As my original thread went to hell with the last data loss here at XS, I am reposting it (thanks to google's cache)
Components:
High stage:
- compressor: reciprocal ACC MP14FB (1/2HP)
- condenser: Empor 1.21kW + 16W 220Vac motor + 250mm fan
- filter/drier: Danfoss 60g
- refrigerant: R-507
- metering device: Alco TIS-SW thermostatic-expansion valve + 00 nozzle
Cascade HX:
- 12-plate stainless-steel HX
Low stage:
- compressor: reciprocal ACC MP14FB (1/2HP)
- desuperheater: Empor 0.21kW + 19W 220Vac 120x38mm fan
- oil separator: Denaline (non-floated) + Castel ball-valve for regulating oil return
- filter/drier: Danfoss 30g
- refrigerant: R-1150 - Ethen/ethylene
- metering device: TC-31 (0.031" ~ 0.8mm) cap tube
- expansion tank: Fach 1.6L reciever - modded
- 0.6m + 0.6m = 1.2m suction line
- evaporator: Dimastech V5 --- i used my own Maze GT1 evap lineset
Safety:
- Alco HP @ 25bar (low stage)
- 2x HP pressure gauge Wigam
- expasion tank 1.6L (low stage) --- not incorporated in finished unit :p:
- HS-LS bypass
Building the case - backbone of this cascade:
http://www.shrani.si/t/23/gZ/3kFehBrB/img00026.jpg http://www.shrani.si/t/3V/BJ/2Zj5FjsA/img00028.jpg http://www.shrani.si/t/2F/8d/1GQoZBhS/dsc0038.jpg
The Dimastech V5 evaporator lineset i got from OC-bay for ~ 80€ brazed & shipped:
http://www.shrani.si/t/n/dA/VIaqpQt/dsc0031.jpg http://www.shrani.si/t/3m/eu/HCVSxW5/dsc0033.jpg http://www.shrani.si/t/3u/43/74zTfkm/dsc0032.jpg
Essential goodies:
http://www.shrani.si/t/3Q/YI/38FepVJZ/dsc0039.jpg http://www.shrani.si/t/2x/dv/hb0jkMq/dsc0040.jpg http://www.shrani.si/t/C/5P/1iEtXlbz/dsc0030.jpg
The heat-exchanging system:
http://www.shrani.si/t/1e/31/4WbVpq7i/dscn1086.jpg http://www.shrani.si/t/3y/6q/5ljTHuk/dscn1087.jpg http://www.shrani.si/t/2J/xW/3fb8TXhN/dscn1092.jpg
Building the high-stage & initial charging it:
http://www.shrani.si/t/2O/zL/2hPRAP8G/dscn1098.jpg http://www.shrani.si/t/p/Hd/veiqcYy/dscn1100.jpg http://www.shrani.si/t/1Y/kP/1yAl7Qu2/dscn1101.jpg http://www.shrani.si/t/3y/yQ/4gEjIoK3/dscn1104.jpg http://www.shrani.si/t/1Y/12S/20W7nC3m/dscn1105.jpg http://www.shrani.si/t/39/iZ/3qLNxLm5/dscn1106.jpg
http://www.shrani.si/t/10/LB/2ixF8R2/dscn1116.jpg http://www.shrani.si/t/3Z/Cd/4CcrXkuG/dscn1117.jpg
Mr. Frost visits the cascade HX :yepp:
http://www.shrani.si/t/3t/Ra/1dC2Nncd/dscn1119.jpg
Completing the low-stage, only few connections are left to be done:
http://www.shrani.si/t/3F/5O/uXGsD2p/dscn1121.jpg http://www.shrani.si/t/1n/bd/3mvnWPJk/dscn1122.jpg http://www.shrani.si/t/2s/vx/40I6u78D/dscn1123.jpg http://www.shrani.si/t/2X/hP/3G6sAxSo/dscn1124.jpg
Brazed cascade:
http://www.shrani.si/t/3S/sL/3A5jLcgx/dscn1147.jpg http://www.shrani.si/t/3m/12X/3CmYo2tk/dscn1146.jpg http://www.shrani.si/t/j/Lq/qOLy5UY/dscn1145.jpg http://www.shrani.si/t/c/72/3fdQ10zJ/dscn1142.jpg http://www.shrani.si/t/37/qK/3337fKVC/dscn1141.jpg http://www.shrani.si/t/33/sd/4DNmN3mV/dscn1139.jpg http://www.shrani.si/t/j/Ki/4o8TG4ur/dscn1138.jpg
Low stage is leak-free and charged with R-410A for the testing purposes, need to the wire the low stage compressor today though. :rolleyes:
Best Regards,
Niko :up: