White cascade with bypass

[piotres]

Hi

Cascade in BIG case , with 2 independent condensors (one 4.8 kw + another 0.75kW for desuperheater), bypass valve and ...."standart" compressors . This time I used Danfoss TS2, not Alco Ti-HW on 1st stage . All motor fans are EBM-Papst .

Specs :

compressors: Toshiba PH160T2-4L2 on 1st stage + Toshiba PG180X1C on 2nd stage
evap: steeper 42mm diam/41mm tall
XV: Danfoss TS2/captube 0.9 mm
HX: plate HX , 12 plates
condensers: 4.8 Kw, alu-cu, cooled by 2x 254mm/230V fans + desuperheater for 2nd stage 0.75kW , alu-cu, cooled by 170mm/230V fans
refrigerants : R507/R1150
oilseparator : Shine Year automatic
safety : RANCO cut-off, FACH 1.5l expansion tank
case : Laser cutted and powder coated case, 89 x 71 x 51 cm, wheels
others: Bypass valve - Castel handvalve, 2*REFCO panel gauges (discharge pressure), ANACONDA shocks absorber on 1st stage suction line, polished and clear coated pipes, 350mm fan on back wall

























From some short time, I've started to use ONLY EBM fans in mine builds ...cheap chineese are just not enought trustworthy.



Clear coat as almost always .













Again ...sorry for funny despriptions, I know that's maxed NON-pro .









Final unloaded temperature.



Bypass is a little bit opened - it worked quite good like for a ordinary handvalve . The littest drop can be set under 260W load is -91*C from -94*C when valve is fully closed .



That's temperature on 260W dummyload after 2 hours test.



And that's 1st stage .

















Regards,
Peter