piotres
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Posts posted by piotres
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I do not use liquid tape
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Leak testing of purple cascade:
Photos of purple unit by sparks.nl :
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Hello
As I said in previous topic this year I've made also some rebuilds and repairs of unit:
no.1 - repair a leak in prometeia mach 2 which was already modded by a phase-changer from Holland/Belgium - tune for 260W - evaporator 38mm unknown design - -42C unloaded/ -28C loaded
no.2 - changing of damaged compressor from 2nd stage of cascade which I build approx 8-10 years ago - tune for 315W mine old dummyload - evaporator 54mm steeper - -98C unloaded/-85C loaded
no.3 - repair a leak and changing of evaporator to bartx's 65mm evaporator in "deep purple" cascade (2x2.5HP) - spark.nl's unit- tune for 550W (max of bartx's dummyload) - evaporator 65mm bartx's - -120C unloaded/-94C loaded.
no1.
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no2.
Pick-up of no1.+no2. by happy owner
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no3.
Regards
Piotr
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Did you drown it into the water to check for leaks?
Yes, exactly, I want to be 100% sure
.Awesome work. What refrigerant did you use on each stage?R507/R1150 (ethylene)
Nice to see you back in action.Maybe you can remember your ultramarin blue cascade built back in 2007. This baby still works like a charm and didn't have a single issue. All I had to "fix" was a small piece of armaflex fallen off.
This piece of art brought us a few global world records. And it is much stronger than it was built for...
Last year we ran a 5960X with a calculated power draw of about 500W in wPrime 1024M. Highest evap-temperature was -89C. Not bad for a nine year old unit built for -96C at 250W.
Hats off for this masterpiece...
Sure I remember You - You were the only one from abroad of Poland who made a personal pickup of unit in past so I remember that well
.Good to hear that this unit is still working well. I very like that colour
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Hello
Maybe some of You remember mine phase-change builds which I made in 2006-2011 years. This year I back a bit to building phase-change, I repair few units and build one new cascade
I want to show You mine 2017 cascade. 28K + 25K BTU Toshiba rotaries, gauges, temperature displays and bartx's 65mm diam evap which made superb work
. Performance: evaporator on 400W = -96*C, on 530-540W (max of bartx's dummyload) = -92*C.
Regards
Piotr
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contact me if You are still interested: piotrek_wis@poczta.onet.pl
2018 cascade units
in Phase & Cascade overclocking
Posted
Hello
Want to show You a work which I done in 2018
. Sorry for not good pictures, using iphone 5s to make photos in dark workshop wasn't good idea.
1. Cascade to Belgium, 18kBTU + 12kBTU , bartx 65mm diam evap, R507/R1150, gauges, automatic oilseparator.
-86C@400W
-80C@550W
I have transported it by myself to Belgium :).
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2. Cascade to Spain, 18kBTU + 11kBTU , 54mm steeper evap, R507/R1150, gauges, oilseparator with handvalve.
-85C@400W
-83C@500W
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3. Repair a suction line leak +refill of 2nd stage of cascade from Austria (not built by me), two R134a rotaries looks like approx 8-10k BTU (do not check specs) , unknown evap diameter under 40mm, R404a/R1150.
Before it caught a leak it was running with R23, do not have problems after R1150 regas.
-103C no load
-90C@250W (cascade is approx 10 years old and were build to hold load approx 250W, mine work was only to repair a leak and refill it so I do not test it with bigger loads). It should handle 300-350W.
Regards
Piotr