Nah...

I owe the thread participants an apology: I completly missed the subject of the OP question. I will be reading much closer next time. My apologies.

Thanks for the links, all.

If I can hijack the thread a bit, where can I find a better answer to the question, "Why doesn't superheat in a commercial evaporator during system operation cause a pressure increase?" other than, "Because it's dynamic." would be appreciated. I think I got some of it in the links provided but am not sure.

Thanks.

You need to be a bit more specific. Increase in operating superheat?

Increased superheat in an evaporator does increase system pressure, but not so much on the low side. Low side pressure is maintained by pump suction and refrigerant flow. Extra heat shows up on the high side pressure first while the system is running in range.

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