2 Stage Cascade

[sdumper]

My eta is mid October so not much to show just yet except for the parts which have started arriving...


By the way before someone points it out I already know the date on my wifes camera is wrong :rofl:

General info:
2 - 16.4 cc rotaries (11260 btu) -- http://pwcg.panasonic.cn/indoorEn/productview.aspx?pid=328&pclass=1024
Tes2 TXV 00 Orifice
20 plate HX
PARKER Suction Line Accumulator, model # PA-5083-12-7C
Henry Oil Separator (Helical ) Model # S-5181
Chilly1 Evap
5 foot suction
.40 ( 0.10mm) captube on second stage
Frame harbor freight cart + wood

http://i190.photobucket.com/albums/z294/sdumper/100_1290.jpg
Another angle on the Parker and condenser
http://i190.photobucket.com/albums/z294/sdumper/100_1291.jpg
Another angle
http://i190.photobucket.com/albums/z294/sdumper/100_1292.jpg

http://i190.photobucket.com/albums/z294/sdumper/100_1363.jpg
http://i190.photobucket.com/albums/z294/sdumper/100_1364.jpg
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http://i190.photobucket.com/albums/z294/sdumper/100_1366.jpg
http://i190.photobucket.com/albums/z294/sdumper/100_1367.jpg

After my fire my wife makes me work practically in the driveway :) Cant blame her...
http://i190.photobucket.com/albums/z294/sdumper/100_1368.jpg

As the wheel turns ---

1st stage Ice...
http://i190.photobucket.com/albums/z294/sdumper/100_1371.jpg

Naked picts before cleanup and insulation + electrical...

http://i190.photobucket.com/albums/z294/sdumper/100_1380.jpg
http://i190.photobucket.com/albums/z294/sdumper/100_1381.jpg

Ice on second...

http://i190.photobucket.com/albums/z294/sdumper/IMG00640.jpg
http://i190.photobucket.com/albums/z294/sdumper/IMG00641.jpg


Parting shots...I am satisfied it is leak free so it will be crated tomorrow and placed on a pallet for UPS pickup monday.

Pardon the tools on top it made for a convenient cart to place a few things on while cleaning up :)

http://i190.photobucket.com/albums/z294/sdumper/100_1407.jpg
http://i190.photobucket.com/albums/z294/sdumper/100_1408.jpg
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http://i190.photobucket.com/albums/z294/sdumper/100_1410.jpg

[Kensek]

What would be the $ neeeded to build a 2-stage cascade as yours, just a ballpark.

[teyber]

dude where did you get those fittings for the hx?!?!?!?

[Gunslinger]

Do you have the pivoting wheels mounted together? :D

[road-runner]

Do you have the pivoting wheels mounted together? :D

:rofl: I hope he does... :ROTF:

[sdumper]

dude where did you get those fittings for the hx?!?!?!?

United Refrigeration

[[XC] gomeler]

dude where did you get those fittings for the hx?!?!?!?

Not point to them. I used them once and they were even harder to seal than 1/2" hard-drawn copper stuffed into the HX.

[sdumper]

gomeler;4011198']Not point to them. I used them once and they were even harder to seal than 1/2" hard-drawn copper stuffed into the HX.

I plan on brazing them to the hx...

[[XC] gomeler]

I plan on brazing them to the hx...

Well yes, but you end up adding one additional joint per connection to the HX versus straight 1/2" into the HX. Just a matter of preference I suppose :shrug:

[sdumper]

gomeler;4011271']Well yes, but you end up adding one additional joint per connection to the HX versus straight 1/2" into the HX. Just a matter of preference I suppose :shrug:

Its actually bigger than 1/2 and thats why i bought reducers to 1/2 inch and when using 45% staysilv and acet/oxy its not difficult to braze leak free.

No big deal really it just seemed easier to me and didnt cost me to much.

[Bobbylite]

is this unit spoken for already? hit me with a pm, first SS you built me going strong :) kudos on the mount being 1156 friends as well. /ot

[road-runner]

is this unit spoken for already? hit me with a pm, first SS you built me going strong :) kudos on the mount being 1156 friends as well. /ot

I believe this one is mine unless he is building more than one right now. :shrug:

[kayl]

looks like a strong cascade in the works. With one of the rotary compressors whats the copper pipe coming out the side of the compressor used for??

