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Aquastat and ZVC
phaiel
Member Posts: 2
Comments
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Use the tt contacts on the Taco control to run the boiler instead of the end switches on the zones. Keep the pump wired to the aquastat as it is right now. Assuming of course you are using end switches to control the boiler and pump, and the pump is wired to the aquastat.
This way when the thermostats open the zones, the Taco control will close a dry contact and fire the boiler and pump.
Rick0 -
do you have one or two circulators in your system?
take a look at the attached wiring diagram
Dave Holdorf
Technical Training Manager - East
Taco Comfort Solutions
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Just one circulator0
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Yes the aquastat will still function. The Taco zvc has two sets of dry contact outputs. Use one to the TT on the boiler and the other set to run the system circulator.
TaylorServing Northern Maine HVAC & Controls. I burn wood, it smells good!0
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