The Storks...

[Ozzfest05]

So what would you do R507 R1150 R1150 R14?

[before]

No it's gonna be the same matter with R1150.

Perhaps R507, R23, R1150 and R14.

[before]

I've played a bit with superheats to get these. (3 stages running)

1st TEV @ -55.2C



2nd TEV @ -101.5C



3rd stage CPEV @ -130.7C (crap pic sorry)

[sdumper]

Very nice job as always...i really like those compressors so far

[sofos1990]

wow -130C on load !!!!
That's a monster

[before]

Very nice job as always...i really like those compressors so far

Thx. Well, IIRC yours was built with even smaller rotaries, right? And it outperformed mine as a 3-stager... No need to be obsessed with beast compressors.

Actually, I'm doing pretty much the same this time than with my former 3-stager which was 1.5x time more powerful. Dunno why; perhaps that's because of the CPEV.

Which were the refrigerants used for your 3-stager? I'm hesitating to use R23 into the second stage.

wow -130C on load !!!!
That's a monster

Thx. This is not under load btw. I wished to use it for benching but I missed the mounting Will be for the next time. Anyway, if it works like my old unit, the difference won't be large.

[Patrickclouds]

yeah 300watts minimum

and the firste stage withe the 00 orifice in the tev that is ratet for 500watts is holding the load of the second and third stage

those numbers say nothing if we don´t know how much load are on the last stage evaporator.

[-EC-UnRockStar]

i´m the same opinion

[before]

I've moved for R23 into 2nd stage today. I'd like to have more HSP for the 3rd stage R14. So, I've tuned the first TXV superheat to get about -40C there for an appropriate use of the R23. I haven't removed the R1150 from the 2nd stage TXV yet, and got -74C with a huge flow of R23 along the suc side to the compressor. Tomorrow I'll remove the R1150 from the bulb and fill it with R23. It would be nice to reach something like -78C.

Also, I've tried the 3rd stage TXV. It sounds quite promissing. Anyway, I did the testing with R14 into the lowest stage, and it doesn't work well this way. Condensing temp was about -115C (3rd stage TXV was stuck at -118C) which is possibly way too low.

[piotres]

so in 3rd stage You are using cpev or txv now ? that -130c was with R1150 ?

[Ozzfest05]

so in 3rd stage You are using cpev or txv now ? that -130c was with R1150 ?

In -130 shot its CPEV r507 r1150 r14

[Tetrafluorometh]

Hey buddy i have R22 Danfoss TES or TEV not sure which i can check, got 2 of them if they fit or help with this!

[before]

so in 3rd stage You are using cpev or txv now ? that -130c was with R1150 ?

TXV for HX, CPEV for CPU evap. -130C was with R14; this is within the expectations. I did couple of runs of my favorite benchmark app Spi32M and it holds load in the mid -120C range this way. This is comparable with my late 3-stager which indeed was 1.5x more powerful with huge desuperheaters.

Anyway, as I've changed the 2nd stage refrigerant, this is not valid anymore.

Peter buddy, in case you never did so, you should really try a modded TXV; this is lot of fun and works fairly well. Next time I'll put one directly over a CPU evap.

Hey buddy i have R22 Danfoss TES or TEV not sure which i can check, got 2 of them if they fit or help with this!

Thanks, I already have everything I need.

[Tetrafluorometh]

Thanks, I already have everything I need.

Only offering Before, good luck