[EvoCarlos]

looks like a strong cascade in the works. With one of the rotary compressors whats the copper pipe coming out the side of the compressor used for??

is that not the accumilator kayl?

[sdumper]

is that not the accumilator kayl?

Yep thats the Parker Suction line Accum...

By the way on another note I had a fire in my garage last night.
I was load testing a SS I was finishing up and shut the SS off and went upstairs to start a movie with my wife when she smelled smoke. It turns out I forgot to shut off the load tester :shakes:

I used to have a thermal cutoff switch on my load tester but it was shorted a few builds back by condensation so I removed it. All in all a pretty scary affair and I burned up my work bench and my hands and feet pretty good pulling things out of the way.

This will not impact the timeline of this build in anyway just thought Id share the dangers of leaving a load tester unattended :(

[road-runner]

Damn, sorry to hear that. Sounds like may need to fix the thermal cut off switch thing... :shrug:

[ruffus]

ya man i did that to 2 or 3 of those plastic chilly one mounts it sucks

[sdumper]

ya man i did that to 2 or 3 of those plastic chilly one mounts it sucks

Yepper sucks indeed...

Need to replace the 50+ dollar Duniek mount and a $35 relay not to mention replacing the suction line...lost at least 3 days of time as well...

I will be much more careful in the future way to many things can go bad if your not uber careful.

[road-runner]

How many amps will this draw, just wondering if I am going to have to add a dedicated 20 amp circuit for it?

[sdumper]

It will likely do the following:

1400 to 1500 on startup of the second stage and when it hits its running temps around 1100watts.

I usually run an extension cord so when benching my PC and Cascade are on different breakers.

Target for stage 1 pressure test and vacuum Sunday night.

Friday and Saturday will be busy days because I need to build a box and ship chipsy single stage by Monday.

[sdumper]

Starting to make progress and still plan on trying to get Ice on stage 1 late Sunday night or Monday night.

Please excuse the mess I'll tidy once the first stage is brazed up...

http://i190.photobucket.com/albums/z294/sdumper/100_1363.jpg
http://i190.photobucket.com/albums/z294/sdumper/100_1364.jpg
http://i190.photobucket.com/albums/z294/sdumper/100_1365.jpg
http://i190.photobucket.com/albums/z294/sdumper/100_1366.jpg

I hate flares...looks like a nice big leak...
http://i190.photobucket.com/albums/z294/sdumper/100_1367.jpg

After my fire my wife makes me work practically in the driveway :) Cant blame her...
http://i190.photobucket.com/albums/z294/sdumper/100_1368.jpg

[road-runner]

Looking good sdumper, I am a plumber and have had problems with flares myself. They have to be done just right or it will leak, one good thing about it is you can cut it off and do it again... :up:

[runmc]

Why is the discharge line running down and around :)

[sdumper]

Why is the discharge line running down and around :)


For the condenser? I left the old line in place and just brazed into it...

[runmc]

Maybe it's the way I'm looking at it but it looks like it goes under the condenser. :)

[sdumper]

Maybe it's the way I'm looking at it but it looks like it goes under the condenser. :)

Nope it does go under the condenser in an "S" shape. This is very typical for Copeland Condensing units and im not sure if they do it for vibration or if it helps with condensing...


Actually more like this shape "SSS" all connected...

[yngndrw]

On the note of the fire, I'm assuming you're using something like this:
http://cpc.farnell.com/microtherm/03en15t044-40-25/thermal-switch-n-c-40c/dp/SN35831

You could just insulate it with liquid electrical tape, hot-melt glue or something else like that after soldering the cables on.

[sdumper]

On the note of the fire, I'm assuming you're using something like this:
http://cpc.farnell.com/microtherm/03en15t044-40-25/thermal-switch-n-c-40c/dp/SN35831

You could just insulate it with liquid electrical tape, hot-melt glue or something else like that after soldering the cables on.

I am now...my last thermal shutoff shorted out and was removed.

The fire was really stupid. I turned off the SS i was load testing and forgot to turn off the load tester...big big fire and a very tough lesson learned about safety.

[sdumper]

1st stage Ice a day later than planned...but still well on track to finish by the date I stated.

http://i190.photobucket.com/albums/z294/sdumper/100_1371.jpg

[gosmeyer]

1st stage Ice a day later than planned...

