Cascade 5 (2 Stage GPU)

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cascade 5 GPU


First stage

compressor: LG NJ362 R-407C i will also testing a PG130XIT-4CRE 8000btu for future use on this stage
Hx: 12 plate
Danfoss tev: Tes2 00 orifice
Receiver: RLV 02 PED 77*220 V=0,88l
Condenser: 1,10kW
in line filter 1/4 flare
High pressure gauge
water cooled DSH

The copper pipe sizes used in this stage are

1/4 inch used on the expansion valve suction sensor to the suction return
5/16 compressor to the condenser and receiver
3/8 used on the run from the receiver to the expansion valve and HX suction return
1/2 used on the expansion valve to HX

Fittings

1x 5/16 straight
1x 5/16 tee
2x 3/8 tee
1x 3/8 elbow
1x 1/2 elbow

2x 3/8 flare nut
1x 1/4 flare nut
1x sevice port

second stage

compressor: PG130XIT-4CRE 8000btu
Oil separator: temprite 900
danfoss high pressure cut off KP 5
cold ice mini condenser
cold ice pressure relief valve 24 bar
High pressure gauge
spun drier/filter
Chilly type evap with one extra turn
1m braided suction return

refrigerant: R507/R23 for tests with PG130XIT-4CRE 8000btu on 1st stage

then R507/R1150 when the LG NJ282P R goes in


the unit will also have shut off hand valves located on the suction return and cap tube for easy change of evaporators and setups

there will be no case for this unit

the other units

cascade 1 http://www.xtremesystems.org/forums/...d.php?t=143340

cascade 2 http://www.xtremesystems.org/forums/...d.php?t=105549

cascade 3 http://www.xtremesystems.org/forums/...d.php?t=117279

cascade 4 http://www.xtremesystems.org/forums/...d.php?t=126920