Well I have taken the plunge and started my first cascade after building 4x single stage units now I thought it was about time and as it’s my first it will be as simple as possible
I won’t be going after uber temps with this one but you never no
I have pulled together some old parts I had lol what’s left of my first vapo
And some new stuff that I will be able to use again for the next project
Here are the parts so far:
High stage:
Danfoss NL11f(SC18 if the NL dont cut it) 402a, hx 12 feet of 1/2 copper with a 1/4 pipe in it (that’s the large coil), 1/4 copper pipe for most of runs on this stage, filter dryer with read point, cap tube (still to work out), sight glass, vapo condenser with pre cooling coil
Low side:
Danfoss NL11f co2/402a
Danfoss oil separator or I might have ago at a home made one
Hand valve oil return
High pressure cut off valve
Control unit something along the lines of this unit EWPC-901 I may have something else coming, cap tube length undecided as yet
My choices of gases is based on the fact that I already have the 402a and I can get the co2 cheap. r23 will be In the next one
I won’t be going after uber temps with this one but you never no
I have pulled together some old parts I had lol what’s left of my first vapo
And some new stuff that I will be able to use again for the next project
Here are the parts so far:
High stage:
Danfoss NL11f(SC18 if the NL dont cut it) 402a, hx 12 feet of 1/2 copper with a 1/4 pipe in it (that’s the large coil), 1/4 copper pipe for most of runs on this stage, filter dryer with read point, cap tube (still to work out), sight glass, vapo condenser with pre cooling coil
Low side:
Danfoss NL11f co2/402a
Danfoss oil separator or I might have ago at a home made one
Hand valve oil return
High pressure cut off valve
Control unit something along the lines of this unit EWPC-901 I may have something else coming, cap tube length undecided as yet
My choices of gases is based on the fact that I already have the 402a and I can get the co2 cheap. r23 will be In the next one