Better than 2:up: Progress is good!

[sdumper]

Thanks :)

[teyber]

looks awsome!

[sdumper]

looks awsome!

Thanks Teyber :)

[road-runner]

Looking good, looking good :up: sorry I have not been on much. Been busy fixing hurricane damage on the house that was done from IKE and remodeling also, so I have not had much time to be online... :up:

[sdumper]

Looking good, looking good :up: sorry I have not been on much. Been busy fixing hurricane damage on the house that was done from IKE and remodeling also, so I have not had much time to be online... :up:

No worries I will be finished with all plumbing and pressure testing by Saturday and will likely charge the second with some r507 just to show some ice. The r1150 might be here early but im not banking on it so it looks like my target will still be 4 weeks instead of 3 so 10/2.

However if the r1150 arrives this Friday then I will wrap this up Monday or Tuesday.

[road-runner]

No worries I will be finished with all plumbing and pressure testing by Saturday and will likely charge the second with some r507 just to show some ice. The r1150 might be here early but im not banking on it so it looks like my target will still be 4 weeks instead of 3 so 10/2.

However if the r1150 arrives this Friday then I will wrap this up Monday or Tuesday.

it will probably be a week or more before my house is back in order anyway...

[sdumper]

Pressure testing at 2nd stage except for the suctionline/evap at 250psi.

Too many joints to possibly have leaks so I wanted to make sure my oil sep, expansion tank, HPCO, Filter Drier, Desuper condenser, 20 plate HX 2n stage ect... was leak free before I braze in the evap...2nd stage ice with r507 Sunday and 2nd stage tuning will take place once the Ethelyn arrives...

Which reminds me I need to ping Chris and see if that tank came in.

Ship date of 10/3 is still accurate...

[sdumper]

Hmmm I was getting ready to plumb in my suction line when it struck me that I have my compressor located pretty far from my HX...
I really hadnt thought to much about it until now but I hate the idea of running my cap tube that far before I can wrap it around my suction line.
On the flip side I could run my suction line over to the other side so that its closer to my cap but I am not sure what impact I will have by one adding additional length to my suction and two adding additional bends in my suction. I may be fine insulating my cap very thoroughly and stretching it 12inches before i wrap around my suction but thought Id ask a few opinions. See picture below to see how far the cap would need to run before it could be wrapped.

3 options:
1) leave it alone and stretch my cap insulated with very thick pipe insulation (easiest)
2) Run additional suction pipe so its closer to my HX (my flex line is already 5 feet and this would add an additional foot of suction plus bends -- not sure what the impact would be).
3) Cut out my second stage plumbing and move my compressor closer to hx. Major PITA because all plumbing has now been completed except for the flexline brazing into the compressor suction.

http://i190.photobucket.com/albums/z294/sdumper/100_1371.jpg
http://i190.photobucket.com/albums/z294/sdumper/100_1376.jpg
http://i190.photobucket.com/albums/z294/sdumper/100_1377.jpg

[sdumper]

Going with option 1 with a lot of insulation....

[sdumper]

Ok all brazing is complete and will start pressure testing as soon as evap cools...

Just for kicks i still might charge with r290 and generate some ice...but Im still waiting on the Ethelyn...

[teyber]

can't wait! i bet you get some impressive results with the rotaries....

[sdumper]

Holding nicely at 250psi with no snoop bubbles so im going to let it sit overnight and then start the vacuuming...

I also need to get out my wire brush and start my polishing and then do a little painting...so nows as good a time as any...

All in all 2 weeks to build but I was slowed down by the fire and waiting on parts.

