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Buderus Logamatic with TACO Zone Control and Thermostate "C" wire
I have an oil fired Buderus with Logamatic and TACO ZVC406 Zone controller and Sensi WIFI thermostat. I just added the thermostat to a zone and it requires a "C" wire. My other zones and thermostats do not require C wire. There is a C post on the TACO for that zone but what I hadnt noticed before is that the TACO will not always have Power (Power Light is off). When it does C wire is fine, when it doesnt Thermostat drops WIFI. I think what is happening is the Buderus Logamatic for various legit reasons does not always power the TACO and only provides power when it thinks its needed to turn on zones. When Power light goes on, then the zone lights also go on appropriately.
Anyone have an opinion about this Logamatic behavior? Is it working as it should? I would have thought Power on TACO should "always" be on regardless of zones calling for heat. Note: when I put the Logamatic in Manual mode, power goes to the TACO immediately.