@Toker Ace I just had an idea: I have two chillers- and two main cooling lines from the circulation pump, through spaces, and back to the res. What if I simply cram the 1/2" chiller intake line up into the end of each 3/4" warm water return? My theory is that it will retain enough line pressure to feed the chiller adequate volume, it will allow excess water to bypass and the chiller will see the water at its warmest, before it his the reservoir and mixes with cold.
Now here's the fun part; since I run a flip schedule, each half of the cooling system goes to a side that is always on- with a short gap, to ensure I don't run over my amp limit- and a side that's always off. The side that's dark will send cooler water so its chiller will only run if the whole system's water temperature is rising, as the dark side itself adds very little heat.
Meanwhile, the chiller on the day side is getting the hottest water in the system, fresh from the source. Yes, it will run more, and longer, but that's not such a bad thing as long as the unit does get rest- and these would; they'd play tag with the load, alternating as the rooms flip on and off. The day side's chiller is the primary, and the other backup- and a dozen hours later, they reverse themselves automatically, based on the temperature change coming through the lines as the room's daily heat cycle progresses.
How many ways can this cat get skinned again? Lol
Am I on the right track with the above, or are there flaws in my thinking?
How expensive are VFD controllers?