[road-runner]

Looking good sdumper, I saw my buddy with the hotshot trucking company yesterday and ask him if he would have a truck out your way around the 3rd. He said he may just have one out that way, if you can give me a date I can find out for sure or we can wait till your finished and I will ask, he said he will not charge me anything if he has a truck out that way... :up:

[sdumper]

Looking good sdumper, I saw my buddy with the hotshot trucking company yesterday and ask him if he would have a truck out your way around the 3rd. He said he may just have one out that way, if you can give me a date I can find out for sure or we can wait till your finished and I will ask, he said he will not charge me anything if he has a truck out that way... :up:



Will do PM sent... :)

[sdumper]

Naked picts before cleanup and insulation + electrical...

http://i190.photobucket.com/albums/z294/sdumper/100_1380.jpg
http://i190.photobucket.com/albums/z294/sdumper/100_1381.jpg

[road-runner]

Will do PM sent... :)

Ok and thanks, I am sure he will actually know more when we get close to that time also. :up:

[sdumper]

Went ahead and verified plumbing and Chris tells me the r1150 should be here today.
so I will recover the test gas, flush with nitrogen, revacuum and charge with r1150 early this week.

http://i190.photobucket.com/albums/z294/sdumper/IMG00640.jpg
http://i190.photobucket.com/albums/z294/sdumper/IMG00641.jpg

[clear cmos]

i love the ice show :D

[lesstutrey]

lovely unit, and lovely build time. It's nice to see builders who keep to timelines, i'm glad i worked with one getting my SS.

[gosmeyer]

Good deal :up:

Get that garage cleaned up :D LOL

[[XC] gomeler]

Good deal :up:

Get that garage cleaned up :D LOL

Scott's garage is always messy, I don't know how he finds tools in there :D Last time I was there I had to sweep the floor around the cascade as it was bugging me :rofl:

[sdumper]

gomeler;4037948']Scott's garage is always messy, I don't know how he finds tools in there :D Last time I was there I had to sweep the floor around the cascade as it was bugging me :rofl:

You should hear my wife :) She is so mad right now. First the fire, and then trying to make up time lost so working on two SS's and a cascade at the same time makes for an even worse mess than usual :)

Luckily she lets my braze and load test at the garage door entrance so I can work when its raining lol...

[sdumper]

Well I have a mystery :--)

The r1150 hasn’t arrived yet so I was using some r507 in the second stage while I worked on adjusting the TXV on the first stage.
After running for around 90 minutes or so the first stage temps started dropping. This left me scratching my head saying what on earth is going on and then I noticed my second stage pressures dropping steadily and the second stage temps rising.

This led me to believe a leak must have formed from the vibrations on the 2 stages. To verify this theory I added some gas to the second stage and started to inspect all the joints. After inspecting all joints and not finding any leaks I ran the system for 30 minutes and no pressure drops were recorded. Furthermore after sitting all night I observed no pressure drops.

So this leads me to believe is not my brazed joints because the pressure this morning is exactly the same as the pressure last night after the gas addition.
Therefore after eliminating the impossible I’m left with the probable which is my 3 flare fittings.

Flare 1) HPCO: I don’t think this is it because the pressure is holding nicely now.
Flare 2) Discharge on hot gas bypass: This doesn’t make sense because the pressure dropped while running meaning that gas would not have pushed back against suction to escape.
Flare 3) Oil Sep return to suction using 1/16 pipe brazed to ¼ inch pipe with 3/8 inch flare fitting: This is where I think the problem may be because when the oil sep fills during operation the float will rise and open the return. That said I don’t think gas would have escaped from the flare just oil...and if it is the flare why doesnt it leak gas when off and under pressure.

Will do some more investigating this evening after work but this is where I am so far.

[Foamy]

Hmm those are valuable problems, at the end it will be something you say about : " is that it?" and something njew has been learned.Hope you sort it out man, you have a nice project running!

[[XC] gomeler]

Did your 2nd stage suction peg to vacuum? Could be a small quantity of water that froze and plugged the capillary on the 2nd stage.

[Foamy]

gomeler;4038777']Did your 2nd stage suction peg to vacuum? Could be a small quantity of water that froze and plugged the capillary on the 2nd stage.
After 90 minutes?:)

[sdumper]

gomeler;4038777']Did your 2nd stage suction peg to vacuum? Could be a small quantity of water that froze and plugged the capillary on the 2nd stage.




I was building in a moist environment (lots of rain lately) but vacuumed for 12 hours before charging with r507. Also I will vacuum again before the r1150 charge probably for a good 24 hours straight just to be safe. However, in this case I dont think its water because both low and high decreased. Also If water froze in the cap I would have expected to see high side build up pressure and low side to drop...

