Different nature of the autocascade beast, I guess. Used to lower statics, like, 100psi, in single stages.
What do you mean you wonder if the compressor can start without drawing too many amps? Haven't you run it already?
Different nature of the autocascade beast, I guess. Used to lower statics, like, 100psi, in single stages.
What do you mean you wonder if the compressor can start without drawing too many amps? Haven't you run it already?
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Yes I have run it (how else would I have gotten the data), but the system was originally started up day before yesterday with a lower static BP of 154 psig. I then boosted up its charge while running, in order to tune it for 150 watt operation, and then incrementally reduced the applied load to obtain the load profile curve you saw above.
I shut it down, and watched its pressure build while also observing the temperatures of the stack TC's. When it got to nearly 0C and was just approaching 200 psig, I was satisfied that it was tracking with what I had estimated the additions should increase it by. When I get a chance today, I'll try a re-start and see what happens. I'll also verify what the warmed up BP is as well.
Michael St. Pierre
- Worked 15 years for Polycold Systems
- Now Self-Employed
- Manufacture Heat Load Controllers
- Also do contract service work on Polycold units
Side note: I usually don't respond to PM's or emails regarding the projects that I post in the forums. I feel it's much more fair to all, to answer questions within the forum topics themselves.
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