piotres

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 :). ------------------------------------- 2. Cascade to Spain, 18kBTU + 11kBTU , 54mm steeper evap, R507/R1150, gauges, oilseparator with handvalve. -85C@400W -83C@500W -------------------------------------------------------------------- 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

I do not use liquid tape

Leak testing of purple cascade: Photos of purple unit by sparks.nl :

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. --------------------------- no2. Pick-up of no1.+no2. by happy owner . -------------------------------- no3. Regards Piotr

Yes, exactly, I want to be 100% sure . R507/R1150 (ethylene) 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 .

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

contact me if You are still interested: piotrek_wis@poczta.onet.pl