[[XC] gomeler]

Nope. The highside pressures decrease with a captube block as the system stops rejecting evap/compressor heat as massflow drops to zero. The system will condense all the refrigerant in the system and then spin away sucking a huge vacuum until the capillary warms up and the ice crystals melt. You see this same phenomenon using co2 as a refrigerant.

Edit: hit your filter dryer with a light heat to help regenerate the decessant within it. Don't get it too hot as you don't want to melt the valve seal, may want to wrap the valve in a wet paper towel. 100C should do it, do this while in a deep vacuum and the dryer will be encouraged to release any water it has absorbed.

[sdumper]

gomeler;4038906']Nope. The highside pressures decrease with a captube block as the system stops rejecting evap/compressor heat as massflow drops to zero. The system will condense all the refrigerant in the system and then spin away sucking a huge vacuum until the capillary warms up and the ice crystals melt. You see this same phenomenon using co2 as a refrigerant.

Edit: hit your filter dryer with a light heat to help regenerate the decessant within it. Don't get it too hot as you don't want to melt the valve seal, may want to wrap the valve in a wet paper towel. 100C should do it, do this while in a deep vacuum and the dryer will be encouraged to release any water it has absorbed.

Thanks for the tip Ill give it an overnight vacuum tonight and cap it off with a little warm up....

Hey I called your cell about the r1150...not sure if you got my message.

[[XC] gomeler]

Thanks for the tip Ill give it an overnight vacuum tonight and cap it off with a little warm up....

Hey I called your cell about the r1150...not sure if you got my message.

I did, I was sleeping and then in class. I'll call you when Airgas calls me saying it has been delivered. They are usually very prompt with my LN2 deliveries so I have faith in them calling.

[sdumper]

I am starting to wonder if my Henry S-5181 OilSep may have been pre charged with poe. The manufacturer spec sheet says it comes pre charged from the factory on one of the spec sheets but on another it tells me to precharge with 4 ounces. I assumed it wasnt charged by the weight and so I charged with the recommended 4 ounces before use but that may also be the issue.

Well ill know soon enough because when I get home from work today it should be vauumed down to 50 microns or so. I had it vacuuming all night and it was 90 microns when i checked this morning and I would think several hours below 500 microns would be ample time to boil off any water vapor.

[sdumper]

Well a long vacuum ending in 2hours below 75 microns coupled with heating up my filter/drier may have solved the issue.

Temps with r507
Second stage -65c for past 45 minutes
1st stage -38c

Plenty cold enough to form ice in either the HX, evap or cap so im hopeful i got the problem sorted.
Will work on the second to try and get back closer to -40c and also add some load to the evap.

Chris did the r1150 arrive?

[ultralo1]

Well ill know soon enough because when I get home from work today it should be vauumed down to 50 microns or so. I had it vacuuming all night and it was 90 microns when i checked this morning and I would think several hours below 500 microns would be ample time to boil off any water vapor.


After a system has had refrigerant in it it will be harder to vacuum down. You are not only pulling off the water vapor, you have refrigerant dissolved in the oil. It will have to come out of solution also. Just for fun the next time you have to pull one down after having refrigeant in it, shake the comp a little when you get down below 500 microns.

Glad to see you got the temps back.

[sdumper]

Thanks Ultra...

BTW i have a TXV bulb question that you probably have an answer for...http://www.xtremesystems.org/forums/showthread.php?p=4041164#post4041164

[sdumper]

running for close to 3 hours and no issues but it is running in a deep vacuum with a low charge of r507...

Looking forward to charging with r1150...

http://i190.photobucket.com/albums/z294/sdumper/IMG00643.jpg

[gosmeyer]

Looks like issue solved :up:

[sdumper]

Looks like issue solved :up:


Yes sir :) :up:

[ultralo1]

The post said "nevermind"????

[sdumper]

The post said "nevermind"????

I did a little reading and realized my mistake and edited the post.

The post was originally an excerpt from a tech sheet talking about bulb placement for a TXV. My Bulb wasnt making good contact and the spec sheet said to place the bulb a couple of inches down stream from the equalizer. Well mine is only an inch down from the equalizer but it seems to be working fine now anyway so im not going to worry about it.

[road-runner]

Hows it going sdumper? ETA on ship date? When you think were close to shipping let me know please I will ask my friend about a truck... :shrug:

[road-runner]

cool

spamming to 100 post will get you no where...:down:

[Praz]

cooling storm, quit spamming.

[[XC] gomeler]

I'm on a flipping rampage with cooling storm, deleting threads and posts left and right.

[road-runner]

gomeler;4045078']I'm on a flipping rampage with cooling storm, deleting threads and posts left and right.

:ROTF: I am sure we will see a post soon about "Where is the for sale section" :rofl:

[sdumper]

Im just waiting on the word from Chris. As soon as the r1150 arrives I can have this tuned and ready to ship in a few days. The build is done but I need the r1150 for the second stage.

[road-runner]

Im just waiting on the word from Chris. As soon as the r1150 arrives I can have this tuned and ready to ship in a few days. The build is done but I need the r1150 for the second stage.

Oh ok, just let me know... :up:

[gosmeyer]

My eta is mid October

Well done, that makes things easy :up:

[sdumper]

I hate waiting ...

Well I my workbench is empty at the moment so I hooked up the heatloader and made sure the 1st stage could handle load.

At 310/314 watts on the second with all r507 the HX stayed at -31c/-32c with the bulb staying at -29.5 to -32c.
That said I was a little surprised the second stage evap didnt stay colder..it hovered at around -41c after 6 hours of running but I cant really draw any conclusions or make any second stage tweaks until I charge with r1150.

Anyway im please with the first stage results :)

[road-runner]

Talked to my friend yesterday with the trucks, he said he will request a load to atlanta when where ready with the company he hauls for to help me out. He may or may not get one, I will have to wait and see... :shrug:

[tiborrr]

Use some CO2 + R-507 or R-290 in the mean while for testing purposes, I always do that as the CO2 (R-744) is dirt cheap and somewhat eco-friendly.

[sdumper]

Use some CO2 + R-507 or R-290 in the mean while for testing purposes, I always do that as the CO2 (R-744) is dirt cheap and somewhat eco-friendly.

Thanks Tiborrr good advice!!

Quick update: Chris just sent me a PM and said the gas has arrived and I can pick it up tonight on my way home from work!!

Wish I would have reclaimed the r507 from the second and re vacuumed already....

Im wondering though if I can cut my vacuum time down and just reclaim and evac for an hour before charging with r1150.
My only concern is that the POE may have some trace r507 in it if I dont vacuum for a full 8 hours..

[road-runner]

Thanks Tiborrr good advice!!

Quick update: Chris just sent me a PM and said the gas has arrived and I can pick it up tonight on my way home from work!!

Wish I would have reclaimed the r507 from the second and re vacuumed already....

Im wondering though if I can cut my vacuum time down and just reclaim and evac for an hour before charging with r1150.
My only concern is that the POE may have some trace r507 in it if I dont vacuum for a full 8 hours..

Where not in that big of a hurry to cut corners. My house isnt finsihed yet either, about ready to fire everyone and get a new crew... :shakes:

[sdumper]

Where not in that big of a hurry to cut corners. My house isnt finsihed yet either, about ready to fire everyone and get a new crew... :shakes:

Ok Ill do a long 24 hour pulldown...

[sdumper]

couldnt resist...:)
I will give it a deep vacuum tomorrow although It doesn't appear to need it.

http://i190.photobucket.com/albums/z294/sdumper/IMG00654.jpg

[ruffus]

nice work man when u use your txv u use a ts2 or a tes2 but how do u get it so the flares don't leak on my system i problems with getting the flares to not leak so i had to go with the tua tev as it is a braze on one and i can't seem to get as low as temps with it as with the ts2 or the tes2 i am starting another for a friend and i am debatting whether i should use a TUA andts2,tes2 or if i should go with cap tube what would u use. i have cap tube,ts2 and a tes2 here on hand would have to go buy a TUA and a orfice for it.

now maybe the resson i can't get as low as temps as i want in my cascade is because of the orfice that is in it is a 2 (same as a 01 for a tes2 ) can this make a temp difference or is this only for capacity

[Moc]

My only concern is that the POE may have some trace r507 in it if I dont vacuum for a full 8 hours..

No problems with that. A 5 minutes vacuum is enough if the unit was filled with R507 and was water-free.
0,5% R507 vs. 99,5% R1150 will change nothing :) :up: !

[sdumper]

nice work man when u use your txv u use a ts2 or a tes2 but how do u get it so the flares don't leak on my system i problems with getting the flares to not leak so i had to go with the tua tev as it is a braze on one and i can't seem to get as low as temps with it as with the ts2 or the tes2 i am starting another for a friend and i am debatting whether i should use a TUA andts2,tes2 or if i should go with cap tube what would u use. i have cap tube,ts2 and a tes2 here on hand would have to go buy a TUA and a orfice for it.

now maybe the resson i can't get as low as temps as i want in my cascade is because of the orfice that is in it is a 2 (same as a 01 for a tes2 ) can this make a temp difference or is this only for capacity

I use Tes2 with "00" Orifice
I have found that when I do the following my flares are leak free:

1) Make sure I have a very clean cut
2) deburr to make sure I remove any overlapping copper
3) Take a wire brush attached drill bit and polish the deburred end of the pipe
4) Last flare and make sure its not too big or too small and most important no overlapp at all

That may be overkill but so far its worked perfectly.



No problems with that. A 5 minutes vacuum is enough if the unit was filled with R507 and was water-free.
0,5% R507 vs. 99,5% R1150 will change nothing :) :up: !

Perfect thanks!!

[road-runner]

Would be nice if there were no fittings at all to leak and everything was sil flossed, I hate to have to drive to atlanta if there is a little leak, also a friend of mine said something about that refrigerant in the oil and said it should have a triple evacuation done? I am not that good with refrigeration but I know Atlanta is a long drive if there are problems later. About one or 2 trips to Atlanta and I would officially be done with phase cooling... :up:

[sdumper]

Would be nice if there were no fittings at all to leak and everything was sil flossed, I hate to have to drive to atlanta if there is a little leak, also a friend of mine said something about that refrigerant in the oil and said it should have a triple evacuation done? I am not that good with refrigeration but I know Atlanta is a long drive if there are problems later. About one or 2 trips to Atlanta and I would officially be done with phase cooling... :up:

I did a tripple evac flushing with nitrogen on both stages in between and this was done before I ever charged with r507. I also did a deep vacuum for 28 hours again after my second stage appeared to have a block.


It is definitely water free my only concern was blending r507 and r1150.
Since I am a bit early and your not in a hurry I will spend a lot of time load testing and running continuously. I will aslo monitor the pressure each day until your ready to schedule a pickup.

Last, as for the flares they were tested at 350psi for 3 days and snoop was also used. I am certain they are leak free because the first stage was completed several weeks ago and the pressure hasnt budged.

[road-runner]

I did a tripple evac flushing with nitrogen on both stages in between and this was done before I ever charged with r507. I also did a deep vacuum for 28 hours again after my second stage appeared to have a block.


It is definitely water free my only concern was blending r507 and r1150.
Since I am a bit early and your not in a hurry I will spend a lot of time load testing and running continuously. I will aslo monitor the pressure each day until your ready to schedule a pickup.

Last, as for the flares they were tested at 350psi for 3 days and snoop was also used. I am certain they are leak free because the first stage was completed several weeks ago and the pressure hasnt budged.


Old trick I have seen done by some plumbers was to solder the whole flare joint, no leaks that way :rofl: of course your not going to get it back apart that way. Not in that big a hurry, we are just now starting to put the floors down, still have to wash the outside and paint, get everything moved back downstairs and in place and a lot of cleaning, probably be another week before the house in order again... :up:

[sdumper]

Its holding load nicely at 260 watts and -92c....
Temps arent as low on idle but you gain a lot in load. Idle is -103/-104c

100 watts -98c/-99c
180 watts -96c
230 watts -94c/-95c
260 watts -92.5c

[Moc]

Sounds okay for 2x 16ccm rotarys :) .
What temperatures show your first stage at load?

[sdumper]

Sounds okay for 2x 16ccm rotarys :) .
What temperatures show your first stage at load?

Thats whats strange first stage is a little warm at full load and it surprized me: -30.5c/-34c it swings back and forth a bit because of the TXV I suppose.

[Moc]

Remember, your first and second stage compressors have both 16ccm. So -30°C sounds absolutly normal for me.

[gosmeyer]

Its holding load nicely at 260 watts and -92c....
Temps arent as low on idle but you gain a lot in load. Idle is -103/-104c

That turned out well! :clap: You got a warm fuzzy feeling, LOL

[sdumper]

That turned out well! :clap: You got a warm fuzzy feeling, LOL

Thanks :up:

[sdumper]

road-runner, you can schedule a pick-up whenever your ready. If you want to let it sit for a few weeks thats totally fine.

:)

[road-runner]

road-runner, you can schedule a pick-up whenever your ready. If you want to let it sit for a few weeks thats totally fine.

:)

Ok let me see what he can do, if he cant get a truck out that way way what are our shipping options? UPS I think is what we talked about before? What is the measurements and weight please?

[sdumper]

Ok let me see what he can do, if he cant get a truck out that way way what are our shipping options? UPS I think is what we talked about before? What is the measurements and weight please?

Pallet only and the weight is just a wild estimate but 160lbs ...

[tiborrr]

That was a job very well done, Scott. Can you start a PC and do some proper overclocking tests? :)

Best Regards,
N.

[sdumper]

That was a job very well done, Scott. Can you start a PC and do some proper overclocking tests? :)

Best Regards,
N.

All I have is a QX9650 and it maxed out at about 5.5ghz on my last cascade.

[ruffus]

sounds like it worked out good for u. well the txv valve i used on this cascade was a TUA not a tes2 or a ts2 and it is braze on just have to work out the orfice as they are sized different or maybe on the next one i will use cap tube

[sdumper]

Parting shots...I am satisfied it is leak free so it will be crated tomorrow and placed on a pallet for UPS pickup monday.

Pardon the tools on top it made for a convenient cart to place a few things on while cleaning up :)

http://i190.photobucket.com/albums/z294/sdumper/100_1407.jpg
http://i190.photobucket.com/albums/z294/sdumper/100_1408.jpg
http://i190.photobucket.com/albums/z294/sdumper/100_1409.jpg
http://i190.photobucket.com/albums/z294/sdumper/100_1410.jpg

[Bobbylite]

looks clean scott, nice temps

[sdumper]

thanks

[road-runner]

Looks great Scott, UPS is supposed to be there Monday to pick it up, and thanks a million... :up:

[sdumper]

Sounds good...i finished the crate about 10 minutes ago and after dinner ill push it inside and pack it tight with padding.

[road-runner]

Oh, just remembered I still owe you for the crating materials, pm me what it cost and your paypal and I will take care of that... :up:

[Buckeye]

I just want to add here after reading through this thread that it is very close to going against the rules posted here.

http://www.xtremesystems.org/forums/showthread.php?t=155276

Many of the posts here could be handled via PM's, phone calls, or emails and not on this forum.

I am sure that all this will go as planned and the Cascade will be delivered and payed for as promissed, but in the past things have not gone as planned on many builds and the rules were made to reflect this.

Only prebuilt systems can be posted in the for sale section. Build logs can be made, but as I understand this by reading the link it is not for a build in progress with a customer. All personal transactions should be left out of the forums as XS or the Mods are not responceable for any transactions.

I hope you understand and if there is a problem with this post please feel free to contact a Mod and they will do as they wish.

My post was made as my opinion only.

Thanks

[sdumper]

I just want to add here after reading through this thread that it is very close to going against the rules posted here.

http://www.xtremesystems.org/forums/showthread.php?t=155276

Many of the posts here could be handled via PM's, phone calls, or emails and not on this forum.

I am sure that all this will go as planned and the Cascade will be delivered and payed for as promissed, but in the past things have not gone as planned on many builds and the rules were made to reflect this.

Only prebuilt systems can be posted in the for sale section. Build logs can be made, but as I understand this by reading the link it is not for a build in progress with a customer. All personal transactions should be left out of the forums as XS or the Mods are not responceable for any transactions.

I hope you understand and if there is a problem with this post please feel free to contact a Mod and they will do as they wish.

My post was made as my opinion only.

Thanks


Buckeye I am well aware of the rules...I know you mean well....so thats all I will say.

Roadrunner please send me PM's regarding financial transactions.

Buckeye is right and the rules are in place for a reason...

[road-runner]

I about had it with this place anyway, ban me...

[Jakethesnake011]

How much would something like that be? I am just wondering.

[runmc]

Buckeye is right. This thread has pushed the gone a bit over the limit.

Closed