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Hello everyone. I'm working on a McQuay centrifugal chiller with microtech 100, and has the following problem: by changing the chilled water temperature (LWT), and hit the enter the new value is accepted, but after a few seconds, the old value returns. That is apparently the new value is not saved as it should. anyone know the reason and the solution ?
Is there a minimum set point parameter that stops the set point being lowered
Hi fellow. The actual set point is 6.0C, and a trying to set in 7.0C.
Resolved. I found connected to the equipment a Jonshon controls controller, who thought no longer in use, but it's who made it impossible to exchange the LWT. After removed LLLB connection everything worked ...