after really.
Funny, I'm just finishing up a small cascade with R290/402a and R290/R23 and 1/2HP and 1/3HP compressors.
So far -67 under load, but not really insulated.
Like Jinu said, take it slow, ask loads of questions, and have fun. It's good to see you're going ahead with the project, and you're using some quality parts. I really like your compressors :D
:toast:
Gray
runmc
10-31-2005, 05:23 PM
Where did you get the parts?
the_new_guy
10-31-2005, 09:21 PM
cool man,
ye_3333
11-01-2005, 08:56 AM
ok now the 1st satge work great!!! i get in the hx -42 in and -40 out!!!! but my problem is that the sensor i have is very very big!! 5 cm!! and i think that he dont read very good... i hope that -40 in the sensor is -50 for real!! :p:
there is one more pic!!
soo -40 out is good or not?
thanks..
ye_3333
driers putting before the separator of the oil?
jinu117
11-01-2005, 09:22 AM
Lovely... drier pointing upward...
Gray Mole
11-01-2005, 10:37 AM
hehe
Easy Jinu ;)
Anyways, as he said, that dryer's gotta be pointing down.
You also don't have a u-bend on the suction, might be a good idea. I also suggest a accumulator there as well. You'll likely find that you flood way back on the first stage unloaded, but hardly have the capacity under load. An accumulator, or at least a good u-bend and a long run, will help with that.
I assume the oil sep is feeding into the top of the HX and out the bottom for the second stage condensed liquid. If not, make sure it is. Your first (High) stage is in the bottom, out the top, and second (Low) is in the top, out the bottom.
Try to think of it as 2 individual stages, and just build each one right.
You don't really need a coil between the oil sep and the HX do you? No vibration to deal with and no heat really.
I'll try to get the pics of my cascade up quick, as I'm using captube on it as well, and R23, so I'm dealing with some of the same issues you are, and maybe it'll help.
Anyways, just change the filter and make sure your in/out configuration is set up right, otherwise you're not doing too bad so far. I suggest getting that accumulator out of there, and just insulating with foam when you're done. Just in case you were thinking of leaving it there.
You're also gonna need to get some cheap k-type bead probes for permanent measurements and just tape 'em onto the HX exit (for the High stage), and evap head before you insulate. They'll be permanent, but you're gonna need 'em there when you're using it anyway.
Cheers
Gray
jinu117
11-01-2005, 11:04 AM
Well, the smirk from me was the fact as if he acted like he knew how to build single stage and claimed so on the other thread. Ye, ask all you can here and confirm with people here especially on 2nd stage before you start brazing things shut... after fixing the first stage. Little things can turn into disaster when high pressure gas is involved. Would hate to see someone just disappear.
Dementor
11-01-2005, 12:43 PM
I remebered the previous talk on the other thread aswell... Looking ok so far.. but I just dont see the rush and I totally agree with jinu.
Marvin
11-01-2005, 05:31 PM
It is important reading chilly´s threads about safety. :stick:
ye_3333
11-05-2005, 06:05 PM
ok i all most done with it.. but i have a big problem.. i use 2 compresor sc12cl for the 1st and secend stage..
now i get in the hx -44 in and -42 out.. soo the 1st stage is good.. now i work on the secend stage in the last 2 day.. and i fill in r23!! to abut 100psi then start the compresors to work!! and then i fill in more and more gas!! then i got -85 in the block.. and then i turn off the system and boommmmmmmmmmm the compresor is dead!!!! too mach psi i think.. soo way is that??
i even tray with anther compresor sc10cl and the same problem the compresor cant work on 500-600 psi... what i doo rong?
are you guys sure that this compresors are god for secend stage?
help???
thanks
ye_3333
jinu117
11-05-2005, 06:17 PM
100 PSI static charge while first stage is running? If so, I would hate to think what kind of danger you are putting yourself in.
epion2985
11-05-2005, 06:57 PM
I wont say you need some expantion tanks to hold the expanding gass when your first stage isnt cooling it when the units are off, but what do I know.
runmc
11-05-2005, 07:31 PM
ye_3333
You are acting very recklessly on this open forum. We have warned you several times about getting experience before attempting a cascade. You have chosen to ignore our advice. You keep asking questions about your second stage gas. You should do some research before you even try this gas.
I am closing this thread and I will close any thread you start in the future about building a cascade. :mad: