Well the wiring is done and the cascade is now automated
the Carel IR32 is an awful controller to figure out, but easy to program once you do, so it's ok. I was disappointed though, that the switches can't be reversed. It has a 3 pole setup, which is fine. You can just change to the normally closed pole to be normally open (sounds stupid doesn't it?) but the controller will only 'turn on' and not the other way around. When it reaches the temp, it switches to the normally open setting.
So that's all set, it's set to start stage 2 at -40, and for safety will shut down stage 2 at -30.
the thing runs at 350w at around -35 at the warmest, so if it 'falls over' at high load, it shuts down before it even hits the high pressure switch. I already tested that and it's good to see, so there's a double safety there.
It's pretty cool, you don't need to switch on the second stage or monitor it in case of a warmup on stage one. Just does it's own thing
Down side, stage one has a leak but it's the access valve, so no big deal. I've already pulled the gas, and will get that sorted out and recharged tonight/tomorrow.
Stage 2 is still perfect though no leaks and no issues, just -100 action
Turns out my father knows a guy who does industrial 'flashing' stuff out of 16 guage steel. I'm gonna talk to him tomorrow and see, but it may work out to an inexpensive panelling system. Just panels with 90 bent ends. Nothing fancy, but will look decent and be pretty strong. Easy to cut and mod too for fans, not being too thick.
Trying to stay away from wood. It's ok, just not what I like in a big heavy frame.
so will get pics of it pretty soon. not til the panels are there, though One switch and one controller, and if I can, one more display for the evap temp. Should get out to buy a PT1000 probe tomorrow, and if I can get panelled up she's ready to go!
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