Hey, guys here's the setup I currently have running.
I have three zones, one for the bedrooms, one for the main floor and one for my basement slab. These are on two Taco boards since the bedroom zone is separated with actuators for each room and has its own slaved taco board. The second taco board is connected to the boiler and has the slave, the slab and the main floor zones. I HAD an indirect on DHW loop and set to priority 1. I replaced it with an electric on-demand and disconnected the zone 1 pump and wiring from the boiler.
First Question: Did I need to replace the DHW? Can I draw domestic directly from the boiler using a flow switch (if that's even needed)? (I'd be running an open-loop and need to flush the system and probably put in a filter or use softener water.)
Second Question: Can I move the bedroom zone pump and Taco board wiring to Zone 1 and set it to boiler priority 1? I am having issues separating which zones and pumps are needed on the boiler set up. I want the bedrooms to be priority 1 since we have a baby. Then I assume I could set each of my remaining zones to pump 2 and 3 on the boiler control.
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