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Old 02/09/2018, 11:21 AM   #2
jamie1981
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Join Date: Jul 2014
Posts: 284
All the TM4 does is allow you to use 4 temp probes with the controller. For example if you have for separate tanks you could read the temp of each tank with one controller and control the heater in each tank separately assuming each heater is plugged into its own outlet on a PB4.

To clarify the TM4 does NOT power the heaters it is just a module that connects to the head unit via bus cable and will read up to 4 temp probes.

Why do you have heaters in your display and sump?


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