The large lab chiller setups I have seen are just multiple smaller chillers in parallel. There's a PLC or similar device load balancing them but they're otherwise independent. The reason being that if one breaks down, the remaining units take the load with no impact on operations. (In business, unplanned downtime is expensive!)
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To my surprise, shortly after Naomi Wu gave me a bit of fame for making good use of solar power, Allie Moore got really jealous of her...
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